US Bridges

Whalen over North Fork Castle Creek

Good

Shasta County, California · No Data Entered · Structure no. 051459000001084

Built
1976
49 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Whalen over North Fork Castle Creek is a concrete slab carrying Whalen over North Fork Castle Creek in Shasta County, California. It was built in 1976, so it is 49 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 45 ft (13.7 m) long and 25 ft wide.

CarriesWhalen
CrossesNorth Fork Castle Creek
LocationNo Data Entered
RouteFederal Lands Road 39N25
Coordinates41.16614, -122.37274
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating—
Inventory rating—

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 Whalen over North Fork Castle Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Whalen over North Fork Castle 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 May 2023.

How much traffic does Whalen over North Fork Castle Creek carry?

About 50 vehicles per day (latest count).

How long is Whalen over North Fork Castle Creek?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.3 m) and a deck 25 ft wide.

Who owns Whalen over North Fork Castle Creek?

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