US Bridges

Brown RD over Dry Run

Good

Walla Walla County, Washington · 0.55 MI E of SR125 · Structure no. 089416000000000

Built
2012
13 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
47
2023 count
Owner
County
County Highway Agency

About this bridge

Brown RD over Dry Run is a steel culvert carrying Brown RD over Dry Run in Walla Walla County, Washington. It was built in 2012, so it is 13 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 47 vehicles a day, roughly 10% of them trucks, projected to reach 47 by 2043. The structure is 22 ft (6.8 m) long and 63 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesBrown RD
CrossesDry Run
Location0.55 MI E of SR125
RouteCounty Highway 65990
Coordinates46.23725, -118.35803
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length22 ft (6.8 m)
Longest span22 ft (6.8 m)
Deck width63 ft (19.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2023)
Projected traffic47 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brown RD over Dry Run built?

It was built in 2012, making it 13 years old in 2025.

What condition is Brown RD over Dry Run 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 2024.

How much traffic does Brown RD over Dry Run carry?

About 47 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Brown RD over Dry Run?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.8 m) and a deck 63 ft wide.

Who owns Brown RD over Dry Run?

It is owned by the County Highway Agency.