Ballston Pond Restoration

Location

Ballston Beaver Pond, Arlington, VA 22201  View Map

Google Map

Status

Construction

Ballston-Pond-View-from-South-Overall-small.jpg

 

Construction Activity Updates

December, 2021

Set up the Limits of Disturbance for the project and installed Erosion and Sediment Control.  Completed some vegetation clearing.

January, 2022

Set up the Maintenance of Traffic around the site and continued clearing vegetation. Set up the pump around to divert Lubber stream around the work area and installed a bridge for equipment.  Began removing accumulated sediment in the pond and grading the pond.

February, 2022

As sediment is removed, the contractor graded the area to create the new flow pathways through the pond and the deep and shallow wetland pools.  They also placed jute mesh for erosion control, and add topsoil and native seed mix where appropriate.

March, 2022

The contractor will be completing some invasive plant treatment and removal of invasive Bradford pear trees along the bicycle/pedestrian trail.  Following grading of the wetland pools, the contractor will start work on the deep water area, or forebay, where the stream enters the pond.  They also plan to start construction of the observation platform later this spring.

April, 2022

The contractor has completed much of the sediment removal and grading for the pond.  In April, they will be working on the deep water area, or forebay, where the stream enters the pond. They will installing weirs, or flow management structures, in the forebay area. They will remove the access bridge used by the equipment to access many areas of the pond.

May, 2022

There has been a delay in delivery of concrete articulated block that will be installed in the forebay (the upper part of the pond).  The project is briefly on hold until these materials are delivered.  

June, 2022

The concrete block is expected to arrive in mid-June so the work on the forebay area can be completed.

 

 

 

 

Project Background

The Ballston Pond was originally designed and constructed as a stormwater detention facility to collect and slow stormwater runoff from Interstate 66 when the highway was built. Over the years, the pond has been filling up with sediments deposited by stormwater runoff, which slows down when it reaches the pond. The Ballston Pond is no longer functioning as originally designed, and its water quality benefits are limited due to water flowing straight through the pond instead of taking a more circuitous route. In addition to invasive plants, trash is a continual issue.

Retrofitting the Ballston Pond is a high-priority project in the County’s Stormwater Management Program. This pond receives runoff from more than 300 acres of urban and suburban land, and represents the most feasible opportunity within Arlington for a larger regional stormwater management facility. Retrofitting the pond so it provides more water quality treatment helps the County comply with the municipal separate storm sewer system permit and contributes to restoring the Chesapeake Bay.

In fall of 2000, the pond was drained and the bottom surveyed to determine the pond’s remaining capacity. The survey data provided essential baseline information for a comprehensive study and redesign of the pond.

Project features include:

  • A weir at the top of the pond that controls the water level in the pond.
  • Trash control devices, allowing trash to be collected and removed.
  • A deep water area in the middle of the current pond, and multiple small channels to allow water to flow throughout the wetland.
  • Emergent, shrub and tree wetland vegetation areas.
  • Native plants and invasive plant control.
  • Wildlife components, including turtle basking stations.
  • A new boardwalk on the eastern side of the pond.
  • Interpretive signage.

Public Process

Date Location Meeting Materials
May 17, 2021 Climate Change, Energy and Environment Commission  Meeting information 
 February, 2021 Civic Federation   Meeting information 
January 30, 2019, 7:30 PM Central Library, 1015 N. Quincy St.

 

Bluemont Room (2nd Floor)

Nov. 13, 2012 NRECA Building, 4301 Wilson Blvd.
Oct. 27, 2011 NRECA Building, 4301 Wilson Blvd.
Oct. 18, 2011 Ballston Pond Restoration Advisory Group Meeting
June 13, 2011 NRECA Building, 4301 Wilson Blvd.
June 8, 2011 Ballston Pond Restoration Advisory Group Meeting
Feb. 24, 2011 NRECA Building, 4301 Wilson Blvd.
Jan. 22, 2011 Ballston Pond Restoration Advisory Group Meeting