 | This article needs to beupdated. Please help update this article to reflect recent events or newly available information.(December 2015) |
   Dolphin Expressway | ||||
|---|---|---|---|---|
| SR 836 and I-395 | ||||
 SR 836 highlighted in green, I-395 highlighted in red | ||||
| Route information | ||||
| Maintained byGMX andFDOT | ||||
| Length | 15.387 mi[1] (24.763 km) I-395: 1.292 miles (2.079 km)[2] | |||
| Existed | 1969–present | |||
| Component highways |
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| Major junctions | ||||
| West end |  SR 825 inTamiami | |||
| Major intersections | ||||
| East end |   US 1 /SR A1A in Miami | |||
| Location | ||||
| Country | United States | |||
| State | Florida | |||
| Counties | Miami-Dade | |||
| Highway system | ||||
| ||||
| ||||
TheDolphin Expressway is an all-electronictollway signed asState Road 836 (SR 836) inMiami-Dade County, Florida.[3]
The road currently extends 15.3 miles (24.6 km) from just north of the intersection of Southwest 137th Avenue andU.S. Highway 41 (US 41) inTamiami, eastward past theHomestead Extension of Florida's Turnpike (HEFT) (SR 821) andMiami International Airport, before intersecting I-95, becoming I-395 and ending at SR A1A in Miami at the west end of theMacArthur Causeway. The Dolphin Expressway is maintained and operated by theGreater Miami Expressway Agency (GMX), while the I-395 section is maintained by theFlorida Department of Transportation (FDOT). The Dolphin Expressway from the Palmetto Expressway to I-95 opened in 1969, with the I-395 section opening in 1971, the extension to the HEFT opening in 1974 and a second western extension opening in 2007.
The highway begins just north of the intersection of Southwest 137th Avenue (unsignedSR 825) andU.S. Highway 41 (SR 90) inTamiami, built in 2007 and initially accessible only to motorists withSunPass transponders, passing through the first toll gantry. The expressway heads east towards the Homestead Extension of the Turnpike, and then passes through the second of four toll gantries. It then intersects with the Palmetto Expressway (SR 826) at the recently rebuiltDolphin–Palmetto Interchange, and passes through the southern end of theMiami International Airport. With the failure ofFDOT to build either the previously planned airport spur or the proposed LeJeune Road Expressway to give additional access to the airport,Miami-Dade County's sole complete east–west throughway is now often congested, most commonly in the stretch between the Palmetto Expressway (SR 826) and LeJeune Road (SR 953).
During this stretch, the expressway has interchanges with NW 72nd Avenue, a third toll gantry, NW 57th Avenue, and a partial with NW 45th Avenue before reaching LeJeune Road. East of the interchange with the airport at LeJeune Road, The expressway has interchanges with NW 37th Avenue and NW 27th Avenue (SR 9), and then reaches the fourth and final toll gantry just west of downtown. The highway has two more interchanges in the fringes of downtown with NW 17th Avenue and NW 12th Avenue before intersecting withI-95 at theMidtown Interchange and becoming a free road and unsigned as Interstate 395 goes into downtown Miami.[4]
I-395 heads east as an elevated, six-lane expressway into downtown Miami. The feeder lanes from I-95 to eastbound I-395 make up a separate three lane ramp to the right of I-395, with the exit toUS 1/US 41 being a left exit from the I-395 lanes and a right exit from the I-95 feeder lanes. The feeder lanes then merge into three lanes, heading east towards theMacArthur Causeway, with I-395 and SR 836 terminating just east of an entrance ramp withUS 1 (SR 5)/US 41, and continuing asSR A1A.[4][5]
The Dolphin Expressway is an all-electronic toll road that only accepts tolls viaSunPass transponders or billing by the toll-by-plate at double cost. The toll road does not accept cash. Toll gantries are located along the expressway and on interchange ramps, eliminating all "free movement" sections that existed in the past. As of November 15, 2014, the total toll for traffic traveling along the expressway from Northwest 137th Avenue toInterstate 95 is $2.40 for SunPass users, and $4.80 for Toll-by-Plate users.[6]
Originally envisioned as theTwentieth Street Tollway in 1964 (with a spur to the airport along LeJeune Road), construction on theFourteenth Street east–west Expressway between thePalmetto Expressway and US 1 started in 1967 and was completed in 1969. Two years later, construction of the western extension toFlorida's Turnpike commenced, and was finished in 1974. Also in 1974, the name of the tollway was changed to commemorate the success of theMiami Dolphins of theNFL, afterback-to-back wins in theSuper Bowl.
