Proposed Trail Location and Arborist Assessment Report - May... · Trevor Cox, RPP, MCIP ISA Certified Arborist (PN-1920A) ... x Tree survey, AutoCad dwg from Murray and Associates

Submitted to: UBC Properties Trust Suite 101 - 555 Great Northern Way Vancouver, British Columbia V5T 1E2

Phone:

Date: May 15, 2019

Submitted by:

Proposed Trail Location and Arborist Assessment For: West Greenway Project University of British Columbia

Proposed Trail Location and Arborist Assessment: UBCPT Western Greenway

3559 Commercial Street, Vancouver B.C. V5N 4E8 | T 604-733-4886 1

The following Diamond Head Consulting staff conducted the on-site tree inventory and prepared or reviewed the report. All staff accreditations are provided below for reference.

Trevor Cox, RPP, MCIP ISA Certified Arborist (PN-1920A) ISA Tree Risk Assessment Qualified (TRAQ) BC Parks Wildlife and Danger Tree Assessor

Conor Corbett MSFM, RPF ISA Certified Arborist (PN-8429A) ISA Tree Risk Assessment Qualified (TRAQ)

Kristian Short, Cert. Horticulture ISA Certified Arborist (PN-8029 A) ISA Tree Risk Assessment Qualified (TRAQ) BC Parks Wildlife and Danger Tree Assessor (P2229)

Please contact us if there are any questions or concerns about the contents of this report. Phone: 604-733-4886 Fax: 604-733-4879 Email: [email protected] or [email protected] Website: www.diamondheadconsulting.com WCB: # 657906 AQ (003)



Contents 1.0 Introduction ........................................................................................................................... 3

1.1 Scope of Assignment .................................................................................................................................... 3 1.2 Site Overview ............................................................................................................................................... 3

2.0 Process and Methods Trail Location......................................................................................... 6 3.0 Findings: Trees in the Proposed Pathway ................................................................................. 7

3.1 Tree Conflicts ............................................................................................................................................... 7 4.0 Process and Methods Tree Risk Assessment ............................................................................ 9

4.1 Tree Hazards .............................................................................................................................................. 10 5.0 Summary and Conclusions ..................................................................................................... 12 Appendix 1 Report Assumptions and Limiting Conditions .......................................................... 13 Appendix 2 Maps of Trees to be Retained and Removed with the Path Location ........................ 15



1.0 Introduction 1.1 Scope of Assignment Diamond Head Consulting Ltd. (DHC) was retained to review the location of the proposed trail amongst the trees within the greenway and offer input in relation to the path direction and the potential impact on trees. In addition, select areas were assessed for tree risk. DHC visited the site in April and May of 2019. In preparing this report, we also reviewed the following information:

Arborist Assessment for the Western Greenway Project, report prepared by Diamond Head Consulting Ltd, May 2, 2018.

Tree survey, AutoCad dwg from Murray and Associates (obtained from UBC Properties Trust). Initial trail location, AutoCad dwg from Perry and Associates.

This report is produced with the following primary limitations, detailed limitations specified in Appendix 1:

1) Our investigation is based solely on visual inspection of the trees during our last site visit. 2) This inspection is conducted from ground level and is involves a visual inspection of the tree

from all sides to look at the site, roots, trunk and branches. We do not conduct aerial inspections, soil tests or below grade root examinations to assess the condition of tree root systems unless specifically contracted to do so.

3) Risk assessments consider only known targets and visible tree conditions, and represent the condition at the time of inspection only.

4) Only the trees specified in the scope of work [see the map below indicating the areas assessed] were assessed and assessments were performed within the limitations specified.

5) Risk is assessed in the context of the timeframe specified (1 year). However, it is not a guarantee period for the risk assessment.

6) This report does not provide any estimates to implement the proposed recommendations provided in this report.

7) Tree Risk Assessments were completed following ISA Standards to the accepted industry standard of care. Trees that do not have signs of visible weakness can however fail under abnormal weather conditions and wind events, or in any case where the forces applied exceed the strength of the tree or its parts.

1.2 Site Overview The western greenway is in the South Campus neighbourhood of UBC and is adjoining to the Farm property boundary (see Figure 1 below). It is a well forested, linear strip that is located between Ross Road, and the development that is occurring along it to the south, and the northeastern edge of the Farm. The forest cover is a mixed stand dominated by western redcedar (Thuja plicata) and Douglas-fir (Pseudotsuga mensiezzii). Along the edges of the stand where there has been previous disturbance there is red alder (Alnus rubra) and throughout the stand there are scattered bigleaf maple (Acer macrophyllum), willow (Salix scouleriana hybrid) and cherry (Prunus emarginata). There are a few



scattered western hemlock (Tsuga heterophylla) trees, a large Sitka spruce (Picea sitchensis) and an arbutus (Arbutus mensiezzii). Both the arbutus (#7292 by the large fir with the eagle’s nest) and spruce (#7256 south of the Polygon Development) are uncommon in this area and region. Within this greenway there are a few factors affecting the overall health of the trees. These include:

1) There are two laminated root rot pockets (Phellinus suphurascens) where large Douglas-fir trees are dead. This disease is significant in that tree species that are susceptible to the disease (Douglas-fir and Western hemlock in this forested area) are infected by root to root contact. Infected trees are prone to failure in any direction with little to no force exerted on them. Western redcedar and deciduous tree species are thought to be resistant to immune to this disease. Fortunately, in both areas near these pockets there are few susceptible species nearby to continue the spread of the disease.

2) Many of the western redcedar in the lower mainland are declining in response to several stressors including climate change and this is being exacerbated by other stressors including development. The forest health specialist from the province stated that “by the end of the 2017 summer, many areas throughout the province were displaying symptoms of drought stress and drought related mortality. On the Coast, the most obvious signs were detected in western redcedar (on drier sites such as rocky outcrops/areas with thin soils and south facing slopes) and young plantations. We anticipate there will be more drought impact that will manifest in 2018 and although we have had periods of drought in the past, what we’ve experienced since the late 90s does seem to be more out of the ordinary.”1

3) Those trees that have been removed for the development to the north of the greenway have left a forested edge that got exposed to light and warmth that it was not accustomed to on the lower canopy levels. The needles on those trees that were in the shade were accustomed to lower light levels (shade needles) and with the new sun exposure had to expend energy to grow new needles to adapt to the sunlight (sun needles). This can take up to three years for the tree to change and if the tree is also experiencing drought, this new needle growth can cause a lot of stress on the tree and cause it to decline. All along the new edge there are smaller western redcedar trees that have died and it is suspected that many died in response the change in light levels.

4) Human caused impacts. Any work near or that changes the hydrology of a site will cause some impact to trees nearby. Some tree species are more susceptible to these changes than others. Western redcedar is one of the more intolerant species found within this stand of trees.

1 Email correspondence with Babita Bains, Provincial Forest Entomologist from Ministry of Forests, Lands and Natural Resource Operations. October 24, 2018.



Figure 1. The top map indicates the layout of the greenway in relation to Ross Road and the aerial below shows the forested area in relation to the South Campus Neighborhood and the UBC Farm.



