The Piney Branch Tunnel Project
Plumbing at 1550 Piney Branch Pkwy NW, Washington
DC Department of Buildings permit BCIV2600042: issued Jul 24, 2026 for plumbing work at 1550 Piney Branch Pkwy NW. The Piney Branch Tunnel Project, a major component of the DC Clean Rivers Project, will provide combined sewer overflow (CSO) control and flood relief in the northwest area of Washington D.C.. The comprehensive project has two (2) sites along the tunnel alignment CSO 049 site and Park Road site, and three (3) sites containing installation of CSO warning lights where construction work will occur at the ground surface Thompson Boathouse site, P Street site and Adams Mill Havard Street Zoo Entrance site.
- Permit number
- BCIV2600042
- Issued
- Type of work
- Plumbing
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- Not listed
- City's category
- Construction, civil plans
- City's status
- Permit issued
- Source
- DC Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 1550 Piney Branch Pkwy NW, and what's permitted nearby
DC Department of Buildings updated its data Oct 6, 2026. We checked it Oct 7, 02:48 UTC. See the city's official records (District of Columbia, CC BY 4.0).
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