Preconstruction Community Meeting

Transcription

1 SHIPLEY S CHOICE DAM REHABILITATION PROJECT Preconstruction Community Meeting Larry Mathena Project Manager Anne Arundel County Dept. of Public Works Shipley s Choice Elementary School September 13, 2018

2 Agenda 1. Project Background 2 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

3 Project Background Shipley s Dam 3 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

4 Preconstruction Activities Overhead Line Relocation on West Benfield Road 4 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

5 Construction Phases 5 Construction in 2 Phases Zoning - R2 - OS Phase 2 Shipley s Dam Removal Phase 1 Culvert Replacement

6 Phase 1 Stream Diversion + Erosion & Sediment Control Place ESC Features Install stream diversion

7 Phase 1 Public Utility Relocations Gas, Water, Force Main, Sanitary/Storm Sewers Utility Bypasses No interruption in service Existing/New Culverts in Red

8 Phase 1 Remove Ex. Culvert + Install New Culvert New 7 x10 Concrete Box Culvert

9 Phase 1 New Culvert Profile

10 Pile Driving & Preconstruction Home Surveys 10 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

11 Phase 1 In Stream Work + Grading

12 Phase 1 Road Closure Detour Plan 12 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) Road Closed between Pixie Dr & Severnside Dr

13 Phase 2 Dam Removal Install Filter Logs + Silt Fence Oak Stump Dr Cul-de-Sac Install Haul Road down to stream Begin removal of dam embankment Shipley s Choice Dam

14 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

15 Phase 1 & 2 Planting Plan Seed & Plant disturbed areas 141 Trees 493 Shrubs 1676 Live Stakes

16 Tentative Construction Schedule 16 Oct 2018 Ph 1 Construction begins w/ Erosion & Sediment Control Utility Relocations/Road Closure Winter Spring 2019 Summer Late Fall 2019 Ph 1 Culvert Installation Ph 1 Culvert completed/road Opened Ph 2 Dam removal begins Ph 2 Construction complete * Paydirt will provide Construction Schedule by late Sep

17 Project Updates 17 Monthly Updates on the Shipley s Dam Project are ed 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

18 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 (410) Alternate POC: Greg LeBlanc Same Address (410)

19 Questions or Comments? 19

20 Bureau of Utility Operations 24-Hour Emergency Water Services: (410) Billing Inquiries: (410) Bureau of Highways Northern District: (410) Central District: (410) Southern District: (410) Traffic Lights/Signs: (410) Bureau of Waste Management Services Bulk Trash Service/Curbside Collections: (410) Bureau of Engineering General Inquiries: (410)