2.0 Process and Methods Trail Location A pathway is proposed within the greenway to help facilitate the movement of people throughout the campus. The pathway is to be a 3-4 meter asphalt path. When it is located amongst trees the path will narrow to 3 meters and may be even narrow where located adjacent to significant trees. The proposed route prepared by Perry and Associates was initially developed considering design principles prepared by UBC Campus Planning. This included the principle that “mature tree root systems, forest soils, understory and mid-canopy vegetation should be retained whenever possible.” It is recommended that the restoration work that is proposed for this area consider placing mulch around those larger western redcedar trees that are in close proximity to the development as they are stressed and will potentially need supplemental irrigation this summer. In addition, it is critical that any machine work that is to be done within the greenway be conducted under supervision or with strict guidelines about what constitutes disturbance of the surrounding ecology and penalties for not following these guidelines. The following maps and tables provide a summary of the trees impacted by the proposed route and those trees that are either dead or considered hazards in relation to the development or people on the trail. The proposed trail is to be built with no excavation in the root zone of trees and in general is to be built above the existing grade. It will meander with the existing topography to help reduce the impacts to the surrounding soils and vegetation. The trail design is to incorporate techniques to allow the passage of air to roots below and help minimize compaction. Appendix 2 provides the maps showing the initial location of the path and where it was re-routed to accommodate mature trees.

Figure 2. A typical trail detail with aerated base material in critical root zones. Asphalt would be placed instead of

clear crush.



Figure 3. A trail detail from the City of Vancouver showing an asphalt trail over root zones. The aeration pipes

would only be necessary in areas where the depth of the trail is to exceed 0.30m.

3.0 Findings: Trees in the Proposed Pathway 3.1 Tree Conflicts Table 1. Attributes of trees to be removed for the pathway.

Tag # Species DBH (cm)

Ht (m)

Condition Comments

2530 Alder (A. rubra) 30 20 Moderate Single stem, intermediate tree.

2586 Cedar (T. plicata) 27 12 Good Single stem, intermediate.

2509 Maple (A. macrophyllum)

23 15 Moderate

2526 Alder (A. rubra) 21 17 Moderate Phototropic lean west

2530 Alder (A. rubra) 30 20 Moderate Single stem, intermediate tree.

2567 Holly (I. aquifolium) 18 12 Moderate Two main stems

2577 Cedar (T. plicata) 93 25 Moderate Two stems from base, 42 and 51, acute union, small seam.

2586 Cedar (T. plicata) 27 12 Good Single stem, intermediate.

2598 Cedar (T. plicata) 17 12 Poor suppressed


28 15 Moderate




Ht (m)

Condition Comments

2636 Alder (A. rubra) 48 18 Moderate

2991 Alder (A. rubra) 16 6 Poor

2994 Alder (A. rubra) 27 18 Good


6680 Cedar (T. plicata) 20 5 Poor Adj tree failure broke main stem

6681 Douglas-fir (P. menziesii)

45 27 Poor Lean to W. unsure why, dominant adj fir has very thin crown, possibly root rot.

6800 Alder (A. rubra) 55 17 Dead/Dying 2 stems both in Advanced decline

6892 Hemlock (T. heterophylla)

15 10 Poor

6898 Cedar (T. plicata) 24 12 Moderate


6938 Cedar (T. plicata) 28 7 Moderate Two stems



6990 Birch (B. papyrifera) 21 14 Moderate Suppressed

7300 Cedar (T. plicata) 84 25 Moderate Crooked upper stem


57 28 Poor

Heavy cone crop, thinning crown. Possible decay column, bird activity. New exposure north.


20,21,15,10

15 Moderate Coppiced maple, young tree

Table 2. Total number of trees to be removed for the trail by species.

Tree Species Trees to be Removed

Alder (A. rubra) 10

Birch (B. papyrifera) 1

Cedar (T. plicata) 7

Douglas-fir (P. menziesii) 1

Hemlock (T. heterophylla) 2

Holly (I. aquifolium) 1

Maple (A. macrophyllum) 3

Grand Total

25



4.0 Process and Methods Tree Risk Assessment Tree risk assessments were completed following methods of the ISA Tree Risk Assessment Manual2 published in 2013 by the International Society of Arboriculture, which is the current industry standard for assessing tree risk. This methodology assigns risk based on the likelihood of failure, the likelihood of impact and the severity of consequence if a failure occurs. The likelihood and risk rating matrices used to categorize tree risk are provided below. These two risk rating matrices are taken from the International Society of Arboriculture Tree Risk Assessment Qualification Manual. We conducted a basic assessment from ground level.

Matrix 1: Likelihood

Likelihood of Failure

Likelihood of Impacting Target

Very Low Low Medium High

Imminent Unlikely Somewhat Likely Likely Very Likely

Probable Unlikely Unlikely Somewhat Likely Likely

Possible Unlikely Unlikely Unlikely Somewhat Likely

Improbable Unlikely Unlikely Unlikely Unlikely

Matrix 2: Risk Rating

Likelihood of Failure and Impact

Consequences of Failure

Negligible Minor Significant Severe

Very Likely Low Moderate High Extreme

Likely Low Moderate High High

Somewhat Likely Low Low Moderate Moderate

Unlikely Low Low Low Low

This risk assessment was limited to targets located on the proposed trail as well as the buildings at Lot 8 and Lot 11. No other areas were assessed for targets. Please note that trees that were rated as a moderate risk but had an extreme consequence of failure were noted for removal. In addition, dead trees that could strike a target were also noted. Many of these trees can have a part or parts removed such that they no longer pose a risk to the target. This includes ‘wildlifing’ (cutting it down) to a certain height so that it can continue to provide habitat.

2 Dunster, J.A., Smiley, E.T., Matheny, N. and Lilly, S. (2013). Tree Risk Assessment Manual. International Society of Arboriculture. Champaign, Illinois.



In addition, some of the recently dead or dying trees have an overall lower risk in that they have yet to decay in such a way that the probability of their failure has increased substantially. There is an opportunity to remove some of these trees in subsequent years. There are operational efficiencies in being able to remove these trees all at once, but it comes at a cost to the habitat that these trees provide. UBC Campus and Community Planning should carefully consider the risk these trees pose versus the habitat they provide in deciding which trees to remove. These trees are identified in Table 5 below. 4.1 Tree Hazards Table 3. Attributes of tree hazards that should be removed/wildlifed prior to trail building.


Ht (m)

Condition Comments

2538 Cedar (T. plicata) 43 20 Dead/Dying

2570 Cedar (T. plicata) 62 25 Poor Poor structure

3033 Alder (A. rubra) 26 18 Dead/Dying

4773 Cedar (T. plicata) 83 30 Dead/Dying Dead

4780 Cedar (T. plicata) 35 15 Moderate One main stem, secondary stems growing from large surface roots. Dieback in top

4789 Cedar (T. plicata) 49 18 Moderate Still roots have formed. Large intermediate tree,


38 26 Dead/Dying Dead

6676 Cherry (P. emarginata)

17 16 Dead/Dying Tree is dead and has a high height to diameter ratio


35 27 Poor Lean to W. unsure why, dominant adj fir has very thin crown, possibly root rot.


85 40 Poor Very thin. Down, appears to be in decline. Looks like root rot..

6691 Cedar (T. plicata) 22 5 Poor Adj tree failure broke mai stem.

6757 Alder (A. rubra) 34 18 Dead/Dying Dead


50 24 Poor Large cavity midstem.

