US Bridges

I-4 (SR-400) over Winston Creek

Good

Polk County, Florida · 0.7 MI E/O Polk Pkwy · Structure no. 160304

Built
1999
26 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
127,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-4 (SR-400) over Winston Creek is a concrete culvert carrying I-4 (SR-400) over Winston Creek 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 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 127,000 vehicles a day, roughly 16% of them trucks, projected to reach 158,750 by 2044. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-4 (SR-400)
CrossesWinston Creek
Location0.7 MI E/O Polk Pkwy
RouteInterstate 4
CountyPolk County
StateFlorida
Coordinates28.04158, -82.03022
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.3 US tons
Inventory rating42.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.8 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127,000 (2024)
Projected traffic158,750 by 2044
Trucks16%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-4 (SR-400) over Winston Creek built?

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

What condition is I-4 (SR-400) over Winston Creek 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 July 2024.

How much traffic does I-4 (SR-400) over Winston Creek carry?

About 127,000 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is I-4 (SR-400) over Winston Creek?

The structure is 35 ft (10.8 m) long with a longest span of 11 ft (3.3 m).

Who owns I-4 (SR-400) over Winston Creek?

It is owned by the State Highway Agency.