US Bridges

I-4WB to Dntwn Rmp over I-275 (SR-93)

Good

Hillsborough County, Florida · I-4 & I-275 Interchange · Structure no. 100648

Built
2006
19 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
1 main span
Daily traffic
49,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-4WB to Dntwn Rmp over I-275 (SR-93) is a steel stringer/multi-beam or girder carrying I-4WB to Dntwn Rmp over I-275 (SR-93) in Hillsborough County, Florida. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49,500 vehicles a day, roughly 9% of them trucks, projected to reach 85,882 by 2044. The structure is 151 ft (46.1 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-4WB to Dntwn Rmp
CrossesI-275 (SR-93)
LocationI-4 & I-275 Interchange
RouteInterstate 4
CountyHillsborough County
StateFlorida
Coordinates27.96494, -82.45262
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.5 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length151 ft (46.1 m)
Longest span151 ft (46.1 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,500 (2024)
Projected traffic85,882 by 2044
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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-4WB to Dntwn Rmp over I-275 (SR-93) built?

It was built in 2006, making it 19 years old in 2025.

What condition is I-4WB to Dntwn Rmp over I-275 (SR-93) 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 2024.

How much traffic does I-4WB to Dntwn Rmp over I-275 (SR-93) carry?

About 49,500 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is I-4WB to Dntwn Rmp over I-275 (SR-93)?

The structure is 151 ft (46.1 m) long with a longest span of 151 ft (46.1 m) and a deck 36 ft wide.

Who owns I-4WB to Dntwn Rmp over I-275 (SR-93)?

It is owned by the State Highway Agency.