US Bridges

State Route 86 NB over Daroca Ditch

Good

Imperial County, California · 11-IMP-086-62.31 · Structure no. 58 0059R

Built
1979
46 years old, rebuilt 2009
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
7,300
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 86 NB over Daroca Ditch is a concrete continuous slab carrying State Route 86 NB over Daroca Ditch in Imperial County, California. It was built in 1979 and reconstructed in 2009, so it is 46 years old, younger 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 7,300 vehicles a day, roughly 36% of them trucks, projected to reach 10,168 by 2043. The structure is 81 ft (24.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 86 NB
CrossesDaroca Ditch
Location11-IMP-086-62.31
RouteState Highway 86
Coordinates33.35656, -116.01821
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating64.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span26 ft (7.9 m)
Deck width54 ft (16.5 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2017)
Projected traffic10,168 by 2043
Trucks36%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 86 NB over Daroca Ditch built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2009.

What condition is State Route 86 NB over Daroca Ditch 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 October 2023.

How much traffic does State Route 86 NB over Daroca Ditch carry?

About 7,300 vehicles per day (2017 count), of which roughly 36% are trucks.

How long is State Route 86 NB over Daroca Ditch?

The structure is 81 ft (24.7 m) long with a longest span of 26 ft (7.9 m) and a deck 54 ft wide.

Who owns State Route 86 NB over Daroca Ditch?

It is owned by the State Highway Agency.