US Bridges

SR 26 over Pcc RR

Poor

Whitman County, Washington · 6.0 E Adams CO · Structure no. 0008153A0000000

Built
1967
58 years old
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
183 ft
3 main spans
Daily traffic
1,555
2023 count
Owner
State
State Highway Agency

About this bridge

SR 26 over Pcc RR is a prestressed concrete stringer/multi-beam or girder carrying SR 26 over Pcc RR in Whitman County, Washington. It was built in 1967, so it is 58 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,555 vehicles a day, roughly 22% of them trucks, projected to reach 2,018 by 2039. The structure is 183 ft (55.8 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSR 26
CrossesPcc RR
Location6.0 E Adams CO
RouteState Highway 26
CountyWhitman County
StateWashington
Coordinates46.78527, -117.93569
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length183 ft (55.8 m)
Longest span61 ft (18.7 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,555 (2023)
Projected traffic2,018 by 2039
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 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$3.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 26 over Pcc RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR 26 over Pcc RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does SR 26 over Pcc RR carry?

About 1,555 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is SR 26 over Pcc RR?

The structure is 183 ft (55.8 m) long with a longest span of 61 ft (18.7 m) and a deck 37 ft wide.

Who owns SR 26 over Pcc RR?

It is owned by the State Highway Agency.