US Bridges

SR 28 over Crab Creek

Fair

Grant County, Washington · 10.5 E JCT SR 17 · Structure no. 0002395A0000000

Built
1939
86 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
200 ft
5 main spans
Daily traffic
622
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Crab Creek is a concrete continuous tee beam carrying SR 28 over Crab Creek in Grant County, Washington. It was built in 1939, so it is 86 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 5 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 622 vehicles a day, roughly 18% of them trucks, projected to reach 725 by 2039. The structure is 200 ft (61 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 28
CrossesCrab Creek
Location10.5 E JCT SR 17
RouteState Highway 28
CountyGrant County
StateWashington
Coordinates47.42739, -119.27397
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length200 ft (61 m)
Longest span68 ft (20.7 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic622 (2023)
Projected traffic725 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$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over Crab Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is SR 28 over Crab Creek 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 Creek carry?

About 622 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is SR 28 over Crab Creek?

The structure is 200 ft (61 m) long with a longest span of 68 ft (20.7 m) and a deck 30 ft wide.

Who owns SR 28 over Crab Creek?

It is owned by the State Highway Agency.