US Bridges

SR 589 Ramp 7.8 over SR 589

Good

Hillsborough County, Florida · 1.5 MI S of Gunn HWY · Structure no. 100636

Built
2016
9 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
236 ft
3 main spans
Daily traffic
2,400
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 589 Ramp 7.8 over SR 589 is a prestressed concrete stringer/multi-beam or girder carrying SR 589 Ramp 7.8 over SR 589 in Hillsborough County, Florida. It was built in 2016, so it is 9 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 2,400 vehicles a day, roughly 14% of them trucks, projected to reach 4,164 by 2044. The structure is 236 ft (71.9 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 589 Ramp 7.8
CrossesSR 589
Location1.5 MI S of Gunn HWY
RouteState Highway 589
CountyHillsborough County
StateFlorida
Coordinates28.04594, -82.56571
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionFebruary 2024
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 alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length236 ft (71.9 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,400 (2022)
Projected traffic4,164 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 589 Ramp 7.8 over SR 589 built?

It was built in 2016, making it 9 years old in 2025.

What condition is SR 589 Ramp 7.8 over SR 589 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 February 2024.

How much traffic does SR 589 Ramp 7.8 over SR 589 carry?

About 2,400 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR 589 Ramp 7.8 over SR 589?

The structure is 236 ft (71.9 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns SR 589 Ramp 7.8 over SR 589?

It is owned by the State Toll Authority.