US Bridges

Chinowth over Mill Creek

Fair

Tulare County, California · 0.08 MI N of SR 198 · Structure no. 46C0440

Built
1959
66 years old, rebuilt 1999
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
1,000
1988 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chinowth over Mill Creek is a concrete slab carrying Chinowth over Mill Creek in Tulare County, California. It was built in 1959 and reconstructed in 1999, so it is 66 years old, older 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 657 by 2042. The structure is 29 ft (8.7 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChinowth
CrossesMill Creek
Location0.08 MI N of SR 198
RouteCounty Highway 0
Coordinates36.32832, -119.33615
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.7 m)
Longest span26 ft (7.9 m)
Deck width64 ft (19.5 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1988)
Projected traffic657 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Chinowth over Mill Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1999.

What condition is Chinowth over Mill 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 March 2024.

How much traffic does Chinowth over Mill Creek carry?

About 1,000 vehicles per day (1988 count), of which roughly 5% are trucks.

How long is Chinowth over Mill Creek?

The structure is 29 ft (8.7 m) long with a longest span of 26 ft (7.9 m) and a deck 64 ft wide.

Who owns Chinowth over Mill Creek?

It is owned by the City or Municipal Highway Agency.