The Rock Creek Stem Sewers – Condition Assessment project involves reviewing existing internal data collected for the sewers within Rock Creek Park and the immediate surrounding area.  In addition to reviewing the existing data, field crews will walk along the 27.5 miles of sewer alignments to perform an external visual inspection to identify any defects that may not have been captured by the internal inspection.  A majority of these sewers are located within the National Park Service (NPS) property but there are limited instances where pipes are on various private properties.  Since the project is located on NPS land, DC Water will coordinate access with NPS as well as to notify embassies, other governmental agencies, and private property owners in the area.

Scope of Work

Phase 1

Perform desktop review of existing data collected for the sewers within the project area

Perform a field walk and external visual inspection of all pipes and manholes

Draft a report recommending pipes and manholes for further investigation, which could include closed-circuit television (CCTV) or smoke/dye testing

Phase 2

Conduct any additional field investigations, as needed

Draft a report recommending rehabilitation for the pipes and manholes in the project area





Review of existing data

July 10, 2020 – September 25, 2020

Field walk and external visual inspection

September 8, 2020 – October 30, 2020

Draft report recommending further investigation

November 6, 2020

Additional field investigations

November 9, 2020 – November 27, 2020

Draft rehabilitation recommendations report

February 15, 2022

WORK HOURS: Monday - Friday, 7 am - 5 pm

Important Information

Two (2) field crews will be used for this project consisting of two (2) individuals each (four total).  Each crew will inspect a different area of the project.  Field work will consist of walking the alignments to locate pipes and manholes.  Once located an inspection form will be filled out and pictures will be taken of the pipe / manhole and the site.

If any defects are seen in the field that warrant immediate repairs, field crews will immediately contact the DC Water Command Center at (202) 612-3400.

Potential equipment that may be used by the field crews include:

Manhole Pick


Manhole Probe



Project Location