(12) Section 8 - Dec 2004

ARBORICULTURAL SURVEY ANDASSESSMENT OF EXISTING TREES

SECTION 8

Environmental Assessment Certificate Application for the Richmond•Airport•Vancouver Rapid Transit Project

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8 Arboricultural Survey and Assessment of Existing Trees

8.1 Executive Summary

During July through October 2003, Arbortech Consultants Ltd. undertook an arboricultural survey of 1,259 trees and stands of natural planted areas within the RAV Project area, the results of which are summarized in this section. Detailed survey results are provided in Appendices 8-A, 8-B and 8-C; Tree Inventory Mapping presented in Appendix 8-D indicates the location of existing trees, for reference purposes. The Richmond study area contains a young tree resource, planted approximately three years ago. These trees were consistently found to be in good condition and are suitable for either retention or transplant. The Vancouver International Airport study area contains trees in three types of landscapes. The mature trees in the eastern sections of Grant McConachie Way and the North Service Road are well established in open landscape environments. These are suitable for retention, but are too large to consider for transplant if they fall within the final alignment. Berms planted with a mix of mostly native conifers were found to be in good condition, with the exception of a few isolated declining or dying trees. A linear row of young maple trees between the driveway and parkade is in good condition. These areas are suitable for retention and selection of transplant trees, if the alignment conflicts. In Vancouver, boulevards on both sides of Cambie Street contain conventional street tree planting in rows. The trees, which are generally young, developing, and in fair condition overall, are growing in narrow planting strips in poor soil conditions. The Cambie Heritage Boulevard, with an average width of 10 m, contains a randomly spaced planting of various tree species. The trees range in age and structural class from newly planted saplings to mature form. In general, the mature trees were observed to be in fair to good condition, although some are nearing the end of their lifespan. The young trees were consistently found to be in poor condition, due primarily to poor soil conditions in the median. The established and mature median trees are suitable for retention, but are not well


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suited for transplant. Due to the ongoing decline of some trees and the limited ability to establish replacement trees, the Cambie Heritage Boulevard would benefit significantly from renovation for soil improvements, regardless of any future land use changes. During the detailed design of the RAV Project, suitable site trees can be considered for retention. Strategies for protecting retained trees must be developed and implemented to ensure that they can be safely retained. Where trees need to be removed to accommodate the new infrastructure, replacement strategies will need to be developed. The specifications for replacement must provide for selection of appropriate species and sizes, as well as suitable soil and site conditions to support the planted trees to maturity. 8.2 Background

Arbortech Consulting Ltd. was retained in association with Seacor Environmental Inc. to provide an arboricultural survey and assessment of existing trees located within four sections of the proposed RAV corridor. These four sections consist of: • Richmond – No. 3 Road medians from Westminster Highway to Bridgeport

Road; • Vancouver International Airport – Trees aong the RAV corridor from

Templeton Street to the airport terminals; • Vancouver – Cambie Heritage Boulevard from SW Marine Drive to King

Edward Avenue; and • Vancouver – boulevards on both sides of Cambie Street from SW Marine

Drive to King Edward Avenue. From July through October 2003, Arbortech completed the field work and data analysis to inventory and assess existing trees. Trees on the Cambie Heritage Boulevard have been tagged and full details of species, size, location and condition were recorded in a detailed tree inventory (Appendix 8-C) and on CAD1 tree inventory mapping (Appencix 8-D). Existing trees along all other portions of the proposed RAV corridor were inventoried for species, size and

1 Computer-assisted drafting


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location and recorded on CAD mapping only. The health/condition of these trees was determined to be consistent and is described in SECTION 8.3. Supporting documents prepared for this study are included as appendices: • Appendix 8-A – Tree Inventory Summary Species List and Quantities. Lists

all species found along the RAV corridor and is intended as a reference for CAD mapping and this report.

• Appendix 8-B – Replacement Tree-Unit Cost Summary. Summarizes replacement costs for existing species, based on information supplied to Arbortech by four local wholesale nurseries.

• Appendix 8-C – Detailed Tree Inventory – Cambie Street Boulevard. Lists trees found within this portion of the study area, compiled from field notes prepared by project arborists.

• Appendix 8-D – Tree Inventory Mapping. Plans based on photogrammetric base mapping provided by RAVCo in electronic CAD format, showing tree locations, size and species in Richmond – No. 3 Road medians (Appendix 8-D1), Vancouver International Airport – Grant McConachie Way (Appendix 8-D2) and Vancouver – Cambie Street (Appendix 8-D3).

8.3 Tree Inventory Assessment

8.3.1 Richmond – No. 3 Road Medians

Total Inventory: 229 trees This portion of the study area (see Appendix 8-D1) consists of a relatively new landscape that was installed in approximately 2001 as part of the No. 3 Road upgrades. During these upgrades, undertaken to accommodate centre lanes for the B-Line bus, two new medians of varying width were constructed, dividing the road. Plantings within the formal landscape of the medians consist of grass, shade trees, ornamental trees and shrubs. All trees in these medians were inventoried during this assessment. Dominant species included Acer rubrum var., Quercus palustris, and Pseudotsuga menziesii, with areas at road intersections containing groves of six other species with smaller populations. Overall, the trees were found to


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be in good condition, with isolated instances of trunk wounds due to mechanical damage, as well as a few stressed trees. Planting site conditions in the medians are considered harsh due to the proximity of adjacent road surfaces and the surrounding urban environment. During the assessment, several test holes were dug and/or probed. The fertile soil within the No. 3 Road median was found to be of good quality and commonly of adequate volume to sustain tree health to maturity. Soil depths ranged from 28 cm to 42 cm. In instances where the median is narrow, the volume of soil may be insufficient for trees to develop suitable structural root mats and/or to sustain the trees to maturity. 8.3.2 Vancouver International Airport

Total Inventory: 110 trees, plus dozens of trees in ‘natural’ landscape areas The landscapes along the proposed RAV corridor on Sea Island vary. The eastern section of the corridor is mostly open with vast grass boulevards, medians and fields, while closer to the airport terminal, the landscape is characterized by dense plantings of naturalized trees. These landscapes vary in age class, species, form and landscape purpose. Older trees are found in areas along Grant McConachie Way and the North Service Road while younger trees occur in the areas closer to the airport terminal where recent construction projects have included landscape renovations and new installations. The two distinct areas on the airport lands are described below (see maps in Appendix 8-D2 for an inventory of trees in the ‘open’ landscape area).

8.3.2.1 Open Landscape Trees

The open landscape tree resource consists of isolated linear rows and small groves of trees found near the Air Canada North Hangar, along the North Service Road, and fronting the west side of the parkade near the airport terminal. These trees are generally located in mowed grass areas. Dominant species include Acer rubrum var., Carpinus betulus, and Quercus palustris. Small numbers of eight other species also occur in this area. The primary species were in fair to good condition. Most of the Carpinus and


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Quercus are of mature structural class, while the Acer, planted following the relatively recent parkade construction are still developing. The Acer are generally located within restricted planting sites along road edges where there is potential for them to become root-bound due to their proximity to buildings, roads and infrastructure. The Carpinus are consistently found closely spaced in groves of two or three trees in a wide boulevard in front of the Air Canada North Hangar. Their crowns merge to form one canopy. This planting style creates dependence on the adjacent trees in terms of structure, and encourages an asymmetrical form, where interior foliage between trees is suppressed. For the purposes of the RAV Project, these small groves of Carpinus should be considered as one tree such that, if one tree requires removal, then all of the trees in the associated grove will also require removal. The Quercus are generally planted in conventional linear rows with enough space between trees to ensure that the crowns are independent of each other or only slightly merging. 8.3.2.2 Planted ‘Natural’ Landscape Areas

Dense stands of trees within natural landscape areas are found near the airport terminal along Grant McConachie Way, as well as in sections of the north and west parkade frontages. These areas are a planted resource intended as a low maintenance background landscape, where groundcover and shrub planting combine with the trees to emulate natural environments. The trees in these natural areas are young in age class. Some areas were planted circa 1996, while others were planted and/or renovated circa 2001. These areas are identified on the tree location maps in Appendix 8-D2 as hatched areas. The trees consist of densely spaced immature specimens of Abies spp., Acer spp., Betula spp., Cornus sp., Malus sp., Picea spp., Pinus spp., Quercus sp., Pseudotsuga menziesii, and Tsuga heterophylla, with variable mixes and predominance. The planting sites generally consist of raised berms. Shrubs and groundcovers dominate the understorey, forming a dense foliage mass that provides good landscape screening. Although the trees in this area are


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generally in good condition, a few isolated dead or dying specimens were noted within the groves during the assessment. Also, some trees in the natural areas near the north parkade frontage appear to have been propped or guyed, likely because they blew over. This could indicate shallow or saturated soil conditions. 8.3.3 Vancouver - Cambie Street Side Boulevards

Total Inventory: 462 trees The side boulevards along Cambie Street are lined with conventional street tree plantings in the planting strips between the sidewalk and the road curb. A range of age classes and a variety of species occur in this portion of the study area. Dominant species in different sections of the boulevards include Acer circinatum, Carpinus betulus, Chamaecyparis pisifera, Cornus spp., Prunus cerasifera ‘Pissardii’, Prunus serrulata var., Pyrus calleryana, Sorbus aucuparia and Thuja oocidentalis var. Several other species occur in small, sparsely distributed populations. The condition of the trees in the side boulevards ranges from fair and good to poor in isolated areas and with respect to certain species. For example, some of the younger trees appeared to be chronically stressed and in poor condition, while in other areas, especially in the northern extents of the alignment where the boulevards are wider, they appear to be productive. While isolated instances of trees in poor condition were observed for most species, the Sorbus were consistently found to be stressed. The planting strips along Cambie Street represent a harsh growing environment, with the narrow width of the boulevards providing limited available soil volume, potentially leading to root-bound conditions. Although test excavations were not undertaken in the planting strips, soil conditions are expected to be similar to those of the central boulevard (see SECTION 8.3.4).


