US Bridges

SR 127 over Camas Prairie RR

Good

Whitman County, Washington · 0.5 N Garfield CO · Structure no. 000000OR0000000

Built
1969
56 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
257 ft
3 main spans
Daily traffic
868
2023 count
Owner
State
State Highway Agency

About this bridge

SR 127 over Camas Prairie RR is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 127 over Camas Prairie RR in Whitman 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 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 868 vehicles a day, roughly 29% of them trucks, projected to reach 907 by 2039. The structure is 257 ft (78.3 m) long and 43 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesSR 127
CrossesCamas Prairie RR
Location0.5 N Garfield CO
RouteState Highway 127
Coordinates46.63215, -117.80535
Functional classRural Principal Arterial - Other

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.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span84 ft (25.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic868 (2023)
Projected traffic907 by 2039
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemYes

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$5.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 127 over Camas Prairie RR built?

It was built in 1969, making it 56 years old in 2025.

What condition is SR 127 over Camas Prairie RR 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 March 2022.

How much traffic does SR 127 over Camas Prairie RR carry?

About 868 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is SR 127 over Camas Prairie RR?

The structure is 257 ft (78.3 m) long with a longest span of 84 ft (25.6 m) and a deck 43 ft wide.

Who owns SR 127 over Camas Prairie RR?

It is owned by the State Highway Agency.