US Bridges

Auto Tour Road over Canal Turnout

Fair

Siskiyou County, California · SW Corner Unit 4A · Structure no. 000011663-00255

Built
1963
62 years old, rebuilt 1970
Condition
Fair
inspected October 2022
Type
Culvert
Steel
Length
22 ft
4 main spans
Daily traffic
50
2022 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Auto Tour Road over Canal Turnout is a steel culvert carrying Auto Tour Road over Canal Turnout in Siskiyou County, California. It was built in 1963 and reconstructed in 1970, so it is 62 years old, older 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 6 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, projected to reach 60 by 2042. The structure is 22 ft (6.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesAuto Tour Road
CrossesCanal Turnout
LocationSW Corner Unit 4A
RouteFederal Lands Road 0
CountySiskiyou County
StateCalifornia
Coordinates41.976, -121.7135
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating20 US tons
Inventory rating12 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span4 ft (1.2 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic50 (2022)
Projected traffic60 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 Auto Tour Road over Canal Turnout built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1970.

What condition is Auto Tour Road over Canal Turnout 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 October 2022.

How much traffic does Auto Tour Road over Canal Turnout carry?

About 50 vehicles per day (2022 count).

How long is Auto Tour Road over Canal Turnout?

The structure is 22 ft (6.7 m) long with a longest span of 4 ft (1.2 m) and a deck 26 ft wide.

Who owns Auto Tour Road over Canal Turnout?

It is owned by the Bureau of Fish and Wildlife.