US Bridges

SR 27 over Pine Creek

Good

Whitman County, Washington · 4.1 N JCT SR 271 · Structure no. 0017850B0000000

Built
2010
15 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
390
2023 count
Owner
State
State Highway Agency

About this bridge

SR 27 over Pine Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 27 over Pine Creek in Whitman County, Washington. It was built in 2010, so it is 15 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 390 vehicles a day, roughly 11% of them trucks, projected to reach 528 by 2039. The structure is 125 ft (38.1 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 27
CrossesPine Creek
Location4.1 N JCT SR 271
RouteState Highway 27
Coordinates47.17769, -117.19147
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating99 US tons
Inventory rating58 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length125 ft (38.1 m)
Longest span125 ft (38.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2023)
Projected traffic528 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 27 over Pine Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR 27 over Pine 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 July 2024.

How much traffic does SR 27 over Pine Creek carry?

About 390 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 27 over Pine Creek?

The structure is 125 ft (38.1 m) long with a longest span of 125 ft (38.1 m) and a deck 35 ft wide.

Who owns SR 27 over Pine Creek?

It is owned by the State Highway Agency.