US Bridges

SR-471 over Lt. Withlacoochee River

Fair

Sumter County, Florida · 2.3 MI S of SR-50 · Structure no. 180012

Built
1964
61 years old, rebuilt 2001
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
5 main spans
Daily traffic
4,300
2022 count
Owner
State
State Highway Agency

About this bridge

SR-471 over Lt. Withlacoochee River is a prestressed concrete stringer/multi-beam or girder carrying SR-471 over Lt. Withlacoochee River in Sumter County, Florida. It was built in 1964 and reconstructed in 2001, so it is 61 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 4,300 vehicles a day, roughly 24% of them trucks, projected to reach 7,460 by 2042. The structure is 217 ft (66 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR-471
CrossesLt. Withlacoochee River
Location2.3 MI S of SR-50
RouteState Highway 471
CountySumter County
StateFlorida
Coordinates28.5215, -82.05447
Functional classRural 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 inspectionJanuary 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating34.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length217 ft (66 m)
Longest span43 ft (13.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2022)
Projected traffic7,460 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 SR-471 over Lt. Withlacoochee River built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2001.

What condition is SR-471 over Lt. Withlacoochee 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 January 2024.

How much traffic does SR-471 over Lt. Withlacoochee River carry?

About 4,300 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is SR-471 over Lt. Withlacoochee River?

The structure is 217 ft (66 m) long with a longest span of 43 ft (13.1 m) and a deck 47 ft wide.

Who owns SR-471 over Lt. Withlacoochee River?

It is owned by the State Highway Agency.