US Bridges

Scott Road over Long Valley Creek

Fair

Lassen County, California · 0.8 MI West of US HWY 395 · Structure no. 07G0001

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Steel
Length
89 ft
1 main span
Daily traffic
100
2011 count
Owner
State
Other State Agency

About this bridge

Scott Road over Long Valley Creek is a steel box beam or girders - single or spread carrying Scott Road over Long Valley Creek in Lassen County, California. It was built in 1975, so it is 50 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 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 89 ft (27 m) long and 8 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesScott Road
CrossesLong Valley Creek
Location0.8 MI West of US HWY 395
RouteState Lands Road 0
CountyLassen County
StateCalifornia
Coordinates39.73719, -120.05308
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30 US tons
Inventory rating18.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length89 ft (27 m)
Longest span89 ft (27 m)
Deck width8 ft (2.5 m)
Roadway width8 ft (2.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2011)
Projected traffic160 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Scott Road over Long Valley Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Scott Road over Long Valley 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 2023.

How much traffic does Scott Road over Long Valley Creek carry?

About 100 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Scott Road over Long Valley Creek?

The structure is 89 ft (27 m) long with a longest span of 89 ft (27 m) and a deck 8 ft wide.

Who owns Scott Road over Long Valley Creek?

It is owned by the Other State Agency.