US Bridges

Road 192 over Porter Slough

Fair

Tulare County, California · 0.5 MI S of Ave 184 · Structure no. 46C0071

Built
1966
59 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,300
2010 count
Owner
County
County Highway Agency

About this bridge

Road 192 over Porter Slough is a concrete continuous culvert carrying Road 192 over Porter Slough in Tulare County, California. It was built in 1966, so it is 59 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 6 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 1,300 vehicles a day, roughly 10% of them trucks, projected to reach 2,173 by 2043. The structure is 25 ft (7.5 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRoad 192
CrossesPorter Slough
Location0.5 MI S of Ave 184
RouteCounty Highway 0
CountyTulare County
StateCalifornia
Coordinates36.11634, -119.14285
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.1 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2010)
Projected traffic2,173 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Road 192 over Porter Slough built?

It was built in 1966, making it 59 years old in 2025.

What condition is Road 192 over Porter Slough 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 February 2023.

How much traffic does Road 192 over Porter Slough carry?

About 1,300 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Road 192 over Porter Slough?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns Road 192 over Porter Slough?

It is owned by the County Highway Agency.