Interstate 780
Route information | ||||
---|---|---|---|---|
Auxiliary route of I-80 | ||||
Maintained by Caltrans | ||||
Length | 6.5 mi[1] (10.5 km) | |||
Existed | 1973-1976–present | |||
History | State highway in 1935; Interstate (as I-680) in 1955; renumbered I-780 in 1973–76 | |||
NHS | Entire route | |||
Major junctions | ||||
West end | Curtola Pkwy & Lemon St in Vallejo | |||
I-80 in Vallejo | ||||
East end | I-680 in Benicia | |||
Location | ||||
Country | United States | |||
State | California | |||
Counties | Solano | |||
Highway system | ||||
|
Interstate 780 (I-780) is an east–west
Route description
The I-780 state-maintained
I-780 is part of the California Freeway and Expressway System[3] and, as with every Interstate Highway, is part of the National Highway System,[4] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration (FHWA).[5]
History
By 1914, a
On September 15, 1955, the
Location | Vallejo |
---|---|
Existed | 1964–1988 |
In the 1964 state highway renumbering, the legislative designation of the completed Vallejo–Benicia freeway was changed from LRN 74 to LRN 680, reflecting its Interstate designation. The short piece of nonfreeway in Vallejo, extending west from I-80 to SR 29, became State Route 141 (SR 141).[17] This route followed Benicia Road and Maine Street, the same alignment the state highway had always taken; it initially connected with I-780 via Lemon Street[18] but later followed Benicia Road from I-80 north of I-780. In 1975, a proposed (and never constructed) extension west and north to SR 37 east of the Napa River was added to LRN 141.[19][20] The route was to be the Waterfront Freeway, scaled down to a boulevard in 1974.[21][22]
The
Exit list
Mileage was measured from east-to-west based on the alignment of LRN 680 as it existed at that time. Exit numbers were still assigned the conventional west-to-east ascension.[26] The entire route is in Solano County.
Location | mi[26][27] | km | Exit[26] | Destinations | Notes |
---|---|---|---|---|---|
Vallejo | 6.75 | 10.86 | — | Curtola Parkway – Vallejo | Continuation beyond Lemon Street |
Lemon Street | At-grade intersection | ||||
6.70 | 10.78 | 1 | San Francisco | Signed as exits 1A (west) and 1B (east); west end of I-780; I-80 exit 30A | |
6.58 | 10.59 | 1C | Laurel Street | Westbound signage | |
Cedar Street | Eastbound signage | ||||
5.51 | 8.87 | 1D | Glen Cove Road | ||
Benicia | 4.28 | 6.89 | 3A | Columbus Parkway | Serves Benicia State Recreation Area |
3.51 | 5.65 | 3B | Military West | ||
3.32 | 5.34 | 4 | Southampton Road | ||
1.52 | 2.45 | 5 | East Second Street – Central Benicia | ||
1.09 | 1.75 | 6 | East Fifth Street | ||
0.00 | 0.00 | 7 | tri-stack interchange | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
See also
- California Roads portal
References
- ^ "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. December 31, 2021. Retrieved July 13, 2022.
- USGS topographic maps, accessed February 2008 via ACME Mapper
- ^ "Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
- ^ Federal Highway Administration (March 25, 2015). National Highway System: San Francisco–Oakland, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved July 23, 2017.
- ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
- ^ Grinnon, Edmund (May 15, 1914). "Road News from All Over The State". Oakland Tribune.
Vallejo to Benicia. paved road; to Napa, paved to county line, rough to one mile beyond city of Napa;
- ^ a b Official Automobile Blue Book, Volume Eight, 1917, pp. 146, 180
- ^ California State Assembly. "An act...relating to State highways". Fifty-first Session of the Legislature. Statutes of California. State of California. Ch. 274 p. 959, 281.: "Route 74 is from a point on Route 8 near the Napa Y to Cordelia via Vallejo and Benicia."
- ^ California State Assembly. "An act to amend section 374 of the Streets and Highways Code, relating to State Highway Route 74". Fifty-second Session of the Legislature. Statutes of California. State of California. Ch. 219 p. 515.: "Route 74 is from a point on Route 8 near the Napa Y to Cordelia via Vallejo and Benicia, including a connection from Vallejo to Route 7 near the Carquinez Bridge."
- ^ United States Geological Survey, Carquinez Strait (scale 1:62500), 1940
- ^ a b National Bridge Inventory database, 2006: the bridges on East Second Street north of Benicia are dated 1942 and 1944; the pedestrian bridge over Curtola Parkway is dated 1987
- ^ United States Geological Survey, Benicia (scale 1:24000), 1950
- General Location of National System of Interstate Highways, 1955: San Francisco
- ^ a b California Department of Transportation, State Highway Routes: Selected Information, 1994 with 1995 revisions, pp. 342, 348
- ^ a b California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
- ^ United States Geological Survey, Benicia (scale 1:24000), 1959
- ^ California State Assembly. "An act to add Section 253 and Article 3 (commencing with Section 300) to Chapter 2 of Division 1 of, and to repeal Section 253 and Article 3 (commencing with Section 300) of Chapter 2 of Division 1 of, the..." 1963 Session of the Legislature. Statutes of California. State of California. Ch. 385 p. 1182, 1189.: "Route 141 is from Route 80 to Route 29 in Vallejo." "Route 680 is from Route 280 in San Jose to Route 80 in Vallejo passing near Warm Springs, Mission San Jose, Scotts Corners and Sunol, and via Walnut Creek and Benicia."
- Division of Highways, San Francisco and Vicinity, 1963
- ^ California Department of Transportation, San Francisco and Vicinity, 1986
- ^ California State Assembly. "An act...relating to state bridges and highways..." 1975–1976 Session of the Legislature. Statutes of California. State of California. Ch. 1078 p. 2638.: "Route 141 is the westerly extension of Route 680 from Route 80 to Route 37."
- ^ Vallejo Times Herald, No Freeway for Waterfront Blvd, April 25, 1974
- ^ Vallejo Times Herald, Vallejo Approves Measure to Speed Waterfront Boulevard Construction, August 20, 1974
- ^ California State Assembly. "An act to amend Sections 143.2, 186, 253.1, 253.2, 253.4, 253.5, 253.6, 263.1, 263.5, 263.7, 311, 312, 333, 360, 374, 375, 378, 381, 384, 388, 411, 417, 422, 440, 441, 460, 506, 559, 563, 582, and 620 of, to add..." 1975–1976 Session of the Legislature. Statutes of California. State of California. Ch. 1354 p. 6178.: "Route 780 is from Route 680 at Benicia to Route 80 in Vallejo."
- ^ Metropolitan Transportation Commission, Rep. George Miller to Keynote Celebrations for Completion of New Benicia-Martinez Bridge[dead link], August 23, 2007
- ^ California State Assembly. "An act to add and repeal Sections...of the Government Code, to amend Sections...of, the Streets and Highways Code..." 1987–1988 Session of the Legislature. Statutes of California. State of California. Ch. 106 p. 443.
- ^ California Numbered Exit Uniform System. California Department of Transportation. March 17, 2020. Retrieved October 17, 2020.
- ^ California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on September 5, 2015. Retrieved June 30, 2015.
External links
- Caltrans: I-780 highway conditions
- Caltrans Traffic Conditions Map
- California Highway Patrol Traffic Incidents
- California Highways: Interstate 780
- California @ AARoads.com - I-780