California 160

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California 160

Routing

California 160 follows original California 24 between California 4 at Antioch and Business Loop I-80 (California 51/Capital City Freeway) in Sacramento, with the surface street (non-freeway) portion within Sacramento County relinquished to local control. This in effect created a route break between the segment parallel to the Sacramento River in the Delta region and the short North Sacramento Freeway segment.

Antioch Bridge

The Antioch Bridge, also known as the Senator John A. Nejedly Bridge, was built in 1978 and carries California 160 over the San Joaquin River and Stockton Deep Water Channel. The 1.8-mile bridge spans from Antioch-Oakley north to Sherman Island and replaces an earlier lift bridge (built 1926, removed from service 1978).

Highway Guide

California 4 east and California 160 north
After leaving the California 4 freeway, northbound California 160 begins its northbound journey concurrent with California 4 (until completion of the Bypass Road around Oakley and Brentwood). The first two exits along California 160 north are Exit 1A, Junction California 4/Main Street to Oakley and Exit 1B, Wilbur Avenue. After that, California 160 crosses the Antioch Bridge (toll) over the San Joaquin River and thence onto Sherman Island. Photo taken 07/18/09.
This view looks north along California 4 and California 160 toward the tall Antioch Bridge. Photo taken 07/18/09.
Exit 1A serves Main Street east into the city of Oakley ("A Place for Families in the Heart of the Delta") and 18th Street west into the city of Antioch (population 90,532 as of the 2000 Census; date of incorporation February 6, 1872; elevation 43 feet above sea level). Use Main Street east to Bethel Island and Brentwood. Photo taken 07/18/09.
The left two lanes continue north along California 160 to the Antioch Bridge (Nejedly Bridge) en route to Rio Vista and Sacramento. The right lane departs to California 4/Main Street east and 18th Street west. Photo taken 07/18/09.
The city of Oakley ("A Place for Families in the Heart of the Delta") was incorporated on July 1, 1999, sits at an elevation of 20 feet above sea level, and had a population of 25,619 as of the 2000 Census. Photo taken 07/18/09.
California 4 east and California 160 north split at Exit 1A. California 160 continues north to Sherman Island, Rio Vista, Walnut Grove, and Sacramento. California 4/Main Street turns east into downtown Oakley and thence east to Bethel Island, Brentwood, Byron, Discovery Bay, and Stockton. Photo taken 07/18/09.
Now on the offramp, traffic bound for California 4 east should prepare to turn right at the bottom of the ramp. All motorist services are available at this interchange. Photo taken 07/18/09.
California 160 north
Back on the mainline, the next exit along California 160 north (and final interchange before the toll plaza and Antioch Bridge crossing) is Exit 1B, Wilbur Avenue. Photo taken 12/31/04.
As we approach the two-lane Antioch Bridge, the brief California 160 freeway comes to an end. Photo taken 12/31/04.
All vehicles using the Antioch Bridge must pay a toll; it was $3 when this picture was taken and has since increased. Photo taken 12/31/04.
Northbound California 160 reaches Exit 1B, Wilbur Avenue. Photo taken 12/31/04.
The Antioch Bridge and toll plaza come into view as traffic from Wilbur Avenue joins California 160 north. Photo taken 12/31/04.
California 160 ascends the Antioch Bridge, a steel plate girder bridge that carries the now two-lane highway over the San Joaquin River. Opened in December 1978, the Antioch Bridge is officially designated as the Senator John A. Nejedly Bridge and has a length of approximately 1.8 miles (9,504 feet). It replaced an older lift bridge that had been in service at this location since January 1926 (and was purchased by the state in 1940). According to usage statistics posted on the official site for fiscal year 2010-2011, over two million vehicles paid the toll and crossed the bridge. At the northern touchdown, California 160 is in Sacramento County and on Sherman Island, which is wedged between the San Joaquin River to the south and the Sacramento River to the northwest. Photos taken 12/31/04.
At the north end of the Antioch Bridge, this mileage sign provides the distance to Rio Vista (12 miles), Isleton (16 miles), and Sacramento (54 miles) via California 160 north. Photo taken 12/31/04.
Now on Sherman Island within the California Delta, California 160 maintains just two lanes but sees significant traffic as part of the major trans-delta route. Three 500kV power lines can be seen from California 160. They rise high above the Sacramento River to make their crossing from the north onto Sherman Island, then proceed across the island toward another crossing over the San Joaquin River. These pictures show these power lines (connecting to both Path 15 and Path 66, two major north-south 500kV tranmission systems) as they approach California 160 on Sherman Island. Photos taken 12/31/04.
A California 160 north reassurance route marker is posted shortly thereafter. Photo taken 12/31/04.
Threemile Slough Bridge carries California 160 off of Sherman Island and onto Brannan Island. Ahead, California 160 will stay on the east bank of the Sacramento River as it proceeds north toward Rio Vista. Photo taken 12/31/04.
Northbound California 160 approaches the turnoff to Brannan Island State Recreation Area. Photo taken 12/31/04.
Under a canopy of dark storm clouds, northbound California 160 approaches its junction with California 12, a major east-west state highway. Use California 12 west to Rio Vista, Fairfield, Napa, Sonoma, and Santa Rosa. Use California 12 east to Interstate 5 and Lodi. California 160 will continue north toward Sacramento. Photo taken 12/31/04.
This view looks north along California 160 after the California 12 intersection. Photo taken by Trevor Carrier, 2002.
Northbound California 160 meets California 220 at Ryde in the California Delta. California 220 travels west via ferry to meet California 84 on the west bank of the Sacramento River. Photo taken by Trevor Carrier, 2002.
This California 160 north reassurance shield is posted in the California Delta, a region known for its prominence in California's water management. Located at the confluence of the San Joaquin and Sacramento Rivers as they drain into San Pablo Bay through the Carquinez Straits, the California Delta is the origination point for massive canals and aqueducts that carry water from the delta south toward farms and cities in Central and Southern California. Photo taken by Joel Windmiller, 03/29/01.
California 160 south
South of Sacramento, southbound California 160 as it passes through the delta region south of Courtland. Photo taken 01/18/03.
This view of a swing bridge crossing the Sacramento River is seen from southbound California 160 just north of Isleton. The next few pictures profile this bridge, which carries California 160 from the west bank to the east bank of the river. Photo taken 01/18/03.
Southbound California 160 crosses from the west bank back to the east bank of the Sacramento River here. Note the narrow lanes and old-style guardrails. Photo taken 01/18/03.

