Interstate 15 NB over State Route 78

Good Condition49 years old97,000 vehicles/day

Location

StateCalifornia
CountySan Diego
Location11-sd-015-r31.48-esd
CarriesInterstate 15 NB
CrossesState Route 78
Coordinates33.12667, -117.10439

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length329.1 ft (100.3 m)
Max Span172.9 ft (52.7 m)
Deck Width84.6 ft (25.8 m)
Deck Area2587.7 sq m
Main Spans2
Year Built1977

Traffic

Avg Daily Traffic97,000 (2018)
Truck Traffic7%
Lanes On Bridge5
Lanes Under Bridge6

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number57 0814R

Nearby Bridges

Interstate 15 SB over State Route 78 0.0 mi Fair N15-w78 Connector over RTE 15 RTE 78 Conn 0.1 mi Fair N15-e78 Conn Oc over Metcalf Street 0.1 mi Fair State Route 78 EB over Metcalf Street 0.1 mi Fair State Route 78 WB over Metcalf Street 0.1 mi Fair W78-s15 Connector over Metcalf Street 0.1 mi Fair W78-n15 Connector over Metcalf Street 0.1 mi Fair S15-e78 Connector over RTE 15 RTE 78 Conns ST 0.1 mi Fair E78-s15 Connector over Mission AVE 0.2 mi Fair Interstate 15 NB over Mission Avenue 0.2 mi Fair