US Bridges

Front ST over Cottonwood Creek

Good

Siskiyou County, California · 0.05 MI E Hornbrook RD · Structure no. 02C0275

Built
2006
19 years old
Condition
Good
inspected August 2022
Type
Slab
Prestressed Concrete
Length
113 ft
2 main spans
Daily traffic
127
2011 count
Owner
County
County Highway Agency

About this bridge

Front ST over Cottonwood Creek is a prestressed concrete slab carrying Front ST over Cottonwood Creek in Siskiyou County, California. It was built in 2006, so it is 19 years old, younger 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 127 vehicles a day, roughly 2% of them trucks, projected to reach 324 by 2044. The structure is 113 ft (34.4 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFront ST
CrossesCottonwood Creek
Location0.05 MI E Hornbrook RD
RouteCounty Highway 0
Coordinates41.91202, -122.56039
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 protection9 ExcellentNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length113 ft (34.4 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127 (2011)
Projected traffic324 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Front ST over Cottonwood Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Front ST over Cottonwood 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 August 2022.

How much traffic does Front ST over Cottonwood Creek carry?

About 127 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Front ST over Cottonwood Creek?

The structure is 113 ft (34.4 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns Front ST over Cottonwood Creek?

It is owned by the County Highway Agency.