US Bridges

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

Good

Lee County, Florida · 0.6MI North of SR-80 · Structure no. 120083

Built
1976
49 years old, rebuilt 2015
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,858 ft
3 main spans
Daily traffic
94,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 SB (SR-93) over Caloosahatchee River is a steel continuous stringer/multi-beam or girder carrying I-75 SB (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 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 94,500 vehicles a day, roughly 16% of them trucks, projected to reach 163,958 by 2044. The structure is 3,858 ft (1,175.8 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-75 SB (SR-93)
CrossesCaloosahatchee River
Location0.6MI North of SR-80
RouteInterstate 75
CountyLee County
StateFlorida
Coordinates26.69734, -81.79948
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than 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 rating44.6 US tons
Inventory rating37.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+59 approach)
Design loadHS 20
Structure length3,858 ft (1,175.8 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 SB (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 SB (SR-93) over Caloosahatchee River 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 March 2024.

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

The structure is 3,858 ft (1,175.8 m) long with a longest span of 169 ft (51.6 m) and a deck 71 ft wide.

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

It is owned by the State Highway Agency.