US Bridges

4 RD SE over Wasteway

Good

Grant County, Washington · 4 SE 0.4 West of M SE · Structure no. 082540000000000

Built
1987
38 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
138
2022 count
Owner
County
County Highway Agency

About this bridge

4 RD SE over Wasteway is a prestressed concrete stringer/multi-beam or girder carrying 4 RD SE over Wasteway in Grant County, Washington. It was built in 1987, so it is 38 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 138 vehicles a day, roughly 35% of them trucks, projected to reach 250 by 2041. The structure is 34 ft (10.4 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries4 RD SE
CrossesWasteway
Location4 SE 0.4 West of M SE
RouteCounty Highway 21860
Coordinates47.02857, -119.22435
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating31.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138 (2022)
Projected traffic250 by 2041
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 4 RD SE over Wasteway built?

It was built in 1987, making it 38 years old in 2025.

What condition is 4 RD SE over 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 November 2024.

How much traffic does 4 RD SE over Wasteway carry?

About 138 vehicles per day (2022 count), of which roughly 35% are trucks.

How long is 4 RD SE over Wasteway?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 30 ft wide.

Who owns 4 RD SE over Wasteway?

It is owned by the County Highway Agency.