This part of the bridge swings from one side to the other to allow large ships to pass through. Instead of a drawbridge, which sees the road raised up above the water, this entire bridge turns on a pivot point so that it is parallel to the shore. This enables large vessels to pass by this bridge easily. Photo taken 01/18/03.
California 160 passes over the middle of the Isleton Bridge. Photo taken 01/18/03.
Continuing south, California 160 approaches Isleton in one mile. Photo taken 01/18/03.
This mileage sign along southbound provides the distance to Rio Vista. Rio Vista actually lies at the intersection of California 12 and California 84 on the west bank of the Sacramento River. California 160 ends in Anitoch, the second city on the mileage sign. Oakland is an interesting control city; the mileage is based on the use of California 160, California 4, California 242, and California 24 into Oakland. This control city is a throwback from when California 160 was part of a much longer California 24 that included all of the aforementioned routes as well as California 70 north of Sacramento. Photo taken 01/18/03.
Southbound California 160 meets California 12 at this signalized intersection. California 12 leads east to Lodi and west to Fairfield (Junction Interstate 80) and Santa Rosa. Photo taken 01/18/03.
Continuing south, the Sacramento River widens and becomes clearly visible from California 160. Ahead is the Three Mile Slough bridge over to Sherman Island. Photo taken 11/23/06.
California 160 crosses the Three Mile Slough, a tributary of the Sacramento River, at this lift bridge. Upon crossing the Slough, California 160 leaves the mainland and enters Sherman Island. The state highway remains on the island briefly, then crosses over the San Joaquin River into Antioch near Oakley. Photos taken 11/23/06.
Now on Sherman Island, California 160 stays close to the Sacramento River. The state highway will continue southwest toward Antioch. Photo taken 11/23/06.
Ahead, two major power transmission corridors pass over California 160. Paths 15 and 66, both of which are 500kV and travel between Southern California and Oregon, gain significant height to cross the Sacramento River and remain above the ship height limit. Photo taken 11/23/06.
California 160 first 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). Photo taken 11/23/06.
Immediately thereafter, California 160 passes under Path 15, which brings power north-south on a two single circuit 500kV power lines that are owned by Pacific Gas and Electric (PG&E). The tall Antioch (Nejedly) Bridge comes into view in the distance. Photo taken 11/23/06.
As California 160 passes under another Pacific Gas and Electric (PG&E) transmission line, the Antioch (Nejedly) Bridge becomes more prominent. Photo taken 11/23/06.
California 160 becomes a two-lane freeway (Super Two) midway through Sherman Island. The final three exits on California 160 south are Exit 1C, Wilbur Avenue; Exit 1B, Junction California 4/Main Street east and 18th Street west to Antioch; and Exit 1A, Junction California 4/California Delta Highway west to Concord. Photo taken 11/23/06.
The Antioch (Nejedly) Bridge carries southbound California 160 over the San Joaquin River. This toll bridge only charges a fee for northbound travelers; it is free traveling south. The San Joaquin River meets the Sacramento River just west of here, and they enter San Pablo Bay via the Carquinez Straits. California 160 has paralleled the Sacramento River on its eastern bank from Sacramento south to here, and California 160 does not ever cross over the Sacramento River. Photo taken 11/23/06.
Opened in 1978, the Antioch (Nejedly) 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 tall bridge between Antioch and Sherman Island. Photo taken 11/23/06.
Southbound California 160 ascends the Nejedly Bridge. This bridge is narrow, with no emergency shoulders or breakdown lanes. A gate is positioned here in case of accidents or inclement weather on the bridge. Photo taken 11/23/06.
California 160 ascends and crosses the San Joaquin River via the Antioch Bridge. After cresting midspan, California 160 leaves Sacramento County and enters Contra Costa County. At the bottom of the bridge is the toll plaza and the offramp to Exit 1C, Wilbur Avenue. Photos taken 11/23/06.
