US Bridges

Sloat Road over Long Valley Creek

Good

Plumas County, California · 1.2 MI S/W SH 70 · Structure no. 09C0153

Built
1989
36 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
180
2019 count
Owner
County
County Highway Agency

About this bridge

Sloat Road over Long Valley Creek is a steel stringer/multi-beam or girder carrying Sloat Road over Long Valley Creek in Plumas County, California. It was built in 1989, so it is 36 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 180 vehicles a day, roughly 1% of them trucks, projected to reach 102 by 2044. The structure is 44 ft (13.4 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSloat Road
CrossesLong Valley Creek
Location1.2 MI S/W SH 70
RouteCounty Highway 0
CountyPlumas County
StateCalifornia
Coordinates39.86592, -120.72992
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span37 ft (11.3 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2019)
Projected traffic102 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sloat Road over Long Valley Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sloat Road over Long Valley Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

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

About 180 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Sloat Road over Long Valley Creek?

The structure is 44 ft (13.4 m) long with a longest span of 37 ft (11.3 m) and a deck 21 ft wide.

Who owns Sloat Road over Long Valley Creek?

It is owned by the County Highway Agency.