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8.3.4 Vancouver - Cambie Heritage Boulevard

Total Inventory: 458 trees The Cambie Heritage Boulevard consists of a wide, grassed, open landscape that separates north- and southbound traffic lanes. It is a dominant landscape feature in the project area and the main focus of this survey. Trees growing in the central boulevard appear to have been planted in a phased process, as reflected by the presence of immature, maturing and mature age class trees. Trees in the Cambie Heritage Boulevard are generally spaced adequately, although some small groves of Prunus have merged crowns. The merged crowns are not a detriment if all of the trees remain intact, however if one or more trees in a grove needs to be removed, there would be impacts to the remaining trees. Typically, the growth form of these trees is open. The predominant species in the boulevard varies along the RAV corridor with Carpinus betulus, Chamaecyparis nootkatensis, Fagus spp., Magnolia spp., Malus sp., Picea omorika, Prunus serrulata var., and Sequoiadendron giganteum being found in moderate to large numbers. Many other species are found in small populations. Condition ratings were applied to each tree during the site assessment. Generally, trees that appeared healthy and did not have any major structural flaws were rated as “good”. If a tree appeared to be suffering from minor health problems and/or a minor structural flaw, then it was rated as being in “fair” condition. Trees that were dead, dying, suffering from severe disease and/or pest problems or that had a severe structural defect were rated as being in “poor” condition. The following summary of tree condition for the Cambie Heritage Boulevard is derived from the inventory list presented in Appendix 8-C. • Poor Condition = 28 (6%) • Fair Condition = 142 (31%) • Good Condition = 288 (63%)


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This data indicates that a vast majority of the trees in the Cambie Heritage Boulevard are in good condition. It is understood that the City of Vancouver has performed regular maintenance on these trees, including the removal of those that may have died and/or were in a hazardous condition. During the assessment, soil test holes were hand dug in the boulevard, examined by direct observation, and analyzed in relation to tree growth needs. Since the soil appeared to be predominantly native, lab testing for fertility components was not undertaken. The lab analysis that was conducted indicated many soil property deficiencies. In a majority of the test areas, based on a visual assessment, soil fertility was lacking and where an underlying layer of heavily compacted and/or hardpan impervious soil strata was present, the loose soil depth was shallow (i.e., less than 35 cm). Such soil types and stratification are not conducive for tree establishment, making it difficult to grow healthy and structurally sound trees. Tree rooting depth is generally shallow due to the site conditions and this is especially manifested in the Prunus species. Many newly planted trees are in decline, also indicative of the harsh growing environment in the boulevard. Poor soil conditions may result in inherent problems for existing trees. Both shallow soil and a relatively impervious subsoil may adversely affect the long-term viability of these trees. Although different tree species require different growing conditions (e.g., shade, partial shade, full sun; moist rich soil, arid soil; high pH, low pH, etc.), in general, all trees require good soil depth and adequate soil volume to root solidly and to develop a root system capable of efficient nutrient and water uptake. Limited resources for those growing requirements are available in the Cambie Heritage Boulevard. The impervious subsoil reduces permeability and there is strong potential for this soil to become saturated during heavy rain events. In saturated conditions, soil cohesiveness is reduced and trees may be toppled more easily. Over time, as trees become larger with more “windsail”, their susceptibility to failure may increase. Preparation of any replacement planting sites should be completed in such a way that these problems are mitigated. Adequate quality and volume of soil should be placed, positive drainage from the planting area provided, and suitable replacement species selected to suit the site conditions.


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In addition to accommodating trees, the Cambie Heritage Boulevard serves as a utility corridor with underground utilities and services located below ground. Historical and recent encroachments consisting of areas where soils appear to have been excavated or disturbed were noted during the assessment. Future disturbances may occur during infrastructure and utility maintenance. Arbortech findings indicate that Vancouver Board of Parks and Recreation staff are confronted with continuing maintenance challenges with respect to the boulevard trees, which are more prone to decline and failure than are trees located in other parts of Vancouver.

8.4 Species Profiles

Overall, in the RAV corridor, there are 11 genera with moderate to high populations and 18 genera with small populations (see Appendix 8-A). The predominant genera and species and rare species are described below, detailing some basic characteristics such as culture, form, and mature size, their use and relative rarity in the Lower Mainland region, site populations, as well as other information intended for site planning consideration purposes.

8.4.1 Acer - Maple

Site Frequency: 13% Maples, broadleaf trees, are generally adaptable to a wide range of soil growing conditions, can thrive in harsh urban environments, and are common in the Lower Mainland. Locally, the maples are often affected by the foliage-eating larvae of the winter moth and by blight. No symptoms of pest problems were observed in the RAV Project area during the inventory and assessment. Maples are available in a multitude of species, varieties with unique forms, including columnar and rounded crowns, and several foliage colours. The native vine maple is a shrub form. Most of the red maple varieties in the project area are medium-sized, reaching 15 to 20 m tall and 7 to 15 m in spread at maturity. The Norway silver maples grow large at maturity, reaching 30 to 40 m in height and 20 to 25 m in spread at maturity.


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Most maple tree species have strong structure and provide dominant landscape shade tree presence. 8.4.2 Carpinus - Hornbeam

Site Frequency: 6% The hornbeam is a hardy broadleaf species, adaptable to a variety of soil conditions. The dense twiggy branch and foliage mass provides good interest through all seasons. The fastigiate species generally grows up to 15 to 20 m tall and 10 to 15 m in spread. This species is often used in street tree plantings and in landscapes because of its hardiness and is commonly found throughout our region. 8.4.3 Chamaecyparis – False Cypress

Site Frequency: 8% The false cypress is a small-growing coniferous tree that generally prefers well drained but moist soil. Chamaecyparis lawsoniana is native to coastal Oregon and has a myriad of varieties with different foliage colour, most being of a compact columnar form growing to 30 m tall. This species has been devastated locally, killed in high numbers from Phytopthora root disease. Chamaecyparis nootkatensis, a species native to BC’s forests in higher elevations, is adaptable and has two forms, including the large-growing (i.e., up to 60 m tall in the wild) species and the smaller growing pendula variety. Blight and foliage insects that attack this species are common in the landscape. Chamaecyparis pisifera is a small-growing species up to 20 m in height at its largest but more commonly less than 10 m tall. Chamaecyparis lawsoniana was planted to excess in this region, but is less commonly planted now. Chamaecyparis nootkatensis is still very commonly planted, especially the pendula variety.


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8.4.4 Cornus - Dogwood

Site Frequency: 17% The dogwoods are ornamental broadleaf trees planted mostly for their flowering traits. They generally grow up to 10 m tall, are generally shade-loving, and prefer moist and cool conditions. The native C. nuttallii is a short-lived species, affected by anthracnose foliar diseases. Cornus florida and C. kousa varieties are more adaptable to full sun and a range of soil conditions. The latter are being planted in greater numbers and are valuable trees in the landscape. 8.4.5 Crataegus - Hawthorn

Site Frequency: 4% The hawthorns used in landscapes in the Lower Mainland are ornamental and grow to 7 m tall and 8 m spread. Some varieties are affected by anthracnose foliar disease, however many of the varieties that are now being planted are disease-resistant. The species is not rare in the Lower Mainland and is planted more commonly in a street tree environment than in landscapes. 8.4.6 Fagus - Beech

Site Frequency: 5% The beech is a hardy and strong tree adaptable to wide-ranging soil conditions. The foliage is dense and casts a heavy shadow. Fagus sylvatica is very large-growing, reaching heights of 40 m and a spread of 30 m quite easily. Varieties range from shrub and small columnar forms such as dawyckii, growing compact in spread but tall (i.e., up to 20 m) and asplenifolia, growing to 10 m tall. All are considered valuable landscape trees in our area, though they are common.


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8.4.7 Magnolia

Site Frequency: 3% The magnolias are small trees, ranging in height based on variety but generally not growing more than 10 m tall and 7 m spread. Most species require shady sites with deep moist loam soil to thrive. Their ornamental value is high considering their dominant showy spring-flowering. Although M. kobus is thought to be the hardiest and most adaptable species, during the inventory and assessment, the specimens growing on the Cambie Heritage Boulevard were consistently found to be in severe decline. 8.4.8 Picea - Spruce

Site Frequency: 4% Spruce is a variable evergreen, ranging in size from the native species, which grows up to 60 m tall, to the introduced species, which grows up to 20 m tall with a narrow spread. These trees generally prefer moist soils, however P. omorika is more tolerant of dry conditions. Certain spruce species are used extensively in formal landscapes as they are one of only a few small-growing evergreen trees available and hardy to the Lower Mainland. 8.4.9 Prunus serrulata – Flowering Cherry

Site Frequency: 13% Flowering cherry trees are ornamental varieties planted for their variable form and flowering characteristics. Locally, the common species have been damaged by bacterial blight, a disease that causes foliar dieback and creates wounds where decay colonizes the main branches and trunks. The trees are generally small in size, growing up to 10 m in height and 20 m in spread at maturity. This species, which is relatively short-lived, is known to be shallow-rooted and invasive in formal landscapes.


