US Bridges

SR 28 over Winchester Wasteway

Good

Grant County, Washington · 8.4 E JCT SR 281 · Structure no. 000000LN0000000

Built
1949
76 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
6,873
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Winchester Wasteway is a concrete tee beam carrying SR 28 over Winchester Wasteway in Grant County, Washington. It was built in 1949, so it is 76 years old, older 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 6,873 vehicles a day, roughly 9% of them trucks, projected to reach 7,157 by 2039. The structure is 34 ft (10.4 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 28
CrossesWinchester Wasteway
Location8.4 E JCT SR 281
RouteState Highway 28
CountyGrant County
StateWashington
Coordinates47.24933, -119.68494
Functional classRural Minor Arterial

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,873 (2023)
Projected traffic7,157 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$646,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over Winchester Wasteway built?

It was built in 1949, making it 76 years old in 2025.

What condition is SR 28 over Winchester 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 February 2024.

How much traffic does SR 28 over Winchester Wasteway carry?

About 6,873 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 28 over Winchester Wasteway?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 40 ft wide.

Who owns SR 28 over Winchester Wasteway?

It is owned by the State Highway Agency.