US Bridges

SR-580 Hillsboro a over Rocky Creek

Good

Hillsborough County, Florida · 2.4 Miles West of SR-589 · Structure no. 100303

Built
1992
33 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
261 ft
9 main spans
Daily traffic
57,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR-580 Hillsboro a over Rocky Creek is a concrete continuous slab carrying SR-580 Hillsboro a over Rocky Creek in Hillsborough County, Florida. It was built in 1992, so it is 33 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 57,000 vehicles a day, roughly 5% of them trucks, projected to reach 98,895 by 2042. The structure is 261 ft (79.5 m) long and 116 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR-580 Hillsboro a
CrossesRocky Creek
Location2.4 Miles West of SR-589
RouteState Highway 580
StateFlorida
Coordinates27.99721, -82.58656
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length261 ft (79.5 m)
Longest span30 ft (9.1 m)
Deck width116 ft (35.5 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,000 (2023)
Projected traffic98,895 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-580 Hillsboro a over Rocky Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR-580 Hillsboro a over Rocky Creek 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 March 2023.

How much traffic does SR-580 Hillsboro a over Rocky Creek carry?

About 57,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR-580 Hillsboro a over Rocky Creek?

The structure is 261 ft (79.5 m) long with a longest span of 30 ft (9.1 m) and a deck 116 ft wide.

Who owns SR-580 Hillsboro a over Rocky Creek?

It is owned by the State Highway Agency.