US Bridges

Road 124 over Alta Canal

Fair

Tulare County, California · 0.4 MI N of Ave 424 · Structure no. 46C0339

Built
1948
77 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
48 ft
4 main spans
Daily traffic
1,050
1969 count
Owner
County
County Highway Agency

About this bridge

Road 124 over Alta Canal is a concrete continuous slab carrying Road 124 over Alta Canal in Tulare County, California. It was built in 1948, so it is 77 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 1,050 vehicles a day, roughly 10% of them trucks, projected to reach 1,381 by 2043. The structure is 48 ft (14.6 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRoad 124
CrossesAlta Canal
Location0.4 MI N of Ave 424
RouteCounty Highway 0
CountyTulare County
StateCalifornia
Coordinates36.56451, -119.29601
Functional classRural Local

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (1969)
Projected traffic1,381 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 124 over Alta Canal built?

It was built in 1948, making it 77 years old in 2025.

What condition is Road 124 over Alta Canal 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 December 2023.

How much traffic does Road 124 over Alta Canal carry?

About 1,050 vehicles per day (1969 count), of which roughly 10% are trucks.

How long is Road 124 over Alta Canal?

The structure is 48 ft (14.6 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns Road 124 over Alta Canal?

It is owned by the County Highway Agency.