Four lanes of traffic (two northbound, two southbound) passed beneath the bridge's terminus, dead-ending at a non-existent Inner Loop and connected haphazardly to the northeastern side of the circle. An off-ramp delivered most northbound bridge traffic around the incomplete Barney Circle and under the bridge onto Interstate 695 westbound. A dangerous right-hand turn with no deceleration ramp left local traffic coming to a swift halt to access 17th Street SE — but not Kentucky Avenue SE, which now had to be accessed from local streets. K Street SE now curved north and east around the west side of Barney Circle, and traffic lights on the street caused even more backups both on K Street and on the Sousa Bridge. In 1975, federal, regional, and city transportation planners proposed an extension to I-695/Southeast Freeway to be called the "Barney Circle Freeway" to help alleviate the problems created by the failure to complete the Inner Loop. The freeway would extend I-695 past its existing terminus at Barney Circle and travel along the western bank of the Anacostia River (through Anacostia Park) to East Capitol Street and Robert F. Kennedy Memorial Stadium. A new bridge over the Anacostia River at Burnham Barrier would provide vehicles easy access to the Anacostia Freeway. The Barney Circle Freeway would have delinked Barney Circle from I-695, and reconstructed the on- and off-ramps to Sousa Bridge so that the bridge returned to its traditional function as a local bridge rather than a route for commuters to access the Anacostia Freeway and points east in the state of Maryland. The combined bridge and freeway project was ready for construction to begin in 1981, and its cost was estimated to be $93.5 million. But after protests from residents of Capitol Hill (who feared the Barney Circle Freeway would cause more traffic to flow into the area) as well as environmentalists, the District of Columbia agreed to reduce the number of lanes on the Barney Circle Freeway to two from four. The protests and legal and regulatory challenges to the proposed freeway did not end, however, and by 1992 the freeway's cost had ballooned to $160 million and it remained unbuilt. By 1993, although costs for the project had increased to $200 million, D.C. Mayor Sharon Pratt Kelly gave her approval for construction to begin. But construction was delayed yet again when the Sierra Club Legal Defense Fund, Anacostia Watershed Society, Committee of 100 on the Federal City, Citizens Committee to Stop It Again, D.C. Federation of Civic Associations, Friends of the Earth, Kingman Park Civic Association, the Barney Circle Neighborhood Watch, Urban Protectors, and American Rivers sued to force the city to scale back the freeway even further, add exit ramps at the junction of Pennsylvania Avenue SE and I-695, and alter traffic patterns (e.g., creating more one-way streets) on Capitol Hill.