US Bridges

SR 28 over Crab Creek

Good

Grant County, Washington · 15.9 E JCT SR 17 · Structure no. 0013359A0000000

Built
1988
37 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
622
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Crab Creek is a concrete continuous slab carrying SR 28 over Crab Creek in Grant County, Washington. It was built in 1988, so it is 37 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 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 622 vehicles a day, roughly 18% of them trucks, projected to reach 725 by 2039. The structure is 153 ft (46.6 m) long and 39 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR 28
CrossesCrab Creek
Location15.9 E JCT SR 17
RouteState Highway 28
Coordinates47.42067, -119.16524
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length153 ft (46.6 m)
Longest span58 ft (17.7 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 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
CrossesWaterway
Detour if closed16.2 mi (26 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$2.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over Crab Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR 28 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 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 153 ft (46.6 m) long with a longest span of 58 ft (17.7 m) and a deck 39 ft wide.

Who owns SR 28 over Crab Creek?

It is owned by the State Highway Agency.