Miami-Dade Expressway Authority
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The Miami-Dade Expressway Authority (MDX) is an independent agency created in December 1994 by the State of Florida and the Miami-Dade County Commission. Since 1997, MDX has been operating and maintaining five expressways that were formerly operated by the Florida Department of Transportation: Gratigny Parkway (SR 924), Airport Expressway (SR 112), Dolphin Expressway (SR 836), Don Shula Expressway (SR 874) and Snapper Creek Expressway (SR 878). Four of the five expressways are toll roads (all except the Snapper Creek Expressway) charging drivers of automobiles $1.25 per vehicle at each toll booth ($1.00 for those using SunPass).
All MDX highways use the shield-shaped signs reserved by FDOT for toll roads (with the MDX logo (see above) attached below the "shield"). This applies even to the non-tolled Snapper Creek Expressway. Along this and any MDX route where no tolls are ahead, the TOLL in the green section of the TOLL shield is removed. In addition, all MDX highways use a uniquely-designed mileage marker. Instead of the green "MILE XX" markers most commonly seen on Interstate Highways, the five MDX expressways use blue mileage markers featuring (from top to bottom, in white): a single letter indicating the direction of travel, the State Road designation of the highway (complete with outline of the State of Florida), and two numbers separated by a horizontal line ("2" on the top, "4" on the bottom of the line represents Mile Marker 2.4 from either the southern or western end of the expressway). These markers are placed on the edge of the shoulder every 0.2 mile apart along the expressway (the Gratigny Expressway has two of these (Mile Markers 5.0 and 5.2) on a surface street near Opa-Locka on Northwest 119th Street just east of the end of its easternmost ramp).[1]
Completely funded by toll revenues, MDX has been aggressively upgrading and updating its roads over the past decade, including the ongoing Dolphin Expressway extension (the first phase is scheduled to be completed by 2007) and re-engineering of several interchanges of its two oldest expressways (the Airport and Dolphin). Long term plans include the redesign and reconstruction of longtime bottlenecks in the Shula and Dolphin Expressways, most notably the often-backed-up Killian Parkway/SR 990 interchange near Miami Dade College-Kendall Campus and the heavily congested interchange with the Palmetto Expressway (SR 826) near the extreme western end of Miami International Airport.
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[edit] Gratigny Expressway
State Road 924 is a 8.5-mile (13.5 km) east-west highway connecting Interstate 75 and the Palmetto Expressway (SR 826) in Hialeah and SR 909 (West Dixie Highway) in North Miami. The westernmost 5 miles (west of Northwest 32nd Avenue), named the Gratigny Parkway, is a limited access toll road maintained by the Miami-Dade Expressway Authority ($1.25 toll for automobiles); the easternmost three miles (5 km) is a surface street (Northwest 119th Street) also known as Gratigny Road. Despite its relatively short length, SR 924 is a major east-west artery in northern Miami-Dade County.
[edit] Exit List
| Mile[1] | Destinations | Notes |
|---|---|---|
| 0.00 | Northwest 119th Street | Westbound exit and eastbound entrance |
| 0.31 |  SR 953 (Douglas Road Ext) |
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| 1.11 | Barrier Toll in Both Directions | |
| 2.41 |  SR 823 (Red Road) |
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| 4.23 |  SR 826 (Palmetto Expressway) |
Westbound exit and eastbound entrance |
| 5.00 |  I-75 north – Naples |
Westbound exit and eastbound entrance |
[edit] Airport Expressway
State Road 112 is an east-west state highway connecting Miami International Airport in Miami to Miami Beach in the U.S. state of Florida. Between the airport and Interstate 95, it is locally known as the Airport Expressway. Between Interstate 95 and Alton Road (SR 907A) in Miami Beach, SR 112 is signed only as Interstate 195 as it crosses Biscayne Bay on the Julia Tuttle Causeway. Between I-195 and its eastern terminus at Collins Avenue (SR A1A), the SR 112 signs are present but infrequent.
