US Bridges

Scott Mtn RD over East Fork Scott River

FairPosted for load

Siskiyou County, California · At Gazelle Callahan RD · Structure no. 02C0028

Built
1914
111 years old
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel
Length
82 ft
1 main span
Daily traffic
23
2011 count
Owner
County
County Highway Agency

About this bridge

Scott Mtn RD over East Fork Scott River is a steel truss - thru carrying Scott Mtn RD over East Fork Scott River in Siskiyou County, California. It was built in 1914, so it is 111 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. Its operating status is: posted for load restriction.

It carries about 23 vehicles a day, roughly 2% of them trucks, projected to reach 52 by 2042. The structure is 82 ft (25 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesScott Mtn RD
CrossesEast Fork Scott River
LocationAt Gazelle Callahan RD
RouteCounty Highway 0
Coordinates41.31105, -122.76403
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating22.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2011)
Projected traffic52 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
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 Scott Mtn RD over East Fork Scott River built?

It was built in 1914, making it 111 years old in 2025.

What condition is Scott Mtn RD over East Fork Scott 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 2024.

How much traffic does Scott Mtn RD over East Fork Scott River carry?

About 23 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Scott Mtn RD over East Fork Scott River?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns Scott Mtn RD over East Fork Scott River?

It is owned by the County Highway Agency.