US Bridges

Sagebrush Flats RD over Dry Wash

Good

Grant County, Washington · 0.1 E of Johnson RD · Structure no. 087312000000000

Built
1993
32 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
670
2020 count
Owner
County
County Highway Agency

About this bridge

Sagebrush Flats RD over Dry Wash is a steel culvert carrying Sagebrush Flats RD over Dry Wash in Grant County, Washington. It was built in 1993, so it is 32 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 670 vehicles a day, roughly 23% of them trucks, projected to reach 900 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSagebrush Flats RD
CrossesDry Wash
Location0.1 E of Johnson RD
RouteCounty Highway 93047
Coordinates47.3292, -119.59982
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2020)
Projected traffic900 by 2042
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed14.9 mi (24 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$329,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sagebrush Flats RD over Dry Wash built?

It was built in 1993, making it 32 years old in 2025.

What condition is Sagebrush Flats RD over Dry Wash 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 January 2024.

How much traffic does Sagebrush Flats RD over Dry Wash carry?

About 670 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is Sagebrush Flats RD over Dry Wash?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 31 ft wide.

Who owns Sagebrush Flats RD over Dry Wash?

It is owned by the County Highway Agency.