US Bridges

Oklahoma Road over Little White Salmon Rive

Good

Skamania County, Washington · 1.36 N Willard · Structure no. 083510000000000

Built
1962
63 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
167
2024 count
Owner
County
County Highway Agency

About this bridge

Oklahoma Road over Little White Salmon Rive is a prestressed concrete box beam or girders - multiple carrying Oklahoma Road over Little White Salmon Rive in Skamania County, Washington. It was built in 1962, so it is 63 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 167 vehicles a day, roughly 35% of them trucks, projected to reach 211 by 2042. The structure is 130 ft (39.5 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesOklahoma Road
CrossesLittle White Salmon Rive
Location1.36 N Willard
RouteCounty Highway 30860
Coordinates45.79778, -121.63889
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1 (+1 approach)
Design loadH 20
Structure length130 ft (39.5 m)
Longest span81 ft (24.7 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic167 (2024)
Projected traffic211 by 2042
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Oklahoma Road over Little White Salmon Rive built?

It was built in 1962, making it 63 years old in 2025.

What condition is Oklahoma Road over Little White Salmon Rive 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 September 2024.

How much traffic does Oklahoma Road over Little White Salmon Rive carry?

About 167 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is Oklahoma Road over Little White Salmon Rive?

The structure is 130 ft (39.5 m) long with a longest span of 81 ft (24.7 m) and a deck 28 ft wide.

Who owns Oklahoma Road over Little White Salmon Rive?

It is owned by the County Highway Agency.