US Bridges

Ming Avenue over State Route 99

Good

Kern County, California · 06-KER-099-22.60-BKD · Structure no. 50 0256

Built
1962
63 years old, rebuilt 1991
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
272 ft
3 main spans
Daily traffic
40,000
2018 count
Owner
State
State Highway Agency

About this bridge

Ming Avenue over State Route 99 is a concrete continuous box beam or girders - multiple carrying Ming Avenue over State Route 99 in Kern County, California. It was built in 1962 and reconstructed in 1991, so it is 63 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 40,000 vehicles a day, roughly 2% of them trucks, projected to reach 53,647 by 2045. The structure is 272 ft (82.9 m) long and 114 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMing Avenue
CrossesState Route 99
Location06-KER-099-22.60-BKD
RouteCity Street 0
Coordinates35.3393, -119.04001
Functional classUrban Other Principal Arterial

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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length272 ft (82.9 m)
Longest span104 ft (31.7 m)
Deck width114 ft (34.6 m)
Roadway width106 ft (32.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,000 (2018)
Projected traffic53,647 by 2045
Trucks2%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Ming Avenue over State Route 99 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1991.

What condition is Ming Avenue 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 Ming Avenue over State Route 99 carry?

About 40,000 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Ming Avenue over State Route 99?

The structure is 272 ft (82.9 m) long with a longest span of 104 ft (31.7 m) and a deck 114 ft wide.

Who owns Ming Avenue over State Route 99?

It is owned by the State Highway Agency.