US Bridges

SR-574 (mlk) EB over I-75 (SR-93)

Good

Hillsborough County, Florida · 2.3MI East of US-301 · Structure no. 100427

Built
1984
41 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
285 ft
2 main spans
Daily traffic
44,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR-574 (mlk) EB over I-75 (SR-93) is a prestressed concrete continuous stringer/multi-beam or girder carrying SR-574 (mlk) EB over I-75 (SR-93) in Hillsborough County, Florida. It was built in 1984, so it is 41 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 44,000 vehicles a day, roughly 7% of them trucks, projected to reach 76,340 by 2042. The structure is 285 ft (86.9 m) long and 102 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR-574 (mlk) EB
CrossesI-75 (SR-93)
Location2.3MI East of US-301
RouteState Highway 574
CountyHillsborough County
StateFlorida
Coordinates27.9813, -82.32637
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
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 rating51.8 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length285 ft (86.9 m)
Longest span144 ft (44 m)
Deck width102 ft (31.1 m)
Roadway width92 ft (28.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,000 (2023)
Projected traffic76,340 by 2042
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 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 SR-574 (mlk) EB over I-75 (SR-93) built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR-574 (mlk) EB over I-75 (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 October 2023.

How much traffic does SR-574 (mlk) EB over I-75 (SR-93) carry?

About 44,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR-574 (mlk) EB over I-75 (SR-93)?

The structure is 285 ft (86.9 m) long with a longest span of 144 ft (44 m) and a deck 102 ft wide.

Who owns SR-574 (mlk) EB over I-75 (SR-93)?

It is owned by the State Highway Agency.