US Bridges

Detour Road over Crab Creek

Good

Lincoln County, Washington · 1.44 E FAS L221 · Structure no. 084069000000000

Built
1900
125 years old, rebuilt 1991
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
135
2021 count
Owner
County
County Highway Agency

About this bridge

Detour Road over Crab Creek is a steel culvert carrying Detour Road over Crab Creek in Lincoln County, Washington. It was built in 1900 and reconstructed in 1991, so it is 125 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 135 vehicles a day, roughly 40% of them trucks, projected to reach 150 by 2042. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDetour Road
CrossesCrab Creek
Location1.44 E FAS L221
RouteCounty Highway 62440
Coordinates47.64314, -118.06778
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating71.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span9 ft (2.7 m)
Deck width26 ft (7.8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2021)
Projected traffic150 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Detour Road over Crab Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1991.

What condition is Detour Road over Crab 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 November 2023.

How much traffic does Detour Road over Crab Creek carry?

About 135 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is Detour Road over Crab Creek?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.7 m) and a deck 26 ft wide.

Who owns Detour Road over Crab Creek?

It is owned by the County Highway Agency.