US Bridges

SR 28 over Crab Creek

Fair

Grant County, Washington · 13.2 E JCT SR 17 · Structure no. 0008639A0000000

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
220 ft
3 main spans
Daily traffic
622
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Crab Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 28 over Crab Creek in Grant County, Washington. It was built in 1969, so it is 56 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 220 ft (67.1 m) long and 39 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesSR 28
CrossesCrab Creek
Location13.2 E JCT SR 17
RouteState Highway 28
CountyGrant County
StateWashington
Coordinates47.43259, -119.21912
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
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 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 rating83 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length220 ft (67.1 m)
Longest span108 ft (32.9 m)
Deck width39 ft (12 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$4.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over Crab Creek built?

It was built in 1969, making it 56 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 220 ft (67.1 m) long with a longest span of 108 ft (32.9 m) and a deck 39 ft wide.

Who owns SR 28 over Crab Creek?

It is owned by the State Highway Agency.