6807 Alder (A. rubra) 25 13 Dead/Dying In advanced decline


26 15 Dead/Dying Dead

7266 Cedar (T. plicata) 77 23 Poor Major decay cavity at base.


83 40 Poor Sig. dieback in crown. Potential root rot. Can’t confirm.



Table 4. Total number of immediate hazard trees to be removed or wildlifed.


Alder (A. rubra) 3


Cherry (P. emarginata) 1

Douglas-fir (P. menziesii) 3

Hemlock (T. heterophylla) 2


Grand Total

17

Table 5. Attributes of tree hazards that can be removed subsequently if desired.


Ht (m)

Condition Comments


21 15 Dead/Dying Dead tree

773 Cherry (P. emarginata)

33 16 Dead/Dying

2526 Cedar (T. plicata) 65 25 Moderate

2934 Cedar (T. plicata) 35,35 25 Dead/Dying In decline, create wildlife tree such that no part can reach a target. two stems from base.

2934 Cedar (T. plicata) 70 25 Dead/Dying In decline, almost dead

6622 Alder (A. rubra) 99 21 Moderate Two stems from base, 51 and 48 cm

6698 Cedar (T. plicata) 55 20 Dead/Dying Almost dead, in decline

6698 Cedar (T. plicata) 55 20 Dead/Dying In decline, create wildlife tree such that no part can reach a target.

7251 Cedar (T. plicata) 32 18 Dead/Dying In decline

7261 Cedar (T. plicata) 77 25 Poor Dead top

7263 Cedar (T. plicata) 88 19 Moderate Codominant in stand, thinning of foliage. Tree is almost dead .

7271 Cedar (T. plicata) 66 25 Dead/Dying In decline. Dead as of May 2019

7271 Cedar (T. plicata) 68 25 Dead/Dying Tree is dead

7322 Cedar (T. plicata) 30 16 Dead/Dying Almost dead, in decline

7322 Cedar (T. plicata) 30 16 Dead/Dying In decline, create wildlife tree such that no part can reach a target.




Ht (m)

Condition Comments

7326 Cedar (T. plicata) 70 20 Poor In decline almost dead

7326 Cedar (T. plicata) 70 20 Dead/Dying In decline. Create as a wildlife tree to a height that no part can reach a target

Table 6. Total number of trees that can be removed/wildlife in the near future.


Alder (A. rubra) 1


Cherry (P. emarginata) 1


Grand Total

17

5.0 Summary and Conclusions In total, 25 trees were found to be in direct conflict with the proposed path. There are 17 trees that are immediate tree hazards and another 17 trees that UBC Campus and Community Planning can determine their risk threshold for recently dead trees adjacent to targets. The time-frame for this risk assessment covers 1 year and is based on the conditions present at the time of assessment. It is up to the risk manager (tree owner or manager) to choose among these risk mitigation options and prioritize the treatments according to their threshold for acceptable risk. It is recommended that trees on-site be inspected adjacent to the trail after construction and a frequency for re-assessment be discussed based on budgets and other tree related policies that UBC adheres to. A tree risk assessment adjacent to the buildings is recommended every two years or at any time site conditions change or after unusual weather events.



Appendix 1 Report Assumptions and Limiting Conditions 1) Unless expressly set out in this report or these Assumptions and Limiting Conditions, Diamond Head

Consulting Ltd. (“Diamond Head”) makes no guarantee, representation or warranty (express or implied) regarding this report, its findings, conclusions or recommendations contained herein, or the work referred to herein.

2) The work undertaken in connection with this report and preparation of this report have been conducted by Diamond Head for the “Client” as stated in the report above. It is intended for the sole and exclusive use by the Client for the purpose(s) set out in this report. Any use of, reliance on or decisions made based on this report by any person other than the Client, or by the Client for any purpose other than the purpose(s) set out in this report, is the sole responsibility of, and at the sole risk of, such other person or the Client, as the case may be. Diamond Head accepts no liability or responsibility whatsoever for any losses, expenses, damages, fines, penalties or other harm (including without limitation financial or consequential effects on transactions or property values, and economic loss) that may be suffered or incurred by any person as a result of the use of or reliance on this report or the work referred to herein. The copying, distribution or publication of this report (except for the internal use of the Client) without the express written permission of Diamond Head (which consent may be withheld in Diamond Head’s sole discretion) is prohibited. Diamond Head retains ownership of this report and all documents related thereto both generally and as instruments of professional service.

3) The findings, conclusions and recommendations made in this report reflect Diamond Head’s best professional judgment given the information available at the time of preparation. This report has been prepared in a manner consistent with the level of care and skill normally exercised by arborists currently practicing under similar conditions in a similar geographic area and for specific application to the trees subject to this report on the date of this report. Except as expressly stated in this report, the findings, conclusions and recommendations it sets out are valid for the day on which the assessment leading to such findings, conclusions and recommendations was conducted. If generally accepted assessment techniques or prevailing professional standards and best practices change at a future date, modifications to the findings, conclusions, and recommendations in this report may be necessary. Diamond Head expressly excludes any duty to provide any such modification if generally accepted assessment techniques and prevailing professional standards and best practices change.

4) Conditions affecting the trees subject to this report (the “Conditions”, include without limitation, structural defects, scars, decay, fungal fruiting bodies, evidence of insect attack, discoloured foliage, condition of root structures, the degree and direction of lean, the general condition of the tree(s) and the surrounding site, and the proximity of property and people) other than those expressly addressed in this report may exist. Unless otherwise stated information contained in this report covers only those Conditions and trees at the time of inspection. The inspection is limited to visual



examination of such Conditions and trees without dissection, excavation, probing or coring. While every effort has been made to ensure that any trees recommended for retention are both healthy and safe, no guarantees, representations or warranties are made (express or implied) that those trees will not be subject to structural failure or decline. The Client acknowledges that it is both professionally and practically impossible to predict with absolute certainty the behavior of any single tree, or groups of trees, in all given circumstances. Inevitably, a standing tree will always pose some risk. Most trees have the potential for failure and this risk can only be eliminated if the risk is removed. If Conditions change or if additional information becomes available at a future date, modifications to the findings, conclusions, and recommendations in this report may be necessary. Diamond Head expressly excludes any duty to provide any such modification of Conditions change or additional information becomes available.

5) Nothing in this report is intended to constitute or provide a legal opinion and Diamond Head expressly disclaims any responsibility for matters legal in nature (including, without limitation, matters relating to title and ownership of real or personal property and matters relating to cultural and heritage values). Diamond Head makes no guarantee, representation or warranty (express or implied) as to the requirements of or compliance with applicable laws, rules, regulations, or policies established by federal, provincial, local government or First Nations bodies (collectively, “Government Bodies”) or as to the availability of licenses, permits or authorizations of any Government Body. Revisions to any regulatory standards (including by-laws, policies, guidelines an any similar directions of a Government Bodies in effect from time to time) referred to in this report may be expected over time. As a result, modifications to the findings, conclusions and recommendations in this report may be necessary. Diamond Head expressly excludes any duty to provide any such modification if any such regulatory standard is revised.

6) Diamond Head shall not be required to give testimony or to attend court by reason of this report unless subsequent contractual arrangements are made, including payment of an additional fee for such services as described in the fee schedule and contract of engagement.

