US Bridges

21st Street over Stine Canal

Good

Kern County, California · 0.1 MI E of Oak Street · Structure no. 50C0291

Built
1937
88 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
4,139
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

21st Street over Stine Canal is a concrete continuous culvert carrying 21st Street over Stine Canal in Kern County, California. It was built in 1937, so it is 88 years old, older 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 4,139 vehicles a day, roughly 5% of them trucks, projected to reach 6,099 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries21st Street
CrossesStine Canal
Location0.1 MI E of Oak Street
RouteCity Street 0
Coordinates35.37811, -119.03773
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 protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,139 (2010)
Projected traffic6,099 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 21st Street over Stine Canal built?

It was built in 1937, making it 88 years old in 2025.

What condition is 21st Street over Stine Canal 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 October 2023.

How much traffic does 21st Street over Stine Canal carry?

About 4,139 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is 21st Street over Stine Canal?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns 21st Street over Stine Canal?

It is owned by the City or Municipal Highway Agency.