US Bridges

Interstate 5 over Pacoima Wash

Fair

Los Angeles County, California · 07-LA-005-39.19-LA · Structure no. 53 1128

Built
1963
62 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
175 ft
3 main spans
Daily traffic
275,000
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over Pacoima Wash is a concrete continuous box beam or girders - multiple carrying Interstate 5 over Pacoima Wash in Los Angeles County, California. It was built in 1963, so it is 62 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 275,000 vehicles a day, roughly 8% of them trucks, projected to reach 297,944 by 2041. The structure is 175 ft (53.4 m) long and 180 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesInterstate 5
CrossesPacoima Wash
Location07-LA-005-39.19-LA
RouteInterstate 5
CountyLos Angeles County
StateCalifornia
Coordinates34.26477, -118.44176
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.4 m)
Longest span92 ft (27.9 m)
Deck width180 ft (54.9 m)
Roadway width174 ft (53 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275,000 (2018)
Projected traffic297,944 by 2041
Trucks8%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 5 over Pacoima Wash built?

It was built in 1963, making it 62 years old in 2025.

What condition is Interstate 5 over Pacoima Wash 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 December 2023.

How much traffic does Interstate 5 over Pacoima Wash carry?

About 275,000 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Interstate 5 over Pacoima Wash?

The structure is 175 ft (53.4 m) long with a longest span of 92 ft (27.9 m) and a deck 180 ft wide.

Who owns Interstate 5 over Pacoima Wash?

It is owned by the State Highway Agency.