[edit] Exit List
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This section contains a table that is missing mileposts for one or more junctions. Please help by adding the missing mileposts. |
| County | Location | Mile | # | Destinations | Notes |
|---|---|---|---|---|---|
| Miami-Dade | Miami | Miami International Airport | |||
| SR 953 (NW 42nd Avenue) |
Eastbound exit, westbound entrance | ||||
| SR 953 south (NW 42nd Avenue) |
Westbound exit only | ||||
 SR 948 west (NW 36th Street) |
Westbound exit only | ||||
  US 27 / SR 25 north (East Okeechobee Road) |
Westbound exit only | ||||
 SR 9 (NW 27th Avenue) |
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| Eastbound toll barrier ($1.25) | |||||
| NW 22nd Avenue | |||||
| NW 17th Avenue | Westbound exit, eastbound entrance | ||||
 SR 933 (NW 12th Avenue) |
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| 1 |  I-95 |
Western terminus of I-195; end tolled segment eastbound | |||
| 2A | North Miami Avenue | Eastbound exit, westbound entrance | |||
| 2B |  US 1 (Biscayne Boulevard) |
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| Miami Beach | 5 |  SR 907 (Alton Road) |
Eastbound exit, westbound entrance; eastern terminus of I-195 | ||
| North Bay Road | Westbound exit only | ||||
| Begin at-grade intersections eastbound; begin limited-access westbound | |||||
 SR 907A (Alton Road) |
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 SR A1A |
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[edit] Dolphin Expressway
State Road 836, locally known as the Dolphin Expressway, is a 16-mile-long six-lane divided tollway currently extending from US 1 (SR 5) and SR A1A in Miami, westward past Miami International Airport and the Homestead Extension of Florida's Turnpike (SR 821) to just north of the intersection of Southwest 137th Avenue and U.S. Route 41 (SR 90) near Sweetwater, Florida, USA. It is maintained and operated by the Miami-Dade Expressway Authority.
[edit] Exit list
| Location | Destinations | Notes |
|---|---|---|
| Northwest 137th Avenue | Westbound exit and eastbound entrance | |
 Homestead Ext – Homestead, Key West, Ft. Lauderdale, Orlando |
Westbound exit and eastbound entrance | |
| Doral |  SR 985 (Northwest 107th Avenue) |
Westbound exit and eastbound entrance (other access is only to/from Turnpike) |
| Toll plaza | ||
 SR 973 (Northwest 87th Avenue, Galloway Road) / Northwest 12th Street |
||
 SR 826 (Palmetto Expressway) to US 41 (Tamiami Trail) / Flagler Street (SR 968), Coral Way, Northwest 36th Street (SR 948) |
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 SR 969 (Northwest 72nd Avenue, Milam Dairy Road) |
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 SR 959 (Red Road) – Coral Gables |
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| Miami | Northwest 45th Avenue | Eastbound exit and westbound entrance |
| SR 953 (Northwest 42nd Avenue, Le Jeune Road) – Coral Gables, Miami International Airport |
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| Northwest 37th Avenue – Miami International Airport | Westbound exit and eastbound entrance | |
| SR 9 (Northwest 27th Avenue) |
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| Toll plaza (eastbound only) | ||
| Northwest 17th Avenue – Orange Bowl, Civic Center, Hospitals | Eastbound exit and westbound entrance | |
| SR 933 (Northwest 12th Avenue) – Medical Center, Civic Center |
Westbound exit and eastbound entrance | |
| I-95 (SR 9A) – Ft. Lauderdale, Downtown Miami |
Eastbound exit and westbound entrance | |
 I-395 (SR 836 east) – Miami Beach |
Continuation beyond I-95 | |
[edit] References
- ^ Florida Department of Transportation. "FDOT Interchange Report" (PDF). http://www.dot.state.fl.us/planning/statistics/pdfs/interchange.pdf. Retrieved on October 4 2007.
