US Bridges

Evan Hewes HWY over Central Main Canal

Fair

Imperial County, California · 25 Ft E/O Austin RD · Structure no. 58C0066

Built
1940
85 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
51 ft
3 main spans
Daily traffic
10,500
2016 count
Owner
County
County Highway Agency

About this bridge

Evan Hewes HWY over Central Main Canal is a concrete continuous slab carrying Evan Hewes HWY over Central Main Canal in Imperial County, California. It was built in 1940, so it is 85 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 10,500 vehicles a day, roughly 1% of them trucks, projected to reach 13,157 by 2045. The structure is 51 ft (15.5 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesEvan Hewes HWY
CrossesCentral Main Canal
Location25 Ft E/O Austin RD
RouteCounty Highway 0
CountyImperial County
StateCalifornia
Coordinates32.79651, -115.59481
Functional classUrban Other Principal 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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2016)
Projected traffic13,157 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Evan Hewes HWY over Central Main Canal built?

It was built in 1940, making it 85 years old in 2025.

What condition is Evan Hewes HWY 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 Evan Hewes HWY over Central Main Canal carry?

About 10,500 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Evan Hewes HWY over Central Main Canal?

The structure is 51 ft (15.5 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns Evan Hewes HWY over Central Main Canal?

It is owned by the County Highway Agency.