US Bridges

I-75 NB over SR-70

Good

Manatee County, Florida · 3.5MI South of SR-64 · Structure no. 130154

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
238 ft
2 main spans
Daily traffic
66,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over SR-70 is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB over SR-70 in Manatee County, Florida. It was built in 2019, so it is 6 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 66,500 vehicles a day, roughly 13% of them trucks, projected to reach 83,125 by 2042. The structure is 238 ft (72.5 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-75 NB
CrossesSR-70
Location3.5MI South of SR-64
RouteInterstate 75
CountyManatee County
StateFlorida
Coordinates27.44111, -82.45921
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length238 ft (72.5 m)
Longest span119 ft (36.3 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,500 (2023)
Projected traffic83,125 by 2042
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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-75 NB over SR-70 built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-75 NB over SR-70 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 November 2023.

How much traffic does I-75 NB over SR-70 carry?

About 66,500 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-75 NB over SR-70?

The structure is 238 ft (72.5 m) long with a longest span of 119 ft (36.3 m) and a deck 59 ft wide.

Who owns I-75 NB over SR-70?

It is owned by the State Highway Agency.