First Street Tunnel

During a storm event, the First Street Tunnel will store more than 8 million gallons of combined sewer overflow in its 2,700-foot-long, four-shaft tunnel, preventing flooding in Bloomingdale and Le Droit Park.


Location

  • Washington, DC, USA

Client

  • DC Water

Project Status

  • Completed in 2016

Key Numbers

Length
.5 miles .5 miles
Shafts
4 4
Shaft depth
54 yards 54 yards
IMG-First_Street_Tunnel

First Street Tunnel tbm in Launch Shaft