US Bridges

CO RD 43020 over Highline Canal

Good

Chelan County, Washington · 0.07 NW JCT Alice Ave · Structure no. 083588000000000

Built
1932
93 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Concrete
Length
46 ft
1 main span
Daily traffic
979
2020 count
Owner
County
County Highway Agency

About this bridge

CO RD 43020 over Highline Canal is a concrete tee beam carrying CO RD 43020 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 979 vehicles a day, roughly 7% of them trucks, projected to reach 1,046 by 2045. The structure is 46 ft (14.1 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCO RD 43020
CrossesHighline Canal
Location0.07 NW JCT Alice Ave
RouteCounty Highway 43020
Coordinates47.54528, -120.56639
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length46 ft (14.1 m)
Longest span44 ft (13.4 m)
Deck width31 ft (9.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic979 (2020)
Projected traffic1,046 by 2045
Trucks7%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$572,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 43020 over Highline Canal built?

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

What condition is CO RD 43020 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 43020 over Highline Canal carry?

About 979 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is CO RD 43020 over Highline Canal?

The structure is 46 ft (14.1 m) long with a longest span of 44 ft (13.4 m) and a deck 31 ft wide.

Who owns CO RD 43020 over Highline Canal?

It is owned by the County Highway Agency.