US Bridges

SR 124 over Coppei Creek

Good

Walla Walla County, Washington · 9.3 E JCT SR 125 · Structure no. 0014317A0000000

Built
1994
31 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
1,518
2023 count
Owner
State
State Highway Agency

About this bridge

SR 124 over Coppei Creek is a concrete continuous slab carrying SR 124 over Coppei Creek in Walla Walla County, Washington. It was built in 1994, so it is 31 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 1,518 vehicles a day, roughly 18% of them trucks, projected to reach 1,694 by 2039. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 124
CrossesCoppei Creek
Location9.3 E JCT SR 125
RouteState Highway 124
CountyWalla Walla County
StateWashington
Coordinates46.26914, -118.16756
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span36 ft (11 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,518 (2023)
Projected traffic1,694 by 2039
Trucks18%
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

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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 124 over Coppei Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is SR 124 over Coppei 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 February 2023.

How much traffic does SR 124 over Coppei Creek carry?

About 1,518 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is SR 124 over Coppei Creek?

The structure is 90 ft (27.4 m) long with a longest span of 36 ft (11 m) and a deck 35 ft wide.

Who owns SR 124 over Coppei Creek?

It is owned by the State Highway Agency.