US Bridges

Bartle Gap over Moosehead Creek

Good

Siskiyou County, California · No Data Entered · Structure no. 051461000001074

Built
1985
40 years old
Condition
Good
inspected May 2024
Type
Slab
Prestressed Concrete
Length
21 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Bartle Gap over Moosehead Creek is a prestressed concrete slab carrying Bartle Gap over Moosehead Creek in Siskiyou County, California. It was built in 1985, so it is 40 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 21 ft (6.4 m) long and 18 ft wide.

CarriesBartle Gap
CrossesMoosehead Creek
LocationNo Data Entered
RouteFederal Lands Road 39N05
Coordinates41.18249, -121.81788
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span18 ft (5.5 m)
Deck width18 ft (5.5 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 Bartle Gap over Moosehead Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Bartle Gap over Moosehead 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 2024.

How much traffic does Bartle Gap over Moosehead Creek carry?

About 50 vehicles per day (latest count).

How long is Bartle Gap over Moosehead Creek?

The structure is 21 ft (6.4 m) long with a longest span of 18 ft (5.5 m) and a deck 18 ft wide.

Who owns Bartle Gap over Moosehead Creek?

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