US Bridges

I-75 NB over Wildlife Crossing No 16

Fair

Collier County, Florida · 5.4 MI E of SR-29 (MM75) · Structure no. 030246

Built
1991
34 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
27,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Wildlife Crossing No 16 is a prestressed concrete slab carrying I-75 NB over Wildlife Crossing No 16 in Collier County, Florida. It was built in 1991, so it is 34 years old, younger 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 27,500 vehicles a day, roughly 18% of them trucks, projected to reach 47,712 by 2044. The structure is 120 ft (36.6 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-75 NB
CrossesWildlife Crossing No 16
Location5.4 MI E of SR-29 (MM75)
RouteInterstate 75
StateFlorida
Coordinates26.1561, -81.25806
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,500 (2023)
Projected traffic47,712 by 2044
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed0.6 mi (1 km)
TollOn an Interstate toll segment under Secretarial agreement
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB over Wildlife Crossing No 16 built?

It was built in 1991, making it 34 years old in 2025.

What condition is I-75 NB over Wildlife Crossing No 16 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 over Wildlife Crossing No 16 carry?

About 27,500 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-75 NB over Wildlife Crossing No 16?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns I-75 NB over Wildlife Crossing No 16?

It is owned by the State Highway Agency.