US Bridges

I-75 (sr 93) NB over Monty Run

Good

Lee County, Florida · 0.75MI. S of Corkscrew RD · Structure no. 120131

Built
1979
46 years old, rebuilt 2009
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
120 ft
4 main spans
Daily traffic
54,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 (sr 93) NB over Monty Run is a concrete continuous slab carrying I-75 (sr 93) NB over Monty Run in Lee County, Florida. It was built in 1979 and reconstructed in 2009, so it is 46 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 54,000 vehicles a day, roughly 11% of them trucks, projected to reach 93,690 by 2042. The structure is 120 ft (36.6 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 (sr 93) NB
CrossesMonty Run
Location0.75MI. S of Corkscrew RD
RouteInterstate 75
CountyLee County
StateFlorida
Coordinates26.42154, -81.77378
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span30 ft (9.2 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,000 (2023)
Projected traffic93,690 by 2042
Trucks11%
Lanes on structure3
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 (sr 93) NB over Monty Run built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2009.

What condition is I-75 (sr 93) NB over Monty Run 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 April 2023.

How much traffic does I-75 (sr 93) NB over Monty Run carry?

About 54,000 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I-75 (sr 93) NB over Monty Run?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.2 m) and a deck 59 ft wide.

Who owns I-75 (sr 93) NB over Monty Run?

It is owned by the State Highway Agency.