US Bridges

Fletcher Avenue over Hillsborough River

Fair

Hillsborough County, Florida · 1.5 Miles West of I-75 · Structure no. 100276

Built
1961
64 years old, rebuilt 1989
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
250 ft
5 main spans
Daily traffic
38,500
2023 count
Owner
County
County Highway Agency

About this bridge

Fletcher Avenue over Hillsborough River is a prestressed concrete stringer/multi-beam or girder carrying Fletcher Avenue over Hillsborough River in Hillsborough County, Florida. It was built in 1961 and reconstructed in 1989, so it is 64 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 38,500 vehicles a day, roughly 8% of them trucks, projected to reach 66,798 by 2042. The structure is 250 ft (76.2 m) long and 100 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesFletcher Avenue
CrossesHillsborough River
Location1.5 Miles West of I-75
RouteCounty Highway 582A
StateFlorida
Coordinates28.06923, -82.37718
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length250 ft (76.2 m)
Longest span50 ft (15.2 m)
Deck width100 ft (30.4 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,500 (2023)
Projected traffic66,798 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Fletcher Avenue over Hillsborough River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1989.

What condition is Fletcher Avenue 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 April 2023.

How much traffic does Fletcher Avenue over Hillsborough River carry?

About 38,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Fletcher Avenue over Hillsborough River?

The structure is 250 ft (76.2 m) long with a longest span of 50 ft (15.2 m) and a deck 100 ft wide.

Who owns Fletcher Avenue over Hillsborough River?

It is owned by the County Highway Agency.