The section of SR 836 signed as I-395 was supposed to open with the rest of the Dolphin Expressway in 1968, but was delayed due to a freeze at the federal level for road spending.[7] The expressway opened on March 26, 1971.[8]
Initial plans for theInterstate 75 extension to Miami in 1968 would have used the Dolphin Expressway as its final link to Interstate 95 (I-75 would have crossed the Everglades viaTamiami Trail under this plan). However, these plans were abandoned in 1973 in favor of I-75's current route farther north. The fact that the Dolphin Expressway was not built to interstate standards and the expensive costs in upgrading it to such was one of the factors in changing I-75's proposed route.[9]
Construction of a second westward extension of SR 836 started in 2004.[10] This extension, westward to Northwest 137th Avenue near Northwest 12th Street, opened June 22, 2007, was initially accessible only to motorists withSunPasselectronic toll-paying capability; there is no capacity for the collection of cash. The road has since opened to non SunPass users with the Toll by Plate system.
Until July 1, 2007, the toll for eastbound automobiles was $1.25 ($1.00 for motorists withSunPass), paid at a toll booth between Northwest 22nd and Northwest 17th Avenues (toll is not collected from westbound traffic). In conjunction with the completion of the new three-mile-long extension west of the Turnpike, tolls of $1.00 (75 cents for motorists withSunPass) were collected from traffic in both directions west ofSR 973 (Northwest 87th Avenue/Galloway Road). Although the new toll was originally stated to be only for the extension, motorists going to the Florida Turnpike or Northwest 107th Avenue also have to pay.[11]
On July 21, 2013, the eastbound toll plaza near I-95 ceased cash collection and became all electronic, with those paying with SunPass paying $1, and Toll by Plate users paying $2.
On November 15, 2014, the Dolphin Expressway became an all electronic toll road, no longer collecting cash, and the only ways to pay are either by theSunPass transponders or billing by the toll-by-plate program, at double the cost of SunPass users. Toll gantries are located along the expressway and on interchanges to where there are no "free movement" sections of the expressway as existed previously. The move was first announced in 2010, and along with the nearby Airport Expressway, was the last of theGMX expressways to be converted toopen road tolling.[12][13]
On May 24, 2010, construction began on thePort Miami Tunnel, a $1 billion project that connects the port to other major highway arteries, including I-395, with the tunnel opening on August 3, 2014.[14][15]
In 2016, the construction of additional lanes to match the rebuilt, higher capacityDolphin-Palmetto Interchange, withSR 826 was completed.[16]
Following a widening project in the late 2010s, bus lanes were added along the shoulder of the Dolphin Expressway. The expressway is home to two of the state'sdiverging-diamond interchanges after the reconstruction of two exits at Northwest27th Avenue andNorthwest 57th Avenue.[17]
In May 2022, construction began on four new ramps that connect to theHEFT. It includes:
In addition, improvements are being made to ramps from southbound HEFT to eastbound SR 836 and westbound SR 836 to northbound HEFT. The project is expected to cost $41.1 million and was supposed to be completed in spring 2024. The new ramps opened on October 23rd, 2024[18]
In January 2019, the construction of a new SR 836/I-95/I-395 interchange project began. TheGMX is overseeing the construction of a newdouble-decker span of the SR 836 (from NW 17 Avenue, rising over the center of the existing SR 836 roadway, and touching down at I-395, east of the I-95 interchange), while theFlorida Department of Transportation (FDOT) is overseeing the construction of the complete replacement of the I-395 sector (from I-95 to the MacArthur Causeway), with a new "signature"cable-stayed bridge extending across it and overBiscayne Boulevard. Community parks, art installations, andurban green spaces will be designed underneath the 1.4-mile stretch, from NW 3 Avenue to Biscayne Boulevard. In addition, I-95 will undergo concrete pavement reconstruction from NW 8 Street to NW 29 Street.
