National Park Service approves DC Water’s Soapstone Valley Park Sewer Rehabilitation Project

May 08, 2020

WASHINGTON, DC – The National Park Service (NPS) has completed an Environmental Assessment (EA) and approved DC Water’s proposed Soapstone Valley Park Sewer Rehabilitation Project. Soapstone Valley Park is managed by Rock Creek Park and is located southeast of the intersection of Connecticut Avenue NW and Albemarle Street NW, extending to Broad Branch Road NW.

DC Water has determined that the Soapstone Valley Park sanitary sewer system has exceeded its design life and is in need of rehabilitation. Through this project, DC Water will rehabilitate aging sewer infrastructure within Soapstone Valley Park while limiting disturbances to park resources.

The EA described a No Action Alternative and a Trenchless Alternative (DC Water’s Preferred Alternative) for the proposed project and identified and evaluated the impacts on natural and historic resources from implementing these alternatives. The NPS has selected the Trenchless Alternative for the project.

The proposed project will involve the following:

  • Clean, line, and repair approximately 6,200 linear feet of sanitary sewer pipe.
  • Reduce stream and groundwater infiltration and reduce potential for sewer overflows.
  • Protect exposed pipes and manholes along the creek.
  • Repair stormwater outfalls that are part of the Municipal Separate Storm Sewer System (MS4) outlet.

DC Water will move forward with final design and anticipates construction will start in the winter of 2021/2022.

To ensure public safety, sections of Soapstone Valley Park will be closed to visitors throughout the project.

The project will require the removal or trimming of several hundred trees in Soapstone Valley Park. DC Water and Rock Creek Park are committed to replanting trees after completion of the project. All off-trail areas impacted by the project will be closed for two years to allow growth of newly planted trees.

The NPS Acting Director, Region 1 - National Capital Area signed a Finding of No Significant Impact (FONSI) for the Soapstone Valley Park Sewer Rehabilitation Project EA on April 14, 2020. The FONSI and EA are available online at https://parkplanning.nps.gov/projectHome.cfm?projectID=47855.

Media Contacts:

​DC Water: Pamela Mooring, Pamela.Mooring@dcwater.com, 202-538-2773
National Park Service: Katie Liming, katelyn_liming@nps.gov, 703-399-4547

Latest News

Map of construction site
Construction Activity Notification - DC Clean Rivers - Potomac River Tunnel Project

DC Water is beginning critical ground stabilization work this week for the Potomac River Tunnel Project. The work ...

DC Water worker next to hydrant and list of bond ratings by agency

The District of Columbia Water and Sewer Authority (DC Water) has once again earned top credit ratings from all three major agencies—S&P Global Ratings, Moody’s Investors Service, and Fitch Ratings ...

Lead Free DC Lead Service Line Replacement construction work

When your block comes up for DC Water’s free lead service line replacement or you want to hire a contractor yourself, it’s important to know what to expect. We’ve got you covered at our next Lead Free ...

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Map of construction site
Major Ground Stabilization Work Begins Near Capital Crescent Trail
Construction Activity Notification - DC Clean Rivers - Potomac River Tunnel Project
Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting
Date
September 2, 2025
Tuesday, 10:00 AM