US Bridges

SR 124 over County RD

Fair

Walla Walla County, Washington · 27.5 E JCT US 12 · Structure no. 0006854A0000000

Built
1962
63 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
1,511
2023 count
Owner
State
State Highway Agency

About this bridge

SR 124 over County RD is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 124 over County RD in Walla Walla County, Washington. It was built in 1962, so it is 63 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,511 vehicles a day, roughly 23% of them trucks, projected to reach 1,682 by 2039. The structure is 170 ft (51.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSR 124
CrossesCounty RD
Location27.5 E JCT US 12
RouteState Highway 124
CountyWalla Walla County
StateWashington
Coordinates46.28872, -118.48756
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span57 ft (17.4 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,511 (2023)
Projected traffic1,682 by 2039
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$2.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 124 over County RD built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR 124 over County RD in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does SR 124 over County RD carry?

About 1,511 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is SR 124 over County RD?

The structure is 170 ft (51.8 m) long with a longest span of 57 ft (17.4 m) and a deck 31 ft wide.

Who owns SR 124 over County RD?

It is owned by the State Highway Agency.