US Bridges

I-182 over Argent Road

Fair

Franklin County, Washington · 4.8 E Benton CO · Structure no. 0012236G0000000

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
146 ft
1 main span
Daily traffic
30,320
2023 count
Owner
State
State Highway Agency

About this bridge

I-182 over Argent Road is a prestressed concrete stringer/multi-beam or girder carrying I-182 over Argent Road in Franklin County, Washington. It was built in 1984, so it is 41 years old, younger 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 30,320 vehicles a day, roughly 6% of them trucks, projected to reach 37,583 by 2039. The structure is 146 ft (44.5 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-182
CrossesArgent Road
Location4.8 E Benton CO
RouteInterstate 182
CountyFranklin County
StateWashington
Coordinates46.25706, -119.15408
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span146 ft (44.5 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,320 (2023)
Projected traffic37,583 by 2039
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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$3.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-182 over Argent Road built?

It was built in 1984, making it 41 years old in 2025.

What condition is I-182 over Argent Road 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 Argent Road carry?

About 30,320 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-182 over Argent Road?

The structure is 146 ft (44.5 m) long with a longest span of 146 ft (44.5 m) and a deck 55 ft wide.

Who owns I-182 over Argent Road?

It is owned by the State Highway Agency.