US Bridges

Belle Terrace over State Route 99

Good

Kern County, California · 06-KER-099-23.10-BKD · Structure no. 50 0534

Built
2020
5 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
294 ft
2 main spans
Daily traffic
459
2021 count
Owner
State
State Highway Agency

About this bridge

Belle Terrace over State Route 99 is a prestressed concrete continuous box beam or girders - multiple carrying Belle Terrace over State Route 99 in Kern County, California. It was built in 2020, so it is 5 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 459 vehicles a day, roughly 16% of them trucks, projected to reach 615 by 2040. The structure is 294 ft (89.7 m) long and 82 ft wide.

CarriesBelle Terrace
CrossesState Route 99
Location06-KER-099-23.10-BKD
RouteCity Street 0
Coordinates35.34664, -119.03996
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length294 ft (89.7 m)
Longest span147 ft (44.9 m)
Deck width82 ft (25.1 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic459 (2021)
Projected traffic615 by 2040
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Belle Terrace over State Route 99 built?

It was built in 2020, making it 5 years old in 2025.

What condition is Belle Terrace over State Route 99 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 Belle Terrace over State Route 99 carry?

About 459 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is Belle Terrace over State Route 99?

The structure is 294 ft (89.7 m) long with a longest span of 147 ft (44.9 m) and a deck 82 ft wide.

Who owns Belle Terrace over State Route 99?

It is owned by the State Highway Agency.