US Bridges

I-275 SB over I-275 NB & Ramps

Good

Pinellas County, Florida · 0.2 Mile South of SR-679 · Structure no. 150190

Built
1987
38 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
653 ft
3 main spans
Daily traffic
32,608
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 SB over I-275 NB & Ramps is a steel continuous stringer/multi-beam or girder carrying I-275 SB over I-275 NB & Ramps in Pinellas County, Florida. It was built in 1987, so it is 38 years old, younger than the Florida average of 41.3 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 32,608 vehicles a day, roughly 7% of them trucks, projected to reach 56,574 by 2044. The structure is 653 ft (199 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-275 SB
CrossesI-275 NB & Ramps
Location0.2 Mile South of SR-679
RouteInterstate 275
CountyPinellas County
StateFlorida
Coordinates27.71622, -82.67933
Functional classUrban Principal Arterial - Interstate

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.8 US tons
Inventory rating25.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length653 ft (199 m)
Longest span229 ft (69.8 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,608 (2022)
Projected traffic56,574 by 2044
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 I-275 SB over I-275 NB & Ramps built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-275 SB over I-275 NB & Ramps 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 July 2023.

How much traffic does I-275 SB over I-275 NB & Ramps carry?

About 32,608 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is I-275 SB over I-275 NB & Ramps?

The structure is 653 ft (199 m) long with a longest span of 229 ft (69.8 m) and a deck 44 ft wide.

Who owns I-275 SB over I-275 NB & Ramps?

It is owned by the State Highway Agency.