US Bridges

I-275 NB Ramp over Buffalo Canal

Good

Manatee County, Florida · 800FT. South of I-275 · Structure no. 130110

Built
1981
44 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
128 ft
2 main spans
Daily traffic
17,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 NB Ramp over Buffalo Canal is a prestressed concrete stringer/multi-beam or girder carrying I-275 NB Ramp over Buffalo Canal in Manatee County, Florida. It was built in 1981, 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 7% of them trucks, projected to reach 21,250 by 2042. The structure is 128 ft (39 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-275 NB Ramp
CrossesBuffalo Canal
Location800FT. South of I-275
RouteInterstate 275
CountyManatee County
StateFlorida
Coordinates27.57986, -82.51392
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length128 ft (39 m)
Longest span67 ft (20.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2023)
Projected traffic21,250 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-275 NB Ramp over Buffalo Canal built?

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

What condition is I-275 NB Ramp over Buffalo Canal 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 April 2023.

How much traffic does I-275 NB Ramp over Buffalo Canal carry?

About 17,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-275 NB Ramp over Buffalo Canal?

The structure is 128 ft (39 m) long with a longest span of 67 ft (20.4 m) and a deck 42 ft wide.

Who owns I-275 NB Ramp over Buffalo Canal?

It is owned by the State Highway Agency.