7) In preparing this report, Diamond Head has relied in good faith on information provided by certain

persons, Government Bodies, government registries and agents and representatives of each of the foregoing, and Diamond Head assumes that such information is true, correct and accurate in all material respects. Diamond Head accepts no responsibility for any deficiency, misinterpretations or fraudulent acts of or information provided by such persons, bodies, registries, agents and representatives.

8) Sketches, diagrams, graphs, and photographs in this report, being intended as visual aids, are not

necessarily to scale and should not be construed as engineering or architectural reports or surveys.

9) Loss or alteration of any part of this report invalidates the entire report.



Appendix 2 Maps of Trees to be Retained and Removed with the Path Location

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e ce

nter

of t

he tr

ee)

4.An

y co

nstr

uctio

n ac

tiviti

es o

r gra

dech

ange

s with

in th

e Ro

ot P

rote

ctio

nZo

ne m

ust b

e ap

prov

ed b

y th

epr

ojec

t arb

orist

.

5.Th

is pl

an is

bas

ed o

n a

topo

grap

hic

and

tree

loca

tion

surv

ey p

rovi

ded

byth

e ow

ners

’ Reg

ister

ed B

ritish

Colu

mbi

a La

nd S

urve

yor (

BCLS

) and

layo

ut d

raw

ings

pro

vide

by

the

owne

rs’ E

ngin

eer (

P En

g).

6.Th

is pl

an is

pro

vide

d fo

r con

text

onl

y,an

d is

not c

ertif

ied

as to

the

accu

racy

of th

e lo

catio

n of

feat

ures

or

dim

ensio

ns th

at a

re sh

own

on th

ispl

an. P

leas

e re

fer t

o th

e or

igin

alsu

rvey

pla

n an

d en

gine

erin

g pl

ans.

REFE

REN

CE D

RAW

ING

S

1.Ba

se S

urve

y by

:

CRIT

ICAL

RO

OT

ZON

E

TREE

PRO

TECT

ION

ZO

NE

AND

FEN

CIN

G

SURV

EYED

TRE

E TO

BE

RETA

INED

UN

-SU

RVEY

ED T

REE

TO B

E RE

TAIN

ED

Draw

ing

title

: Pr

opos

ed T

rail

Re-a

lignm

ent

Clie

nt:

UBC

PTPr

ojec

t add

ress

: W

est G

reen

way

3559

CO

MM

ERCI

AL S

TREE

TVA

NCO

UVER

BC

| V5

N 4E

8T

604.

733.

4886

| F

604

.733

.487

9

Page

#1

of 5

Date

: 201

9/05

/10

Draw

n by

: KW

Page

Siz

e: T

ABLO

ID 1

1"x1

7"

Draw

ing

No:

001

A

TREE

TO

BE

REM

OVE

D FO

R PA

TH

(MU

ST B

E SU

RVEY

ED)

LOCA

TIO

N IN

SET

BREAKLINE - SEE DRAWING NO. 001B

TREE

TO

BE

REM

OVE

D BE

CAU

SE IT

IS

AN IM

MED

IATE

OR

FUTU

RE H

AZAR

D

8998

7261

AREA

ASS

ESSE

D BE

SIDE

BU

ILDI

NG

(ACTI

VE)

BOTTOM OF BANK

STOCK

PILE

S

EDGE OF BUSH

HEDGE

EDGE OF BUSH

SID

EWAL

K

GU

TTER

LIN

E

RIVE

PLAN

EPP

29

10

PLAN EPP29484

1504

1508

1511

1513

1515

1517

1518

2984 2990

3758

4719

6556 6557

6626

6627

6628

29

6630

6631 66

4466

45 6646

6647

6648

6649

6650

6651

6652 66

53

6656

6657

6658

6659

6660

6661

6662

6663

6664

666566

6666

686669

6670

6671

6672

6673

6674

6675

6676 6678

6679

668066

8166

82

6683

6684

6685

6686

6687

6688

6689

6690

6691 6692

6693 66

94

6695

6676

6788

6795

6818

6868

32

6833

6

6865

6870

6872

6892

6904

6915

6927

6931

6936

6939

6940

6952

6961

6964

6965

6967

6971

6972

6983

6984

6985

6988

6990

6993

6994

6995

6999

7334

7341

7342

7344

7358

7361

7365

7373

7374

73

7377

2991

2994

6938

6979

6898

Root

rot a

rea #

1 of 2

Adjuste

d rou

te fo

r tra

il

(ACTI

VE)

BOTTOM OF BANK

STOCK

PILE

S

FARM ACCESS

CO

NC

RET

E PA

D

BUIL

DIN

G

EDGE OF BUSH

HEDGE

EDGE OF BUSH

EDGE OF BUSH

RO

SS D

RIV

E

EDG

E O

F PA

VEM

ENT

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

CONCRETE PAD

MEMBRANE

POND

DRIVEWAY

FEN

CE

FEN

CE

SID

EWAL

K

GU

TTER

LIN

E

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

BANK

BOTT

OM

OF

BAN

K

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

SIDEWALK

SID

EWAL

K

GU

TTER

LIN

E

GUTTERLINE

EDG

E O

F PA

VEM

ENT

RO

AD C

ENTE

RLI

NE

EDG

E O

F PA

VEM

ENT

BOTT

OM

OF

BAN

K

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

CONCRETE W

ALL

ROSS

DRI

VE

PLAN

BCP3

0252

PLAN

BCP3

0252

PLAN

EPP

2948

41

PLAN

EPP

2948

4

6

PLAN E

PP2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

8

11

9

10

REF PLAN BCP30253

PLAN

BCP3

0252

24

26

32

38

BIRNEY AVENUE

GRAY AVENUE

NEST

RAPTOR

11

PLAN

EPP

6811

1

PROPO

SED LO

T A

Box

DES

= 114

.3mEL

EVAT

ION

TREE

TOP

= 111

.5mEL

EVAT

ION

TREE

TOP

= 120

.1mEL

EVAT

ION

TREE

TOP

= 107

.7mELE

VATION

TREE

TOP

= 112

.0mEL

EVAT

ION

TREE

TOP

= 115

.8mEL

EVAT

ION

TREE

TOP

26°25'30"

27°33'50"

167°

40'13

"

27°33'50"

52.91

7

167°

40'13

"

45.15

3

77°40'13"

44.845

29°52'13"

110.

313

117°

33'5

0"

38.011

28°57'12"

69.0

58

117°

33'5

0"

69.9

80

117°

33'5

0"

38.000

27°33'50"

Inv.=7

6.31

Inv.=7

5.34 (

E dr

ain)

Inv.=7

5.75(

N drain

)

Inv.=

73.99

Inv.=7

4.07

Inv.=7

6.20

Inv.=

75.9

3

Inv.=7

5.39

Inv.=7

5.44

Inv.=

75.2

7

PLAN

BCP3

0252

PLAN

EPP

2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

7

9

23

RO

SS D

RIV

E38

PT. 24

PLAN BCP30252

10

9

11

PLAN EPP29484

PLAN EPP29484

PLAN EPP29484

PLAN BCP30252

PLAN EPP68111

A

LEG

END

NO

TES

1.

