US Bridges

CR-39 over Little Manatee River

Good

Hillsborough County, Florida · 1.0MI South of SR-674 · Structure no. 104706

Built
2006
19 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
144 ft
5 main spans
Daily traffic
9,600
2024 count
Owner
County
County Highway Agency

About this bridge

CR-39 over Little Manatee River is a concrete continuous slab carrying CR-39 over Little Manatee River in Hillsborough County, Florida. It was built in 2006, so it is 19 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 9,600 vehicles a day, roughly 5% of them trucks, projected to reach 12,000 by 2044. The structure is 144 ft (43.9 m) long and 55 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCR-39
CrossesLittle Manatee River
Location1.0MI South of SR-674
RouteCounty Highway 39
StateFlorida
Coordinates27.68839, -82.14608
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 rating65.4 US tons
Inventory rating39.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span29 ft (8.8 m)
Deck width55 ft (16.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,600 (2024)
Projected traffic12,000 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.8 mi (19 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 CR-39 over Little Manatee River built?

It was built in 2006, making it 19 years old in 2025.

What condition is CR-39 over Little Manatee River 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 May 2024.

How much traffic does CR-39 over Little Manatee River carry?

About 9,600 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR-39 over Little Manatee River?

The structure is 144 ft (43.9 m) long with a longest span of 29 ft (8.8 m) and a deck 55 ft wide.

Who owns CR-39 over Little Manatee River?

It is owned by the County Highway Agency.