Campbell Ave Rehabilitation Project Powerpoint Presentation

8/2/2019 Campbell Ave Rehabilitation Project Powerpoint Presentation

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Apr i l 4 , 201 2

d e si g n / co n st ru c t i o n so l u t i o n s

CampbellAvenue ProjectUtility Replacement &

Slope Stabilization

Public Informational Meeting


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Goals for this Meeting

Define the Project Challenges

Utility Replacement Slope Stabilization

Provide Overview of Project Schedule

Summarize Work Done to Date

Define Tasks and Schedule Moving Forward

Provide Answers to Frequently Asked Questions


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Project Overview


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Utility Replacement


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RPhase ISew erRepa i rs

Phase I ISew er Repa i rs

Rem ova l o fB lockage ( Roo ts )

15 Sanita

ry Se

wer


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Complications Caused by Voids Under the Roadway


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Complications Caused by Voids Under the Roadway


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Challenging Work Condit ions


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Challenging Work Condit ions


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Night Time Construction


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Damaged Waterline caused by Sewer Collapse


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Temporary Roadway Resurfacing


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Root Removal from Sewer by City Forces


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Preliminary Geotechnical Evaluation


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Con t r i bu to r yDra inag e Sour ce

Erosion

of Bank

Seepage

PerchedGroundwa te rTable

Se t t l em en ta long Shou lde r


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Settlement Along the Roadway Shoulder


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Settlement Along the Roadway Shoulder


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Erosion of Slope


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Erosion of Slope


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Erosion of Slope


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State Wet land at the Bott om of the Slope


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Upland Cont ributory Drainage Course


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Steepness of the Slope


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Expanded Geotechnical Program


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Survey of Slope with Wetland Delineation


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Expanded Soils and Groundwater Program


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Laboratory Test ing


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Cross Section of the Slope


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Activities Moving Forward

Final Evaluation and Coordination of Utilities

Advancement of Slope RemediationAlternatives

Development of Concepts for Thomas Pond


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Slope Stabilization


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Frequently Asked Questions


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Why was Campbell Avenue closed?

An emergency declaration was issued onFebruary 23rd to close Campbell Avenue.This recommendation was made based onongoing issues with the utilities as well asconcerns relative to the stability of theslope. Without a full understanding of

these issues, conditions potentially posed apublic safety threat.

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A:


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What is the cause of these problems?

The initial sewer collapse appears to be theresult of surcharging conditions, with high

flows and velocities, experienced during theextreme weather in the Fall. The repair ofthe damaged utilities led to the discovery ofother factors which raised concerns relative

to the overall stability of the slope.

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A:


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What is causing delays in remediating theproblems?

In order to better understand the existingconditions for both the utilities and theslope, expanded geotechnical and utility

investigations needed to be progressed.The Engineer recommended that furtherrepairs to the infrastructure were placed onhold until the direction of the remediationmeasures was better understood.

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A:


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What problems need to be addressed priorto the re-opening of the roadway?

The solution needs to address issues withthe damage utilities as well as theconditions affecting the stability of the

slope.

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A:


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How much is this project going to cost?

The extent of the remediation work has notbeen fully defined at this time. As such,cost implications are currently being

evaluated and will be taken into accountwith other factors such as the constructionmethods and the Citys ability to reopenthe roadway. Upon completion of ongoingwork tasks, further details will be releasedto the public later this month.

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A:


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Will FEMA assist with the funding of thisproject?

The City is currently working together withFEMA on this project, as well as otherprojects resulting from Hurricane Irene and

Tropical Storm Lee. A final determinationof FEMA funding for this project has notbeen made to date. Remediation of theutilities and slope will need to be completedby the City for Campbell Avenue regardlessof FEMAs decision on funding.

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A:


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When will Campbell Avenue be re-openedto the general public?

The City hopes to have the roadway re-opened by July, upon completion of theutility repairs. It is anticipated that themajority of the work required to stabilizethe slope will be completed from the baseof the slope. That said, temporary closuresand/or limitations to traffic may be

necessary to complete specific itemsassociated with the slope remediationwork.

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A:


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Additional Questions


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ContactMike Fraser

Deputy Director of Public Information518.279.7131

[email protected]

Documents

Campbell Ave Rehabilitation Project Powerpoint Presentation