US Bridges

I-4 EB (SR-400) over US-41 (50th St)

Good

Hillsborough County, Florida · 3.3 MI W/O US-301 · Structure no. 100673

Built
2005
20 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
216 ft
1 main span
Daily traffic
74,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-4 EB (SR-400) over US-41 (50th St) is a steel stringer/multi-beam or girder carrying I-4 EB (SR-400) over US-41 (50th St) in Hillsborough County, Florida. It was built in 2005, so it is 20 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 74,000 vehicles a day, roughly 11% of them trucks, projected to reach 128,390 by 2044. The structure is 216 ft (65.9 m) long and 59 ft wide.

Location

Open in Google Maps
CarriesI-4 EB (SR-400)
CrossesUS-41 (50th St)
Location3.3 MI W/O US-301
RouteInterstate 4
CountyHillsborough County
StateFlorida
Coordinates27.96768, -82.40164
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.8 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length216 ft (65.9 m)
Longest span216 ft (65.9 m)
Deck width59 ft (17.9 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,000 (2022)
Projected traffic128,390 by 2044
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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-4 EB (SR-400) over US-41 (50th St) built?

It was built in 2005, making it 20 years old in 2025.

What condition is I-4 EB (SR-400) over US-41 (50th St) 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 June 2024.

How much traffic does I-4 EB (SR-400) over US-41 (50th St) carry?

About 74,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is I-4 EB (SR-400) over US-41 (50th St)?

The structure is 216 ft (65.9 m) long with a longest span of 216 ft (65.9 m) and a deck 59 ft wide.

Who owns I-4 EB (SR-400) over US-41 (50th St)?

It is owned by the State Highway Agency.