US Bridges

Bull Creek Road over Bull Creek

Fair

Mariposa County, California · 4.5 MI SE Old Yosemite RD · Structure no. 40C0043

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
101 ft
2 main spans
Daily traffic
100
2004 count
Owner
County
County Highway Agency

About this bridge

Bull Creek Road over Bull Creek is a steel continuous stringer/multi-beam or girder carrying Bull Creek Road over Bull Creek in Mariposa County, California. It was built in 1950, so it is 75 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 6 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 263 by 2042. The structure is 101 ft (30.8 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesBull Creek Road
CrossesBull Creek
Location4.5 MI SE Old Yosemite RD
RouteCounty Highway 0
CountyMariposa County
StateCalifornia
Coordinates37.70685, -119.98162
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating27.1 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length101 ft (30.8 m)
Longest span49 ft (14.9 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2004)
Projected traffic263 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Bull Creek Road over Bull Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Bull Creek Road over Bull 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 June 2024.

How much traffic does Bull Creek Road over Bull Creek carry?

About 100 vehicles per day (2004 count), of which roughly 3% are trucks.

How long is Bull Creek Road over Bull Creek?

The structure is 101 ft (30.8 m) long with a longest span of 49 ft (14.9 m) and a deck 14 ft wide.

Who owns Bull Creek Road over Bull Creek?

It is owned by the County Highway Agency.