US Bridges

Dale Road over N. Branch Kopta Slough

Fair

Tehama County, California · 1.2 Mi. N & W of Gardiner · Structure no. 000081627-TMP08

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Girder and Floorbeam System
Steel
Length
54 ft
1 main span
Daily traffic
30
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Dale Road over N. Branch Kopta Slough is a steel girder and floorbeam system carrying Dale Road over N. Branch Kopta Slough in Tehama County, California. It was built in 1993, so it is 32 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 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 30 vehicles a day, projected to reach 40 by 2044. The structure is 54 ft (16.5 m) long and 12 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesDale Road
CrossesN. Branch Kopta Slough
Location1.2 Mi. N & W of Gardiner
RouteFederal Lands Road 0
CountyTehama County
StateCalifornia
Coordinates39.93183, -122.10467
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span45 ft (13.7 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic30 (2024)
Projected traffic40 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Dale Road over N. Branch Kopta Slough built?

It was built in 1993, making it 32 years old in 2025.

What condition is Dale Road over N. Branch Kopta Slough 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 2024.

How much traffic does Dale Road over N. Branch Kopta Slough carry?

About 30 vehicles per day (2024 count).

How long is Dale Road over N. Branch Kopta Slough?

The structure is 54 ft (16.5 m) long with a longest span of 45 ft (13.7 m) and a deck 12 ft wide.

Who owns Dale Road over N. Branch Kopta Slough?

It is owned by the Bureau of Fish and Wildlife.