Stormwater Projects

For general information on stormwater and the floodplain, please visit these stormwater informational webpages.
Please view the video about stormwater projects below or via YouTube.

Project Details

Coe Branch Daylighting

Create a new, natural stream channel with plantings to improve water quality and create an attractive feature in Howard Herman Stream Valley Park.  The existing underground pipes will be filled and graded over.  A new path will also be installed.  The project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: Combined with Pearson Project, $1.8 million, funded by EPA grant.

Status: Complete.

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Cherry Street Drainage Improvements

Solve the localized flooding issue adjacent to tennis court and detain stormwater to solve capacity issues downstream.  The project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: $488,000

Status: Complete.

Great Falls & Little Falls Water Detention Project

Detain and filter stormwater runoff from City Hall Campus to reduce flooding on neighboring downstream properties. The project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: $548,000

Status: Complete.

Harrison Branch Daylighting

Remove existing storm infrastructure between E. Jefferson St. and where Harrison Branch meets Four Mile Run and replace it with a naturalized stream channel.  This section of piping is in disrepair and was previously identified as a good candidate for daylighting in a 2005 City study.  This project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: $400,000 (planning level estimate)

Schedule: Survey in Spring 2016; Engineering Design in Fall 2016; Construction Starts in Winter 2016; Project Completion in Spring 2017.

Status: Soliciting scope of work from engineering firms.

Pearson Branch Stream Restoration

Provide a stabilized stream channel and banks through natural stream design. The project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: Combined with Coe BranchProject, $1.8 million, funded by EPA grant.

Status: Complete.

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W. Westmoreland Drainage Improvements

Solve the localized flooding issue at the end of W. Westmoreland Road by providing new drainage structures that tie into Tripp’s Run. Install permeable paver system and new rain garden in Cavalier Trail Park. The project will provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: $220,000 (engineer’s estimate).

Schedule: Survey is complete; Engineering Design is 95% complete; Construction to Start in June 2016; Project Completion due for October 2016.

Status: Finalizing design.

Wren Branch Drainage Improvements

Solve the localized flooding issue at the intersection of E. Columbia St. and Underwood St. by upsizing existing pipes behind the homes on Underwood St. and crossing E Columbia St. Staff is investigating a cooperative effort with Arlington County to include a restored outfall and stream in the scope of work. If this is possible the project would provide the City with credits toward Chesapeake Bay TMDL pollutant reduction goals.

Cost: $550,000 (engineer’s estimate; does not include stream work)

Schedule: Survey is complete; Preliminary drawings are complete; Construction Starts in June 2016; Project Completion in November 2016

Status: Awaiting design scope for possible outfall/stream restoration.