US Bridges

I-75 NB over Ramp

Good

Miami-Dade County, Florida · 0.14 MI N of NW 186th St. · Structure no. 871176

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
184 ft
1 main span
Daily traffic
6,100
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Ramp is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB over Ramp in Miami-Dade County, Florida. It was built in 2017, so it is 8 years old, younger 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 6,100 vehicles a day, roughly 12% of them trucks, projected to reach 10,584 by 2044. The structure is 184 ft (56.1 m) long and 43 ft wide.

Location

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CarriesI-75 NB
CrossesRamp
Location0.14 MI N of NW 186th St.
RouteInterstate 75
CountyMiami-Dade County
StateFlorida
Coordinates25.94558, -80.3506
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.7 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length184 ft (56.1 m)
Longest span184 ft (56.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2024)
Projected traffic10,584 by 2044
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB over Ramp built?

It was built in 2017, making it 8 years old in 2025.

What condition is I-75 NB over Ramp 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 December 2024.

How much traffic does I-75 NB over Ramp carry?

About 6,100 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is I-75 NB over Ramp?

The structure is 184 ft (56.1 m) long with a longest span of 184 ft (56.1 m) and a deck 43 ft wide.

Who owns I-75 NB over Ramp?

It is owned by the State Highway Agency.