US Bridges

SR 138 (avenue D) over State Route 14

Fair

Los Angeles County, California · 07-LA-138-36.85 · Structure no. 53 1835

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
238 ft
2 main spans
Daily traffic
3,800
2019 count
Owner
State
State Highway Agency

About this bridge

SR 138 (avenue D) over State Route 14 is a concrete continuous box beam or girders - multiple carrying SR 138 (avenue D) over State Route 14 in Los Angeles 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 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 3,800 vehicles a day, roughly 14% of them trucks, projected to reach 7,600 by 2042. The structure is 238 ft (72.5 m) long and 71 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 138 (avenue D)
CrossesState Route 14
Location07-LA-138-36.85
RouteState Highway 138
CountyLos Angeles County
StateCalifornia
Coordinates34.77685, -118.17103
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length238 ft (72.5 m)
Longest span126 ft (38.4 m)
Deck width71 ft (21.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2019)
Projected traffic7,600 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 SR 138 (avenue D) over State Route 14 built?

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

What condition is SR 138 (avenue D) 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 October 2024.

How much traffic does SR 138 (avenue D) over State Route 14 carry?

About 3,800 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is SR 138 (avenue D) over State Route 14?

The structure is 238 ft (72.5 m) long with a longest span of 126 ft (38.4 m) and a deck 71 ft wide.

Who owns SR 138 (avenue D) over State Route 14?

It is owned by the State Highway Agency.