US Bridges

SR 160 SB over E 18th Street

Good

Contra Costa County, California · 04-CC-160-1.00 · Structure no. 28 0041L

Built
1971
54 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
162 ft
1 main span
Daily traffic
5,700
2018 count
Owner
State
State Highway Agency

About this bridge

SR 160 SB over E 18th Street is a prestressed concrete box beam or girders - multiple carrying SR 160 SB over E 18th Street 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 5,700 vehicles a day, roughly 14% of them trucks, projected to reach 8,793 by 2042. The structure is 162 ft (49.4 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 160 SB
CrossesE 18th Street
Location04-CC-160-1.00
RouteState Highway 160
Coordinates38.00491, -121.7539
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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span160 ft (48.8 m)
Deck width77 ft (23.6 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2018)
Projected traffic8,793 by 2042
Trucks14%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 160 SB over E 18th Street built?

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

What condition is SR 160 SB over E 18th Street 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 SR 160 SB over E 18th Street carry?

About 5,700 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is SR 160 SB over E 18th Street?

The structure is 162 ft (49.4 m) long with a longest span of 160 ft (48.8 m) and a deck 77 ft wide.

Who owns SR 160 SB over E 18th Street?

It is owned by the State Highway Agency.