US Bridges

Weaver Road over Westside Ditch

GoodPosted for load

Kittitas County, Washington · 00.79 W S Thorp HWY · Structure no. 084342000000000

Built
1993
32 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
23 ft
1 main span
Daily traffic
386
2022 count
Owner
County
County Highway Agency

About this bridge

Weaver Road over Westside Ditch is a concrete continuous slab carrying Weaver Road over Westside Ditch in Kittitas 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 386 vehicles a day, roughly 28% of them trucks, projected to reach 869 by 2038. The structure is 23 ft (7 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWeaver Road
CrossesWestside Ditch
Location00.79 W S Thorp HWY
RouteCounty Highway 54150
Coordinates47.00061, -120.6167
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating27.1 US tons
Inventory rating22.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2022)
Projected traffic869 by 2038
Trucks28%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Weaver Road over Westside Ditch built?

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

What condition is Weaver Road over Westside Ditch 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 October 2023.

How much traffic does Weaver Road over Westside Ditch carry?

About 386 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Weaver Road over Westside Ditch?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 31 ft wide.

Who owns Weaver Road over Westside Ditch?

It is owned by the County Highway Agency.