US Bridges

Hornitos Road over Burns Creek

Fair

Mariposa County, California · 0.05 MI W Bear Valley RD · Structure no. 40C0015

Built
1956
69 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
65 ft
6 main spans
Daily traffic
560
2004 count
Owner
County
County Highway Agency

About this bridge

Hornitos Road over Burns Creek is a concrete continuous culvert carrying Hornitos Road over Burns Creek in Mariposa County, California. It was built in 1956, so it is 69 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 560 vehicles a day, roughly 4% of them trucks, projected to reach 1,506 by 2046. The structure is 65 ft (19.8 m) long and 28 ft wide. If it were closed, the detour would be 52.8 mi (85 km).

CarriesHornitos Road
CrossesBurns Creek
Location0.05 MI W Bear Valley RD
RouteCounty Highway 0
Coordinates37.49957, -120.23889
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2004)
Projected traffic1,506 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 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 Hornitos Road over Burns Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Hornitos Road over Burns 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 Hornitos Road over Burns Creek carry?

About 560 vehicles per day (2004 count), of which roughly 4% are trucks.

How long is Hornitos Road over Burns Creek?

The structure is 65 ft (19.8 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Hornitos Road over Burns Creek?

It is owned by the County Highway Agency.