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8.4.10 Quercus - Oak

Site Frequency: 7% The oaks primarily consist of large- and medium-growing species. Quercus palustris is the most common species in the project area, and is a hardy tree that is planted often in local landscapes. It is reported to be intolerant of high soil pH, although in any case, local soils rarely have elevated pH. The growth form of this species is strong and its landscape value for shade is excellent. Quercus palustris grows up to 25 m tall with a 10 to 15 m spread. It often develops double leaders in the upper crown creating potential weakness in its structure. However, these trees have strong wood and are not prone to failure, and well-timed pruning can be used to mitigate structural defects. 8.4.11 Sequoiadendron – Giant Redwood

Site Frequency: 2% Although Sequoiandendron are not found in great numbers in the project area, this species is a dominant part of the landscape on the Cambie Heritage Boulevard. Giant redwood is very adaptable and well-suited to our climate. It is a very large-growing evergreen tree with a strong pyramidal form that can reach heights of 60 m and a spread of 18 m at maturity. The foliage grows to the base of trees if they are grown in the open, concealing trunks that are immense in diameter at the base. With the stout form, these trees are very strong structurally, and their sheer size dominates any landscape in which they are grown. Adequate space is required to accommodate these trees. 8.4.12 Ulmus glabra ‘lutescens’ – Golden Elm

Site Frequency: Isolated There are four well known golden elms located at the north end of the Cambie Heritage Boulevard, near King Edward Avenue. This species is rare in our region and around the world. It grows to medium mature size, reaching 25 m in height and spreading wide to 30 m. The yellow foliage colour makes this species unusual. Photographs and descriptions of the trees on the


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Cambie Heritage Boulevard are presented in “Trees of Vancouver” (Straley 1992).

8.5 Tree Replacement

8.5.1 Sourcing Existing Species

Arbortech sourced through four local wholesale nurseries for replacement trees of the species found along the proposed RAV corridor. A size range of 5 to 10 cm caliper for broadleaf species, and 3 to 5 m height for coniferous species were used as criteria. These are the most commonly available size ranges, although it is increasingly difficult to find larger sizes of certain shade and ornamental trees in the Lower Mainland region. General constraints on sourcing plant material are regionally restrictive, relative to our climactic region. The Lower Mainland is within the Plant Hardiness Zone 8 (Agriculture and Agri-Food Canada 2003), which extends to the north through southwestern BC and to the south along the coast of Washington and Oregon. Trees that are nursery grown in this plant hardiness zone are well adapted to the climate, and are the best source for ensuring successful establishment. Trees that are nursery grown outside of Zone 8 may have less potential for success. Although transferring trees across the international border can be restrictive due to various quarantine requirements, US nurseries may be able to supply species that are unavailable in the Lower Mainland. Some species may not be available due to horticulture concerns or lack of demand. Through years of experience by landscape professionals, much has been learned about tree species, including their strengths, weaknesses and diseases (see SECTION 8.4). The results of the sourcing exercise are presented in Appendix 8-B. 8.5.2 Substitute Species

Some tree species are no longer grown commercially due to poor adaptability or performance in the Lower Mainland, disease problems or other reasons. Also, based on experience in an urban forest program, some species may


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become less desirable due to management challenges such as hazard risk management or disease problems. In either case, a palette of replacement tree species should be developed based on availability of suitably sized plant material and a consideration of growing conditions at the planting site, space availability, aesthetic goals and management criteria. This palette will be a cooperative effort between RAV Project representatives and the respective city or jurisdictional authority, and will form the basis of detailed design for planting replacement trees on the project. A process for determining the palette should include consultation with the Owners and appropriate jurisdictions, such as the Vancouver Board of Parks and Recreation for Cambie Street, City of Richmond for No. 3 Road, and VIAA for the airport lands. 8.5.3 Site Preparation

Regardless of species selection, all planting sites should be prepared properly taking into account the future needs of the trees. Adequate and high quality soil of the proper consistency should be specified. Drainage must be implemented in micro-sites where water may otherwise accumulate in the soil. The selected finished treatments of the landscape where trees are to be planted should consider their cultural needs. It would be optimal to specify planting beds with low maintenance groundcover plants rather than lawn for the area within the extent of a tree’s mature dripline. Irrigation is not needed, except for a temporary interim establishment period ranging from one to three years, depending upon the size of planted trees. If the finished landscape will utilize irrigation, the frequency and coverage must be designed carefully so as to avoid negative impacts to trees. Irrigated landscapes promote shallow rooting, causing concern for wounding by mowers as well as making the tree less tolerant of drought periods when irrigation may be restricted. Proper nursery practices, high plant quality selection, careful handling and proper planting methods must be employed to ensure maximum success.


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8.5.4 Options for Securing Replacement Trees

In cases where desired species are not available at wholesale nurseries, it would not be prudent to source them from outside of the region. With enough lead time, it may be possible to secure plants that may be in production but not yet of marketable size, and or a nursery could be commissioned to grow trees specifically for the project.

8.6 Tree Transplant Guidelines

The proposed alignment contains some valuable existing tree resources that, if they are located within a construction area, may be suitable or worthy of transplanting. Transplanting trees from areas where they would otherwise be removed is appropriate if it is practical and success is probable. There are, however, relatively few instances where this option can be utilized. A summary of the guidelines required in developing a strategy for tree relocation is provided below.

8.6.1 General Guidelines

In general, trees that have matured in a landscape environment have limited opportunities for transplant success. Prospects are limited based on the size of the tree and the root system, and the adaptability of the species. The unrestrained growing conditions in a landscape environment, where roots are able to extend far from the tree, are very different from nursery conditions where trees are cultured and root-pruned repeatedly to promote the development of a condensed root system. These controlled growing environments create trees that have high probability for establishment and success once planted into the landscape, with lighter and smaller root balls for ease of transport and placement. Where existing trees are located in a construction envelope and are deemed particularly valuable, it may be worthwhile to considering transplanting them. The main factors involved in selecting large trees to transplant on a landscape site include:


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• Size: The size and weight of the tree and root ball will dictate the size of machinery required to move the tree;

• Species: Some species are more adaptable than others to the root loss that can occur when a tree is transplanted;

• Condition: Even though a species may be adaptable, its present health or structural condition may restrict its viability; and

• Time: The length of time that the tree has been planted is very important. Trees that have been in the ground for less than five years have much greater potential for successful transplanting than do established trees.

Transplant success may be enhanced through advanced pre-treatments to culture and prepare the tree, similar to practices carried out in a nursery. Various transplant methods are available and vary in cost according to the scope of work and type of machinery required for each. These methods include digging and transporting the smallest trees by hand, using a tractor-mounted tree spade for small trees or a truck-mounted tree spade for medium-sized trees, or hand digging and using a crane for medium and large trees. The use of heavy equipment and cranes is costly and is only warranted for trees of high value. Site constraints such as accessibility for digging equipment, cranes and trucks, as well as underground conflicts with utilities and services must be taken into account when deciding if a tree can be transplanted. It would be most optimal to transplant trees directly into a new permanent location. Trees can be stored at a nursery facility for an interim period until the new planting site is prepared, however their viability may be reduced as a result. The decision to transplant trees should be made as a last resort, and minimized as much as possible. When trees are transplanted from landscaped environments, there are many variables that can affect the potential for success. There is a risk that money spent on such efforts will not yield intended results.


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8.6.2 Site-Specific Guidelines

During the arboricultural survey, the above issues were considered and a preliminary assessment for transplant viability was completed. Generally, broadleaf trees smaller than 20 cm diameter and coniferous trees less than 6 m tall can be fairly considered for transplant. Investigations by a qualified tree-moving contractor into the condition of the tree, site-specific constraints and other relevant issues should be undertaken to determine actual viability before specifications for such work are developed. Several potential candidates for transplant review were identified during this assessment and are described below. Trees should be left intact and protected where possible, but if they are located within the construction footprint of the alignment, the stations, or related infrastructure, then transplanting them may be an option. Advanced root-pruning and other pre-treatments would be appropriate for all trees selected for transplant. 8.6.2.1 Richmond

The Richmond - No. 3 Road section of the RAV corridor contains many trees that are good candidates for transplanting. Most trees in the No. 3 Road median were planted approximately three years ago and are in good health and form. 8.6.2.2 Vancouver International Airport

The airport area contains two tree resource types that may be suitable for transplant. The maples located in the frontage of the parkade may be suitable for transplanting due to their young age and recent planting. If the alignment crosses through the “natural” planted landscape areas close to the terminal, many of these trees may also be viable for transplant. 8.6.2.3 Cambie Street

The Cambie Heritage Boulevard and side boulevards offer very limited transplant opportunities, primarily due to the relatively poor soil conditions in this portion of the project area. Due to shallow infertile soils, rooting density is reduced, causing root growth to extend further from the trees. Since it


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would be necessary to remove a significantly large soil ball to facilitate establishment of each tree in a new site, the potential for transplant success is limited. Heavy equipment would be required to move the large soil/root ball associated with all trees, regardless of size, removed from this environment. In addition, it would be very difficult to keep a soil ball intact during the transplant. During the inventory and assessment, the small, newly planted trees in the Cambie Heritage Boulevard were consistently found to be dead or dying. These trees are not suitable for transplanting. The presence of major underground infrastructure reduces the opportunity to use digging equipment in certain areas of the boulevard. Although a few individual trees may be suitable for transplant, the trees growing along this part of the RAV corridor are not good candidates for transplant. Along Cambie Street, tree removal and replacement is a more realistic treatment option for areas where the alignment conflicts with tree locations.

8.7 Tree Preservation and Protection Planning

8.7.1 Site Planning and Design Phase

During the planning and design phases of the RAV Project, the development of a tree preservation and protection plan would be appropriate. A general rule of thumb is to assume that if a tree cannot be protected to its dripline extents, substantial impacts will occur. These impacts may take place underground due to loss of roots, or aerially due to pruning of the crowns. The scope of impact can be predicted and mitigation options can be determined during the planning process. Some deviation from this guideline may be acceptable for trees in certain growing environments, such as enlarged or reduced protection zones. These will be determined subject to many factors, such as the tree species involved and specific site and soil conditions. Root loss can occur during excavation or due to placement of fill over the root zones. Tree roots take in nutrients, oxygen and water to grow, emitting carbon dioxide as waste product. If fill is placed over soil containing tree roots, the resultant soil stratification can interrupt the normal gas exchange


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processes. Under such conditions, carbon dioxide cannot be purged by percolation of rainwater and oxygen cannot be drawn in as readily as before. If the aerobic activity in the soil is substantially reduced, tree decline is likely and root disease is inevitable. Trees located in the footprint of a construction area will generally need to be removed due to direct impacts. A replacement strategy should be prepared for these trees. An entire tree or substantial roots of a tree may be lost due to excavation or similar direct construction impacts. Indirect impacts to trees associated with the RAV Project may include: • depletion of soil water near excavations or where an elevated guideway

may intercept rainwater – the trees may experience drought stress and declining health;

• soil compaction caused by vehicle and equipment access – the percolation and aerobic activity of the soil may be reduced, resulting in declining health and development of disease;

• aerial encroachment of new structures into or above the crowns of trees – the trees may require excessive pruning, resulting in asymmetrical form or induced decline;

• relocation of various infrastructure, such as moving existing underground services to accommodate RAV facilities – the location and extent of trenches required may not be known until late in the project and may result in root loss to proposed retention trees; and,

• installation of new infrastructure such as storm drain connections, venting shafts, electrical connections, etc. – may result in root loss.

