US Bridges

I-75 NB (SR-93) over Caloosahatchee River

Fair

Lee County, Florida · 0.6MI North of SR-80 · Structure no. 120084

Built
1976
49 years old, rebuilt 2015
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,904 ft
3 main spans
Daily traffic
94,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 NB (SR-93) over Caloosahatchee River is a steel continuous stringer/multi-beam or girder carrying I-75 NB (SR-93) over Caloosahatchee River in Lee County, Florida. It was built in 1976 and reconstructed in 2015, so it is 49 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 94,500 vehicles a day, roughly 16% of them trucks, projected to reach 163,958 by 2044. The structure is 3,904 ft (1,190 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 NB (SR-93)
CrossesCaloosahatchee River
Location0.6MI North of SR-80
RouteInterstate 75
CountyLee County
StateFlorida
Coordinates26.69738, -81.79912
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+59 approach)
Design loadHL 93
Structure length3,904 ft (1,190 m)
Longest span169 ft (51.6 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94,500 (2024)
Projected traffic163,958 by 2044
Trucks16%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$121,000
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-75 NB (SR-93) over Caloosahatchee River built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2015.

What condition is I-75 NB (SR-93) over Caloosahatchee 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 March 2024.

How much traffic does I-75 NB (SR-93) over Caloosahatchee River carry?

About 94,500 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is I-75 NB (SR-93) over Caloosahatchee River?

The structure is 3,904 ft (1,190 m) long with a longest span of 169 ft (51.6 m) and a deck 71 ft wide.

Who owns I-75 NB (SR-93) over Caloosahatchee River?

It is owned by the State Highway Agency.