US Bridges

Tulip Street over Interstate 805

Good

San Diego County, California · 11-SD-805-14.38-SD · Structure no. 57 0610

Built
1970
55 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
284 ft
2 main spans
Daily traffic
5,430
2022 count
Owner
State
State Highway Agency

About this bridge

Tulip Street over Interstate 805 is a prestressed concrete continuous box beam or girders - multiple carrying Tulip Street over Interstate 805 in San Diego County, California. It was built in 1970, so it is 55 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 5,430 vehicles a day, roughly 1% of them trucks, projected to reach 6,676 by 2042. The structure is 284 ft (86.6 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTulip Street
CrossesInterstate 805
Location11-SD-805-14.38-SD
RouteCity Street 0
Coordinates32.73003, -117.10793
Functional classUrban Collector

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length284 ft (86.6 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 traffic5,430 (2022)
Projected traffic6,676 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 Tulip Street over Interstate 805 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Tulip Street over Interstate 805 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 August 2024.

How much traffic does Tulip Street over Interstate 805 carry?

About 5,430 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Tulip Street over Interstate 805?

The structure is 284 ft (86.6 m) long with a longest span of 155 ft (47.2 m) and a deck 52 ft wide.

Who owns Tulip Street over Interstate 805?

It is owned by the State Highway Agency.