US Bridges

I-182 over N 4th Ave

Fair

Franklin County, Washington · 1.5 E JCT US 395 · Structure no. 0007410A0000000

Built
1964
61 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
163 ft
3 main spans
Daily traffic
29,585
2023 count
Owner
State
State Highway Agency

About this bridge

I-182 over N 4th Ave is a prestressed concrete stringer/multi-beam or girder carrying I-182 over N 4th Ave in Franklin County, Washington. It was built in 1964, so it is 61 years old, older than the Washington average of 49.8 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 29,585 vehicles a day, roughly 6% of them trucks, projected to reach 35,856 by 2039. The structure is 163 ft (49.7 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-182
CrossesN 4th Ave
Location1.5 E JCT US 395
RouteInterstate 182
CountyFranklin County
StateWashington
Coordinates46.24967, -119.09506
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span57 ft (17.4 m)
Deck width48 ft (14.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,585 (2023)
Projected traffic35,856 by 2039
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-182 over N 4th Ave built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-182 over N 4th Ave 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 March 2023.

How much traffic does I-182 over N 4th Ave carry?

About 29,585 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-182 over N 4th Ave?

The structure is 163 ft (49.7 m) long with a longest span of 57 ft (17.4 m) and a deck 48 ft wide.

Who owns I-182 over N 4th Ave?

It is owned by the State Highway Agency.