US Bridges

SR 124 over US 12

Fair

Walla Walla County, Washington · JCT US 12 · Structure no. 0018033A0000000

Built
2012
13 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
238 ft
2 main spans
Daily traffic
6,798
2023 count
Owner
State
State Highway Agency

About this bridge

SR 124 over US 12 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 124 over US 12 in Walla Walla County, Washington. It was built in 2012, so it is 13 years old, younger 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 5 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 6,798 vehicles a day, roughly 11% of them trucks, projected to reach 8,052 by 2039. The structure is 238 ft (72.5 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR 124
CrossesUS 12
LocationJCT US 12
RouteState Highway 124
CountyWalla Walla County
StateWashington
Coordinates46.20844, -119.01267
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length238 ft (72.5 m)
Longest span128 ft (39 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,798 (2023)
Projected traffic8,052 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$4.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 124 over US 12 built?

It was built in 2012, making it 13 years old in 2025.

What condition is SR 124 over US 12 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 US 12 carry?

About 6,798 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 124 over US 12?

The structure is 238 ft (72.5 m) long with a longest span of 128 ft (39 m) and a deck 50 ft wide.

Who owns SR 124 over US 12?

It is owned by the State Highway Agency.