US Bridges

State Route 198 over Warthan Creek

Good

Fresno County, California · 06-FRE-198-R15.04 · Structure no. 42 0009

Built
1971
54 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
166 ft
3 main spans
Daily traffic
1,100
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 198 over Warthan Creek is a concrete continuous box beam or girders - multiple carrying State Route 198 over Warthan Creek in Fresno County, California. It was built in 1971, so it is 54 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 1,100 vehicles a day, roughly 17% of them trucks, projected to reach 6,097 by 2043. The structure is 166 ft (50.6 m) long and 34 ft wide. If it were closed, the detour would be 82.6 mi (133 km).

Location

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CarriesState Route 198
CrossesWarthan Creek
Location06-FRE-198-R15.04
RouteState Highway 198
CountyFresno County
StateCalifornia
Coordinates36.09597, -120.45327
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating40.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length166 ft (50.6 m)
Longest span66 ft (20.1 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2009)
Projected traffic6,097 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed82.6 mi (133 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 198 over Warthan Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is State Route 198 over Warthan 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 January 2023.

How much traffic does State Route 198 over Warthan Creek carry?

About 1,100 vehicles per day (2009 count), of which roughly 17% are trucks.

How long is State Route 198 over Warthan Creek?

The structure is 166 ft (50.6 m) long with a longest span of 66 ft (20.1 m) and a deck 34 ft wide.

Who owns State Route 198 over Warthan Creek?

It is owned by the State Highway Agency.