US Bridges

SR 124 over UPRR

Good

Walla Walla County, Washington · 5.3 E JCT US 12 · Structure no. 0018971A0000000

Built
2017
8 years old
Condition
Good
inspected March 2024
Type
Girder and Floorbeam System
Concrete
Length
150 ft
1 main span
Daily traffic
3,327
2023 count
Owner
State
State Highway Agency

About this bridge

SR 124 over UPRR is a concrete girder and floorbeam system carrying SR 124 over UPRR in Walla Walla County, Washington. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,327 vehicles a day, roughly 16% of them trucks, projected to reach 4,024 by 2039. The structure is 150 ft (45.7 m) long and 39 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesSR 124
CrossesUPRR
Location5.3 E JCT US 12
RouteState Highway 124
Coordinates46.21483, -118.90664
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating48.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length150 ft (45.7 m)
Longest span145 ft (44.2 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,327 (2023)
Projected traffic4,024 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed18 mi (29 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 124 over UPRR built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR 124 over UPRR 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 March 2024.

How much traffic does SR 124 over UPRR carry?

About 3,327 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is SR 124 over UPRR?

The structure is 150 ft (45.7 m) long with a longest span of 145 ft (44.2 m) and a deck 39 ft wide.

Who owns SR 124 over UPRR?

It is owned by the State Highway Agency.