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| SR 160 spans the Sacramento River from Grand Island to Branna Island on the vintage Isleton Bridge. The bascule bridge was built in 1923 and rehabilitated in 1953.1 01/18/03 |
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| SR 160 spans the Isleton Bridge between Grand Island Road on the west banks of the Sacramento River and Isleton Road on the east banks. 01/18/03 |
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| The narrow Isleton Bridge is just 17.7 feet wide. The movable span extends 624 feet across the Sacramento River.1 01/18/03 |
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| SR 160 exits the Isleton Bridge and resumes a southwesterly heading one mile to the city of Isleton. 01/18/03 |
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| Leaving Isleton, SR 160 (River Road) continues 21 miles to Antioch. Rio Vista is next via SR 12 west in five miles. Oakland alludes to SR 160's history as part of a lengthy northern extension of SR 24 to Sacramento and points beyond. 01/18/03 |
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| Southbound SR 160 meets SR 12 at this signalized intersection east of the Rio Vista Bridge. SR 12 leads east to Lodi and west to Fairfield (Interstate 80) and Santa Rosa. 01/18/03 |
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| SR 160 straddles the east banks of the Sacramento River to the southern tip of Brannan Island. Mount Diablo rises in the distance. 11/23/06 |
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| SR 160 crosses the Three Mile Slough, a tributary of the Sacramento River, on the Three Mile Slough Bridge, a vertical lift span dating back to 1949.2 11/23/06 |
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| The Three Mile Slough Bridge totals 749 feet in length with a roadway deck of 25.9 feet in width.2 11/23/06 |
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| The bulk of Sherman Island is devoted to agricultural interests. SR 160 initially runs along the east banks of Horseshoe Bend before bisecting the island southward toward Antioch. 11/23/06 |
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| SR 160 passes under Path 66, which brings power north-south on a single circuit 500kV power line. This line was fully completed in 1993 and was constructed by the Western Area Power Administration (WAPA). 11/23/06 |
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| Path 15 transmission lines also span Sherman Island, bringing power north-south on a two single circuit 500kV power lines that are owned by Pacific Gas and Electric (PG&E). 11/23/06 |
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| Another Pacific Gas and Electric (PG&E) transmission line passes over SR 160 as the 135 foot high Antioch (Nejedly) Bridge comes into view. 11/23/06 |
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| SR 160 transitions into a four lane freeway south from the Antioch Bridge between the cities of Oakley and Antioch. The first of two mainline interchanges connects the state route with Wilbur Avenue in 1.75 miles. 11/23/06 |
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| The Antioch Bridge carries southbound SR 160 over the San Joaquin River. This toll bridge only charges a fee for northbound travelers; it is free traveling south. 11/23/06 |
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| Opened in 1978, the Antioch Bridge is the only two lane toll bridge in the Bay Area. It is named for Senator Nejedly, who was state senator for this area between 1969 and 1980. In 1971, Senator Nejedly wrote Senate Bill SB-25, which was the legislative step needed to authorize the replacement of the old 1926 lift span with the current fixed high-level bridge between Antioch and Sherman Island. 11/23/06 |
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| The Nejedly Bridge is narrow with no emergency shoulders or breakdown lanes. A concrete barrier separates single lane traffic along the 38 foot wide deck. A gate is positioned here in case of accidents or inclement weather on the bridge. 11/23/06 |
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| The San Joaquin River combines with the Sacramento River just west of Sherman Island, and they enter San Pablo Bay via the Carquinez Straits. Without ever crossing the Sacramento River, SR 160 has paralleled the waterway on its eastern bank from Sacramento south to the Antioch Bridge. 11/23/06 |
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| After cresting midspan, SR 160 leaves Sacramento County and enters Contra Costa County. The Black Hills rise south of Antioch and Pittsburg. 11/23/06 |
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| The diamond interchange (Exit 1C) with Wilbur Avenue lies just beyond the northbound toll plaza for the Antioch Bridge. 11/23/06 |
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| Crossing over Wilbur Avenue, SR 160 enters the city of Antioch. Incorporated on February 6, 1872, Antioch sits at an elevation of 43 feet. The municipality grew by 20,000 residents between the 2000 Census and 2016 estimates to over 110,000. 11/23/06 |
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| Prior to 2016, SR 4 combined with the SR 160 freeway south from forthcoming Main Street (Exit 1A) and the city of Oakley Relocated onto a freeway/expressway bypass of Brentwood, SR 4 offers a high speed route south from Antioch through Brentwood. 11/23/06 |
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| The folded diamond interchange (Exit 1A) with former SR 4 was resigned on SR 160 for 18th Street west to Antioch and Main Street east to Downtown Oakley. 11/23/06 |
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| An end shield for SR 160 east previously stood at the entrance ramp bringing SR 4 westbound from Main Street. SR 160 was extended south to the expanded directional T interchange with the SR 4 freeway west to Pittsburg and Concord in 2016. 11/23/06 |
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| An interchange sequence sign previously outlined the succeeding three exits along SR 4 west through Antioch at the Oakley Road overpass. Bridge mounted signs were added here for SR 4 west to Martinez and Oakland and SR 4 east to Stockton. 11/23/06 |
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| Completion of the missing ramps at the systems interchange joining SR 4 and 160 occurred in December 2016. The original wye connecting for SR 4 west was built in 1971. 11/23/06 |
Page Updated 07-20-2018.
