Preconstruction Community Meeting Larry Mathena Project Manager - - PowerPoint PPT Presentation

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SHIPLEY’S CHOICE DAM REHABILITATION PROJECT

Shipley’s Choice Elementary School September 13, 2018

Larry Mathena – Project Manager

Anne Arundel County Dept. of Public Works

Preconstruction Community Meeting

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Agenda

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• 1. Project Background
• 2. Preconstruction Activities
• 3. Construction Phases & Features
• 4. Road Closure
• 5. Planting Plan
• 6. Construction Schedule
• 7. Project Updates
• 8. Questions

* Please sign in & grab a handout

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Project Background – Shipley’s Dam

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• Dam built in 1981
• Seepage & Settlement

Issues

• MDE deemed dam unsafe

& directs County to remove

• County worked w/ JMT to

complete design for Dam Removal

• Construction Contract

awarded to Paydirt

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Preconstruction Activities – Overhead Line Relocation

• n West Benfield Road

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• Temp. Relocate OH Line around New Culvert
• Street light relocated (Pole to be removed)
• BGE, Comcast, Verizon to relocate lines
• OH lines replaced

after Culvert construction

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Construction Phases

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Phase 1 Culvert Replacement Phase 2 Shipley’s Dam Removal

• Construction

in 2 Phases

• Zoning
• R2
• OS

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Phase 1 – Stream Diversion + Erosion & Sediment Control

• Place ESC

Features

• Install

stream diversion

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Phase 1 – Public Utility Relocations Gas, Water, Force Main, Sanitary/Storm Sewers

• Utility Bypasses
• No interruption

in service

• Existing/New

Culverts in Red

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Phase 1 – Remove Ex. Culvert + Install New Culvert

New 7’x10’ Concrete Box Culvert

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Phase 1 – New Culvert Profile

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Pile Driving & Preconstruction Home Surveys

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• Home surveys conducted by County’s contractor Seismic Surveys
• Preconstruction survey of homes and other structures – Document existing conditions
• Post-construction survey also conducted
• Need pre/post surveys to help determine if damage occurred during construction

Pile Driving for Culvert

• Required due to soft subsoil
• 78 Concrete Piles to be used
• Daytime work only
• Vibration levels will be monitored

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Phase 1 – In Stream Work + Grading

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Road Closed between Pixie Dr & Severnside Dr

Phase 1 Road Closure Detour Plan

• W Benfield Road closed

6+ months

• Sign posted 2 weeks

before closing

• Paydirt proposing change

to Precast Culvert – Could save time

• County Traffic Engineer

will consider signal changes (will monitor traffic during construction)

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• Install Filter Logs + Silt

Fence

• Install Haul Road

down to stream

• Begin removal of dam

embankment

Phase 2 Dam Removal

Oak Stump Dr Cul-de-Sac Shipley’s Choice Dam

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Phase 2 Dam Removal

• Earth fill from Dam

placed along east hillside

• Drain along slope to

intercept runoff

• Bear Branch channel

reestablished after outlet pipe removal

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Phase 1 & 2 – Planting Plan

• Seed & Plant

disturbed areas

• 141 Trees
• 493 Shrubs
• 1676 Live

Stakes

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Tentative Construction Schedule

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• Oct 2018

Ph 1 Construction begins w/ Erosion & Sediment Control Utility Relocations/Road Closure

• Winter

Ph 1 Culvert Installation

• Spring 2019

Ph 1 Culvert completed/Road Opened

• Summer

Ph 2 Dam removal begins

• Late Fall 2019

Ph 2 Construction complete

* Paydirt will provide Construction Schedule by late Sep

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Project Updates

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• Monthly Updates on the Shipley’s Dam Project are emailed to the

following HOAs & Organizations:

• Shipley’s Choice HOA & Community Assoc, Greater Severna Park Council, Point

Field Landing Community Assoc, Crain West, Ben Oaks/Severn River Assoc

• Monthly Project Update will include:
• Updated construction schedule, latest activities, road closure updates
• Project Updates may also be found on the County’s Website
• For web address, see Handout

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Contact Info (on Handout)

Larry Mathena

Project Manager Watershed Protection and Restoration Program Anne Arundel County Department of Public Works 2662 Riva Road, MS 7217 Annapolis, MD 21401 (410) 222-7908 pwmath00@aacounty.org

Alternate POC:

Greg LeBlanc Same Address (410) 222-0043 pwlebl89@aacounty.org

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Questions or Comments?

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Bureau of Utility Operations

24-Hour Emergency Water Services: (410) 222-8400 Billing Inquiries: (410) 222-1144

Bureau of Waste Management Services

Bulk Trash Service/Curbside Collections: (410) 222-6100

Bureau of Highways

Northern District: (410) 222-6120 Central District: (410) 222-7940 Southern District: (410) 222-1933 Traffic Lights/Signs: (410) 222-1940

Bureau of Engineering

General Inquiries: (410) 222-7500