US Bridges

NB SR 93 / I-75 over SR 821 (fl Turnpike)

Good

Miami-Dade County, Florida · I-75 & Fl Tpk Interchange · Structure no. 871109

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
1 main span
Daily traffic
81,000
2024 count
Owner
State
State Highway Agency

About this bridge

NB SR 93 / I-75 over SR 821 (fl Turnpike) is a steel stringer/multi-beam or girder carrying NB SR 93 / I-75 over SR 821 (fl Turnpike) 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 81,000 vehicles a day, roughly 6% of them trucks, projected to reach 140,535 by 2042. The structure is 213 ft (64.9 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNB SR 93 / I-75
CrossesSR 821 (fl Turnpike)
LocationI-75 & Fl Tpk Interchange
RouteInterstate 93
CountyMiami-Dade County
StateFlorida
Coordinates25.95197, -80.35109
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length213 ft (64.9 m)
Longest span213 ft (64.9 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81,000 (2024)
Projected traffic140,535 by 2042
Trucks6%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB SR 93 / I-75 over SR 821 (fl Turnpike) built?

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

What condition is NB SR 93 / I-75 over SR 821 (fl Turnpike) 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 NB SR 93 / I-75 over SR 821 (fl Turnpike) carry?

About 81,000 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is NB SR 93 / I-75 over SR 821 (fl Turnpike)?

The structure is 213 ft (64.9 m) long with a longest span of 213 ft (64.9 m) and a deck 87 ft wide.

Who owns NB SR 93 / I-75 over SR 821 (fl Turnpike)?

It is owned by the State Highway Agency.