US Bridges

Valley Grove RD over Dry Creek

Good

Walla Walla County, Washington · 1.30 W Lower Waitsburg RD · Structure no. 087078000000000

Built
2003
22 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
121 ft
1 main span
Daily traffic
146
2020 count
Owner
County
County Highway Agency

About this bridge

Valley Grove RD over Dry Creek is a prestressed concrete tee beam carrying Valley Grove RD over Dry Creek in Walla Walla County, Washington. It was built in 2003, so it is 22 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 146 vehicles a day, roughly 32% of them trucks, projected to reach 161 by 2040. The structure is 121 ft (37 m) long and 38 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesValley Grove RD
CrossesDry Creek
Location1.30 W Lower Waitsburg RD
RouteCounty Highway 96400
Coordinates46.15092, -118.34572
Functional classRural Minor 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 on dry land well above flood water elevations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating19.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length121 ft (37 m)
Longest span119 ft (36.3 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146 (2020)
Projected traffic161 by 2040
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$4.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Valley Grove RD over Dry Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Valley Grove RD over Dry 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 Valley Grove RD over Dry Creek carry?

About 146 vehicles per day (2020 count), of which roughly 32% are trucks.

How long is Valley Grove RD over Dry Creek?

The structure is 121 ft (37 m) long with a longest span of 119 ft (36.3 m) and a deck 38 ft wide.

Who owns Valley Grove RD over Dry Creek?

It is owned by the County Highway Agency.