State Road 112 (SR 112) is a east–west

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

connecting

Miami International Airport Miami International Airport , also known as MIA and historically as Wilcox Field, is the primary airport serving the greater Miami metropolitan area with over 1,000 daily flights to 167 domestic and international destinations, including most co ...

Miami Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a East Coast of the United States, coastal metropolis and the County seat, county seat of Miami-Dade County, Florida, Miami-Dade C ...

Miami Beach Miami Beach is a coastal resort city in Miami-Dade County, Florida. It was incorporated on March 26, 1915. The municipality is located on natural and man-made barrier islands between the Atlantic Ocean and Biscayne Bay, the latter of which sep ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

. Between the airport and

Interstate 95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1, US Route 1 (US 1) in Miami, Miami, Florida, to the Houlton–Woodstock Border Crossing between M ...

, it is locally known as the Airport Expressway (or the Airport Tollway), and is an all-electronic toll road between State Road 9 to I-95. Between I-95 and Alton Road ( SR 907A) in Miami Beach, SR 112 is signed only as Interstate 195 as it crosses

Biscayne Bay Biscayne Bay () is a lagoon with characteristics of an estuary located on the Atlantic coast of South Florida. The northern end of the lagoon is surrounded by the densely developed heart of the Miami metropolitan area while the southern end is la ...

by way of the

Julia Tuttle Causeway Julia is usually a feminine given name. It is a Latinate feminine form of the name Julio and Julius. (For further details on etymology, see the Wiktionary entry "Julius".) The given name ''Julia'' had been in use throughout Late Antiquity (e.g. ...

. Between I-195 and its eastern terminus at Collins Avenue ( SR A1A), the SR 112 signs are present but infrequent, and the road is locally maintained as Arthur Godfrey Road.

Route description

Airport Expressway

SR 112 begins at the main entrance of

, at the intersection of NW 21st Street and State Road 953 (Le Jeune Road), and heads north. From here until the interchange with

I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from US Route 1 (US 1) in Miami, Florida, to the Houlton–Woodstock Border Crossing between Maine and the Canadia ...

, the road is known as the Airport Expressway and is maintained by the

Miami-Dade Expressway Authority The Miami-Dade Expressway Authority (MDX) is an independent agency created in December 1994 by the State of Florida and the Miami-Dade County, Florida, Miami-Dade County Commission. Since 1997 MDX has operated and maintained five expressways former ...

(MDX). For its first mile or so, the road runs parallel to SR 953 and an airport runway, with its lanes featuring a divided left-hand driving direction. About north of the southern terminus, SR 112 features an at-grade

railroad crossing A level crossing is an intersection where a railway line crosses a road, path, or (in rare situations) airport runway, at the same level, as opposed to the railway line crossing over or under using an overpass or tunnel. The term also ...

, near the eastern end of one of the airport's runways. The road swings to its main east-west orientation past the airport, with its lanes crossing to a normal driving direction just to the east of its partial interchange with SR 948, which also provides limited access to

U.S. Route 27 U.S. Route 27 (US 27) is a north–south United States Highway in the southern and midwestern United States. The southern terminus is at US 1 in Miami, Florida. The northern terminus is at Interstate 69 (I-69) in Fort Wayne, Indiana. F ...

. After crossing NW 37th Avenue, the Airport Expressway passes through its first of two toll gantries, charging $0.35 for vehicles with

SunPass SunPass is an electronic toll collection system within the state of Florida, United States. It was created in 1999 by the Florida Department of Transportation's (FDOT's) Office of Toll Operations, operating now as a division of Florida's Turnpik ...

transponders and $0.70 for the remaining Toll-by-Plate users. It also runs roughly parallel to the

Metrorail METRORail is the light rail system in Houston, Texas (United States). In , the system had a ridership of , or about per weekday as of . METRORail ranks as the second most-traveled light rail system in the Southern United States and the 12th ...

Orange Line, crossing under it just west of NW 32nd Avenue. SR 112 then interchanges with SR 9 (NW 27th Avenue), and then NW 22nd Avenue half a mile later. From here, the expressway passes through the second toll gantry (at the location of the former toll plaza), charging the same rates as the first gantry. Near this gantry, SR 112 passes the southern side of the Earlington Heights Metrorail station, where the two lines of the Metrorail system merge, with both the Airport Expressway and the Metro continuing to run parallel eastwards for another or so. Just before SR 112's partial interchange with SR 933 (NW 12th Avenue), the Metrorail tracks cross over the Airport Expressway as they curve southwards. About later, the Airport Expressway ends at the

stack interchange A directional interchange, colloquially known as a stack interchange, is a type of grade-separated junction between two controlled-access highways that allows for free-flowing movement to and from all directions of traffic. These interchanges e ...

with

(alternatively known as the 36th Street Interchange), with SR 112 and the pavement continuing eastwards as Interstate 195.

I-195

The section of SR 112 connecting

in the west with

in the east is also designated as I-195. This portion of the route is signed as I-195, with SR 112 becoming an

unsigned highway Road sign along Aurora_to_exit_the_freeway._The_road_at_this_exit_is_officially_designated_Sigurd_and_Aurora,_Utah">Aurora_to_exit_the_freeway._The_road_at_this_exit_is_officially_designated_Utah_State_Route_259">SR 259,_a_short_connector;_h ...

. I-195 and SR 112 cross

by way of the

. At SR 907A (Alton Road), I-195 terminates while SR 112 continues east as Arthur Godfrey Road.

At-grade section

East of Alton Road, SR 112 continues as the palm-lined

Arthur Godfrey Arthur Morton Godfrey (August 31, 1903 – March 16, 1983) was an American radio and television broadcaster and entertainer who was sometimes introduced by his nickname The Old Redhead. At the peak of his success, in the early-to-mid 1950s, Godf ...

