US Bridges

Neckel Road over Central Main Canal

Fair

Imperial County, California · 50 Ft E/O Austin RD · Structure no. 58C0211

Built
1972
53 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
630
2016 count
Owner
County
County Highway Agency

About this bridge

Neckel Road over Central Main Canal is a concrete culvert carrying Neckel Road over Central Main Canal in Imperial County, California. It was built in 1972, so it is 53 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 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 630 vehicles a day, roughly 1% of them trucks, projected to reach 767 by 2045. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesNeckel Road
CrossesCentral Main Canal
Location50 Ft E/O Austin RD
RouteCounty Highway 0
CountyImperial County
StateCalifornia
Coordinates32.86177, -115.59477
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 protection8 Very GoodNo problems noted.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2016)
Projected traffic767 by 2045
Trucks1%
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 Neckel Road over Central Main Canal built?

It was built in 1972, making it 53 years old in 2025.

What condition is Neckel Road over Central Main 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 January 2025.

How much traffic does Neckel Road over Central Main Canal carry?

About 630 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Neckel Road over Central Main Canal?

The structure is 29 ft (8.8 m) long with a longest span of 7 ft (2.1 m).

Who owns Neckel Road over Central Main Canal?

It is owned by the County Highway Agency.