US Bridges

Third ST (d) over Dry Creek

Good

Walla Walla County, Washington · 00.09W Upper Dry CR · Structure no. 086174000000000

Built
1995
30 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
304
2021 count
Owner
County
County Highway Agency

About this bridge

Third ST (d) over Dry Creek is a prestressed concrete stringer/multi-beam or girder carrying Third ST (d) over Dry Creek in Walla Walla County, Washington. It was built in 1995, so it is 30 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 304 vehicles a day, roughly 5% of them trucks, projected to reach 549 by 2043. The structure is 63 ft (19.1 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesThird ST (d)
CrossesDry Creek
Location00.09W Upper Dry CR
RouteCounty Highway 74410
Coordinates46.13967, -118.15011
Functional classRural Local

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 evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length63 ft (19.1 m)
Longest span60 ft (18.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2021)
Projected traffic549 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Third ST (d) over Dry Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Third ST (d) 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 Third ST (d) over Dry Creek carry?

About 304 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Third ST (d) over Dry Creek?

The structure is 63 ft (19.1 m) long with a longest span of 60 ft (18.2 m) and a deck 35 ft wide.

Who owns Third ST (d) over Dry Creek?

It is owned by the County Highway Agency.