US Bridges

SR60 WB over N Prong Alafia River

Fair

Polk County, Florida · 3.1MI E of County Line RD · Structure no. 160300

Built
1999
26 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
11,750
2024 count
Owner
State
State Highway Agency

About this bridge

SR60 WB over N Prong Alafia River is a concrete continuous slab carrying SR60 WB over N Prong Alafia River in Polk County, Florida. It was built in 1999, so it is 26 years old, younger 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 11,750 vehicles a day, roughly 18% of them trucks, projected to reach 20,386 by 2044. The structure is 100 ft (30.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR60 WB
CrossesN Prong Alafia River
Location3.1MI E of County Line RD
RouteState Highway 60
StateFlorida
Coordinates27.90773, -82.01296
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.8 US tons
Inventory rating54.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span33 ft (10.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,750 (2024)
Projected traffic20,386 by 2044
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR60 WB over N Prong Alafia River built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR60 WB over N Prong Alafia 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 2024.

How much traffic does SR60 WB over N Prong Alafia River carry?

About 11,750 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is SR60 WB over N Prong Alafia River?

The structure is 100 ft (30.5 m) long with a longest span of 33 ft (10.2 m) and a deck 42 ft wide.

Who owns SR60 WB over N Prong Alafia River?

It is owned by the State Highway Agency.