US Bridges

Kern River Cyn RD over Clear Creek

Fair

Kern County, California · At Miracle Hot Springs · Structure no. 50C0160

Built
1951
74 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
97 ft
5 main spans
Daily traffic
130
2007 count
Owner
County
County Highway Agency

About this bridge

Kern River Cyn RD over Clear Creek is a concrete continuous slab carrying Kern River Cyn RD over Clear Creek in Kern County, California. It was built in 1951, so it is 74 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 130 vehicles a day, roughly 1% of them trucks, projected to reach 192 by 2046. The structure is 97 ft (29.6 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesKern River Cyn RD
CrossesClear Creek
LocationAt Miracle Hot Springs
RouteCounty Highway 0
Coordinates35.57426, -118.5302
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating50.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span21 ft (6.4 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2007)
Projected traffic192 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Kern River Cyn RD over Clear Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is Kern River Cyn RD over Clear 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 November 2024.

How much traffic does Kern River Cyn RD over Clear Creek carry?

About 130 vehicles per day (2007 count), of which roughly 1% are trucks.

How long is Kern River Cyn RD over Clear Creek?

The structure is 97 ft (29.6 m) long with a longest span of 21 ft (6.4 m) and a deck 31 ft wide.

Who owns Kern River Cyn RD over Clear Creek?

It is owned by the County Highway Agency.