US Bridges

Hartnell Ave over West Branch Churn Creek

Good

Shasta County, California · 0.2 MI E Churn Crk RD · Structure no. 06C0105

Built
1975
50 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
62 ft
4 main spans
Daily traffic
21,027
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hartnell Ave over West Branch Churn Creek is a concrete continuous culvert carrying Hartnell Ave over West Branch Churn Creek in Shasta County, California. It was built in 1975, so it is 50 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 21,027 vehicles a day, roughly 5% of them trucks, projected to reach 31,326 by 2045. The structure is 62 ft (18.9 m) long and 86 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHartnell Ave
CrossesWest Branch Churn Creek
Location0.2 MI E Churn Crk RD
RouteCity Street 0
Coordinates40.56367, -122.34924
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span15 ft (4.6 m)
Deck width86 ft (26.2 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,027 (2012)
Projected traffic31,326 by 2045
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Hartnell Ave over West Branch Churn Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Hartnell Ave over West Branch Churn Creek 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 May 2023.

How much traffic does Hartnell Ave over West Branch Churn Creek carry?

About 21,027 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Hartnell Ave over West Branch Churn Creek?

The structure is 62 ft (18.9 m) long with a longest span of 15 ft (4.6 m) and a deck 86 ft wide.

Who owns Hartnell Ave over West Branch Churn Creek?

It is owned by the City or Municipal Highway Agency.