US Bridges

99 Frontage RD W over Bear Creek

Good

San Joaquin County, California · 0.4 MI N of 8 Mile RD · Structure no. 29C0068

Built
1964
61 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
165 ft
5 main spans
Daily traffic
3,737
2015 count
Owner
County
County Highway Agency

About this bridge

99 Frontage RD W over Bear Creek is a concrete continuous slab carrying 99 Frontage RD W over Bear Creek in San Joaquin County, California. It was built in 1964, so it is 61 years old, older 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 3,737 vehicles a day, roughly 15% of them trucks, projected to reach 8,197 by 2045. The structure is 165 ft (50.4 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries99 Frontage RD W
CrossesBear Creek
Location0.4 MI N of 8 Mile RD
RouteCounty Highway 0
Coordinates38.06025, -121.25986
Functional classRural Major Collector

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 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 evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length165 ft (50.4 m)
Longest span36 ft (11 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,737 (2015)
Projected traffic8,197 by 2045
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 99 Frontage RD W over Bear Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is 99 Frontage RD W over Bear Creek 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 September 2023.

How much traffic does 99 Frontage RD W over Bear Creek carry?

About 3,737 vehicles per day (2015 count), of which roughly 15% are trucks.

How long is 99 Frontage RD W over Bear Creek?

The structure is 165 ft (50.4 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.

Who owns 99 Frontage RD W over Bear Creek?

It is owned by the County Highway Agency.