US Bridges

C.R. 353 over Mcclay Creek

Fair

Lassen County, California · 1.3 MI NE of US HWY 395 · Structure no. 07C0021

Built
1923
102 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
200
1980 count
Owner
County
County Highway Agency

About this bridge

C.R. 353 over Mcclay Creek is a concrete continuous culvert carrying C.R. 353 over Mcclay Creek in Lassen County, California. It was built in 1923, so it is 102 years old, older 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 6% of them trucks, projected to reach 217 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesC.R. 353
CrossesMcclay Creek
Location1.3 MI NE of US HWY 395
RouteCounty Highway 0
CountyLassen County
StateCalifornia
Coordinates40.2636, -120.46943
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
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1980)
Projected traffic217 by 2041
Trucks6%
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 C.R. 353 over Mcclay Creek built?

It was built in 1923, making it 102 years old in 2025.

What condition is C.R. 353 over Mcclay 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 C.R. 353 over Mcclay Creek carry?

About 200 vehicles per day (1980 count), of which roughly 6% are trucks.

How long is C.R. 353 over Mcclay Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (2.9 m).

Who owns C.R. 353 over Mcclay Creek?

It is owned by the County Highway Agency.