US Bridges

Sen.Eugene Prince over Cottonwood Creek

GoodPosted for load

Whitman County, Washington · 0.07 MI SE Sunset · Structure no. 080092000000000

Built
1975
50 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
101
2021 count
Owner
County
County Highway Agency

About this bridge

Sen.Eugene Prince over Cottonwood Creek is a prestressed concrete stringer/multi-beam or girder carrying Sen.Eugene Prince over Cottonwood Creek in Whitman County, Washington. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 101 vehicles a day, roughly 25% of them trucks, projected to reach 103 by 2044. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesSen.Eugene Prince
CrossesCottonwood Creek
Location0.07 MI SE Sunset
RouteCounty Highway 33700
CountyWhitman County
StateWashington
Coordinates47.09413, -117.403
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (6.9 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2021)
Projected traffic103 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Sen.Eugene Prince over Cottonwood Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Sen.Eugene Prince over Cottonwood Creek 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 December 2023.

How much traffic does Sen.Eugene Prince over Cottonwood Creek carry?

About 101 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is Sen.Eugene Prince over Cottonwood Creek?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (6.9 m) and a deck 28 ft wide.

Who owns Sen.Eugene Prince over Cottonwood Creek?

It is owned by the County Highway Agency.