Road (also known as West 41st Street), an undivided four-lane road. It passes through the southern end of

Nautilus The nautilus (, ) is a pelagic marine mollusc of the cephalopod family Nautilidae. The nautilus is the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina. It comprises six living species in t ...

, past shops and low-rise office buildings, crossing the Biscayne Waterway before passing along the southern edge of North Beach Elementary School. Continuing past more shops and a hotel, SR 112 crosses the

Intracoastal Waterway The Intracoastal Waterway (ICW) is a inland waterway along the Atlantic and Gulf of Mexico coasts of the United States, running from Massachusetts southward along the Atlantic Seaboard and around the southern tip of Florida, then following th ...

before immediately meeting the southbound half of SR A1A. Past here, the road becomes one lane in each direction and meets the northbound half of SR A1A one block later, terminating amidst the high-rises of Mid-Beach. 41st Street continues on a short distance into a

cul-de-sac A dead end, also known as a cul-de-sac (, from French for 'bag-bottom'), no through road or no exit road, is a street with only one inlet or outlet. The term "dead end" is understood in all varieties of English, but the official terminology ...

Tolls

Tolls on the Airport Expressway are all electronic, meaning there are no cash transactions. Payment is done either via

transponders or via toll-by-plate billing, the latter of which charges double of the former. Two toll gantries are located along the expressway portion of the road, each charging $0.35 for SunPass users and $0.70 for Toll-by-Plate. As of November 15, 2014, it costs $0.70 to travel the entire expressway portion via SunPass (and $1.40 via Toll-by-Plate). All motorists are charged at least one toll for using the road; there are no "free sections" as existed prior to the electronic toll conversion in 2014.

History

Construction of SR 112 began in 1959, and the expressway was opened to traffic on December 23, 1961 (six months after the Palmetto Expressway, SR 826). Its initial name was the 36th Street Tollway, but use of the name eventually faded in favor of the more popular "Airport Expressway". Initially the toll road had its western terminus at the congested intersection with LeJeune Road ( SR 953), Northwest 36th Street ( SR 48), and Okeechobee Road ( US 27 / SR 25) just east of the airport. It wasn't until 1990 when SR 112 was extended southward and westward onto the airport property, terminating at the main entrance. The numbering of SR 112 is an anomaly in the current grid-based system. The road was assigned its number while it was in its planning stages; it retained the number as FDOT made widespread changes in the numbering of State Roads in southeastern Florida in the 1970s and early 1980s. On November 15, 2014, the Airport Expressway became an all electronic toll road, no longer collecting cash, and the only ways to pay are either by the

transponders or billing by the toll-by-plate program, at double the cost. This also eliminated all "free movement" sections of the tolled section of SR 112, and restored tolls westbound, which had been removed in March 1984. This change was first announced in 2010, and along with the nearby Dolphin Expressway, SR 112 was the last of the MDX expressways to be converted to

open road tolling Open road tolling (ORT), also called all-electronic tolling, cashless tolling, or free-flow tolling, is the collection of tolls on toll roads without the use of toll booths. An electronic toll collection system is usually used instead. The m ...

Interstate 195 Spur

On December 23, 1961, three signed roads along the route of SR 112 were opened: the 36th Street Tollway, Interstate 195, and Spur Interstate 195. I-195 Spur was the surface portion of the east–west state route along Arthur Godfrey Road in

, connecting I-195's eastern terminus to SR A1A. The I-195 Spur signs disappeared from the road shortly after the designation was decommissioned by the newly formed

United States Department of Transportation The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the President of the United States and ...

in the late 1960s, and is now signed solely (but scarcely) as SR 112.

Future

While repeated attempts to secure funding for extending SR 112 along SR 948 to the

Palmetto Expressway Palmetto (meaning "little palm") may refer to: Palms Several small palms in the Arecaceae (palm tree) family: *in the genus ''Sabal'': **Bermuda palmetto, '' Sabal bermudana'' **Birmingham palmetto, ''Sabal'' 'Birmingham' **Dwarf, or bush palm ...

and the

Homestead Extension of Florida's Turnpike The Homestead Extension of Florida's Turnpike (HEFT), designated as unsigned State Road 821 (SR 821), is the southern extension of Florida's Turnpike, a toll road in the U.S. state of Florida maintained by Florida's Turnpike Enterprise (F ...

have failed, the

Florida Department of Transportation The Florida Department of Transportation (FDOT) is a decentralized agency charged with the establishment, maintenance, and regulation of public transportation in the state of Florida. The department was formed in 1969. It absorbed the powers of t ...

is constructing a connector between the

Dolphin Expressway A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the ...

and the Airport Expressway as part of a massive project (the

Miami Intermodal Center Miami Intermodal Center (MIC) is an intermodal rapid transit, commuter rail, intercity rail, local bus, and intercity bus transportation hub in Miami-Dade County, Florida, just outside the Miami city limits near the Grapeland Heights neighbo ...

) tying together expressways, rail lines, and the airport. It remains to be seen if the connector will have its own FDOT designation or if the SR 112 will be extended over it to connect the Miami area's two primary east–west expressways.

Exit list

All exits not concurrent with I-195 are unnumbered.

References

External links

FDOT

GIS data Geographic data and information is defined in the ISO/TC 211 series of standards as data and information having an implicit or explicit association with a location relative to Earth (a geographic location or geographic position). It is also call ...

Florida @ SouthEastRoads - Interstate 195 and Florida 112
{{DEFAULTSORT:112 State highways in Florida State Roads in Miami Toll roads in Florida State Roads in Miami-Dade County, Florida Hialeah, Florida State Roads in Miami Beach, Florida 1961 establishments in Florida