US Bridges

Kirkwood Road over Brannin Creek

Fair

Tehama County, California · 0.7 MI S Flournoy Ave · Structure no. 08C0313

Built
1920
105 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
150 ft
7 main spans
Daily traffic
779
2021 count
Owner
County
County Highway Agency

About this bridge

Kirkwood Road over Brannin Creek is a concrete continuous tee beam carrying Kirkwood Road over Brannin Creek in Tehama County, California. It was built in 1920, so it is 105 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 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 779 vehicles a day, roughly 4% of them trucks, projected to reach 975 by 2043. The structure is 150 ft (45.7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesKirkwood Road
CrossesBrannin Creek
Location0.7 MI S Flournoy Ave
RouteCounty Highway 0
CountyTehama County
StateCalifornia
Coordinates39.87489, -122.17377
Functional classRural Minor Collector

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic779 (2021)
Projected traffic975 by 2043
Trucks4%
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 Kirkwood Road over Brannin Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Kirkwood Road over Brannin 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 December 2023.

How much traffic does Kirkwood Road over Brannin Creek carry?

About 779 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Kirkwood Road over Brannin Creek?

The structure is 150 ft (45.7 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Kirkwood Road over Brannin Creek?

It is owned by the County Highway Agency.