8.7.2 Construction Phase

To mitigate the potential for construction impacts to retained trees, trees will need to be protected from damage. In terms of required tree protection measures, the various jurisdictions may have bylaws or policies that apply, including the following: • in Vancouver, Private Property Tree Bylaw # 7347 or Vancouver Board of

Parks and Recreation policies;


8-21 December 2004

• in Richmond, Planning Department policy and/or Parks Department policies; and,

• at Vancouver International Airport, VIAA Environment Department policies.

Using best management practices, some minimum standards for tree protection can be implemented. These practices should meet or exceed requirements in each jurisdiction. After the tree preservation design is complete, the location of temporary tree protection fences can be specified. To ensure success in preserving the specified trees, adherence to access restrictions will apply. Potential for damage to roots and for negative impacts on soil hydrology, drainage and cultural conditions can be managed with some treatment. Direct mechanical damage cannot be repaired. Potential mitigation measures for tree protection include: • Temporary tree protection fencing must be installed before any land

clearing, demolition or construction work commences. All fences must be sturdily built of suitable materials. Signs stating “TREE PROTECTION AREA – NO ENTRY” must be affixed every 10 m or other suitable frequency. Fences must be maintained in good order until the new infrastructure and buildings for the site are substantially complete.

• Tree protection fencing must be inspected and approved by the project arborist prior to work commencing and must be monitored throughout construction. Monitoring frequency will be determined based on the level of construction activity in the vicinity of the retained trees.

• If encroachment into the tree protection zone is required for any reason, it should be authorized in advance by the project arborist. Special measures may need to be implemented to allow access, and some activities will not be allowed.

• Installation of underground services and drainage (especially pipes and swales), and finished grading must not cause any grade changes (i.e., any excavation or fill) within the tree protection zones, or grade changes of surrounding lands that would result in stormwater accumulation or depletion within the tree protection zone.

• Activities within and access to the tree protection zones must be restricted so that no one may cause or allow the deposition of any soil, spoil, aggregate, construction supplies, construction materials and/or waste materials. Vehicles and equipment must not pass within these


December 2004 8-22

zones. The retained trees must not be used to affix signs, lights, cables or any other devices. Pruning, root-pruning or any other treatment to the retained trees must be performed by a qualified arborist or under the direction of the project arborist.

• Retained trees should be re-inspected by the project arborist prior to the occupation of the site.

8.8 Conclusions

The arboricultural survey of the existing tree resource along the RAV Project corridor has identified over 29 genera and 69 species of trees, ranging in age class from very young to mature. The majority of the trees have been assessed to be in “fair” to “good” condition, and most are suitable retention trees. The total inventory of trees is 1,259 trees, broken down for each section of the corridor as follows:

• Richmond – No. 3 Road medians – 229; • Vancouver International Airport - 110, plus “naturalized” stands of planted

trees; • Vancouver – Cambie Street Side Boulevards – 462; and • Vancouver – Cambie Heritage Boulevard – 458.

The growing sites differ in each section of the corridor in terms of quality and production capabilities for sustaining trees to maturity, and/or the potential for establishment of new replacement trees. The Richmond and airport sites are generally productive and of good quality, while the Cambie Heritage Boulevard and side boulevards are low production sites with harsh growing environments for trees. Some challenges for sustaining trees in the Cambie Heritage Boulevard are identified, with poor quality and shallow depth of the soil resource being an important deficiency to be considered. Contemplated design concepts for the RAV Project will have varying consequences with regard to tree retention. The cut-and-cover below-grade, at-grade and elevated options within the vegetated median would all require the removal of trees located within that portion of the alignment, due to direct conflicts with the construction footprint. Portions of the alignment that are to be tunneled using methods that do not involve cut-and-cover techniques will require


8-23 December 2004

very little tree removal, and in these areas, the sustainability of existing trees will not be affected. 8.9 References

Agriculture and Agri-Food Canada. 2003. CanSIS. Natural Soils Database. Climate Data. Plant Hardiness Zones. Plant Hardiness Zones of Canada 2000. http://wms1.agr.gc.ca/cgi-bin/mapplant2000?mode=browse&layer=zones&layer=cities

Straley, G.B. 1992. Trees of Vancouver – A Guide to the Common and Unusual

Trees of the City. University of British Columbia Press. Vancouver, B.C. 270 pp.

Tree Inventory Summary - Species List and QuantitiesAPPENDIX 8-A

RAV RAPID TRANSIT

APPENDIX 8-ATREE INVENTORY SUMMARY - SPECIES LIST AND QUANTITIES

FILE 03145

CODE GENUS SPECIES VAR./CULT. COMMON RMD YVR CAM BLVD CAM MED TOTALACO Abies concolor White fir 1 1ACA Acer campestre Hedge maple 1 1AC Acer circinatum Vine maple 28 3 31AG Acer griseum Paperbark maple 3 3

APG Acer platanoides Globosa Globe maple 11 11AP Acer platanoides Norway maple 4 1 5AR Acer rubrum Red maple 92 25 117AS Acer saccharinum Silver maple 1 1CB Carpinus betulus European hornbeam 37 39 1 77CD Cedrus deodara Deodar cedar 12 12

CHL Chamaecyparis lawsoniana Lawson cypress 2 9 11CHNP Chamaecyparis nootkatensis Pendula Weeping nootka cedar 6 6CHN Chamaecyparis nootkatensis Nootka cedar 55 55CHO Chamaecyparis obtusa Hinoki cypress 1 1CHP Chamaecyparis pisifera Sawara cypress 31 31CF Cornus florida Flowering dogwood 77 77CK Cornus kousa Chinese kousa dogwood 56 1 57CN Cornus nuttallii Eddies Eddies white wonder dogwood 65 10 75CM Crataegus monogyna Stricta Singleseed hawthorne 2 2CP Crataegus phaenopyrum Washington thorn 1 1

CRL Crataegus x lavallei Flowering hawthorn 47 47FSA Fagus sylvatica Aspleniifolia Fernleaf beech 10 10FSY Fagus sylvatica Aurea Golden beech 4 4FSD Fagus sylvatica Dawyckii Dawyck beech 2 2FSF Fagus sylvatica Fastigiata Fastigiate beech 8 8FSO Fagus sylvatica Obelesk Obelisk beech 4 4FSP Fagus sylvatica Pink-nightie Pink beech 2 2FSR Fagus sylvatica Rotundifolia Roundleaf beech 1 2 3FS Fagus sylvatica Eurpoean beech 1 11 12GT Gleditsia triacanthos In. Shademaster Shademaster honeylocust 1 1 2GS Gleditsia triacanthos In. Sunburst Sunburst honeylocust 2 2LD Larix decidua European larch 2 2LS Liquidambar styraciflua Worpleston Sweet gum 1 7 8LT Liriodendron tulipifera Tuliptree 2 1 3MK Magnolia kobus Kobus magnolia 3 22 25M Magnolia sp. Magnolia 9 9

MGA Magnolia Galaxy Galaxy magnolia 1 1MBM Magnolia Moonbeam Moonbeam magnolia 4 4MR Malus Redbud Redbud crabapple 21 21MG Metasequoia glybtostroboides Dawn redwood 2 2 4PH Philadelphus coronarius Mockorange 1 1PP Picea pungens Colorado spruce 2 2PO Picea omorika Serbian spruce 17 33 50PN Pinus nigra Austrian pine 2 2

PPO Pinus ponderosa Ponderosa pine 4 4PS Pinus sylvestris Scots pine 4 4PA Populus alba White poplar 1 1

PCP Prunus cerasifera Pissardii Purple-leaved plum 4 37 41PK Prunus serrulata Kwanzan et al Japanese flowering cherry 3 31 88 122PM Pseudotsuga menziesii Douglas-fir 36 1 37PC Pyrus calleryana Callery pear 9 21 30QA Quercus alba White oak 9 9QP Quercus palustris Pin oak 56 17 1 74

QRF Quercus robur Fastigiata Fastigiate english oak 3 3QRO Quercus robur English oak 1 1QR Quercus rubra Red oak 8 8SG Sequoiadendron giganteum Giant sequoia 23 23SJA Sophora japonica Japanese pagoda tree 1 1SAR Sorbus aria Whitebeam mountainash 13 13SA Sorbus aucuparia Mountainash 18 18SP Stewartia pseudocamellia Japanese stewartia 6 6SJ Styrax japonicus Snowbell 4 6 10TD Taxodium distichum Bald cypress 1 1TO Thuja occidentalis White cedar 22 22TPZ Thuja plicata Zebrina Zebrina cedar 6 6TP Thuja plicata Western redcedar 5 5

TPL Tilia platyphyllos Laciniata Laceleaf linden 2 1 3UA Ulmus americana American elm 9 9UG Ulmus glabra Scotch elm 5 5

229 110 462 458 1259

ARBORTECH CONSULTING LTD OCTOBER 27 2003

Karen Kroeker

Replacement Tree - Unit Cost SummaryAPPENDIX 8-B

RAV RAPID TRANSIT

APPENDIX 8-BREPLACEMENT TREE - UNIT COST SUMMARY

FILE 03145

CODE GENUS SPECIES VAR./CULT. COMMON Size range Price Range Average Unit CostACO Abies concolor White fir n/aACA Acer campestre Hedge maple 5 to 10 cm 135 to 400 268AC Acer circinatum Vine maple 3 m 75 to 135 105AG Acer griseum Paperbark maple 5 to 6 cm 195 to 235 215

