US Bridges

CO RD 43090 over Highline Canal

Good

Chelan County, Washington · 0.12SW JCT N. Dryden RD · Structure no. 083686000000000

Built
1932
93 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Concrete
Length
56 ft
1 main span
Daily traffic
95
2020 count
Owner
County
County Highway Agency

About this bridge

CO RD 43090 over Highline Canal is a concrete tee beam carrying CO RD 43090 over Highline Canal in Chelan County, Washington. It was built in 1932, so it is 93 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 95 vehicles a day, roughly 2% of them trucks, projected to reach 110 by 2045. The structure is 56 ft (17.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCO RD 43090
CrossesHighline Canal
Location0.12SW JCT N. Dryden RD
RouteCounty Highway 43010
Coordinates47.54556, -120.57028
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length56 ft (17.2 m)
Longest span54 ft (16.4 m)
Deck width31 ft (9.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2020)
Projected traffic110 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 43090 over Highline Canal built?

It was built in 1932, making it 93 years old in 2025.

What condition is CO RD 43090 over Highline Canal 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 2024.

How much traffic does CO RD 43090 over Highline Canal carry?

About 95 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is CO RD 43090 over Highline Canal?

The structure is 56 ft (17.2 m) long with a longest span of 54 ft (16.4 m) and a deck 31 ft wide.

Who owns CO RD 43090 over Highline Canal?

It is owned by the County Highway Agency.