US Bridges

Pettyjohn RD over Cold Fork Cottonwood Crk

Poor

Tehama County, California · 0.9 MI W Weemasoul RD · Structure no. 08C0064

Built
1938
87 years old, rebuilt 1983
Condition
Poor
inspected April 2023
Type
Truss - Thru
Steel
Length
74 ft
1 main span
Daily traffic
20
2011 count
Owner
County
County Highway Agency

About this bridge

Pettyjohn RD over Cold Fork Cottonwood Crk is a steel truss - thru carrying Pettyjohn RD over Cold Fork Cottonwood Crk in Tehama County, California. It was built in 1938 and reconstructed in 1983, so it is 87 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20 vehicles a day, projected to reach 28 by 2041. The structure is 74 ft (22.6 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPettyjohn RD
CrossesCold Fork Cottonwood Crk
Location0.9 MI W Weemasoul RD
RouteCounty Highway 0
Coordinates40.16577, -122.6913
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2011)
Projected traffic28 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$250,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pettyjohn RD over Cold Fork Cottonwood Crk built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1983.

What condition is Pettyjohn RD over Cold Fork Cottonwood Crk in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does Pettyjohn RD over Cold Fork Cottonwood Crk carry?

About 20 vehicles per day (2011 count).

How long is Pettyjohn RD over Cold Fork Cottonwood Crk?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 22 ft wide.

Who owns Pettyjohn RD over Cold Fork Cottonwood Crk?

It is owned by the County Highway Agency.