US Bridges

I-4 (SR-400) over Lake Gibson Drain Canal

Fair

Polk County, Florida · 1.8 MI E/O US-98 · Structure no. 160179

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
104,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-4 (SR-400) over Lake Gibson Drain Canal is a concrete culvert carrying I-4 (SR-400) over Lake Gibson Drain Canal in Polk County, Florida. It was built in 1961, so it is 64 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 104,500 vehicles a day, roughly 17% of them trucks, projected to reach 130,625 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-4 (SR-400)
CrossesLake Gibson Drain Canal
Location1.8 MI E/O US-98
RouteInterstate 4
CountyPolk County
StateFlorida
Coordinates28.10197, -81.94816
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic104,500 (2024)
Projected traffic130,625 by 2044
Trucks17%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Lake Gibson Drain Canal built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-4 (SR-400) over Lake Gibson Drain Canal 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 July 2024.

How much traffic does I-4 (SR-400) over Lake Gibson Drain Canal carry?

About 104,500 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is I-4 (SR-400) over Lake Gibson Drain Canal?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.8 m).

Who owns I-4 (SR-400) over Lake Gibson Drain Canal?

It is owned by the State Highway Agency.