US Bridges

Kaiser Road over Crab Creek

Good

Lincoln County, Washington · 0.03 N FAS L220 · Structure no. 081349000000000

Built
1971
54 years old
Condition
Good
inspected January 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
9
2021 count
Owner
County
County Highway Agency

About this bridge

Kaiser Road over Crab Creek is a prestressed concrete slab carrying Kaiser Road over Crab Creek in Lincoln County, Washington. It was built in 1971, so it is 54 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 9 vehicles a day, roughly 5% of them trucks, projected to reach 15 by 2042. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesKaiser Road
CrossesCrab Creek
Location0.03 N FAS L220
RouteCounty Highway 61830
Coordinates47.49767, -117.97222
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9 (2021)
Projected traffic15 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaiser Road over Crab Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Kaiser 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 January 2024.

How much traffic does Kaiser Road over Crab Creek carry?

About 9 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Kaiser Road over Crab Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 16 ft wide.

Who owns Kaiser Road over Crab Creek?

It is owned by the County Highway Agency.