US Bridges

SR 28 over Crab CR

Fair

Lincoln County, Washington · 1.3 E JCT SR 21 · Structure no. 0007348A0000000

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
182 ft
4 main spans
Daily traffic
669
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Crab CR is a concrete continuous slab carrying SR 28 over Crab CR in Lincoln County, Washington. It was built in 1964, so it is 61 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 669 vehicles a day, roughly 18% of them trucks, projected to reach 842 by 2039. The structure is 182 ft (55.5 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 28
CrossesCrab CR
Location1.3 E JCT SR 21
RouteState Highway 28
Coordinates47.33028, -118.66397
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 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 rating51 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span50 ft (15.2 m)
Deck width36 ft (10.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic669 (2023)
Projected traffic842 by 2039
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over Crab CR built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR 28 over Crab CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does SR 28 over Crab CR carry?

About 669 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is SR 28 over Crab CR?

The structure is 182 ft (55.5 m) long with a longest span of 50 ft (15.2 m) and a deck 36 ft wide.

Who owns SR 28 over Crab CR?

It is owned by the State Highway Agency.