US Bridges

Gray RD over Cow Creek

Good

Adams County, Washington · 00.42 MI S SR26 · Structure no. 083560000000000

Built
1995
30 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
33
2018 count
Owner
County
County Highway Agency

About this bridge

Gray RD over Cow Creek is a prestressed concrete stringer/multi-beam or girder carrying Gray RD over Cow Creek in Adams 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33 vehicles a day, roughly 6% of them trucks, projected to reach 42 by 2039. The structure is 65 ft (19.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGray RD
CrossesCow Creek
Location00.42 MI S SR26
RouteCounty Highway 57372
Coordinates46.76556, -118.14703
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating50 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length65 ft (19.8 m)
Longest span64 ft (19.5 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2018)
Projected traffic42 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gray RD over Cow Creek built?

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

What condition is Gray RD over Cow 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 November 2023.

How much traffic does Gray RD over Cow Creek carry?

About 33 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Gray RD over Cow Creek?

The structure is 65 ft (19.8 m) long with a longest span of 64 ft (19.5 m) and a deck 30 ft wide.

Who owns Gray RD over Cow Creek?

It is owned by the County Highway Agency.