US Bridges

I-75 SB to US-301 over SR618EB - I-75 SB

Good

Hillsborough County, Florida · 1.1MI South of SR-60 · Structure no. 100498

Built
1987
38 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Steel
Length
286 ft
1 main span
Daily traffic
23,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 SB to US-301 over SR618EB - I-75 SB is a steel box beam or girders - single or spread carrying I-75 SB to US-301 over SR618EB - I-75 SB in Hillsborough 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 23,000 vehicles a day, roughly 6% of them trucks, projected to reach 39,905 by 2042. The structure is 286 ft (87.1 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-75 SB to US-301
CrossesSR618EB - I-75 SB
Location1.1MI South of SR-60
RouteInterstate 75
CountyHillsborough County
StateFlorida
Coordinates27.92546, -82.33301
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.4 US tons
Inventory rating38.5 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length286 ft (87.1 m)
Longest span286 ft (87.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2023)
Projected traffic39,905 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 SB to US-301 over SR618EB - I-75 SB built?

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

What condition is I-75 SB to US-301 over SR618EB - I-75 SB 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 October 2023.

How much traffic does I-75 SB to US-301 over SR618EB - I-75 SB carry?

About 23,000 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-75 SB to US-301 over SR618EB - I-75 SB?

The structure is 286 ft (87.1 m) long with a longest span of 286 ft (87.1 m) and a deck 43 ft wide.

Who owns I-75 SB to US-301 over SR618EB - I-75 SB?

It is owned by the State Highway Agency.