4th & l street, n.w.
Volkert Engineering created the design for two urban roadways in Washington DC - 4th Street NW between New York Avenue and Massachusetts Avenue and L Street NW between 4th Street NW and 5th Street NW; including the redesign for the National Park Service (NPS) Reservation 178.
L Street NW was converted from a one-way street into a two-way street with parallel parking lanes. The work included new traffic signalization at the busy intersection of 5th Street, L Street, and New York Avenue and the complete transformation of the intersection’s NPS triangle park thanks to the closure of an access ramp which had divided the park in two. This part of the project became a three-way public private partnership between DDOT, NPS, and the private developer who paid for the infrastructure costs.
4th Street NW was transformed from a partial one-way roadway into a continuous two-way roadway with parallel parking on both sides. The drainage system was completely retrofitted to meet the required regulations, and intersections were upgraded to provide adequate turning movements.
Coordination with multiple large-scale private developments in the area included resolving conflicting schedules, designs, and/or construction issues. In multiple occasions, Volkert Engineering had to meet with developers and architects to coordinate public right-of-way treatments, access points, and utility relocations.
Services Provided: Site Survey, Geotechnical Study, Civil Engineering, Lighting Design, Roadway Design, Traffic Management, Stormwater Management, Utility Relocation, Landscape Architecture, Public Outreach