| State Route 61 | ||||||||||
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| Route information | ||||||||||
| Defined by S&HC § 361, 412, and 560 | ||||||||||
| Maintained by Caltrans | ||||||||||
| Length: | 6.970 mi[2] (11.217 km) Length of SR 112 is 1.782 mi (3 km) and length of SR 260 is 1.924 mi (3 km) |
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| Existed: | 1964[1] – present | |||||||||
| Major junctions | ||||||||||
| South end: | SR 185 in San Leandro | |||||||||
| North end: | I-880 in Oakland | |||||||||
| Highway system | ||||||||||
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State highways in California(list • pre-1964)
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State Route 61 (SR 61) is a California, United States, highway which runs through Alameda and along the Oakland International Airport. The western terminus is with State Route 260 at Webster Street in Alameda, and it runs along east Central Avenue and Encinal Avenue until reaching Broadway. It goes south along Broadway, then east along Otis Drive until crossing off the island of Alameda on the Bay Farm Island Bridge. It then follows Dolittle Drive near the Oakland International Airport until it reaches State Route 112 at Davis Street in San Leandro.
As legislatively defined, Route 61 extends as far north as Albany and as far south as the Dumbarton Bridge's east approach. Only the portion between Routes 260 and 112 is presently constructed; the unbuilt remainder of the route exists today either as open San Francisco Bay or wetlands. This route would likely have sat atop landfill; as public opinion shifted against filling in the bay, completing the remaining portions of Route 61 also fell out of favor. Route 87 is another highway once proposed to traverse present-day wetlands and open water.
Routes 112 and 260 are "hidden" routes that, despite having legal descriptions separate from Route 61, are currently signed as part of Route 61. Route 112 runs as Davis Street to State Route 185 (East 14th Street) in San Leandro. Route 260 goes to (but does not intersect with) Interstate 880 in Oakland through the Posey and Webster underwater tunnels.
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Route 61 is part of the California Freeway and Expressway System.[3]
The route begins at SR 185 in San Leandro. It then interchanges with Interstate 880. It then continues northward and enters the city of Oakland for a short while and crosses the San Leandro Bay via a drawbridge. It then winds its way northward through the city of Alameda. It then goes under the Oakland Estuary via the Posey and Webster Street Tubes; it then reenters the city of Oakland, where it meets its north end at 7th Street.
The entire route is in Alameda County.
| Location | Postmile [2][4][5] |
Destinations | Notes | |
|---|---|---|---|---|
| San Leandro | 1.78[N 1] | Callan Avenue | Continuation beyond SR 185 | |
| 1.78[N 1] | SR 185 (East 14th Street) | East end of unsigned SR 112 | ||
| 0.60[N 1] | I-880 (Nimitz Freeway) – Oakland, San Jose | Interchange | ||
| R0.00[N 1] 14.80 |
Davis Street, Doolittle Drive | West end of unsigned SR 112 | ||
| Oakland | 16.07 | 98th Avenue to I-880 – Oakland International Airport | Interchange | |
| Alameda | 18.55 | Bay Farm Island Bridge over San Leandro Bay | ||
| 19.44 | Otis Street, Broadway | |||
| 19.84 | Broadway, Encinal Avenue | |||
| 21.27 | Sherman Street, Central Avenue | |||
| 21.97 0.00[N 2] |
Central Avenue, Webster Street | South end of unsigned SR 260 | ||
| R0.86[N 2] | Wilver "Willie" Stargell Avenue | At-grade intersection; former southbound exit and entrance interchange; formerly Mariner Square Drive | ||
| R0.86[N 2] | Constitution Way, Marina Village Parkway | Interchange; southbound left exit and northbound entrance | ||
| R1.12[N 2] R1.20[N 2] |
Posey and Webster Street Tubes under Oakland Estuary | |||
| Oakland | ||||
| R1.92[N 2] | 7th Street to I-880 (Nimitz Freeway, to I-980 east) – San Francisco, San Jose, Jack London Square | North end of unsigned SR 260 | ||
| R1.92[N 2] | Harrison Street | Continuation beyond 7th Street | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus • Closed/Former • Incomplete access • Unopened |
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