US Bridges

Fir Gulch over Mid. Fork Cottonwood Cr.

Good

Shasta County, California · No Data Entered · Structure no. 051451000001002

Built
1981
44 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fir Gulch over Mid. Fork Cottonwood Cr. is a concrete slab carrying Fir Gulch over Mid. Fork Cottonwood Cr. in Shasta County, California. It was built in 1981, so it is 44 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 49 ft (14.9 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesFir Gulch
CrossesMid. Fork Cottonwood Cr.
LocationNo Data Entered
RouteFederal Lands Road 29N22
CountyShasta County
StateCalifornia
Coordinates40.35138, -122.96303
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation*: *
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating—
Inventory rating—

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length49 ft (14.9 m)
Longest span32 ft (9.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fir Gulch over Mid. Fork Cottonwood Cr. built?

It was built in 1981, making it 44 years old in 2025.

What condition is Fir Gulch over Mid. Fork Cottonwood Cr. 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 July 2023.

How much traffic does Fir Gulch over Mid. Fork Cottonwood Cr. carry?

About 50 vehicles per day (latest count).

How long is Fir Gulch over Mid. Fork Cottonwood Cr.?

The structure is 49 ft (14.9 m) long with a longest span of 32 ft (9.8 m) and a deck 16 ft wide.

Who owns Fir Gulch over Mid. Fork Cottonwood Cr.?

It is owned by the U.S. Forest Service.