Southbound California 160 reaches Exit 1C, Wilbur Avenue. Note the toll booths facing northbound California 160. Photo taken 11/23/06.
California 160 the city of Antioch, which had a population of 90,532 as of the 2000 Census. Antioch was incorporated on February 6, 1872, and it sits at an elevation of 43 feet above sea level. Photo taken 11/23/06.
The next exit along southbound California 160 is Exit 1B, Junction California 4/Main Street to Oakley and 18th Street to Antioch. California 4 leads east to Stockton and west along the south shore of the Sacramento-San Joaquin Rivers, passing through Antioch, Pittsburg, and Concord en route to Martinez, Hercules, and Junction Interstate 80 near the Carquinez Bridge. Photo taken 11/23/06.
Motorists wishing to follow eastbound California 4 from southbound California 160 must use the right lane to exit. All other traffic is defaulted onto westbound California 4 (California Delta Highway). Photo taken 11/23/06.
Southbound California 160 reaches Exit 1B, Junction California 4/Main Street east and 18th Street west. Photo taken 11/23/06.
An END California 160 shield is posted on the transition ramp from southbound California 160 onto westbound California 4 (Exit 1A). However, with the eventual completion of the Highway 4 Bypass around Oakley and Brentwood, California 160 has been extended south to meet the bypass route. For now, California 4 and California 160 share alignment until the bypass is complete. Photo taken 11/23/06.
California 160 south and California 4 west
A California 4 west reassurance shield is posted after the Main Street interchange. However, this section is also California 160 due to the planned relocation of California 4 onto the new bypass. Photo taken 11/23/06.
This mileage sign provides the distance to the next three exits along California 4/California Delta Highway west: Exit 29, Hillcrest Avenue; Exit 28, A Street and Lone Tree Way; and Exit 26, Somersville Road and Auto Center Drive. Photo taken 11/23/06.
At this point, the new bypass around Oakley and Brentwood begins. This photo was taken before the bypass was completed; however, it is open for traffic now for most of the way. Through traffic for California 4 will eventually be able to take the bypass around both cities to Byron, Discovery Bay, and Stockton. It is now here that California 160 now ends. Through traffic turns right toward Concord and points west. Photo taken 11/23/06.
Scenes Pertaining to California 160
This freeway entrance shield assembly for California 4 and California 160 is posted in Antioch south of the Antioch (Nejedy) Bridge. Photos taken by Joel Windmiller, 06/19/01.
Located off California 160 on Sherman Island (between Three Mile Slough and the San Joaquin River), the Coronado Ferry has found a resting place here in the Sacramento River visible from California 160. This ship, known as the San Diego, was previously used in San Diego to ferry passengers and cars between Coronado and downtown San Diego. Built in 1931, the ferry was transported here in 1994. The San Diego briefly served in Washington State after ferry service ended in San Diego in 1969 (when the Coronado Bay Bridge opened). For more on this history of this vessel, see The San Diego (1931). Photo taken by 11/23/06.
As California 160 passes through Sherman Island, three single-circuit, 500kV power lines cross over the highway. In sequence from north to south, the first set of transmission lines to cross the highway and Sacramento River is Path 66, followed by the two single-circuit towers that constitute part of Path 15. Together, these three lines create the power backbone of California's power transmission system. They travel across California, taking a path from Oregon south toward Los Angeles, interconnecting most power generation facilities along the way. Photos taken by 11/23/06.
This trailblazer shield and destination mileage sign for California 160 in Walnut Grove is posted on westbound Sacramento County Route J-11/Walnut Grove Road west of Interstate 5. Turn left (south) to Isleton and Antioch or right (north) to Courtland and Sacramento. Photo taken by Joel Windmiller, 03/29/01.

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Page Updated January 16, 2012.