US Bridges

Hilltop Drive over Interstate 805 & Ramps

Fair

San Diego County, California · 11-SD-805-13.23-SD · Structure no. 57 0660

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
568 ft
4 main spans
Daily traffic
3,389
2022 count
Owner
State
State Highway Agency

About this bridge

Hilltop Drive over Interstate 805 & Ramps is a prestressed concrete continuous box beam or girders - multiple carrying Hilltop Drive over Interstate 805 & Ramps in San Diego County, California. It was built in 1975, so it is 50 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,389 vehicles a day, roughly 1% of them trucks, projected to reach 5,648 by 2044. The structure is 568 ft (173.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHilltop Drive
CrossesInterstate 805 & Ramps
Location11-SD-805-13.23-SD
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.71509, -117.10274
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 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 rating70.8 US tons
Inventory rating53.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length568 ft (173.1 m)
Longest span155 ft (47.2 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,389 (2022)
Projected traffic5,648 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
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 Hilltop Drive over Interstate 805 & Ramps built?

It was built in 1975, making it 50 years old in 2025.

What condition is Hilltop Drive over Interstate 805 & Ramps in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Hilltop Drive over Interstate 805 & Ramps carry?

About 3,389 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Hilltop Drive over Interstate 805 & Ramps?

The structure is 568 ft (173.1 m) long with a longest span of 155 ft (47.2 m) and a deck 52 ft wide.

Who owns Hilltop Drive over Interstate 805 & Ramps?

It is owned by the State Highway Agency.