US Bridges

SR 14 over Horsethief Canyon

Good

Klickitat County, Washington · 2.6 E JCT SR 197 · Structure no. 0001492B0000000

Built
1931
94 years old
Condition
Good
inspected March 2023
Type
Arch - Deck
Concrete
Length
92 ft
1 main span
Daily traffic
2,173
2023 count
Owner
State
State Highway Agency

About this bridge

SR 14 over Horsethief Canyon is a concrete arch - deck carrying SR 14 over Horsethief Canyon in Klickitat County, Washington. It was built in 1931, so it is 94 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 2,173 vehicles a day, roughly 16% of them trucks, projected to reach 3,040 by 2039. The structure is 92 ft (28 m) long and 27 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSR 14
CrossesHorsethief Canyon
Location2.6 E JCT SR 197
RouteState Highway 14
Coordinates45.64894, -121.10311
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 15
Structure length92 ft (28 m)
Longest span52 ft (15.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,173 (2023)
Projected traffic3,040 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 14 over Horsethief Canyon built?

It was built in 1931, making it 94 years old in 2025.

What condition is SR 14 over Horsethief Canyon 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 March 2023.

How much traffic does SR 14 over Horsethief Canyon carry?

About 2,173 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is SR 14 over Horsethief Canyon?

The structure is 92 ft (28 m) long with a longest span of 52 ft (15.8 m) and a deck 27 ft wide.

Who owns SR 14 over Horsethief Canyon?

It is owned by the State Highway Agency.