US Bridges

SR-583 56th ST SB over Hillsborough River

Fair

Hillsborough County, Florida · 1.8 Miles North of US-92 · Structure no. 100267

Built
1954
71 years old, rebuilt 1992
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
351 ft
14 main spans
Daily traffic
21,250
2022 count
Owner
State
State Highway Agency

About this bridge

SR-583 56th ST SB over Hillsborough River is a concrete tee beam carrying SR-583 56th ST SB over Hillsborough River in Hillsborough County, Florida. It was built in 1954 and reconstructed in 1992, so it is 71 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 21,250 vehicles a day, roughly 3% of them trucks, projected to reach 36,869 by 2044. The structure is 351 ft (106.9 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR-583 56th ST SB
CrossesHillsborough River
Location1.8 Miles North of US-92
RouteState Highway 583
CountyHillsborough County
StateFlorida
Coordinates28.02444, -82.39349
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadH 15
Structure length351 ft (106.9 m)
Longest span25 ft (7.7 m)
Deck width36 ft (10.9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,250 (2022)
Projected traffic36,869 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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-583 56th ST SB over Hillsborough River built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1992.

What condition is SR-583 56th ST SB over Hillsborough River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does SR-583 56th ST SB over Hillsborough River carry?

About 21,250 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is SR-583 56th ST SB over Hillsborough River?

The structure is 351 ft (106.9 m) long with a longest span of 25 ft (7.7 m) and a deck 36 ft wide.

Who owns SR-583 56th ST SB over Hillsborough River?

It is owned by the State Highway Agency.