US Bridges

Hilt Hungry Road over Cottonwood Creek

Fair

Siskiyou County, California · 1.4 MI South of Hilt RD · Structure no. 02C0164

Built
1933
92 years old, rebuilt 1989
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
23
2011 count
Owner
County
County Highway Agency

About this bridge

Hilt Hungry Road over Cottonwood Creek is a steel stringer/multi-beam or girder carrying Hilt Hungry Road over Cottonwood Creek in Siskiyou County, California. It was built in 1933 and reconstructed in 1989, so it is 92 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 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 23 vehicles a day, roughly 5% of them trucks, projected to reach 77 by 2042. The structure is 58 ft (17.7 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHilt Hungry Road
CrossesCottonwood Creek
Location1.4 MI South of Hilt RD
RouteCounty Highway 0
CountySiskiyou County
StateCalifornia
Coordinates41.97795, -122.63021
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2011)
Projected traffic77 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Hilt Hungry Road over Cottonwood Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1989.

What condition is Hilt Hungry Road over Cottonwood 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 Hilt Hungry Road over Cottonwood Creek carry?

About 23 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Hilt Hungry Road over Cottonwood Creek?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 15 ft wide.

Who owns Hilt Hungry Road over Cottonwood Creek?

It is owned by the County Highway Agency.