US Bridges

Airport RD over Airforce RD

Fair

Snohomish County, Washington · 0.79 S JCT SR 526 · Structure no. 081863000000000

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
21,004
2021 count
Owner
County
County Highway Agency

About this bridge

Airport RD over Airforce RD is a concrete slab carrying Airport RD over Airforce RD in Snohomish County, Washington. It was built in 1967, so it is 58 years old, older 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 6 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 21,004 vehicles a day, roughly 12% of them trucks, projected to reach 30,000 by 2044. The structure is 31 ft (9.5 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAirport RD
CrossesAirforce RD
Location0.79 S JCT SR 526
RouteCounty Highway 91615
CountySnohomish County
StateWashington
Coordinates47.91046, -122.27169
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span29 ft (8.7 m)
Deck width83 ft (25.2 m)
Roadway width73 ft (22.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,004 (2021)
Projected traffic30,000 by 2044
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Airport RD over Airforce RD built?

It was built in 1967, making it 58 years old in 2025.

What condition is Airport RD over Airforce RD 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 2024.

How much traffic does Airport RD over Airforce RD carry?

About 21,004 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Airport RD over Airforce RD?

The structure is 31 ft (9.5 m) long with a longest span of 29 ft (8.7 m) and a deck 83 ft wide.

Who owns Airport RD over Airforce RD?

It is owned by the County Highway Agency.