US Bridges

Coram Road over Cottonwood Creek

Fair

Shasta County, California · 1.75 MI E of Shasta Dam · Structure no. 06C0384

Built
2006
19 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel
Length
40 ft
1 main span
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

Coram Road over Cottonwood Creek is a steel truss - thru carrying Coram Road over Cottonwood Creek in Shasta 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 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 50 vehicles a day, roughly 3% of them trucks, projected to reach 157 by 2042. The structure is 40 ft (12.2 m) long and 11 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCoram Road
CrossesCottonwood Creek
Location1.75 MI E of Shasta Dam
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates40.70485, -122.45074
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating16.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width11 ft (3.4 m)
Roadway width10 ft (3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic157 by 2042
Trucks3%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Coram Road over Cottonwood Creek built?

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

What condition is Coram 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 July 2023.

How much traffic does Coram Road over Cottonwood Creek carry?

About 50 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Coram Road over Cottonwood Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 11 ft wide.

Who owns Coram Road over Cottonwood Creek?

It is owned by the County Highway Agency.