US Bridges

State Route 198 over Warthan Creek

Fair

Fresno County, California · 06-FRE-198-13.60 · Structure no. 42 0012

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
105 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 slab carrying State Route 198 over Warthan Creek in Fresno County, California. It was built in 1986, so it is 39 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,100 vehicles a day, roughly 17% of them trucks, projected to reach 6,097 by 2043. The structure is 105 ft (32 m) long and 35 ft wide. If it were closed, the detour would be 82.6 mi (133 km).

CarriesState Route 198
CrossesWarthan Creek
Location06-FRE-198-13.60
RouteState Highway 198
Coordinates36.09608, -120.47374
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length105 ft (32 m)
Longest span40 ft (12.2 m)
Deck width35 ft (10.8 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 1986, making it 39 years old in 2025.

What condition is State Route 198 over Warthan Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

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 105 ft (32 m) long with a longest span of 40 ft (12.2 m) and a deck 35 ft wide.

Who owns State Route 198 over Warthan Creek?

It is owned by the State Highway Agency.