US Bridges

Road over Mid Fk Applegate

Fair

Siskiyou County, California · No Data Entered · Structure no. 061001000001014

Built
1951
74 years old, rebuilt 1983
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Mid Fk Applegate is a steel stringer/multi-beam or girder carrying Road over Mid Fk Applegate in Siskiyou County, California. It was built in 1951 and reconstructed in 1983, so it is 74 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 5 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 75 by 2045. The structure is 74 ft (22.7 m) long and 16 ft wide. If it were closed, the detour would be 30.4 mi (49 km).

Location

Open in Google Maps
CarriesRoad
CrossesMid Fk Applegate
LocationNo Data Entered
RouteFederal Lands Road 10400
CountySiskiyou County
StateCalifornia
Coordinates41.97226, -123.18589
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating45.1 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length74 ft (22.7 m)
Longest span71 ft (21.7 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 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 closed30.4 mi (49 km)
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 Road over Mid Fk Applegate built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1983.

What condition is Road over Mid Fk Applegate 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 June 2023.

How much traffic does Road over Mid Fk Applegate carry?

About 50 vehicles per day (latest count).

How long is Road over Mid Fk Applegate?

The structure is 74 ft (22.7 m) long with a longest span of 71 ft (21.7 m) and a deck 16 ft wide.

Who owns Road over Mid Fk Applegate?

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