US Bridges

Airport RD over Fagan Creek

Good

Napa County, California · 1.0 MI W of SR 12/29 · Structure no. 21C0047

Built
1930
95 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
3,991
2014 count
Owner
County
County Highway Agency

About this bridge

Airport RD over Fagan Creek is a concrete tee beam carrying Airport RD over Fagan Creek in Napa County, California. It was built in 1930, so it is 95 years old, older 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 3,991 vehicles a day, roughly 10% of them trucks, projected to reach 2,437 by 2044. The structure is 27 ft (8.1 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAirport RD
CrossesFagan Creek
Location1.0 MI W of SR 12/29
RouteCounty Highway 0
Coordinates38.21957, -122.27299
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 protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.1 m)
Longest span24 ft (7.4 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,991 (2014)
Projected traffic2,437 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Airport RD over Fagan Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Airport RD over Fagan Creek 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 RD over Fagan Creek carry?

About 3,991 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Airport RD over Fagan Creek?

The structure is 27 ft (8.1 m) long with a longest span of 24 ft (7.4 m) and a deck 38 ft wide.

Who owns Airport RD over Fagan Creek?

It is owned by the County Highway Agency.