Th

e lo

catio

n of

un-

surv

eyed

tree

son

this

plan

is a

ppro

xim

ate.

The

irlo

catio

n an

d ow

ners

hip

cann

ot b

eco

nfirm

ed w

ithou

t bei

ng su

rvey

ed b

ya

Regi

ster

ed B

C La

nd S

urve

yor.

2.Al

l tre

e pr

otec

tion

fenc

ing

mus

t be

built

to th

e re

leva

nt m

unici

pal b

ylaw

spec

ifica

tions

.The

dim

ensio

ns sh

own

are

from

the

oute

r edg

e of

the

stem

of th

e tr

ee.

3.Th

e tr

ee p

rote

ctio

n zo

ne sh

own

is a

grap

hica

l rep

rese

ntat

ion

of th

ecr

itica

l roo

t zon

e, m

easu

red

from

the

oute

r edg

e of

the

stem

of t

he tr

ee. (

1 2th

e tr

ees d

iam

eter

was

add

ed to

the

grap

hica

l tre

e pr

otec

tion

circle

s to

acco

mm

odat

e th

e su

rvey

poi

nt b

eing

in th

e ce

nter

of t

he tr

ee)

4.An

y co

nstr

uctio

n ac

tiviti

es o

r gra

dech

ange

s with

in th

e Ro

ot P

rote

ctio

nZo

ne m

ust b

e ap

prov

ed b

y th

epr

ojec

t arb

orist

.

5.Th

is pl

an is

bas

ed o

n a

topo

grap

hic

and

tree

loca

tion

surv

ey p

rovi

ded

byth

e ow

ners

’ Reg

ister

ed B

ritish

Colu

mbi

a La

nd S

urve

yor (

BCLS

) and

layo

ut d

raw

ings

pro

vide

by

the

owne

rs’ E

ngin

eer (

P En

g).

6.Th

is pl

an is

pro

vide

d fo

r con

text

onl

y,an

d is

not c

ertif

ied

as to

the

accu

racy

of th

e lo

catio

n of

feat

ures

or

dim

ensio

ns th

at a

re sh

own

on th

ispl

an. P

leas

e re

fer t

o th

e or

igin

alsu

rvey

pla

n an

d en

gine

erin

g pl

ans.

REFE

REN

CE D

RAW

ING

S

1.Ba

se S

urve

y by

:

CRIT

ICAL

RO

OT

ZON

E

TREE

PRO

TECT

ION

ZO

NE

AND

FEN

CIN

G

SURV

EYED

TRE

E TO

BE

RETA

INED

UN

-SU

RVEY

ED T

REE

TO B

E RE

TAIN

ED

Draw

ing

title

: Pr

opos

ed P

ath

Re-a

lignm

ent

Clie

nt:

UBC

PTPr

ojec

t add

ress

: W

est G

reen

way

3559

CO

MM

ERCI

AL S

TREE

TVA

NCO

UVER

BC

| V5

N 4E

8T

604.

733.

4886

| F

604

.733

.487

9

Page

#2

of 5

Date

: 201

9/05

/10

Draw

n by

: KW

Page

Siz

e: T

ABLO

ID 1

1"x1

7"

Draw

ing

No:

001

B

(MU

ST B

E SU

RVEY

ED)

LOCA

TIO

N IN

SET

BREAKLINE - SEE DRAWING NO. 001C

BREAKLINE - SEE DRAWING NO. 001A

TREE

TO

BE

REM

OVE

D FO

R PA

TH89

98

TREE

TO

BE

REM

OVE

D BE

CAU

SE IT

IS

7261

AN IM

MED

IATE

OR

FUTU

RE H

AZAR

D

AREA

ASS

ESSE

D BE

SIDE

BU

ILDI

NG

Xref

.\Re

ceiv

ed\J

an 2

018\

Lot 1

1 Tr

ee R

emov

al.d

wgC

ON

CR

ETE

PAD

BUIL

DIN

G

EDG

E O

F PA

VEM

ENT

DEW

ALK

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

BANK

BOTT

OM

OF

BAN

K

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

PLAN

EPP

2948

4

PLAN

EPP

2948

411

10

NER

11

11

PLAN EPP29484

670

119

2593

2596

2599

2930

2933

2934

2935

2937

2939

2940

2943

2944

2945

2946

2947

2950

2951

3002

3003 3005

3006

3011

3013 30

2330

32

3033

4719

4763

6600

660

6602

6604

6609

6613

6614

6617

6617

6797

6624

6627

6634

6642

6645

6647

6648

6649

6650 66

51

6652

6653

665466

5566

56

66

6658

6661

66626663

6664

6666

6668

6669

667066

71

6672

6673

6674

6675

6676

6677

6678

6679

6680

6681

A

6682

6683

6684 66

856689

6690

6691

6693

6694

6695

6696

6697

6698

669967

00

6701 67

02

6703

6705

6707

6708

6710

6711

6712

6713

6716

6718

6719

6720

6721

6722

6723

6724

6725

6726

6727

6729

6731

6732

6733

6734

6735

6738

6740

6741

6742

6745

6745

6746

6747

6748

6750

6752

6753

6755

6756

6757

6758 67

60

6761

6762

6762

6763

6763

6765

6766

6767

6768

6769

6770

6771

6772

6773

6774

6775

6776

6778

6779

6782

6785

6788

6790

6792

679467

96

6798

6802

6803

6804

6805

6806

6806

6807

6809

6817

6818

6821

6824

6828

6838

6838 68

4068

42

6843

6859

6861

6864

6867

6868

6870

6871

6887

6904

6908

6914

15

7272

7274

7275

7276

7277

7278

7279

7281

7281

7282

7283

7284

7285

7286

7287

7288

7291

7292

7293

7294

7295

7296

7297

7309

7317

7319

7322

7324

7326

7329

7330

7331

7332

7335

7336 73

38

341

7359

7360

7362

7363

7364

7368

7370

7371

7372

7375

7376

7379

7381

1109

1109

8

6866

6869

6800

Root

rot a

rea #

1 of 2

Adjuste

d rou

te fo

r tra

il

413

Small

dead

map

le

(ACTI

VE)

BOTTOM OF BANK

STOCK

PILE

S

FARM ACCESS

CO

NC

RET

E PA

D

BUIL

DIN

G

EDGE OF BUSH

HEDGE

EDGE OF BUSH

EDGE OF BUSH

RO

SS D

RIV

E

EDG

E O

F PA

VEM

ENT

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

CONCRETE PAD

MEMBRANE

POND

DRIVEWAY

FEN

CE

FEN

CE

SID

EWAL

K

GU

TTER

LIN

E

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

BANK

BOTT

OM

OF

BAN

K

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

SIDEWALK

SID

EWAL

K

GU

TTER

LIN

E

GUTTERLINE

EDG

E O

F PA

VEM

ENT

RO

AD C

ENTE

RLI

NE

EDG

E O

F PA

VEM

ENT

BOTT

OM

OF

BAN

K

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

CONCRETE W

ALL

ROSS

DRI

VE

PLAN

BCP3

0252

PLAN

BCP3

0252

PLAN

EPP

2948

41

PLAN

EPP

2948

4

6

PLAN E

PP2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

8

11

9

10

REF PLAN BCP30253

PLAN

BCP3

0252

24

26

32

38

BIRNEY AVENUE

GRAY AVENUE

NEST

RAPTOR

11

PLAN

EPP

6811

1

PROPO

SED LO

T A

Box

DES

= 114

.3mEL

EVAT

ION

TREE

TOP

= 111

.5mEL

EVAT

ION

TREE

TOP

= 120

.1mEL

EVAT

ION

TREE

TOP

= 107

.7mELE

VATION

TREE

TOP

= 112

.0mEL

EVAT

ION

TREE

TOP

= 115

.8mEL

EVAT

ION

TREE

TOP

26°25'30"

27°33'50"

167°

40'13

"

27°33'50"

52.91

7

167°

40'13

"

45.15

3

77°40'13"

44.845

29°52'13"

110.