APG Acer platanoides Globosa Globe maple 5 to 10 cm 135 to 400 268AP Acer platanoides Norway maple 5 to 10 cm 135 to 400 268AR Acer rubrum Red maple 5 to 10 cm 135 to 400 268AS Acer saccharinum Silver maple 6 cm 145 145CB Carpinus betulus European hornbeam 5 to 10 cm 150 to 516 333CD Cedrus deodara Deodar cedar 3 to 5 m 143 to 567 355

CHL Chamaecyparis lawsoniana Lawson cypress n/aCHNP Chamaecyparis nootkatensis Pendula Weeping nootka cedar 3 to 3.5 m 148 to 206 177CHN Chamaecyparis nootkatensis Nootka cedar n/aCHO Chamaecyparis obtusa Hinoki cypress #15 46 46CHP Chamaecyparis pisifera Sawara cypress n/aCF Cornus florida Flowering dogwood 5 to 6 cm 174 to 206 190CK Cornus kousa Chinese kousa dogwood 5 to 8 cm 169 to 287 228CN Cornus nuttallii Eddies Eddies white wonder dogwood 5 to 6 cm 174 to 206 190CM Crataegus monogyna Stricta Singleseed hawthorne n/aCP Crataegus phaenopyrum Washington thorn n/a

CRL Crataegus x lavallei Flowering hawthorn 5 to 10 cm 149 to 516 332FSA Fagus sylvatica Aspleniifolia Fernleaf beech 5 to 10 cm 149 to 516 332FSY Fagus sylvatica Aurea Golden beech 5 to 10 cm 149 to 516 332FSD Fagus sylvatica Dawyckii Dawyck beech 5 to 10 cm 149 to 516 332FSF Fagus sylvatica Fastigiata Fastigiate beech 5 to 10 cm 149 to 516 332FSO Fagus sylvatica Obelesk Obelisk beech 5 to 10 cm 149 to 516 332FSP Fagus sylvatica Pink-nightie Pink beech 5 to 10 cm 149 to 516 332FSR Fagus sylvatica Rotundifolia Roundleaf beech 5 to 10 cm 149 to 516 332FS Fagus sylvatica Eurpoean beech 5 to 10 cm 149 to 516 332GT Gleditsia triacanthos In. Shademaster Shademaster honeylocust n/aGS Gleditsia triacanthos In. Sunburst Sunburst honeylocust 5 to 10 cm 136 to 402 269LD Larix decidua European larch 3 m 143 143LS Liquidambar styraciflua Worpleston Sweet gum 5 to 10 cm 136 to 402 269LT Liriodendron tulipifera Tuliptree 5 to 10 cm 136 to 402 269MK Magnolia kobus Kobus magnolia 5 to 10 cm 149 to 516 332M Magnolia sp. Magnolia 5 to 10 cm 149 to 516 332

MGA Magnolia Galaxy Galaxy magnolia 5 to 10 cm 149 to 516 332MBM Magnolia Moonbeam Moonbeam magnolia 5 to 10 cm 149 to 516 332MR Malus Redbud Redbud crabapple n/aMG Metasequoia glybtostroboides Dawn redwood 5 to 10 cm 136 to 402 269PH Philadelphus coronarius Mockorange n/aPP Picea pungens Colorado spruce 3 m 164 164PO Picea omorika Serbian spruce # 15 46 46PN Pinus nigra Austrian pine 3 to 5 m 153 to 567 360

PPO Pinus ponderosa Ponderosa pine n/aPS Pinus sylvestris Scots pine 3 to 5 m 143 to 567 355PA Populus alba White poplar n/a

PCP Prunus cerasifera Pissardii Purple-leaved plum 5 to 10 cm 136 to 402 269PK Prunus serrulata Kwanzan Kwanzan cherry 5 to 10 cm 136 to 402 269

PSA Prunus subhirtella Autumnalis Higan cherry 5 to 10 cm 136 to 402 269PM Pseudotsuga menziesii Douglas-fir 3 to 5 m 107 to 454 280PC Pyrus calleryana Callery pear 4 cm 108 108QA Quercus alba White oak n/aQP Quercus palustris Pin oak 5 to 10 cm 136 to 402 269

QRF Quercus robur Fastigiata Fastigiate english oak 5 to 10 cm 136 to 402 269QRO Quercus robur English oak 5 to 10 cm 136 to 402 269QR Quercus rubra Red oak 5 to 10 cm 136 to 402 269SG Sequoiadendron giganteum Giant sequoia 3 to 5 m 143 to 567 355SJA Sophora japonica Japanese pagoda tree n/aSAR Sorbus aria Whitebeam mountainash 8 cm 165 165SA Sorbus aucuparia Mountainash 5 to 10 cm 136 to 402 269SP Stewartia pseudocamellia Japanese stewartia 5 to 6 cm 195 to 235 215SJ Styrax japonicus Snowbell 5 to 6 cm 149 to 190 170TD Taxodium distichum Bald cypress n/aTO Thuja occidentalis White cedar 3 m 75 75TPZ Thuja plicata Zebrina Zebrina cedar 3 to 5 m 75 to 516 296TP Thuja plicata Western redcedar 3 to 5 m 75 to 516 296

TPL Tilia platyphyllos Laciniata Laceleaf linden n/aUA Ulmus americana American elm n/aUG Ulmus glabra Scotch elm n/a

ARBORTECH CONSULTING LTD OCTOBER 27 2003

Karen Kroeker

Detailed Tree Inventory - Cambie Street BoulevardAPPENDIX 8-C


1 December 2004

Appendix 8C Detailed Tree Inventory - Cambie Street Boulevard Inventory Headings TREE # denotes tag number, a blue plastic numbered disc affixed to the north side of the trunk of each tree. DBH denotes trunk diameter, measured in cm at a height of 1.4 m above grade. CODE denotes the genus and species code developed by Arbortech for internal use only. GENUS SPECIES VAR/CULT denotes the variety or cultivar, if known. SPREAD denotes the longest reaches of branches measured in meters and as a radius. HEIGHT denotes the height of the tree as estimated or measured in the field by the arborist. COND denotes the condition as deemed by the project arborist.

“Good” = tree with no observed defect or health concerns “Fair” = tree has minor structural defect or health problem “Poor” = tree is dead, dying or has a serious structural or health problem

DEFECTS NOTED denotes a list of defects observed. VAN SERIAL # denotes the serial number of the subject tree as listed in the Vancouver Board of Parks and Recreation Street Tree Listing [95% confidence level for accuracy in this cross reference]

RAV RAPID TRANSIT

APPENDIX 8-CDETAILED TREE INVENTORY - CAMBIE STREET BOULEVARD

FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #1 53 sja Sophora Japonica 7 8 Fair 177,6622 31 chn Chamaecyparis nootkatensis 3 8 Good 142,4153 m chn Chamaecyparis nootkatensis 3 7 Good 142,4144 27 chn Chamaecyparis nootkatensis 3 8 Good 142,4135 28 pk Prunus serrulata Kwanzan 5 5 Poor Decay. 142,4126 26 pk Prunus serrulata Kwanzan 6 5 Fair 142,4117 48 pk Prunus serrulata Kwanzan 5 5 Fair 142,4108 34 pk Prunus serrulata Kwanzan 5 4 Fair 142,4099 30 chn Chamaecyparis nootkatensis 3.5 8 Good 195,213

10 30 chn Chamaecyparis nootkatensis 3.5 8 Good 142,40711 4 crl Crataegus x lavellei 1 3 Fair 176,87712 27 qa Quercus alba 3 10 Good 176,87613 9 fs Fagus sylvatica 1 5 Good 195,21214 17 chn Chamaecyparis nootkatensis 2 5 Good 142,40615 14 chn Chamaecyparis nootkatensis 2 5 Good 142,40516 15 chn Chamaecyparis nootkatensis 2 5 Good 142,40417 7 mk Magnolia kobus 1 4 Poor Dying. 176,87518 9 pk Prunus serrulata Kwanzan 2 3 Fair 142,40319 48 pk Prunus serrulata Kwanzan 6 4 Fair 142,40220 48 pk Prunus serrulata Kwanzan 5 4 Fair 142,40121 20 sg Sequoiadendron giganteum 2 4 Good 142,40022 50 sg Sequoiadendron giganteum 2 6 Good 142,39923 20 chn Chamaecyparis nootkatensis 3 7 Good 142,39824 10 tpz Thuja plicata Zebrina 2 3 Good 142,39725 17 chn Chamaecyparis nootkatensis 3 6 Good 142,39626 6 fs Fagus sylvatica 1 3 Good 176,87427 20 pk Prunus serrulata Kwanzan 4 3 Fair 142,39528 18 pk Prunus serrulata Kwanzan 3 3 Fair 142,39029 27 pk Prunus serrulata Kwanzan 4 3 Fair 142,38930 28 chn Chamaecyparis nootkatensis 3 8 Good 142,39231 8 chn Chamaecyparis nootkatensis 2 4 Good 142,38832 11 chn Chamaecyparis nootkatensis 2 4 Fair 142,38633 5 mk Magnolia kobus 1 3 Poor Dying. 176,87334 25 qa Quercus alba 4 10 Good35 10 pk Prunus serrulata Kwanzan 1 3 Good 142,38436 15 pk Prunus serrulata Kwanzan 3 4 Fair 142,38537 3 chn Chamaecyparis nootkatensis 1 3 Good 176,87138 4 chn Chamaecyparis nootkatensis 1 3 Good 176,87039 32 pk Prunus serrulata Kwanzan 5 3 Fair40 40 pk Prunus serrulata Kwanzan 5 3 Fair 142,38341 70 pk Prunus serrulata Kwanzan 6 3 Fair 142,38242 4 chnp Chamaecyparis nootkatensis pendula 1 3 Fair 176,84143 4 chnp Chamaecyparis nootkatensis pendula 1 3 Fair 176,84044 m chn Chamaecyparis nootkatensis 3 7 Fair 142,38145 5 fs Fagus sylvatica 2 5 Good 176,86946 3 mbm Magnolia Moonbeam 1 2 Poor Dying. 176,83947 50 pk Prunus serrulata Kwanzan 5 3 Fair 142,38048 38 pk Prunus serrulata Kwanzan 5 3 Fair 142,37949 41 pk Prunus serrulata Kwanzan 5 3 Fair 142,37850 6 crl Crataegus x lavellei 1 3 Fair 176,83751 4 crl Crataegus x lavellei 1 3 Poor Dying. 176,83652 5 crl Crataegus x lavellei 1 3 Good 176,83553 21 sg Sequoiadendron giganteum 1 4 Good 176,83854 4 crl Crataegus x lavellei 1 3 Fair 176,83455 4 crl Crataegus x lavellei 1 3 Poor Dying. 176,83356 5 crl Crataegus x lavellei 1 4 Good 176,832

