US Bridges

US-41 (SR-45) over Palm River

Fair

Hillsborough County, Florida · 0.4 Mile S of SR-60 · Structure no. 100049

Built
1958
67 years old, rebuilt 2015
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
732 ft
20 main spans
Daily traffic
39,000
2023 count
Owner
State
State Highway Agency

About this bridge

US-41 (SR-45) over Palm River is a prestressed concrete stringer/multi-beam or girder carrying US-41 (SR-45) over Palm River in Hillsborough County, Florida. It was built in 1958 and reconstructed in 2015, so it is 67 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 39,000 vehicles a day, roughly 14% of them trucks, projected to reach 67,665 by 2042. The structure is 732 ft (223.1 m) long and 72 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-41 (SR-45)
CrossesPalm River
Location0.4 Mile S of SR-60
RouteU.S. Route 41
StateFlorida
Coordinates27.94599, -82.40181
Functional classUrban Other Principal 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 inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.8 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans20
Design loadHL 93
Structure length732 ft (223.1 m)
Longest span45 ft (13.7 m)
Deck width72 ft (21.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,000 (2023)
Projected traffic67,665 by 2042
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US-41 (SR-45) over Palm River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2015.

What condition is US-41 (SR-45) over Palm 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 March 2023.

How much traffic does US-41 (SR-45) over Palm River carry?

About 39,000 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US-41 (SR-45) over Palm River?

The structure is 732 ft (223.1 m) long with a longest span of 45 ft (13.7 m) and a deck 72 ft wide.

Who owns US-41 (SR-45) over Palm River?

It is owned by the State Highway Agency.