313

117°

33'5

0"

38.011

28°57'12"

69.0

58

117°

33'5

0"

69.9

80

117°

33'5

0"

38.000

27°33'50"

Inv.=7

6.31

Inv.=7

5.34 (

E dr

ain)

Inv.=7

5.75(

N drain

)

Inv.=

73.99

Inv.=7

4.07

Inv.=7

6.20

Inv.=

75.9

3

Inv.=7

5.39

Inv.=7

5.44

Inv.=

75.2

7

PLAN

BCP3

0252

PLAN

EPP

2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

7

9

23

RO

SS D

RIV

E38

PT. 24

PLAN BCP30252

10

9

11

PLAN EPP29484

PLAN EPP29484

PLAN EPP29484

PLAN BCP30252

PLAN EPP68111

A

6630

LEG

END

NO

TES

1.

Th

e lo

catio

n of

un-

surv

eyed

tree

son

this

plan

is a

ppro

xim

ate.

The

irlo

catio

n an

d ow

ners

hip

cann

ot b

eco

nfirm

ed w

ithou

t bei

ng su

rvey

ed b

ya

Regi

ster

ed B

C La

nd S

urve

yor.

2.Al

l tre

e pr

otec

tion

fenc

ing

mus

t be

built

to th

e re

leva

nt m

unici

pal b

ylaw

spec

ifica

tions

.The

dim

ensio

ns sh

own

are

from

the

oute

r edg

e of

the

stem

of th

e tr

ee.

3.Th

e tr

ee p

rote

ctio

n zo

ne sh

own

is a

grap

hica

l rep

rese

ntat

ion

of th

ecr

itica

l roo

t zon

e, m

easu

red

from

the

oute

r edg

e of

the

stem

of t

he tr

ee. (

1 2th

e tr

ees d

iam

eter

was

add

ed to

the

grap

hica

l tre

e pr

otec

tion

circle

s to

acco

mm

odat

e th

e su

rvey

poi

nt b

eing

in th

e ce

nter

of t

he tr

ee)

4.An

y co

nstr

uctio

n ac

tiviti

es o

r gra

dech

ange

s with

in th

e Ro

ot P

rote

ctio

nZo

ne m

ust b

e ap

prov

ed b

y th

epr

ojec

t arb

orist

.

5.Th

is pl

an is

bas

ed o

n a

topo

grap

hic

and

tree

loca

tion

surv

ey p

rovi

ded

byth

e ow

ners

’ Reg

ister

ed B

ritish

Colu

mbi

a La

nd S

urve

yor (

BCLS

) and

layo

ut d

raw

ings

pro

vide

by

the

owne

rs’ E

ngin

eer (

P En

g).

6.Th

is pl

an is

pro

vide

d fo

r con

text

onl

y,an

d is

not c

ertif

ied

as to

the

accu

racy

of th

e lo

catio

n of

feat

ures

or

dim

ensio

ns th

at a

re sh

own

on th

ispl

an. P

leas

e re

fer t

o th

e or

igin

alsu

rvey

pla

n an

d en

gine

erin

g pl

ans.

REFE

REN

CE D

RAW

ING

S

1.Ba

se S

urve

y by

:

CRIT

ICAL

RO

OT

ZON

E

TREE

PRO

TECT

ION

ZO

NE

AND

FEN

CIN

G

SURV

EYED

TRE

E TO

BE

RETA

INED

UN

-SU

RVEY

ED T

REE

TO B

E RE

TAIN

ED

3559

CO

MM

ERCI

AL S

TREE

TVA

NCO

UVER

BC

| V5

N 4E

8T

604.

733.

4886

| F

604

.733

.487

9

Page

#3

of 5

Date

: 201

9/05

/10

Draw

n by

: KW

Page

Siz

e: T

ABLO

ID 1

1"x1

7"

Draw

ing

No:

001

C

(MU

ST B

E SU

RVEY

ED)

LOCA

TIO

N IN

SET

BREAKLINE - SEE DRAWING NO. 001D

BREAKLINE - SEE DRAWING NO. 001B

Draw

ing

title

: Pr

opos

ed P

ath

Re-a

lignm

ent

Clie

nt:

UBC

PTPr

ojec

t add

ress

: W

est G

reen

way

TREE

TO

BE

REM

OVE

D FO

R PA

TH

TREE

TO

BE

REM

OVE

D BE

CAU

SE IT

IS

AN IM

MED

IATE

OR

FUTU

RE H

AZAR

D

AREA

ASS

ESSE

D BE

SIDE

BU

ILDI

NG

8998

7261

al.d

wg

FARM ACCESS

CO

NC

RET

E PA

D

BUIL

DIN

G

EDGE OF BUSH

EDG

E O

F PA

VEM

ENT

RO

AD C

ENTE

RLI

NE

EDG

E O

F PA

VEM

ENT

BOTT

OM

OF

BAN

K

FEN

CE

PLAN

EPP

6811

1

PROPO

SED

= 11

4.3m

ELEV

ATIO

N

TREE

TOP

= 11

2.0m

ELEV

ATIO

N

TREE

TOP

= 11

5.8m

ELEV

ATIO

N

TREE

TOP

117°

33'5

0"

38.011

28°57'12"

69.0

58

117°

33'5

0"

117°

33'5

0"

38.000

27°33'50"

Inv.=

76.31

PLAN

EPP

2948

4

PLAN

EPP

2948

4

7

9

9

PLAN EPP2948

PLAN EPP68111

A

2631

2617

2632

1035

2501

2502

2502

2504

2504

2505

2506

2509

2511

2512

2515

2516 25

17

2522

2523

2524

2525

25252526

2527

252925

30

2531

2532

2533

2536

2537

2538

2539

2540

2541

2544

2545

2546

2547

2548

2552

2555

2559

2561

2564

2565

2569

2571

2572

2577

2579

2582

2584

2585

2586

2

2588

259

2600

2604

2605

2607

2608

2610

2611

2612

2614

2618

2619

2620

2623

2624

2625 26

26

2628

2629

2633

2639

2640

2641

2642

2643

2644

2648

2649

2650

2651

2653

2656

2657

2659

2660

2661

2664

2668

2671

2672

2674

2677

2678

2679

2680

26812682 26

83 2684

2685

268626

87

2688

2689

2690

2691

2692

269426

95

4766

4771

4778

4786

4788

5270

6600

6601

6603

6606

6611

6621

6623

6625

6626

27

6631

6633

6638

6640

6641

642

6645

6646

665466

5566

56

6656

6660

6661

66626663

6665

6666

6669

6672

6673

7273

7279 7284

7285

7289

7297

7300

7301

7303

7304

7306

7307

7310

7311

731273

1373

14 7315

7316

7318

7323

4

7325

7327

1053

0

1053

110

533

2675

2508

2609

2621

6620

6629

2634

2693

2597

1286

2603

2630

2654

2655

2658

2663

2665

2673

2636

6622

- rem

ove n

orth

stem

Adjuste

d rou

te fo

r tra

ilAdju

sted r

oute

for t

rail

A

(ACTI

VE)

