US Bridges

Mountain House RD over Feliz Creek

Fair

Mendocino County, California · 0.1 MI SW SR101 Hopland · Structure no. 10C0002

Built
1991
34 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
280 ft
9 main spans
Daily traffic
1,272
2011 count
Owner
County
County Highway Agency

About this bridge

Mountain House RD over Feliz Creek is a concrete continuous slab carrying Mountain House RD over Feliz Creek in Mendocino County, California. It was built in 1991, so it is 34 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 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 1,272 vehicles a day, roughly 8% of them trucks, projected to reach 1,970 by 2042. The structure is 280 ft (85.3 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMountain House RD
CrossesFeliz Creek
Location0.1 MI SW SR101 Hopland
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates38.96866, -123.11771
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum 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 spans9
Design loadHS 20 + Mod
Structure length280 ft (85.3 m)
Longest span32 ft (9.8 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,272 (2011)
Projected traffic1,970 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Mountain House RD over Feliz Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mountain House RD 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 February 2024.

How much traffic does Mountain House RD over Feliz Creek carry?

About 1,272 vehicles per day (2011 count), of which roughly 8% are trucks.

How long is Mountain House RD over Feliz Creek?

The structure is 280 ft (85.3 m) long with a longest span of 32 ft (9.8 m) and a deck 44 ft wide.

Who owns Mountain House RD over Feliz Creek?

It is owned by the County Highway Agency.