US Bridges

County Road 311 over Deep Cut (baxter) Creek

Fair

Lassen County, California · 1.3 MI E of CR A3 · Structure no. 07C0072

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
22 ft
1 main span
Daily traffic
100
1979 count
Owner
County
County Highway Agency

About this bridge

County Road 311 over Deep Cut (baxter) Creek is a wood or timber stringer/multi-beam or girder carrying County Road 311 over Deep Cut (baxter) Creek in Lassen County, California. It was built in 1978, so it is 47 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 8% of them trucks, projected to reach 196 by 2041. The structure is 22 ft (6.6 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty Road 311
CrossesDeep Cut (baxter) Creek
Location1.3 MI E of CR A3
RouteCounty Highway 0
CountyLassen County
StateCalifornia
Coordinates40.29529, -120.45952
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating35.7 US tons
Inventory rating25.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length22 ft (6.6 m)
Longest span19 ft (5.9 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1979)
Projected traffic196 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-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 County Road 311 over Deep Cut (baxter) Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is County Road 311 over Deep Cut (baxter) 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 County Road 311 over Deep Cut (baxter) Creek carry?

About 100 vehicles per day (1979 count), of which roughly 8% are trucks.

How long is County Road 311 over Deep Cut (baxter) Creek?

The structure is 22 ft (6.6 m) long with a longest span of 19 ft (5.9 m) and a deck 20 ft wide.

Who owns County Road 311 over Deep Cut (baxter) Creek?

It is owned by the County Highway Agency.