US Bridges

Rosamond Blvd over State Route 14

Fair

Kern County, California · 09-KER-014-R3.02 · Structure no. 50 0336

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
236 ft
2 main spans
Daily traffic
20,000
2014 count
Owner
State
State Highway Agency

About this bridge

Rosamond Blvd over State Route 14 is a concrete continuous box beam or girders - multiple carrying Rosamond Blvd over State Route 14 in Kern County, California. It was built in 1968, so it is 57 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 20,000 vehicles a day, roughly 9% of them trucks, projected to reach 26,018 by 2041. The structure is 236 ft (71.9 m) long and 73 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesRosamond Blvd
CrossesState Route 14
Location09-KER-014-R3.02
RouteCounty Highway 0
CountyKern County
StateCalifornia
Coordinates34.86416, -118.17209
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span127 ft (38.7 m)
Deck width73 ft (22.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2014)
Projected traffic26,018 by 2041
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rosamond Blvd over State Route 14 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Rosamond Blvd over State Route 14 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 April 2023.

How much traffic does Rosamond Blvd over State Route 14 carry?

About 20,000 vehicles per day (2014 count), of which roughly 9% are trucks.

How long is Rosamond Blvd over State Route 14?

The structure is 236 ft (71.9 m) long with a longest span of 127 ft (38.7 m) and a deck 73 ft wide.

Who owns Rosamond Blvd over State Route 14?

It is owned by the State Highway Agency.