US Bridges

Road M01 over Smokehouse Crk

Good

Lake County, California · N. of Lake Pillsbury · Structure no. 050854000001000

Built
1976
49 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
107 ft
1 main span
Daily traffic
313
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Road M01 over Smokehouse Crk is a concrete slab carrying Road M01 over Smokehouse Crk in Lake County, California. It was built in 1976, so it is 49 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 313 vehicles a day, roughly 3% of them trucks, projected to reach 469 by 2045. The structure is 107 ft (32.5 m) long and 25 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRoad M01
CrossesSmokehouse Crk
LocationN. of Lake Pillsbury
RouteFederal Lands Road 0M01
Coordinates39.74274, -123.0448
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length107 ft (32.5 m)
Longest span42 ft (12.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (1992)
Projected traffic469 by 2045
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Road M01 over Smokehouse Crk built?

It was built in 1976, making it 49 years old in 2025.

What condition is Road M01 over Smokehouse Crk 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 August 2023.

How much traffic does Road M01 over Smokehouse Crk carry?

About 313 vehicles per day (1992 count), of which roughly 3% are trucks.

How long is Road M01 over Smokehouse Crk?

The structure is 107 ft (32.5 m) long with a longest span of 42 ft (12.8 m) and a deck 25 ft wide.

Who owns Road M01 over Smokehouse Crk?

It is owned by the U.S. Forest Service.