US Bridges

Rowlett Park Dr. over Hillsborough River

Fair

Hillsborough County, Florida · 0.9MI North of Sligh Ave. · Structure no. 100086

Built
1957
68 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
159 ft
3 main spans
Daily traffic
13,600
2025 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rowlett Park Dr. over Hillsborough River is a prestressed concrete stringer/multi-beam or girder carrying Rowlett Park Dr. over Hillsborough River in Hillsborough County, Florida. It was built in 1957, so it is 68 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 13,600 vehicles a day, roughly 8% of them trucks, projected to reach 23,596 by 2047. The structure is 159 ft (48.5 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRowlett Park Dr.
CrossesHillsborough River
Location0.9MI North of Sligh Ave.
RouteCity Street 0
CountyHillsborough County
StateFlorida
Coordinates28.02204, -82.43503
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length159 ft (48.5 m)
Longest span53 ft (16.2 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,600 (2025)
Projected traffic23,596 by 2047
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Rowlett Park Dr. over Hillsborough River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Rowlett Park Dr. 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 February 2025.

How much traffic does Rowlett Park Dr. over Hillsborough River carry?

About 13,600 vehicles per day (2025 count), of which roughly 8% are trucks.

How long is Rowlett Park Dr. over Hillsborough River?

The structure is 159 ft (48.5 m) long with a longest span of 53 ft (16.2 m) and a deck 36 ft wide.

Who owns Rowlett Park Dr. over Hillsborough River?

It is owned by the City or Municipal Highway Agency.