US Bridges

U Road SE over S. Warden Coulee

Good

Grant County, Washington · U SE .6 S of 10 SE · Structure no. 083788000000000

Built
1960
65 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,373
2021 count
Owner
County
County Highway Agency

About this bridge

U Road SE over S. Warden Coulee is a concrete culvert carrying U Road SE over S. Warden Coulee in Grant County, Washington. It was built in 1960, so it is 65 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,373 vehicles a day, roughly 29% of them trucks, projected to reach 3,000 by 2043. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesU Road SE
CrossesS. Warden Coulee
LocationU SE .6 S of 10 SE
RouteCounty Highway 92035
Coordinates46.93168, -119.04654
Functional classRural Major Collector

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.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,373 (2021)
Projected traffic3,000 by 2043
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was U Road SE over S. Warden Coulee built?

It was built in 1960, making it 65 years old in 2025.

What condition is U Road SE over S. Warden Coulee 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 November 2024.

How much traffic does U Road SE over S. Warden Coulee carry?

About 1,373 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is U Road SE over S. Warden Coulee?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 28 ft wide.

Who owns U Road SE over S. Warden Coulee?

It is owned by the County Highway Agency.