US Bridges

N805-43rd ST Offrp over I 805 Ramps 47th ST

Fair

San Diego County, California · 11-SD-805-11.31-SD · Structure no. 57 0789S

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
922 ft
3 main spans
Daily traffic
7,000
2020 count
Owner
State
State Highway Agency

About this bridge

N805-43rd ST Offrp over I 805 Ramps 47th ST is a prestressed concrete continuous box beam or girders - multiple carrying N805-43rd ST Offrp over I 805 Ramps 47th ST 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 7,000 vehicles a day, roughly 2% of them trucks, projected to reach 9,676 by 2042. The structure is 922 ft (281 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN805-43rd ST Offrp
CrossesI 805 Ramps 47th ST
Location11-SD-805-11.31-SD
RouteInterstate 805
CountySan Diego County
StateCalifornia
Coordinates32.68873, -117.09314
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.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+5 approach)
Design loadHS 20 + Mod
Structure length922 ft (281 m)
Longest span176 ft (53.6 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic7,000 (2020)
Projected traffic9,676 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 N805-43rd ST Offrp over I 805 Ramps 47th ST built?

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

What condition is N805-43rd ST Offrp over I 805 Ramps 47th ST 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 N805-43rd ST Offrp over I 805 Ramps 47th ST carry?

About 7,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is N805-43rd ST Offrp over I 805 Ramps 47th ST?

The structure is 922 ft (281 m) long with a longest span of 176 ft (53.6 m) and a deck 42 ft wide.

Who owns N805-43rd ST Offrp over I 805 Ramps 47th ST?

It is owned by the State Highway Agency.