US Bridges

6 RD SE over Lind Coulee Wasteway

Good

Grant County, Washington · 6 SE 1.8 East of U SE · Structure no. 079882000000000

Built
1991
34 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
114 ft
1 main span
Daily traffic
260
2020 count
Owner
County
County Highway Agency

About this bridge

6 RD SE over Lind Coulee Wasteway is a prestressed concrete tee beam carrying 6 RD SE over Lind Coulee Wasteway in Grant County, Washington. It was built in 1991, so it is 34 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 260 vehicles a day, roughly 39% of them trucks, projected to reach 420 by 2042. The structure is 114 ft (34.7 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries6 RD SE
CrossesLind Coulee Wasteway
Location6 SE 1.8 East of U SE
RouteCounty Highway 25500
Coordinates46.99889, -119.00846
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 inspectionDecember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span112 ft (34.1 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2020)
Projected traffic420 by 2042
Trucks39%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$4.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 6 RD SE over Lind Coulee Wasteway built?

It was built in 1991, making it 34 years old in 2025.

What condition is 6 RD SE over Lind Coulee Wasteway 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 December 2023.

How much traffic does 6 RD SE over Lind Coulee Wasteway carry?

About 260 vehicles per day (2020 count), of which roughly 39% are trucks.

How long is 6 RD SE over Lind Coulee Wasteway?

The structure is 114 ft (34.7 m) long with a longest span of 112 ft (34.1 m) and a deck 36 ft wide.

Who owns 6 RD SE over Lind Coulee Wasteway?

It is owned by the County Highway Agency.