BOTTOM OF BANK

STOCK

PILE

S

FARM ACCESS

CO

NC

RET

E PA

D

BUIL

DIN

G

EDGE OF BUSH

HEDGE

EDGE OF BUSH

EDGE OF BUSH

RO

SS D

RIV

E

EDG

E O

F PA

VEM

ENT

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

CONCRETE PAD

MEMBRANE

POND

DRIVEWAY

FEN

CE

FEN

CE

SID

EWAL

K

GU

TTER

LIN

E

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

BANK

BOTT

OM

OF

BAN

K

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

SIDEWALK

SID

EWAL

K

GU

TTER

LIN

E

GUTTERLINE

EDG

E O

F PA

VEM

ENT

RO

AD C

ENTE

RLI

NE

EDG

E O

F PA

VEM

ENT

BOTT

OM

OF

BAN

K

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

CONCRETE W

ALL

ROSS

DRI

VE

PLAN

BCP3

0252

PLAN

BCP3

0252

PLAN

EPP

2948

41

PLAN

EPP

2948

4

6

PLAN E

PP2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

8

11

9

10

REF PLAN BCP30253

PLAN

BCP3

0252

24

26

32

38

BIRNEY AVENUE

GRAY AVENUE

NEST

RAPTOR

11

PLAN

EPP

6811

1

PROPO

SED LO

T A

Box

DES

= 114

.3mEL

EVAT

ION

TREE

TOP

= 111

.5mEL

EVAT

ION

TREE

TOP

= 120

.1mEL

EVAT

ION

TREE

TOP

= 107

.7mELE

VATION

TREE

TOP

= 112

.0mEL

EVAT

ION

TREE

TOP

= 115

.8mEL

EVAT

ION

TREE

TOP

26°25'30"

27°33'50"

167°

40'13

"

27°33'50"

52.91

7

167°

40'13

"

45.15

3

77°40'13"

44.845

29°52'13"

110.

313

117°

33'5

0"

38.011

28°57'12"

69.0

58

117°

33'5

0"

69.9

80

117°

33'5

0"

38.000

27°33'50"

Inv.=7

6.31

Inv.=7

5.34 (

E dr

ain)

Inv.=7

5.75(

N drain

)

Inv.=

73.99

Inv.=7

4.07

Inv.=7

6.20

Inv.=

75.9

3

Inv.=7

5.39

Inv.=7

5.44

Inv.=

75.2

7

PLAN

BCP3

0252

PLAN

EPP

2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

7

9

23

RO

SS D

RIV

E38

PT. 24

PLAN BCP30252

10

9

11

PLAN EPP29484

PLAN EPP29484

PLAN EPP29484

PLAN BCP30252

PLAN EPP68111

A

6630

LEG

END

NO

TES

1.

Th

e lo

catio

n of

un-

surv

eyed

tree

son

this

plan

is a

ppro

xim

ate.

The

irlo

catio

n an

d ow

ners

hip

cann

ot b

eco

nfirm

ed w

ithou

t bei

ng su

rvey

ed b

ya

Regi

ster

ed B

C La

nd S

urve

yor.

2.Al

l tre

e pr

otec

tion

fenc

ing

mus

t be

built

to th

e re

leva

nt m

unici

pal b

ylaw

spec

ifica

tions

.The

dim

ensio

ns sh

own

are

from

the

oute

r edg

e of

the

stem

of th

e tr

ee.

3.Th

e tr

ee p

rote

ctio

n zo

ne sh

own

is a

grap

hica

l rep

rese

ntat

ion

of th

ecr

itica

l roo

t zon

e, m

easu

red

from

the

oute

r edg

e of

the

stem

of t

he tr

ee. (

1 2th

e tr

ees d

iam

eter

was

add

ed to

the

grap

hica

l tre

e pr

otec

tion

circle

s to

acco

mm

odat

e th

e su

rvey

poi

nt b

eing

in th

e ce

nter

of t

he tr

ee)

4.An

y co

nstr

uctio

n ac

tiviti

es o

r gra

dech

ange

s with

in th

e Ro

ot P

rote

ctio

nZo

ne m

ust b

e ap

prov

ed b

y th

epr

ojec

t arb

orist

.

5.Th

is pl

an is

bas

ed o

n a

topo

grap

hic

and

tree

loca

tion

surv

ey p

rovi

ded

byth

e ow

ners

’ Reg

ister

ed B

ritish

Colu

mbi

a La

nd S

urve

yor (

BCLS

) and

layo

ut d

raw

ings

pro

vide

by

the

owne

rs’ E

ngin

eer (

P En

g).

6.Th

is pl

an is

pro

vide

d fo

r con

text

onl

y,an

d is

not c

ertif

ied

as to

the

accu

racy

of th

e lo

catio

n of

feat

ures

or

dim

ensio

ns th

at a

re sh

own

on th

ispl

an. P

leas

e re

fer t

o th

e or

igin

alsu

rvey

pla

n an

d en

gine

erin

g pl

ans.

REFE

REN

CE D

RAW

ING

S

1.Ba

se S

urve

y by

:

CRIT

ICAL

RO

OT

ZON

E

TREE

PRO

TECT

ION

ZO

NE

AND

FEN

CIN

G

SURV

EYED

TRE

E TO

BE

RETA

INED

UN

-SU

RVEY

ED T

REE

TO B

E RE

TAIN

ED

3559

CO

MM

ERCI

AL S

TREE

TVA

NCO

UVER

BC

| V5

N 4E

8T

604.

733.

4886

| F

604

.733

.487

9

Page

#4

of 5

Date

: 201

9/05

/10

Draw

n by

: KW

Page

Siz

e: T

ABLO

ID 1

1"x1

7"

Draw

ing

No:

001

D

(MU

ST B

E SU

RVEY

ED)

LOCA

TIO

N IN

SET

BREAKLINE - SEE DRAWING NO. 001E

BREAKLINE - SEE DRAWING NO. 001C

Draw

ing

title

: Pr

opos

ed P

ath

Re-a

lignm

ent

Clie

nt:

UBC

PTPr

ojec

t add

ress

: W

est G

reen

way

TREE

TO

BE

REM

OVE

D FO

R PA

TH

TREE

TO

BE

REM

OVE

D BE

CAU

SE IT

IS

AN IM

MED

IATE

OR

FUTU

RE H

AZAR

D

8998

7261

FEN

CE

CO

POND

BOTTOM OF RETAINING WALL

TOP OF RETAINING WALL

DRIVEWAY

SHED

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

HEDG

E

PLAN

EPP

2948

4

8

9

= 11

1.5m

ELEV

ATIO

N

TREE

TOP

= 12

0.1m

ELEV

ATIO

N

TREE

TOP

= 10

7.7m

ELEV

ATIO

N

TREE

TOP

26°25'30"

27°33'50"

29°52'13"

110.

