US Bridges

S160-W4 Connector over UP RR

Good

Contra Costa County, California · 04-CC-160-0.25 · Structure no. 28 0074F

Built
1971
54 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
259 ft
3 main spans
Daily traffic
11,950
2018 count
Owner
State
State Highway Agency

About this bridge

S160-W4 Connector over UP RR is a concrete continuous box beam or girders - multiple carrying S160-W4 Connector over UP RR in Contra Costa County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,950 vehicles a day, roughly 8% of them trucks, projected to reach 27,750 by 2042. The structure is 259 ft (78.9 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS160-W4 Connector
CrossesUP RR
Location04-CC-160-0.25
RouteState Highway 160
CountyContra Costa County
StateCalifornia
Coordinates37.99255, -121.75793
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length259 ft (78.9 m)
Longest span97 ft (29.6 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,950 (2018)
Projected traffic27,750 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S160-W4 Connector over UP RR built?

It was built in 1971, making it 54 years old in 2025.

What condition is S160-W4 Connector over UP RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does S160-W4 Connector over UP RR carry?

About 11,950 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is S160-W4 Connector over UP RR?

The structure is 259 ft (78.9 m) long with a longest span of 97 ft (29.6 m) and a deck 41 ft wide.

Who owns S160-W4 Connector over UP RR?

It is owned by the State Highway Agency.