US Bridges

SR 14 over SP S RY

Good

Skamania County, Washington · 40.0 E Clark CO · Structure no. 0001915A0000000

Built
1934
91 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
158 ft
3 main spans
Daily traffic
3,783
2023 count
Owner
State
State Highway Agency

About this bridge

SR 14 over SP S RY is a concrete continuous tee beam carrying SR 14 over SP S RY in Skamania County, Washington. It was built in 1934, so it is 91 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 3,783 vehicles a day, roughly 12% of them trucks, projected to reach 4,559 by 2039. The structure is 158 ft (48.2 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSR 14
CrossesSP S RY
Location40.0 E Clark CO
RouteState Highway 14
Coordinates45.72464, -121.55817
Functional classRural Principal Arterial - Other

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length158 ft (48.2 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,783 (2023)
Projected traffic4,559 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 14 over SP S RY built?

It was built in 1934, making it 91 years old in 2025.

What condition is SR 14 over SP S RY 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 July 2023.

How much traffic does SR 14 over SP S RY carry?

About 3,783 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 14 over SP S RY?

The structure is 158 ft (48.2 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns SR 14 over SP S RY?

It is owned by the State Highway Agency.