Florida State Road 84

State Road 84
Florida State Road 84 highlighted in red
Route information
Maintained by FDOT
Length	26.24 mi[1][2][3] (42.23 km) 6.464 mi (10.40 km) in Collier County 19.776 mi (31.83 km) in Broward County
Collier County section
West end	US 41 in Naples
East end	SR 951 / CR 951 near Golden Gate
Broward County section
West end	I-75 in Weston
Major intersections	I-595 from Sunrise to Davie Florida's Turnpike / US 441 in Davie I-95 in Fort Lauderdale US 1 / SR A1A in Fort Lauderdale
East end	Miami Road in Fort Lauderdale
Location
Country	United States
State	Florida
Counties	Collier, Broward
Highway system
Florida State Highway System Interstate US State Former Pre‑1945 Toll Scenic
← SR 83 → SR 85

State Road 84 (SR 84) is a highway in the U.S. state of Florida originally extending from Tamiami Trail (U.S. Route 41) in Naples to U.S. Route 1 in Fort Lauderdale. The road consists of two noncontiguous pieces––in Collier County as Davis Boulevard and in Broward County as Marina Mile Boulevard and highway frontage roads.

A 7-mile-long section exists in Collier County, Florida, beginning at Tamiami Trail (US 41) in Naples. It travels east along Davis Boulevard, passing through the neighborhood of East Naples. This section has an eastern terminus at Collier Boulevard, where state maintenance of State Road 951 to the north transitions to the county as County Road 951 to the south, near Exit 101 of Interstate 75 (Alligator Alley) south of Golden Gate. East of SR / CR 951, the road is known as Beck Boulevard, a local road.^[4]

From 1969 until the completion of Interstate 75 in 1993, SR 84 was a primary route through Alligator Alley across the Florida peninsula.

A 12-mile-long stretch in Broward County, Florida that is now primarily a service road for Interstate 595 (SR 862), with the westbound lanes adjacent to the New River Canal. The easternmost three miles (5 km) comprise a divided four-lane highway traversing a Fort Lauderdale neighborhood mostly known as Marina Mile Boulevard (though the most eastern mile of SR 84 is also known as Southeast 24th Street). The present I-595 follows the original route of SR 84 west of the split between the two roads.^[5]

In the 1960s, Tamiami Trail was becoming insufficient to handle the rapidly growing traffic between Tampa and South Florida, and adding lanes to the road that was once considered a major engineering feat was not feasible in light of the demands of nearby Everglades National Park and the Miccosukee Tribe living near the Trail. It was finally decided that a second transpeninsular road would be best to serve the need of motorists to go from “coast to coast” south of Lake Okeechobee, the new one featuring a toll limited access two-lane expressway, the "Everglades Parkway" (the original name of the road that became better known as “Alligator Alley”).

Construction began on Alligator Alley in the early 1960s.^[6] On the Naples side, the route would connect with Davis Boulevard, which was previously a local road running from US 41 to Airport Road (CR 31). Davis Boulevard was named for George Davis, one of the Naples area's first attorneys who built one of the first houses along the road near Shadowlawn Drive.^[7]

Maps in the late 1960s indicated that Alligator Alley would be designated State Road 838, a designation which runs along Sunrise Boulevard in Fort Lauderdale.^[8] Though, when the highway was completed and opened on February 11, 1968, the State Road 84 designation and signs were placed along the entire length of the road (101 miles or 162.54 kilometres) from Naples to Fort Lauderdale.^[6]

Two decades later, the southern extension of Interstate 75 from Tampa was moving forward with earnest, as was the construction of Interstate 595. Because the population and traffic of southern Broward County were growing at a fast rate, Interstate 595 was being built to improve the connections between the Alley and US 1 (and improve access to Port Everglades and Fort Lauderdale-Hollywood International Airport), and the eastbound lanes of SR 84 were shifted southward to accommodate the new expressway that runs down what once was a large grassy median with limited cross-overs/turnarounds for SR 84. I-595 was opened to traffic in the mid-1980s.

When four-laning of Alligator Alley was completed to Interstate highway and environmental standards (several tunnels were constructed at various points under the road for the critically endangered Florida Panther), signs along the toll road identifying it as SR 84 were removed, and I-75 signs went up to replace them in early 1993. While the SR 84 could have remained the hidden designation of the road, the Florida Department of Transportation decided to supersede it with the hidden designation already in place for I-75 in most of the state: SR 93. This created the disconnection of SR 84 that exists to the present day.

County	Location	mi [1][2][3]	km	Destinations	Notes
Collier	Naples	0.000	0.000	US 41 north (5th Avenue)
		0.277	0.446	Commercial Drive to US 41 south
	East Naples	1.005	1.617	CR 31 (Airport–Pulling Road)
	​	4.050	6.518	Santa Barbara Boulevard
	​	5.770	9.286	CR 856 west (Radio Road)	East end of CR 856
	​	6.464	10.403	CR 951 south / SR 951 north (Collier Boulevard) to I-75 – Marco Island, Golden Gate	Termini of CR 951 and SR 951
Gap in route, connection made via 79.22 miles (127.49 kilometres) of I-75
Broward	Weston	0.000– 0.298	0.000– 0.480	I-75 / Glades Parkway south	Exit 22 on I-75
		1.212	1.951	I-75 / Indian Trace south – Weston, Miami	Exit 21 on I-75
		3.259	5.245	Bonaventure Boulevard south
	Sunrise–Weston– Davie tripoint	3.798	6.112	I-595 / Weston Road south to I-75 south – Markham Park
				Southwest 148th Avenue south	Eastbound exit, eastbound entrance
	Davie–Plantation line	5.804	9.341	I-595 east / 136th Avenue to SR 869 (Sawgrass Expressway)	Exit 1 on I-595
		6.859	11.038	I-595 / SR 823 south (Flamingo Road) – Sawgrass Mills Mall	Exit 2 on I-595
		7.880	12.682	I-595 / Hiatus Road	Exit 3 on I-595
		8.898	14.320	I-595 / Nob Hill Road	Exit 4 on I-595
		9.950	16.013	I-595 / Pine Island Road	Exit 5 on I-595
		10.917	17.569	I-595 / SR 817 (University Drive) – South Florida Education Center	Exit 6 on I-595
		12.445	20.028	I-595 / Davie Road south – South Florida Education Center	Exit 7 on I-595
		12.819	20.630	I-595 west to I-75 / SR 869	West end of concurrency with I-595
		13.072	21.037	Florida's Turnpike – Miami, Orlando	Exit 54 on Turnpike; signed as exit 8 eastbound
	Davie–Fort Lauderdale– Broadview Park tripoint	14.070	22.643	US 441 (SR 7)	Signed as exits 9A (north) and 9B (south) eastbound
		14.186	22.830	I-595 east – Airport, Port	East end of concurrency with I-595
	Fort Lauderdale	16.705	26.884	South Fork New River drawbridge
		17.722	28.521	I-95 – Miami, West Palm Beach	Exit 25 on I-95
		19.720	31.736	US 1 / SR A1A – Downtown, Beaches, Hollywood, Airport
		19.776	31.826	Miami Road / 24th Street east – Port Everglades, Convention Center	Terminus of state maintenance
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• Florida Route Log (SR 84)