US Bridges

Lower Waitsburg RD over Spring Valley Creek

Good

Walla Walla County, Washington · 09.06N SR 12 · Structure no. 079928000000000

Built
1985
40 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
48 ft
1 main span
Daily traffic
242
2020 count
Owner
County
County Highway Agency

About this bridge

Lower Waitsburg RD over Spring Valley Creek is a concrete stringer/multi-beam or girder carrying Lower Waitsburg RD over Spring Valley Creek in Walla Walla County, Washington. It was built in 1985, so it is 40 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 242 vehicles a day, roughly 17% of them trucks, projected to reach 267 by 2040. The structure is 48 ft (14.6 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLower Waitsburg RD
CrossesSpring Valley Creek
Location09.06N SR 12
RouteCounty Highway 96110
Coordinates46.19556, -118.268
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 rating54.2 US tons
Inventory rating32.5 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2020)
Projected traffic267 by 2040
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Waitsburg RD over Spring Valley Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Lower Waitsburg RD over Spring Valley 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 September 2023.

How much traffic does Lower Waitsburg RD over Spring Valley Creek carry?

About 242 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Lower Waitsburg RD over Spring Valley Creek?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 34 ft wide.

Who owns Lower Waitsburg RD over Spring Valley Creek?

It is owned by the County Highway Agency.