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Contact Information:

 

General Services

113 Tewning Rd.
Williamsburg, VA 23188

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P: 757-259-4080
F: 757-258-1528

 

general.services@
jamescitycountyva.gov

 

Hours of Operation

 

7:30 - 4:30 p.m.
Monday-Friday

 

Project:

 

Clara Byrd Baker Stormwater Retrofits

July 2014

Scope of Work

This project consists of the renovation and retrofit of the stormwater treatment facilities at the Clara Byrd Baker Elementary School. The primary stormwater detention BMP collects runoff from a portion of the entrance drive and the entire school parking lot. In observing the BMP, it is evident that the BMP has become less effective functionally with significant sediment accumulations, trees on the embankment, evidence of ‘piping’ or burrowing animals on the embankment, sinkholes around stormwater structures and poorly implemented riser structure configuration. This project will correct the deficiencies in the current condition of the facility and make retrofits to enhance the efficiency of the BMP. Additionally three infiltration BMP’s were installed around the school to collect bus loop and roof runoff. The infiltration BMP’s have failed and may be backing up roof runoff . For replacement of these failed BMP’s, other LID retrofits, such as bioretention/rain gardens or dry swales will be considered to maximize stormwater treatment credits. The project design will focus on providing improved water quality benefits and contribute to meeting the County’s permit obligations for the Chesapeake Bay Total Maximum Daily Load (CBTMDL) reductions.

Status of Project

Whitman Requardt and Associates has developed a retrofit plan for the site to maximize function and pollutant removal. Next step is to develop final plans and apply for Stormwater Local Assistance Fund (SLAF) grant. Grant decision due January 2015.

Clara Byrd Baker Site
Clara Byrd Baker BMP

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for larger views.

Schedule

Civil Engineering Design   -  Preliminary design complete
Bidding Phase   - Spring 2015

Budget  -  $190K Approved

Whitman Requardt and Associates - $16,653
Contract Amount and percent completed -   $12,489 – 75 percent
AES Consulting Engineers - $5,592
Contract Amount and percent completed -   $5,592 – 100 percent

 

Milestones

  • Preliminary design complete

 

Next Steps

  • Complete final engineering design and construction plans.

 

Project Issues

  • The necessary work will need to be performed in an environmentally sensitive area.
  • Coordination with planned 2016 parking lot renovation.

 

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