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Construction Program
U.S. Route 1 Interchange
Section Design Consultant: HNTB
The U.S. Route 1 Interchange project involves the complete reconstruction of the existing interchange to include replacement of all ramp movements, addition of ramps connections to future HOV lanes, ramp connection to Eisenhower Valley at Mill Road, retaining walls, sound barrier walls, extensive ground improvement program along north and south limits of the mainline roadways, electrical transmission tower relocation, bridge replacement and widening of the I-95/I-495 mainline roadway section from 0.91 miles west of U.S. Route 1 to the west abutment of the Potomac River Bridge at Royal Street. Improvements along U.S. Route 1 will include roadway widening and reconstruction, bridge reconstruction, intersection improvements and utility relocations from Franklin Street on the north to Huntington Avenue to the south. Environmental mitigation improvements include the Urban Deck over the I-95/I-495 mainline at Washington Street, improvements to Jones Point Park and creation of "onsite" wetlands at several locations adjacent to the interchange.
The U.S. Route 1 Interchange project includes typical types of construction elements found in a modern highway interchange reconstruction project under traffic. Approximate quantities of specific construction elements for this interchange include the following:
The reconstruction of the U.S. Route 1 Interchange will have unavoidable impacts to aquatic resources of the Cameron Run stream, Hunting Creek and the Potomac River. On-site wetland mitigation construction at several adjacent locations is anticipated to be included in the project scope. Widening of the I-95/I-495 Mainline at Washington Street will displace 1- Hunting Towers high-rise residential unit, 3- Hunting Terrace low-rise residential units and 2 office buildings. Relocating the existing residences of the Hunting Towers / Terrace is a schedule critical item.
