US Bridges

Airport RD over Town Creek

Fair

Mendocino County, California · 0.3 MI S Howard ST · Structure no. 10C0179

Built
1994
31 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
155 ft
4 main spans
Daily traffic
142
2011 count
Owner
County
County Highway Agency

About this bridge

Airport RD over Town Creek is a concrete continuous slab carrying Airport RD over Town Creek in Mendocino County, California. It was built in 1994, so it is 31 years old, younger than the California average of 54.8 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 142 vehicles a day, roughly 1% of them trucks, projected to reach 348 by 2042. The structure is 155 ft (47.2 m) long and 44 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesAirport RD
CrossesTown Creek
Location0.3 MI S Howard ST
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.79041, -123.25887
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length155 ft (47.2 m)
Longest span39 ft (12 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic142 (2011)
Projected traffic348 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Town Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Airport RD over Town Creek 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 August 2024.

How much traffic does Airport RD over Town Creek carry?

About 142 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Airport RD over Town Creek?

The structure is 155 ft (47.2 m) long with a longest span of 39 ft (12 m) and a deck 44 ft wide.

Who owns Airport RD over Town Creek?

It is owned by the County Highway Agency.