US Bridges

Martin Road over White Salmon River

Good

Klickitat County, Washington · 0.10 E JCT 9149 · Structure no. 087100000000000

Built
2003
22 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
114 ft
1 main span
Daily traffic
23
2023 count
Owner
County
County Highway Agency

About this bridge

Martin Road over White Salmon River is a prestressed concrete tee beam carrying Martin Road over White Salmon River in Klickitat County, Washington. It was built in 2003, so it is 22 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 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 23 vehicles a day, roughly 44% of them trucks, projected to reach 29 by 2045. The structure is 114 ft (34.7 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMartin Road
CrossesWhite Salmon River
Location0.10 E JCT 9149
RouteCounty Highway 17720
Coordinates46.01113, -121.52658
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.4 US tons
Inventory rating12.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length114 ft (34.7 m)
Longest span113 ft (34.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2023)
Projected traffic29 by 2045
Trucks44%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Martin Road over White Salmon River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Martin Road over White Salmon River 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 Martin Road over White Salmon River carry?

About 23 vehicles per day (2023 count), of which roughly 44% are trucks.

How long is Martin Road over White Salmon River?

The structure is 114 ft (34.7 m) long with a longest span of 113 ft (34.3 m) and a deck 26 ft wide.

Who owns Martin Road over White Salmon River?

It is owned by the County Highway Agency.