US Bridges

Detour Road over Crab Creek Overflow

Good

Lincoln County, Washington · 1.76 W JCT SR 231 · Structure no. 086018000000000

Built
1992
33 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

Detour Road over Crab Creek Overflow is a steel culvert carrying Detour Road over Crab Creek Overflow in Lincoln County, Washington. It was built in 1992, so it is 33 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 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 50 vehicles a day, roughly 40% of them trucks, projected to reach 75 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesDetour Road
CrossesCrab Creek Overflow
Location1.76 W JCT SR 231
RouteCounty Highway 63060
Coordinates47.63631, -117.97522
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic75 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Overflow built?

It was built in 1992, making it 33 years old in 2025.

What condition is Detour Road over Crab Creek Overflow 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 Overflow carry?

About 50 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is Detour Road over Crab Creek Overflow?

The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.4 m).

Who owns Detour Road over Crab Creek Overflow?

It is owned by the County Highway Agency.