US Bridges

Martin Dairy Road over Little Shasta River

Fair

Siskiyou County, California · Goosenest · Structure no. 050557000001015

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Martin Dairy Road over Little Shasta River is a wood or timber stringer/multi-beam or girder carrying Martin Dairy Road over Little Shasta River in Siskiyou County, California. It was built in 1970, so it is 55 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 29 ft (8.8 m) long and 15 ft wide.

CarriesMartin Dairy Road
CrossesLittle Shasta River
LocationGoosenest
RouteFederal Lands Road 46N12
Coordinates41.79072, -122.19907
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width15 ft (4.6 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 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 Martin Dairy Road over Little Shasta River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Martin Dairy Road over Little Shasta River 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 August 2023.

How much traffic does Martin Dairy Road over Little Shasta River carry?

About 50 vehicles per day (latest count).

How long is Martin Dairy Road over Little Shasta River?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 15 ft wide.

Who owns Martin Dairy Road over Little Shasta River?

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