ARBORTECH CONSULTING LTD 1 OCTOBER 27 2003

Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #57 27 pk Prunus serrulata Kwanzan 4 3 Poor Dieback 142,37658 48 pk Prunus serrulata Kwanzan 4 3 Fair 142,37759 35 pk Prunus serrulata Kwanzan 4 3 Fair 142,37560 28 chn Chamaecyparis nootkatensis 3 9 Good 142,37461 26 chn Chamaecyparis nootkatensis 3 9 Good 142,37362 28 chn Chamaecyparis nootkatensis 3 9 Good 142,37263 60 pk Prunus serrulata Kwanzan 5 4 Fair 142,37164 60 pk Prunus serrulata Kwanzan 5 4 Fair 142,37065 2 mk Magnolia kobus 1 2 Poor Dying.66 32 pk Prunus serrulata Kwanzan 5 4 Fair 142,36967 26 pk Prunus serrulata Kwanzan 4 4 Fair 142,36868 14 sg Sequoiadendron giganteum 2 4 Good 176,83069 18 chn Chamaecyparis nootkatensis 3 6 Good 142,36770 3 mk Magnolia kobus 1 3 Poor Dying.71 27 chn Chamaecyparis nootkatensis 3 7 Good 142,36672 4 crl Crataegus x lavellei 1 4 Fair 176,82873 4 crl Crataegus x lavellei 1 3 Fair 176,93474 4 crl Crataegus x lavellei 1 3 Fair 176,93575 m tpz Thuja plicata Zebrina 3 5 Good 142,36576 31 pk Prunus serrulata Kwanzan 4 3 Fair 142,36477 35 pk Prunus serrulata Kwanzan 4 3 Fair 142,36378 27 pk Prunus serrulata Kwanzan 4 3 Fair 142,36279 14 sg Sequoiadendron giganteum 1 4 Good 176,93080 5 crl Crataegus x lavellei 1 3 Good 176,93181 4 crl Crataegus x lavellei 1 3 Fair 176,93282 4 crl Crataegus x lavellei 1 3 Fair 176,93383 6 crl Crataegus x lavellei 1 3 Fair 176,81384 6 crl Crataegus x lavellei 1 3 Fair 176,81285 6 crl Crataegus x lavellei 1 3 Fair 176,81186 28 qa Quercus alba 5 10 Fair 166,50987 8 fs Fagus sylvatica 1 5 Good 176,92988 28 qa Quercus alba 5 10 Fair 195,21689 7 mk Magnolia kobus 1 3 Poor Dying. 176,81090 m tpz Thuja plicata Zebrina 2 4 Good 142,36191 15 tpz Thuja plicata Zebrina 3 5 Good 142,36092 5 crl Crataegus x lavellei 2 3 Good 176,80993 4 crl Crataegus x lavellei 2 3 Good 176,80894 28 qa Quercus alba 4 12 Good 195,21595 5 crl Crataegus x lavellei 1 3 Good 176,80796 7 fs Fagus sylvatica 2 5 Fair 176,80697 5 mbm Magnolia Moonbeam 1 2 Poor Dying. 176,80598 40 pk Prunus serrulata Kwanzan 5 3 Fair 153,43499 40 pk Prunus serrulata Kwanzan 5 3 Fair 153,433

100 50 pk Prunus serrulata Kwanzan 5 3 Fair 153,432101 7 fs Fagus sylvatica 1 4 Good 176,804102 7 mk Magnolia kobus 1 3 Poor Dying. 176,803103 17 chn Chamaecyparis nootkatensis 3 7 Good 176,802104 20 chn Chamaecyparis nootkatensis 3 7 Good 195,219105 24 chn Chamaecyparis nootkatensis 3 7 Good 195,217106 7 chn Chamaecyparis nootkatensis 1 3 Good107 25 chn Chamaecyparis nootkatensis 3 6 Good 195,218108 7 crl Crataegus x lavellei 1 4 Good 176,801109 3 crl Crataegus x lavellei 1 4 Good 176,800110 7 crl Crataegus x lavellei 1 4 Good 176,799111 7 fsa Fagus sylvatica Aspleniifolia 2 3 Good 176,769112 25 tpz Thuja plicata Zebrina 4 8 Good 142,356


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #113 m chn Chamaecyparis nootkatensis 5 8 Good 142,354114 27 chn Chamaecyparis nootkatensis 4 10 Good 142,353115 8 crl Crataegus x lavellei 1 3 Good 176,768116 7 crl Crataegus x lavellei 1 3 Fair 176,767117 8 crl Crataegus x lavellei 1 3 Good 176,766118 7 mbm Magnolia Moonbeam 1 3 Poor Dying. 176,765119 39 pk Prunus serrulata Kwanzan 6 4 Good 142,359120 27 pk Prunus serrulata Kwanzan 4 3 Fair Dieback. 142,358121 27 pk Prunus serrulata Kwanzan 4 4 Good 142,357122 3 chn Chamaecyparis nootkatensis 1 5 Good 176,764123 2 chn Chamaecyparis nootkatensis 2 5 Good 176,763124 43 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 64,516125 8 mga Magnolia Galaxy 1 4 Poor Dying. 176,762126 17 chn Chamaecyparis nootkatensis 4 7 Good127 20 chn Chamaecyparis nootkatensis 3 7 Good 142,343128 22 chn Chamaecyparis nootkatensis 4 7 Good 142,345129 5 crl Crataegus x lavellei 1 3 Good 176,760130 4 crl Crataegus x lavellei 1 3 Good 176,759131 6 fsa Fagus sylvatica Aspleniifolia 2 4 Good132 18 chn Chamaecyparis nootkatensis 2 5 Good 176,755133 5 crl Crataegus x lavellei 1 3 Good 176,757134 7 crl Crataegus x lavellei 1 3 Good 176,756135 19 chn Chamaecyparis nootkatensis 2 4 Good 176,754136 24 qa Quercus alba 3 5 Good137 7 chn Chamaecyparis nootkatensis 1 3 Good138 7 chn Chamaecyparis nootkatensis 1 3 Good139 8 mk Magnolia kobus 2 3 Fair Dieback. 176,730140 19 cho Chamaecyparis obtusa 2 7 Good 142,340141 16 chn Chamaecyparis nootkatensis 2 6 Good 142,337142 23 chn Chamaecyparis nootkatensis 2 7 Good 142,339143 5 crl Crataegus x lavellei 1 3 Good 176,729144 3 crl Crataegus x lavellei 1 3 Good 176,728145 5 crl Crataegus x lavellei 2 3 Good 176,727146 23 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,332147 33 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,333148 28 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,334149 26 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,335150 51 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,336151 50 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,328152 60 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 166,692153 44 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,329154 65 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 131,995155 8 fsa Fagus sylvatica Aspleniifolia 2 4 Good 195,295156 45 pk Prunus serrulata Kwanzan 5 3 Fair Dieback. 142,327157 26 chn Chamaecyparis nootkatensis 3 7 Good 142,326158 19 qa Quercus alba 3 7 Good 195,294159 27 qa Quercus alba 4 8 Fair Dieback. 195,293160 19 chn Chamaecyparis nootkatensis 3 4 Good 142,325161 21 chn Chamaecyparis nootkatensis 3 4 Good 142,324162 21 chn Chamaecyparis nootkatensis 3 4 Good 142,323163 30 qa Quercus alba 4 10 Good 195,292164 40 pk Prunus serrulata Kwanzan 4 3 Good 142,321165 40 pk Prunus serrulata Kwanzan 4 3 Good 142,322166 35 chn Chamaecyparis nootkatensis 3 10 Good 142,320167 6 ck Cornus kousa 1 3 Poor Dead.168 13 mg Metasequoia glyptostroboides 2 6 Good 142,319


