US Bridges

Scott River RD over Mcguffy Creek

Fair

Siskiyou County, California · 2.7 MI S Mill Crk RD · Structure no. 02C0134

Built
1979
46 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
39
2011 count
Owner
County
County Highway Agency

About this bridge

Scott River RD over Mcguffy Creek is a concrete continuous culvert carrying Scott River RD over Mcguffy Creek in Siskiyou County, California. It was built in 1979, so it is 46 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 39 vehicles a day, roughly 5% of them trucks, projected to reach 56 by 2046. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 90.1 mi (145 km).

CarriesScott River RD
CrossesMcguffy Creek
Location2.7 MI S Mill Crk RD
RouteCounty Highway 0
Coordinates41.71345, -123.02542
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2011)
Projected traffic56 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 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 River RD over Mcguffy Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Scott River RD over Mcguffy Creek 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 River RD over Mcguffy Creek carry?

About 39 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Scott River RD over Mcguffy Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Scott River RD over Mcguffy Creek?

It is owned by the County Highway Agency.