US Bridges

State Route 86 SB over Central Main Canal

Good

Imperial County, California · 11-IMP-086-17.82 · Structure no. 58 0006L

Built
1948
77 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
1 main span
Daily traffic
7,700
2018 count
Owner
State
State Highway Agency

About this bridge

State Route 86 SB over Central Main Canal is a steel stringer/multi-beam or girder carrying State Route 86 SB over Central Main Canal in Imperial 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,700 vehicles a day, roughly 16% of them trucks, projected to reach 14,619 by 2046. The structure is 130 ft (39.6 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 86 SB
CrossesCentral Main Canal
Location11-IMP-086-17.82
RouteState Highway 86
Coordinates32.94893, -115.56947
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating53.9 US tons
Inventory rating32.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span55 ft (16.8 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2018)
Projected traffic14,619 by 2046
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 86 SB over Central Main Canal built?

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

What condition is State Route 86 SB over Central Main Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does State Route 86 SB over Central Main Canal carry?

About 7,700 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is State Route 86 SB over Central Main Canal?

The structure is 130 ft (39.6 m) long with a longest span of 55 ft (16.8 m) and a deck 32 ft wide.

Who owns State Route 86 SB over Central Main Canal?

It is owned by the State Highway Agency.