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #169 7 chnp Chamaecyparis nootkatensis pendula 1 3 Good 176,724170 7 chnp Chamaecyparis nootkatensis pendula 1 3 Good 176,723171 5 chnp Chamaecyparis nootkatensis pendula 1 3 Good 176,722172 50 pk Prunus serrulata Kwanzan 4 4 Good 142,316173 36 pk Prunus serrulata Kwanzan 3 3 Good 142,317174 33 pk Prunus serrulata Kwanzan 4 3 Good 195,291175 33 pk Prunus serrulata Kwanzan 3 3 Fair Dieback. 142,314176 30 pk Prunus serrulata Kwanzan 3 3 Good 142,218177 33 pk Prunus serrulata Kwanzan 4 3 Good 142,313178 5 crl Crataegus x lavellei 1 3 Good 176,721179 5 crl Crataegus x lavellei 1 3 Good 176,720180 5 crl Crataegus x lavellei 1 3 Good 176,719181 20 chn Chamaecyparis nootkatensis 2 8 Good 142,312182 7 mbm Magnolia Moonbeam 1 3 Good 176,718183 10 mg Metasequoia glyptostroboides 1 3 Good 142,311184 23 fso Fagus sylvatica Obelesk 3 10 Good 142,310185 4 chn Chamaecyparis nootkatensis 1 3 Good 176,717186 3 chn Chamaecyparis nootkatensis 1 3 Good 176,716187 7 fso Fagus sylvatica Obelesk 1 4 Good 176,705188 39 pk Prunus serrulata Kwanzan 4 4 Good 142,307189 50 pk Prunus serrulata Kwanzan 4 4 Good 142,308190 55 pk Prunus serrulata Kwanzan 5 3 Good 142,309191 50 pk Prunus serrulata Kwanzan 5 4 Good 142,306192 6 fso Fagus sylvatica Obelesk 1 3 Good 176,704193 23 chnp Chamaecyparis nootkatensis pendula 3 8 Good 176,703194 22 chn Chamaecyparis nootkatensis 3 7 Good 142,304195 4 chn Chamaecyparis nootkatensis 1 2 Poor Dying. 142,305196 16 chn Chamaecyparis nootkatensis 2 6 Fair 195,289197 6 crl Crataegus x lavellei 1 3 Good 176,701198 5 crl Crataegus x lavellei 1 3 Good 176,700199 m chn Chamaecyparis nootkatensis 2 7 Good 195,287200 m chn Chamaecyparis nootkatensis 2 7 Good 195,285201 m chn Chamaecyparis nootkatensis 2 7 Good 142,302202 m chn Chamaecyparis nootkatensis 2 7 Good 142,301203 3 mk Magnolia kobus 1 2 Poor Dead. 195,284204 40 chl Chamaecyparis lawsoniana 2 10 Good 142,297205 5 mr Malus Redbud 1 3 Fair 171,585206 30 pk Prunus serrulata Kwanzan 5 3 Fair 195,282207 5 fso Fagus sylvatica Obelesk 1 2 Poor Dead. 172,238208 7 mr Malus Redbud 1 3 Fair 195,279209 7 po Picea omorika 1 3 Fair 171,583210 8 po Picea omorika 1 2 Fair 171,582211 7 po Picea omorika 1 3 Fair 179,245212 7 fsa Fagus sylvatica Aspleniifolia 1 2 Poor Dying. 172,237213 7 mr Malus Redbud 1 3 Fair 195,277214 5 mr Malus Redbud 1 3 Fair 195,274215 44 pk Prunus serrulata Kwanzan 6 4 Fair 142,294216 45 pk Prunus serrulata Kwanzan 3 3 Fair Dieback. 142,293217 31 pk Prunus serrulata Kwanzan 4 3 Fair 142,292218 6 mr Malus Redbud 1 2 Fair219 35 pk Prunus serrulata Kwanzan 4 3 Fair 142,290220 40 pk Prunus serrulata Kwanzan 4 3 Fair 195,275221 14 sg Sequoiadendron giganteum 2 4 Good 173,814222 45 chl Chamaecyparis lawsoniana 3 10 Good 195,272223 45 chl Chamaecyparis lawsoniana 3 10 Good 195,269224 45 chl Chamaecyparis lawsoniana 3 10 Good 142,287


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #225 7 fsa Fagus sylvatica Aspleniifolia 1 3 Fair 195,267226 37 pk Prunus serrulata Kwanzan 5 3 Fair 142,286227 28 pk Prunus serrulata Kwanzan 4 4 Fair Dieback. 142,285228 32 pk Prunus serrulata Kwanzan 4 4 Fair 195,265229 6 mr Malus Redbud 1 3 Fair 195,258230 6 mr Malus Redbud 1 3 Fair231 6 mr Malus Redbud 1 3 Fair232 50 sg Sequoiadendron giganteum 3 10 Good233 7 fsd Fagus sylvatica Dawyckii 1 3 Fair Dieback.234 30 tpz Thuja plicata Zebrina 3 5 Good235 34 pk Prunus serrulata Kwanzan 5 4 Fair Dieback. 142,281236 8 mr Malus Redbud 1 3 Good 171,700237 46 pk Prunus serrulata Kwanzan 5 4 Fair 142,284238 8 po Picea omorika 1 4 Good 195,257239 8 po Picea omorika 1 4 Good 171,581240 5 mr Malus Redbud 1 3 Fair 171,600241 50 pk Prunus serrulata Kwanzan 4 5 Fair 142,280242 5 po Picea omorika 1 3 Fair 171,598243 6 po Picea omorika 1 3 Good 171,599244 7 fs Fagus sylvatica 1 3 Good 171,597245 5 cd Cedrus deodara 1 3 Good 195,256246 m cm Crataegus monogyna Stricta 3 4 Fair 142,279247 10 sg Sequoiadendron giganteum 2 3 Good 176,637248 m cm Crataegus monogyna Stricta 3 4 Fair 142,277249 3 gt Gleditsia triacanthos In. Shademaster 1 1 Poor Dying. 177,124250 33 chl Chamaecyparis lawsoniana 3 10 Good 142,276251 4 mk Magnolia kobus 1 3 Fair Dieback. 195,254252 6 mr Malus Redbud 1 3 Good 171,595253 6 mr Malus Redbud 1 3 Good 171,594254 6 mr Malus Redbud 1 3 Good 171,593255 6 po Picea omorika 1 2 Good 195,252256 5 po Picea omorika 1 2 Good 171,591257 6 po Picea omorika 1 2 Good 171,592258 7 fs Fagus sylvatica 1 2 Fair Dieback. 195,250259 12 pk Prunus serrulata Kwanzan 2 3 Good260 28 pk Prunus serrulata Kwanzan 3 4 Good 142,275261 33 pk Prunus serrulata Kwanzan 3 4 Good 142,274262 27 sar Sorbus aria 4 5 Good 195,247263 16 pk Prunus serrulata Kwanzan 3 3 Good 195,245264 7 po Picea omorika 1 4 Fair 195,243265 6 po Picea omorika 1 4 Good 195,241266 7 crl Crataegus x lavellei 2 3 Good 195,239267 6 crl Crataegus x lavellei 3 3 Fair 195,238268 19 pk Prunus serrulata Kwanzan 3 4 Fair 142,270269 8 fs Fagus sylvatica 1 3 Good 195,236270 4 fs Fagus sylvatica 1 3 Poor Dead. 171,723271 20 sg Sequoiadendron giganteum 2 5 Good 195,235272 5 sar Sorbus aria 1 3 Fair 142,263273 20 sar Sorbus aria 3 4 Fair 142,264274 23 sar Sorbus aria 3 5 Poor Excessive lean. 142,265275 22 mr Malus Redbud 3 5 Poor Excessive lean, decay. 195,234276 17 sar Sorbus aria 3 4 Fair Lean. 142,266277 22 sar Sorbus aria 3 5 Fair 142,267278 5 cb Carpinus betulus 1 4 Good 179,635279 30 chl Chamaecyparis lawsoniana 2 10 Good 142,268280 5 mk Magnolia kobus 1 2 Poor Dieback. 195,231


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #281 4 mk Magnolia kobus 1 2 Poor Dying. 178,937282 49 pn Pinus nigra 4 12 Good 142,262283 27 chl Chamaecyparis lawsoniana 2 10 Good 142,261284 5 mr Malus Redbud 2 3 Fair Dieback. 171,680285 7 mr Malus Redbud 1 3 Good 171,679286 7 mr Malus Redbud 2 3 Good 171,678287 3 mk Magnolia kobus 1 3 Good 178,936288 43 sg Sequoiadendron giganteum 2 4 Good289 4 fsa Fagus sylvatica Aspleniifolia 1 3 Good 195,229290 19 pk Prunus serrulata Kwanzan 3 3 Good 142,258291 24 sg Sequoiadendron giganteum 1 3 Good 171,671292 24 pk Prunus serrulata Kwanzan 4 4 Good 142,257293 25 pk Prunus serrulata Kwanzan 4 4 Good 142,256294 5 mr Malus Redbud 1 3 Good 171,676295 4 gs Gleditsia triacanthos In. Sunburst 1 3 Fair Dieback. 192,229296 55 chl Chamaecyparis lawsoniana 2 11 Good 142,255297 m fsa Fagus sylvatica Aspleniifolia 1 3 Fair Dieback. 195,228298 7 po Picea omorika 1 4 Good 171,865299 7 po Picea omorika 1 3 Good 171,864300 28 pk Prunus serrulata Kwanzan 5 4 Good 142,253301 44 pk Prunus serrulata Kwanzan 5 4 Good 142,252302 5 mr Malus Redbud 1 4 Good 195,225303 12 sg Sequoiadendron giganteum 1 3 Good 195,224304 33 pk Prunus serrulata Kwanzan 3 4 Good 142,251305 32 pk Prunus serrulata Kwanzan 3 4 Good 142,250306 34 pk Prunus serrulata Kwanzan 4 4 Fair Dieback. 142,249307 m fsa Fagus sylvatica Aspleniifolia 41 3 Good 172,241308 7 po Picea omorika 1 3 Good 171,846309 4 po Picea omorika 1 2 Fair Weak. 171,845310 11 cn Cornus nuttallii Eddies 2 4 Good 142,248311 7 po Picea omorika 1 3 Good 195,222312 7 mr Malus Redbud 2 4 Good 179,458313 13 sg Sequoiadendron giganteum 1 4 Good 176,699314 17 gs Gleditsia triacanthos In. Sunburst 4 4 Good 142,247315 6 mr Malus Redbud 1 3 Good 171,720316 15 sg Sequoiadendron giganteum 1 4 Good 171,438317 27 pk Prunus serrulata Kwanzan 6 4 Good 142,242318 6 chn Chamaecyparis nootkatensis 1 3 Good 142,244319 30 pk Prunus serrulata Kwanzan 4 4 Fair Dieback. 142,245320 36 pk Prunus serrulata Kwanzan 5 4 Fair Damaged. 142,243321 16 pn Pinus nigra 2 4 Good 142,241322 4 td Taxodium distichum 1 1 Poor Dying. 184,340323 25 pk Prunus serrulata Kwanzan 4 4 Good 142,238324 4 mk Magnolia kobus 1 3 Fair Dieback. 171,765325 24 fsd Fagus sylvatica Dawyckii 2 11 Fair 195,221326 6 fsa Fagus sylvatica Aspleniifolia 1 4 Good 172,240327 3 cn Cornus nuttallii Eddies 1 2 Good328 8 crl Crataegus x lavellei 1 4 Good 171,686329 8 ls Liquidambar styraciflua Worpleston 1 4 Good 173,992330 9 ls Liquidambar styraciflua Worpleston 1 4 Good 187,802331 3 fsr Fagus sylvatica Rotundifolia 1 2 Good 187,807332 5 po Picea omorika 1 4 Good333 9 ls Liquidambar styraciflua Worpleston 2 4 Good 171,668334 9 cd Cedrus deodara 2 4 Good 171,840335 4 mk Magnolia kobus 1 3 Fair Dieback. 171,764336 6 cd Cedrus deodara 1 3 Fair Dieback. 195,220


