US Bridges

Airport Road over State Route 44

Good

Shasta County, California · 02-SHA-044-R3.63 · Structure no. 06 0182

Built
1972
53 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
166 ft
1 main span
Daily traffic
9,500
1998 count
Owner
State
State Highway Agency

About this bridge

Airport Road over State Route 44 is a prestressed concrete box beam or girders - multiple carrying Airport Road over State Route 44 in Shasta County, California. It was built in 1972, so it is 53 years old, younger than the California average of 54.8 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 9,500 vehicles a day, roughly 8% of them trucks, projected to reach 11,391 by 2041. The structure is 166 ft (50.7 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesAirport Road
CrossesState Route 44
Location02-SHA-044-R3.63
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates40.56133, -122.30051
Functional classUrban Other Principal Arterial

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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length166 ft (50.7 m)
Longest span164 ft (50.1 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (1998)
Projected traffic11,391 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Airport Road over State Route 44 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Airport Road over State Route 44 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 May 2024.

How much traffic does Airport Road over State Route 44 carry?

About 9,500 vehicles per day (1998 count), of which roughly 8% are trucks.

How long is Airport Road over State Route 44?

The structure is 166 ft (50.7 m) long with a longest span of 164 ft (50.1 m) and a deck 42 ft wide.

Who owns Airport Road over State Route 44?

It is owned by the State Highway Agency.