US Bridges

Eight Mile RD over Bear Creek

Fair

San Joaquin County, California · 0.1 MI W/O SR 99 · Structure no. 29C0145

Built
1961
64 years old, rebuilt 1998
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
122 ft
4 main spans
Daily traffic
1,900
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eight Mile RD over Bear Creek is a concrete continuous slab carrying Eight Mile RD over Bear Creek in San Joaquin County, California. It was built in 1961 and reconstructed in 1998, so it is 64 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,900 vehicles a day, roughly 12% of them trucks, projected to reach 4,275 by 2045. The structure is 122 ft (37.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesEight Mile RD
CrossesBear Creek
Location0.1 MI W/O SR 99
RouteCounty Highway 0
Coordinates38.05736, -121.26208
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2015)
Projected traffic4,275 by 2045
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Eight Mile RD over Bear Creek built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1998.

What condition is Eight Mile RD over Bear Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Eight Mile RD over Bear Creek carry?

About 1,900 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is Eight Mile RD over Bear Creek?

The structure is 122 ft (37.2 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns Eight Mile RD over Bear Creek?

It is owned by the City or Municipal Highway Agency.