US Bridges

I-82 over Flash Flood Channel

Good

Benton County, Washington · 7.0 E JCT I-182 · Structure no. 002000520000000

Built
1983
42 years old
Condition
Good
inspected February 2022
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
7,174
2023 count
Owner
State
State Highway Agency

About this bridge

I-82 over Flash Flood Channel is a steel culvert carrying I-82 over Flash Flood Channel in Benton County, Washington. It was built in 1983, so it is 42 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,174 vehicles a day, roughly 22% of them trucks, projected to reach 8,704 by 2039. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesI-82
CrossesFlash Flood Channel
Location7.0 E JCT I-182
RouteInterstate 82
CountyBenton County
StateWashington
Coordinates46.19494, -119.26989
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,174 (2023)
Projected traffic8,704 by 2039
Trucks22%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-82 over Flash Flood Channel built?

It was built in 1983, making it 42 years old in 2025.

What condition is I-82 over Flash Flood Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2022.

How much traffic does I-82 over Flash Flood Channel carry?

About 7,174 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I-82 over Flash Flood Channel?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns I-82 over Flash Flood Channel?

It is owned by the State Highway Agency.