US Bridges

State Route 78 EB over State Route 111

Good

Imperial County, California · 11-IMP-078-R12.87 · Structure no. 58 0338R

Built
2011
14 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
266 ft
3 main spans
Daily traffic
6,100
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 78 EB over State Route 111 is a prestressed concrete continuous box beam or girders - multiple carrying State Route 78 EB over State Route 111 in Imperial County, California. It was built in 2011, so it is 14 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 6,100 vehicles a day, roughly 5% of them trucks, projected to reach 16,235 by 2046. The structure is 266 ft (81.2 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 78 EB
CrossesState Route 111
Location11-IMP-078-R12.87
RouteState Highway 78
Coordinates33.00036, -115.52628
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length266 ft (81.2 m)
Longest span107 ft (32.7 m)
Deck width56 ft (17.2 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2019)
Projected traffic16,235 by 2046
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 78 EB over State Route 111 built?

It was built in 2011, making it 14 years old in 2025.

What condition is State Route 78 EB over State Route 111 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 2025.

How much traffic does State Route 78 EB over State Route 111 carry?

About 6,100 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is State Route 78 EB over State Route 111?

The structure is 266 ft (81.2 m) long with a longest span of 107 ft (32.7 m) and a deck 56 ft wide.

Who owns State Route 78 EB over State Route 111?

It is owned by the State Highway Agency.