US Bridges

U.S. Highway 101 over Feliz Creek

Fair

Mendocino County, California · 01-MEN-101-10.68 · Structure no. 10 0003

Built
1934
91 years old, rebuilt 2006
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
344 ft
9 main spans
Daily traffic
13,800
2009 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Feliz Creek is a steel stringer/multi-beam or girder carrying U.S. Highway 101 over Feliz Creek in Mendocino County, California. It was built in 1934 and reconstructed in 2006, so it is 91 years old, older 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 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 13,800 vehicles a day, roughly 11% of them trucks, projected to reach 22,546 by 2043. The structure is 344 ft (104.8 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesU.S. Highway 101
CrossesFeliz Creek
Location01-MEN-101-10.68
RouteU.S. Route 101
Coordinates38.96825, -123.11584
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length344 ft (104.8 m)
Longest span38 ft (11.6 m)
Deck width54 ft (16.6 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,800 (2009)
Projected traffic22,546 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. Highway 101 over Feliz Creek built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 2006.

What condition is U.S. Highway 101 over Feliz 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 April 2023.

How much traffic does U.S. Highway 101 over Feliz Creek carry?

About 13,800 vehicles per day (2009 count), of which roughly 11% are trucks.

How long is U.S. Highway 101 over Feliz Creek?

The structure is 344 ft (104.8 m) long with a longest span of 38 ft (11.6 m) and a deck 54 ft wide.

Who owns U.S. Highway 101 over Feliz Creek?

It is owned by the State Highway Agency.