US Bridges

I-275 NB over I-75

Good

Manatee County, Florida · 3 MI North of US-301 · Structure no. 130090

Built
1981
44 years old, rebuilt 2009
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
708 ft
4 main spans
Daily traffic
17,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 NB over I-75 is a steel continuous stringer/multi-beam or girder carrying I-275 NB over I-75 in Manatee County, Florida. It was built in 1981 and reconstructed in 2009, so it is 44 years old, older 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 17,000 vehicles a day, roughly 8% of them trucks, projected to reach 29,495 by 2044. The structure is 708 ft (215.9 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-275 NB
CrossesI-75
Location3 MI North of US-301
RouteInterstate 275
CountyManatee County
StateFlorida
Coordinates27.58345, -82.51466
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 inspectionAugust 2023
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 rating55 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length708 ft (215.9 m)
Longest span243 ft (74 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2022)
Projected traffic29,495 by 2044
Trucks8%
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 NB over I-75 built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2009.

What condition is I-275 NB over I-75 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 2023.

How much traffic does I-275 NB over I-75 carry?

About 17,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is I-275 NB over I-75?

The structure is 708 ft (215.9 m) long with a longest span of 243 ft (74 m) and a deck 43 ft wide.

Who owns I-275 NB over I-75?

It is owned by the State Highway Agency.