US Bridges

State Route 78 WB over Centre City Parkway

Good

San Diego County, California · 11-SD-078-R17.27-ESD · Structure no. 57 0508L

Built
1964
61 years old, rebuilt 1995
Condition
Good
inspected April 2021
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
190 ft
4 main spans
Daily traffic
28,000
2012 count
Owner
State
State Highway Agency

About this bridge

State Route 78 WB over Centre City Parkway is a concrete continuous box beam or girders - multiple carrying State Route 78 WB over Centre City Parkway in San Diego County, California. It was built in 1964 and reconstructed in 1995, so it is 61 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 28,000 vehicles a day, roughly 5% of them trucks, projected to reach 46,264 by 2040. The structure is 190 ft (57.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 78 WB
CrossesCentre City Parkway
Location11-SD-078-R17.27-ESD
RouteState Highway 78
Coordinates33.13087, -117.09277
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length190 ft (57.9 m)
Longest span78 ft (23.8 m)
Deck width56 ft (17 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,000 (2012)
Projected traffic46,264 by 2040
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 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 WB over Centre City Parkway built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1995.

What condition is State Route 78 WB over Centre City Parkway 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 April 2021.

How much traffic does State Route 78 WB over Centre City Parkway carry?

About 28,000 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is State Route 78 WB over Centre City Parkway?

The structure is 190 ft (57.9 m) long with a longest span of 78 ft (23.8 m) and a deck 56 ft wide.

Who owns State Route 78 WB over Centre City Parkway?

It is owned by the State Highway Agency.