US Bridges

43rd-N805 on Ramp over I805 47th&43rd ST Rmps

Fair

San Diego County, California · 11-SD-805-11.34 · Structure no. 57 0797S

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
2,149 ft
10 main spans
Daily traffic
5,500
2020 count
Owner
State
State Highway Agency

About this bridge

43rd-N805 on Ramp over I805 47th&43rd ST Rmps is a prestressed concrete continuous box beam or girders - multiple carrying 43rd-N805 on Ramp over I805 47th&43rd ST Rmps 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 5,500 vehicles a day, roughly 1% of them trucks, projected to reach 6,676 by 2042. The structure is 2,149 ft (655 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries43rd-N805 on Ramp
CrossesI805 47th&43rd ST Rmps
Location11-SD-805-11.34
RouteInterstate 805
CountySan Diego County
StateCalifornia
Coordinates32.68922, -117.09704
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating92.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10 (+5 approach)
Design loadHS 20 + Mod
Structure length2,149 ft (655 m)
Longest span180 ft (54.9 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2020)
Projected traffic6,676 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 43rd-N805 on Ramp over I805 47th&43rd ST Rmps built?

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

What condition is 43rd-N805 on Ramp over I805 47th&43rd ST Rmps 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 43rd-N805 on Ramp over I805 47th&43rd ST Rmps carry?

About 5,500 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is 43rd-N805 on Ramp over I805 47th&43rd ST Rmps?

The structure is 2,149 ft (655 m) long with a longest span of 180 ft (54.9 m) and a deck 38 ft wide.

Who owns 43rd-N805 on Ramp over I805 47th&43rd ST Rmps?

It is owned by the State Highway Agency.