US Bridges

Airport Road over Cascade Canal

Fair

Kittitas County, Washington · 0.20 North Bender Road · Structure no. 087379000000000

Built
2006
19 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
4,772
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Airport Road over Cascade Canal is a concrete slab carrying Airport Road over Cascade Canal in Kittitas County, Washington. It was built in 2006, so it is 19 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,772 vehicles a day, roughly 12% of them trucks, projected to reach 7,091 by 2039. The structure is 22 ft (6.7 m) long and 61 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAirport Road
CrossesCascade Canal
Location0.20 North Bender Road
RouteCity Street 94026
CountyKittitas County
StateWashington
Coordinates47.02425, -120.53971
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width61 ft (18.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,772 (2019)
Projected traffic7,091 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$314,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Airport Road over Cascade Canal built?

It was built in 2006, making it 19 years old in 2025.

What condition is Airport Road over Cascade Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Airport Road over Cascade Canal carry?

About 4,772 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is Airport Road over Cascade Canal?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 61 ft wide.

Who owns Airport Road over Cascade Canal?

It is owned by the City or Municipal Highway Agency.