The project is known as "Connecting Miami". The entire project is expected to cost $840 million and be completed in late 2027.[19][20]
The Kendall Parkway is a planned new north–south extension of SR 836, a multimodaltransportation corridor mostly west of SW 167th Avenue from the current termini of SR 836 at NW 137th Avenue to SW 136th Street. The entire project is expected to cost over $1 billion.[21][22]
Exits are unnumbered on theGMX-maintained section.The entire route is inMiami-Dade County.
| Location | mi[2][1][6] | km | Exit | Destinations | Notes |
|---|---|---|---|---|---|
| Tamiami | 0.000 | 0.000 |    SR 825 south (Southwest 137th Avenue /Lindgren Road) toUS 41 | TheTamiami Trail is approximately one mile south from the end of the expressway viaSR 825. Northbound 137th Avenue leads into an industrial park, where it ends at Northwest 25th Street. | |
| 0.8 | 1.3 | Tamiami toll gantry | |||
| 1.71 | 2.75 | Northwest 121st Avenue / Telemundo Way | Opened October 23rd, 2024; eastbound exit and westbound entrance; access toMiami-Dade Transit Dolphin Park-and-Ride | ||
| Tamiami–Fontainebleau– Sweetwater tripoint | 2.21 | 3.56 |  Florida's Turnpike Extension –Homestead,Fort Lauderdale,Orlando | No southbound access from eastbound 836; exit 26 on Florida's Turnpike Extension | |
| Fontainebleau–Doral line | 3.584 | 5.768 |  SR 985 (Northwest 107th Avenue) | Eastbound exit is only accessible from Turnpike entrance; tolled eastbound exit and westbound entrance | |
| 4.4 | 7.1 | Fontainebleau toll gantry | |||
| 5.12 | 8.24 |  SR 973 (Northwest 87th Avenue /Galloway Road) / Northwest 12th Street | Tolled eastbound entrance and westbound exit | ||
| 5.45 | 8.77 |  SR 826 (Palmetto Expressway) | |||
| 6.48 | 10.43 |  SR 968 (West Flagler Street) /US 41 (Southwest 8th Street /Tamiami Trail) | Via SR 826 south; westbound exit is via SR 836 east | ||
| 6.73 | 10.83 |  SR 969 (Northwest 72nd Avenue / Milam Dairy Road) | Tolled westbound entrance | ||
| Miami | 8.5 | 13.7 | Red Road toll gantry | ||
| 8.689 | 13.984 |  SR 959 (Northwest 57th Avenue /Red Road) | Diverging diamond interchange; tolled westbound exit and eastbound entrance[23] | ||
| 9.89 | 15.92 | Northwest 45th Avenue | Eastbound exit and westbound entrance | ||
| 10.275 | 16.536 |   SR 953 (Le Jeune Road / Northwest 42nd Avenue) –Coral Gables,Rental Car Center,Airport | Westbound exit is viaNorthwest 14th Street | ||
| 10.795 | 17.373 | Northwest 37th Avenue /Douglas Road | Westbound exit and eastbound entrance | ||
| 11.834 | 19.045 |  SR 9 (Northwest 27th Avenue) | Diverging diamond interchange; tolled eastbound exit and westbound entrance[23] | ||
| 12.538 | 20.178 | Ballpark toll gantry | |||
| 12.915 | 20.785 | Northwest 17th Avenue –Civic Center,Ballpark | Eastbound exit and westbound entrance; access toUniversity of Miami Medical Center andJackson Memorial Hospital | ||
| 13.447 | 21.641 |   SR 933 (Northwest 12th Avenue) –Medical /Civic Center | Westbound exit and eastbound entrance (both tolled) | ||
| 13.999 | 22.529 | East end ofGMX maintenance; west end of state maintenance | |||
| 14.204 | 22.859 | 1 |  I-95 / Northwest 8th Street –Fort Lauderdale,Downtown,Key Biscayne | West end of I-395concurrency; signed as exits 1A (south) and 1B (north) westbound; exits 2D (east) and 3A (west) on I-95 | |
| 15.156 | 24.391 | 2 | US 1 (Biscayne Boulevard) / Northeast 2nd Avenue –Arenas,PAC,Bayside,Science Museum | Signed as exit 2A eastbound (exit 2B is for traffic coming from I-95) | |
| 15.387 | 24.763 | – |   SR A1A north toSR 887 (PortMiami viaTunnel) –Miami Beach,Jungle Island,Miami Children's Museum,Miami Seaplane Base | Continues east as SR A1A viaMacArthur Causeway | |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
