US Bridges

Ramp/Connector 14 over Sierra HWY

Fair

Los Angeles County, California · 07-LA-014-R54.50 · Structure no. 53 1004S

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
337 ft
4 main spans
Daily traffic
4,200
2017 count
Owner
State
State Highway Agency

About this bridge

Ramp/Connector 14 over Sierra HWY is a concrete continuous box beam or girders - multiple carrying Ramp/Connector 14 over Sierra HWY in Los Angeles County, California. It was built in 1965, so it is 60 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 5 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 4,200 vehicles a day, roughly 2% of them trucks, projected to reach 6,306 by 2041. The structure is 337 ft (102.7 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRamp/Connector 14
CrossesSierra HWY
Location07-LA-014-R54.50
RouteState Highway 14
CountyLos Angeles County
StateCalifornia
Coordinates34.50988, -118.1109
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length337 ft (102.7 m)
Longest span88 ft (26.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2017)
Projected traffic6,306 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Ramp/Connector 14 over Sierra HWY built?

It was built in 1965, making it 60 years old in 2025.

What condition is Ramp/Connector 14 over Sierra HWY 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 February 2023.

How much traffic does Ramp/Connector 14 over Sierra HWY carry?

About 4,200 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Ramp/Connector 14 over Sierra HWY?

The structure is 337 ft (102.7 m) long with a longest span of 88 ft (26.8 m) and a deck 34 ft wide.

Who owns Ramp/Connector 14 over Sierra HWY?

It is owned by the State Highway Agency.