James River Elementary School

Stream Restoration & Bioretention - July 2017


Scope of Work


This project, located in the headwaters of Grices Run on James River Elementary School property, consists of the stabilization of an intermittent stream channel to reduce erosion and the installation of a bioretention stormwater facility to improve stormwater runoff water quality. This project will stabilize the eroding stream and the bioretention facility will replace outdated infrastructure. The stream stabilization and bioretention facility will provide significant water quality benefits and contribute to meeting the County’s permit obligations for the Chesapeake Bay Total Maximum Daily Load (CBTMDL) requirements.

Schedule


  • Civil Engineering Design: Completed
  • Construction - Start June 20, 2016
  • Substantially complete - Sept. 2, 2016

Budget


  • Estimated Budget - $400,000
  • Stantec Consulting Services - $99,490
  • Contract payments and percent completed - $74,187.49 - 74.6%
  • Henry S. Branscome, LLC - $405,770.91
  • Contract payments and percent completed - $405,770.91 - 100%
  • Additional services - $9,690

Milestones


  • Wetlands delineation performed.
  • Preliminary design complete and submitted for site plan review.
  • Conduct field delineation of wetlands and waters of the United States.
  • Final site plan approval obtained Feb. 5, 2016.
  • Wetlands permit received.
  • Contract awarded to Henry S. Branscome, LLC – May 24, 2016.
  • Construction begun – June 20, 2016.
  • Work substantially complete – Sept. 2, 2016.
  • Record drawings approved - June 26, 2017.
  • Punch list items completed.

Next Steps


  • Submission for SLAF reimbursement.

Project Issues


  • Work must be conducted in the summer when school is not in session.
  • Disposal of a large amount of excess soil.