313

117°

33'5

0"

PLAN

EPP

2948

4

9

PLAN EPP29484

11

2555

2602

2502

2510

2518

2519

2520

2520

2522

2524

25252526

2526

2527

2528

2528

2529

2530

2531

2532

2533

2534

2535

2535

2536

7 9

2539

2540

2540

2541

2542

2543

2544

2545

2546

2547

2548

2550

2551

2552

2553 25

54

2557

2558

2559

2560

2561

2563

2564

2565

2566

2568

2569

2570

2572

2574

2575

2576

2578

2580

2581

2584

2585

2586

2587

2588

258925

90

2591

2592

2594

2595

2598 25

99

2601

2604

2606

0

2613

2614

2616

2622

2624

2625 26

26

4773

4774 4775

4777

4778

4779

4780

4781

4782

4783

4784

4785

4787

4789

4790

4791

4792

4793

4794

4805 4806

4807

4808

4810

4811

4812

4813

4814

4815

4816

4817

4818

4821

4822

4823

4824

4825

482648

27

4828

4829

4830

4849

4857

6583

6945

7251

7253

7255

7256

7258

7260

7261

7263

761

7266

7267

7268

7270

7271

7352

7395

7396

7425

7427

7444

7446

7

7453

1053

0

2609

2621

2549

2556

2577

2597

1286

2603Adju

sted r

oute

for t

rail

Adjuste

d rou

te fo

r tra

il

Adjuste

d rou

te fo

r tra

il

(ACTI

VE)

BOTTOM OF BANK

STOCK

PILE

S

FARM ACCESS

CO

NC

RET

E PA

D

BUIL

DIN

G

EDGE OF BUSH

HEDGE

EDGE OF BUSH

EDGE OF BUSH

RO

SS D

RIV

E

EDG

E O

F PA

VEM

ENT

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

CONCRETE PAD

MEMBRANE

POND

DRIVEWAY

FEN

CE

FEN

CE

SID

EWAL

K

GU

TTER

LIN

E

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

BANK

BOTT

OM

OF

BAN

K

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

TOP

OF

DIT

CH

SIDEWALK

SID

EWAL

K

GU

TTER

LIN

E

GUTTERLINE

EDG

E O

F PA

VEM

ENT

RO

AD C

ENTE

RLI

NE

EDG

E O

F PA

VEM

ENT

BOTT

OM

OF

BAN

K

FEN

CE

TOP

OF

BAN

K

BOTT

OM

OF

BAN

K

TOP

OF

DIT

CH

BOTT

OM

OF

DIT

CH

TOP

OF

DIT

CH

CONCRETE W

ALL

ROSS

DRI

VE

PLAN

BCP3

0252

PLAN

BCP3

0252

PLAN

EPP

2948

41

PLAN

EPP

2948

4

6

PLAN E

PP2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

8

11

9

10

REF PLAN BCP30253

PLAN

BCP3

0252

24

26

32

38

BIRNEY AVENUE

GRAY AVENUE

NEST

RAPTOR

11

PLAN

EPP

6811

1

PROPO

SED LO

T A

Box

DES

= 114

.3mEL

EVAT

ION

TREE

TOP

= 111

.5mEL

EVAT

ION

TREE

TOP

= 120

.1mEL

EVAT

ION

TREE

TOP

= 107

.7mELE

VATION

TREE

TOP

= 112

.0mEL

EVAT

ION

TREE

TOP

= 115

.8mEL

EVAT

ION

TREE

TOP

26°25'30"

27°33'50"

167°

40'13

"

27°33'50"

52.91

7

167°

40'13

"

45.15

3

77°40'13"

44.845

29°52'13"

110.

313

117°

33'5

0"

38.011

28°57'12"

69.0

58

117°

33'5

0"

69.9

80

117°

33'5

0"

38.000

27°33'50"

Inv.=7

6.31

Inv.=7

5.34 (

E dr

ain)

Inv.=7

5.75(

N drain

)

Inv.=

73.99

Inv.=7

4.07

Inv.=7

6.20

Inv.=

75.9

3

Inv.=7

5.39

Inv.=7

5.44

Inv.=

75.2

7

PLAN

BCP3

0252

PLAN

EPP

2948

4

PLAN

EPP

2948

4

PLAN

EPP

2948

4

7

9

23

RO

SS D

RIV

E38

PT. 24

PLAN BCP30252

10

9

11

PLAN EPP29484

PLAN EPP29484

PLAN EPP29484

PLAN BCP30252

PLAN EPP68111

A

6630

LEG

END

NO

TES

1.

Th

e lo

catio

n of

un-

surv

eyed

tree

son

this

plan

is a

ppro

xim

ate.

The

irlo

catio

n an

d ow

ners

hip

cann

ot b

eco

nfirm

ed w

ithou

t bei

ng su

rvey

ed b

ya

Regi

ster

ed B

C La

nd S

urve

yor.

2.Al

l tre

e pr

otec

tion

fenc

ing

mus

t be

built

to th

e re

leva

nt m

unici

pal b

ylaw

spec

ifica

tions

.The

dim

ensio

ns sh

own

are

from

the

oute

r edg

e of

the

stem

of th

e tr

ee.

3.Th

e tr

ee p

rote

ctio

n zo

ne sh

own

is a

grap

hica

l rep

rese

ntat

ion

of th

ecr

itica

l roo

t zon

e, m

easu

red

from

the

oute

r edg

e of

the

stem

of t

he tr

ee. (

1 2th

e tr

ees d

iam

eter

was

add

ed to

the

grap

hica

l tre

e pr

otec

tion

circle

s to

acco

mm

odat

e th

e su

rvey

poi

nt b

eing

in th

e ce

nter

of t

he tr

ee)

4.An

y co

nstr

uctio

n ac

tiviti

es o

r gra

dech

ange

s with

in th

e Ro

ot P

rote

ctio

nZo

ne m

ust b

e ap

prov

ed b

y th

epr

ojec

t arb

orist

.

5.Th

is pl

an is

bas

ed o

n a

topo

grap

hic

and

tree

loca

tion

surv

ey p

rovi

ded

byth

e ow

ners

’ Reg

ister

ed B

ritish

Colu

mbi

a La

nd S

urve

yor (

BCLS

) and

layo

ut d

raw

ings

pro

vide

by

the

owne

rs’ E

ngin

eer (

P En

g).

6.Th

is pl

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CRIT

ICAL

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3559

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| V5

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604.

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4886

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9

Page

#5

of 5

Date

: 201

9/05

/10

Draw

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Page

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ABLO

ID 1

1"x1

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Draw

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No:

001

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(MU

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LOCA

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BREAKLINE - SEE DRAWING NO. 001D

Draw

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title

: Pr

opos

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: W

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TO

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REM

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D BE

CAU

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IS

AN IM

MED

IATE

OR

FUTU

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D

AREA

ASS

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D BE

SIDE

BU

ILDI

NG

8998

7261

Documents

Proposed Trail Location and Arborist Assessment Report - May... · Trevor Cox, RPP, MCIP ISA Certified Arborist (PN-1920A) ... x Tree survey, AutoCad dwg from Murray and Associates