all new crossings
Cross Sound Tunnel- New York, Westchester County I-287 to Suffox County (Long Island). Proposed as a triple tube (3 lanes each outboard tube; middle tube for emergency access: modified proposal to increase center tube bore for additional lower level railway; added modication to also increase outboard tube bore for 3 lanes atop and 2 below) VITAL potential evacuation route. Although bored rather then cut and cover, it detours unneccessarily to the east of Oyster Bay, yet is apparantly politcally sabataged- aka the scandal of 'Emperors Club' client #9 NYS Gov Spitzer (with scant mention of any other 'emperor' clients!)
Cross Bay/Cross Brooklyn Tunnel- New Jersey I-78 to and through Brooklyn via the LIRR Bay Ridge to Conduit Boulvard- Upgraded Beltway Parkway Corridor. Combines and upgrades the railway only Cross Bay Tunnel with the cancelled Linear City concept. VITAL potential evacuation route
St Louis I-70 Bridge- vital though hardly requires eliminating grade seperation near Arch. St Louis needs to extend the depressed current I-70 alongside the stadium --requiring it to duck beneath the --- RR, which is why its now elevated
Urban Road Tunnels
Atlanta East Tunnel
Chicago Crosstown- not being proposed as a tunnel, but why not?
San Francisco 19th Street Corridor Tunnel
San Francisco Central Freeway-Octavia Boulevard Bypass Tunnel
San Francisco Embaradero Tunnel
Washington, D.C. Grand Arc-Eastern Star Tunnel- PEPCO I-95 & Downtown Tunnel Loop
Washington, D.C. Wisconsin Avenue Tunnel- Canal Road Duelization- yes let us not forget west of Rock Creek Park
Urban Freeway Reconstructions
New York City:
I-87 Deegan Expressway- expand to 8 lanes minimum (6 lanes as it crosses beneath I-95), each 12 feet wide, with the idea of relieving the I-95 Cross Bronx Expressway by encourging some shift to the Deegan, including for trucks to Hunts Point and Queens, as well as to the north, with expansion via the parallel abandoned railroad and strip of industrial land, with an expansion of the decking to entirely cover, with some additional capacity overall. Project would include a new waterfront cut and cover tunnel perhaps built incrimentally ala Cincinatti Fort Washington Way in the vicinity of Cromwell Avenue, with a new underground southbound ramp crossing beneath 238th Street (eliminating a major traffic backup), as well as a depressing and covering the parkland segment just before the Bronx-Westchester County line, meeting the existing 6 lane I-87, with the 4th lanes connecting to the service roads. Should be a part of the NYDOT project to reconstruct the Highbridge Interchange/Hamilton Bridge, extended to include a reopening of the 178th and 179th Street Tunnels for relieving the I-95 Trans Manhattan Expressway as passages for Manhattan west side bound traffic.
I-87's Plausible Continuation
Improve the Triborough ('RFK) Bridge Queens approach to interstate specifications with 12 foot lanes, 4 in each direction, with new retaining walls mimicking the 1930s design of the originals, in tandem with the other projects for so improving the entire I-278 Brooklyn-Queens Expressway, including a new 10 lane K Bridge, and new tunnels to augment capacity, such as this, and this, down to the Gowanus Expressway segment, crossing the new Cross Bay/ Cross Brooklyn Tunnel, and connecting with the Verrazano Narrows Bridge.
I-678 Lower Van Wyck Expressway - southward from the Kew Gardens Interchange: expand to 8-10 lanes, with portions decked. Eliminate Robert Moses apsostsy from basic math via his planning for fewer numbers of lanes from more.
New Jersey I-95 to the southwestern I-287 for long distance traffic to go through rural wealthier area to more efficently bypass I-95 through Manhattan and the Bronx, serving to relieve the heavily used Cross Bronx Expressway (where are the environmental justice types at Jesuit Fordham University New Urbanist movement on this?)