US Bridges

18th Avenue over State Route 198

Good

Kings County, California · 06-KIN-198-R10.56 · Structure no. 45 0076

Built
1964
61 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
190 ft
4 main spans
Daily traffic
8,765
1997 count
Owner
State
State Highway Agency

About this bridge

18th Avenue over State Route 198 is a concrete continuous box beam or girders - multiple carrying 18th Avenue over State Route 198 in Kings County, California. It was built in 1964, so it is 61 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 8,765 vehicles a day, roughly 5% of them trucks, projected to reach 24,562 by 2047. The structure is 190 ft (57.9 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries18th Avenue
CrossesState Route 198
Location06-KIN-198-R10.56
RouteCounty Highway 0
Coordinates36.29132, -119.78093
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span81 ft (24.7 m)
Deck width54 ft (16.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,765 (1997)
Projected traffic24,562 by 2047
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

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 18th Avenue over State Route 198 built?

It was built in 1964, making it 61 years old in 2025.

What condition is 18th Avenue over State Route 198 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 February 2025.

How much traffic does 18th Avenue over State Route 198 carry?

About 8,765 vehicles per day (1997 count), of which roughly 5% are trucks.

How long is 18th Avenue over State Route 198?

The structure is 190 ft (57.9 m) long with a longest span of 81 ft (24.7 m) and a deck 54 ft wide.

Who owns 18th Avenue over State Route 198?

It is owned by the State Highway Agency.