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #337 29 cn Cornus nuttallii Eddies 2 5 Good338 8 ls Liquidambar styraciflua Worpleston 2 5 Good 187,801339 7 crl Crataegus x lavellei 1 3 Fair Damaged. 171,684340 4 fsr Fagus sylvatica Rotundifolia 1 3 Good 187,806341 10 ls Liquidambar styraciflua Worpleston 1 4 Good342 m cn Cornus nuttallii Eddies 3 4 Good 142,235343 5 ls Liquidambar styraciflua Worpleston 1 4 Good 176,288344 3 mk Magnolia kobus 4 3 Poor Dead. 171,763345 m cn Cornus nuttallii Eddies 3 4 Fair Damaged. 142,236346 6 cd Cedrus deodara 2 3 Good 171,665347 9 cn Cornus nuttallii Eddies 2 4 Good 142,234348 7 po Picea omorika 1 3 Good 171,719349 24 ug Ulmus glabra 3 6 Good 142,232350 8 crl Crataegus x lavellei 1 3 Good 171,683351 8 ls Liquidambar styraciflua Worpleston 1 4 Good 171,666352 10 cn Cornus nuttallii Eddies 2 4 Fair Damaged. 142,233353 m fsy Fagus sylvatica Aurea 1 3 Fair Dying. 171,739354 43 sar Sorbus aria 4 6 Good 142,230355 5 po Picea omorika 1 2 Good 171,718356 8 crl Crataegus x lavellei 1 3 Fair Dying.357 28 ua Ulmus americana 4 10 Fair Damaged. 142,229358 10 crl Crataegus x lavellei 1 3 Good 171,681359 20 ua Ulmus americana 3 9 Good 142,227360 30 ua Ulmus americana 3 9 Good 142,226361 8 po Picea omorika 1 4 Good 171,717362 9 cd Cedrus deodara 2 5 Good 171,663363 37 ua Ulmus americana 5 10 Fair Dieback. 142,225364 37 ua Ulmus americana 5 10 Good365 37 sar Sorbus aria 4 7 Good 142,224366 3 fsa Fagus sylvatica Aspleniifolia 1 2 Fair Dying. 171,738367 50 ppo Pinus ponderosa 3 10 Good 142,221368 50 ppo Pinus ponderosa 3 13 Good 142,222369 m ppo Pinus ponderosa 3 10 Good 142,219370 80 ppo Pinus ponderosa 3 13 Good 142,220371 7 crl Crataegus x lavellei 1 3 Fair Dieback. 171,734372 36 ua Ulmus americana 3 12 Good 142,217373 3 crl Crataegus x lavellei 1 3 Poor Dead.374 40 ua Ulmus americana 4 5 Fair Damaged. 195,290375 m cn Cornus nuttallii Eddies 2 4 Good376 10 cd Cedrus deodara 2 9 Good 151,075377 5 fsy Fagus sylvatica Aurea 1 3 Good 172,822378 7 po Picea omorika 1 3 Good 195,283379 9 po Picea omorika 1 6 Good 195,281380 7 po Picea omorika 1 4 Good 195,280381 40 ua Ulmus americana 4 8 Fair Dieback. 142,214382 50 ua Ulmus americana 5 10 Fair Dieback.383 14 aci Acer circinatum 2 3 Fair Dieback. 142,211384 8 aci Acer circinatum 1 3 Fair Dying. 142,212385 8 aci Acer circinatum 2 3 Fair Dying. 142,213386 7 mk Magnolia kobus 1 3 Good 171,761387 5 crl Crataegus x lavellei 1 3 Fair Dieback. 195,276388 35 chl Chamaecyparis lawsoniana 4 12 Good 142,210389 m ag Acer griseum 1 3 Good390 12 ag Acer griseum 2 4 Fair Dying. 171,733391 7 cd Cedrus deodara 1 4 Good 195,262392 96 sg Sequoiadendron giganteum 3 Good 142,207


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #393 m fsy Fagus sylvatica Aurea 1 4 Fair Dieback. 172,821394 40 ps Pinus sylvestris 3 5 Good395 60 qp Quercus palustris 7 10 Good 195,266396 7 po Picea omorika 1 3 Good 172,233397 6 po Picea omorika 1 3 Good 172,232398 9 po Picea omorika 2 4 Good 172,231399 13 cn Cornus nuttallii Eddies 3 5 Fair Damaged. 195,268400 6 sj Styrax japonicus 1 3 Fair Bark borer.401 9 cn Cornus nuttallii Eddies 2 7 Good 195,270402 50 qro Quercus robur 6 15 Good 195,271403 6 mk Magnolia kobus 1 4 Good 171,759404 6 sj Styrax japonicus 1 3 Good 171,634405 60 ps Pinus sylvestris 5 16 Good 142,201406 30 ps Pinus sylvestris 3 11 Good 142,202407 32 ps Pinus sylvestris 4 10 Good408 6 fsp Fagus sylvatica Pink 1 3 Good 179,468409 60 sg Sequoiadendron giganteum 3 12 Good 142,199410 7 ag Acer griseum 1 3 Good 171,730411 9 po Picea omorika 1 3 Good 172,239412 6 po Picea omorika 1 4 Good 171,732413 8 po Picea omorika 1 4 Good 171,731414 7 sj Styrax japonicus 1 4 Good 171,424415 27 tpl Tilia platyphyllos Laciniata 3 8 Good416 7 fsp Fagus sylvatica Pink 2 3 Good 179,467417 45 sar Sorbus aria 4 6 Good 142,196418 20 sar Sorbus aria 2 4 Fair Damaged. 142,194419 30 sar Sorbus aria 3 8 Fair Damaged. 142,195420 7 po Picea omorika 1 3 Good 161,754421 10 cd Cedrus deodara 2 4 Good 171,661422 46 ld Larix decidua 3 20 Good 142,187423 6 mk Magnolia kobus 1 3 Good 171,758424 6 fs Fagus sylvatica 1 3 Good 195,253425 10 po Picea omorika 1 3 Good 171,660426 5 po Picea omorika 1 4 Fair Weak. 195,255427 3 mk Magnolia kobus 1 3 Fair Dead. 195,260428 37 sar Sorbus aria 3 9 Good 142,190429 32 sar Sorbus aria 3 9 Good430 7 lt Liriodendron tulipifera 1 3 Good 195,251431 44 ld Larix decidua 3 23 Good 142,191432 4 sj Styrax japonicus 1 3 Fair Dead. 195,248433 6 mk Magnolia kobus 1 4 Fair Damaged. 195,246434 5 sj Styrax japonicus 1 3 Fair Dieback. 195,242435 4 mk Magnolia kobus 1 3 Fair Dieback.436 4 fsy Fagus sylvatica Aurea 2 3 Good 195,244437 4 sj Styrax japonicus 1 3 Fair Dying. 171,736438 5 mk Magnolia kobus 1 4 Good439 106 cd Cedrus deodara 6 20 Good 195,240440 7 cd Cedrus deodara 1 4 Good 195,237441 70 ac Abies concolor 3 20 Good 142,186442 80 ug Ulmus glabra 6 13 Good 142,185443 160 sg Sequoiadendron giganteum 6 23 Good 195,233444 106 ug Ulmus glabra 7 11 Good 195,232445 170 sg Sequoiadendron giganteum 6 30 Good 126,268446 60 pp Picea pungens 4 20 Good 142,180447 100 ug Ulmus glabra 7 18 Good 142,179448 170 sg Sequoiadendron giganteum 6 30 Good 126,267


Karen Kroeker

RAV RAPID TRANSIT


FILE 03145

Tree # Dbh Code Genus Species Var./Cult Spread Height Cond Defects noted Van Ser #449 50 pp Picea pungens 2 21 Good 142,177450 30 ug Ulmus glabra 3 7 Good 142,176451 170 sg Sequoiadendron giganteum 4 30 Good 126,266452 50 sg Sequoiadendron giganteum 2 10 Good 195,230453 3 cd Cedrus deodara 1 3 Good 195,227454 3 cd Cedrus deodara 1 2 Good 195,266455 15 pk Prunus serrulata Kwanzan 3 3 Good 195,223456 20 sg Sequoiadendron giganteum 2 5 Good 142,170457 14 pk Prunus serrulata Kwanzan 2 3 Good 142,169458 120 sg Sequoiadendron giganteum 3 15 Good


Karen Kroeker

Tree Inventory MappingAPPENDIX 8-D

Richmond- No. 3 Road Medians

APPENDIX 8-D1

Vancouver International Airport- Grant McConachie Way

APPENDIX 8-D2

Vancouver- Cambie Heritage Boulevard and Side Boulevards

APPENDIX 8-D3

Documents

(12) Section 8 - Dec 2004