US Bridges

Coyote Hgts. 21170 over Crab Creek

Good

Lincoln County, Washington · 0.16 N FASB220 · Structure no. 081359000000000

Built
1973
52 years old
Condition
Good
inspected January 2023
Type
Tee Beam
Concrete
Length
50 ft
1 main span
Daily traffic
53
2020 count
Owner
County
County Highway Agency

About this bridge

Coyote Hgts. 21170 over Crab Creek is a concrete tee beam carrying Coyote Hgts. 21170 over Crab Creek in Lincoln County, Washington. It was built in 1973, so it is 52 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 53 vehicles a day, roughly 4% of them trucks, projected to reach 100 by 2040. The structure is 50 ft (15.2 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCoyote Hgts. 21170
CrossesCrab Creek
Location0.16 N FASB220
RouteCounty Highway 21170
Coordinates47.32167, -118.60667
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2020)
Projected traffic100 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coyote Hgts. 21170 over Crab Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Coyote Hgts. 21170 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 January 2023.

How much traffic does Coyote Hgts. 21170 over Crab Creek carry?

About 53 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Coyote Hgts. 21170 over Crab Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns Coyote Hgts. 21170 over Crab Creek?

It is owned by the County Highway Agency.