US Bridges

GREER/2130 over Thorn Creek

Good

Whitman County, Washington · .08 S. Oakesdale RD · Structure no. 086375000000000

Built
1997
28 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
20
2021 count
Owner
County
County Highway Agency

About this bridge

GREER/2130 over Thorn Creek is a prestressed concrete slab carrying GREER/2130 over Thorn Creek in Whitman County, Washington. It was built in 1997, so it is 28 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 20 vehicles a day, roughly 40% of them trucks, projected to reach 21 by 2044. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesGREER/2130
CrossesThorn Creek
Location.08 S. Oakesdale RD
RouteCounty Highway 21300
Coordinates47.08627, -117.32681
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2021)
Projected traffic21 by 2044
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was GREER/2130 over Thorn Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is GREER/2130 over Thorn 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 November 2023.

How much traffic does GREER/2130 over Thorn Creek carry?

About 20 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is GREER/2130 over Thorn Creek?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns GREER/2130 over Thorn Creek?

It is owned by the County Highway Agency.