US Bridges

On County Road 320 over Skedaddle Creek

Fair

Lassen County, California · 19.9 MI S/E of US 395 · Structure no. 07C0055

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
200
1987 count
Owner
County
County Highway Agency

About this bridge

On County Road 320 over Skedaddle Creek is a concrete continuous slab carrying On County Road 320 over Skedaddle Creek in Lassen County, California. It was built in 1988, so it is 37 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 200 vehicles a day, roughly 7% of them trucks, projected to reach 555 by 2046. The structure is 68 ft (20.6 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesOn County Road 320
CrossesSkedaddle Creek
Location19.9 MI S/E of US 395
RouteCounty Highway 0
CountyLassen County
StateCalifornia
Coordinates40.26256, -120.03207
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length68 ft (20.6 m)
Longest span28 ft (8.5 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1987)
Projected traffic555 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 On County Road 320 over Skedaddle Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is On County Road 320 over Skedaddle 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 On County Road 320 over Skedaddle Creek carry?

About 200 vehicles per day (1987 count), of which roughly 7% are trucks.

How long is On County Road 320 over Skedaddle Creek?

The structure is 68 ft (20.6 m) long with a longest span of 28 ft (8.5 m) and a deck 29 ft wide.

Who owns On County Road 320 over Skedaddle Creek?

It is owned by the County Highway Agency.