Seaboard–All Florida Railway

The east coast route began in West Palm Beach at the terminus of the Seaboard Air Line Railroad's recently completed Florida Western and Northern Railroad which originated at the Seaboard main line in Coleman. From West Palm Beach, the extension proceeded south, paralleling the Florida East Coast Railway which operated a short distance closer to the coast, through Delray Beach, Boca Raton, and Fort Lauderdale.

South of Fort Lauderdale, the line shifted farther inland, passing through Opa-locka, and Hialeah and then southeast into Downtown Miami, terminating at a now-severed connection with the Florida East Coast Railway. The original Miami passenger depot was built at 2206 NW 7th Ave in the Allapattah neighborhood.[4][5][6] A later extension branched off the line in Hialeah (near Miami International Airport) southwest towards Homestead, which was completed in 1927.[7] Some of the north end of Homestead extension was realigned in 1951 to accommodate the expansion of Miami International Airport.

Tri-Rail train on the former Seaboard-All Florida Railway in 2011

In more recent history, the Florida Department of Transportation purchased the east coast line from West Palm Beach to Miami International Airport from CSX Transportation (Seaboard's corporate successor through various mergers) in 1988 for $264 million, and is today the South Florida Rail Corridor.[8] Prior to the sale, the line was part of CSX's Miami Subdivision (a name which still applies to CSX's track north of the SFRC up to a point near North Palm Beach County Airport). FDOT bought the line, which closely parallels Interstate 95, to establish Tri-Rail, South Florida's commuter rail service, after an unsuccessful attempt to establish it on the Florida East Coast Railway. After the sale, CSX continued to maintain and provide dispatching for the line. In 2015, FDOT took over maintenance and dispatching, while CSX continues to have freight trackage rights.[9][10] CSX still owns the line south of the airport (at Oleander Junction) to Homestead, which is their Homestead Subdivision. The Homestead Subdivision is the southernmost trackage of the entire CSX network. Amtrak operates the Silver Meteor and Silver Star service from New York City to Miami over the line, both of which are former Seaboard passenger services. The original southern end of the line from Hialeah to Downtown Miami is now CSX's Downtown Spur.

Today, the original 1920s Seaboard stations are used by Amtrak and Tri-Rail for service at West Palm Beach, Deerfield Beach, Fort Lauderdale and Hollywood. Though no longer in use, the Seaboard stations at Delray Beach, Opa-locka, Hialeah, and Homestead are still standing.

Former Fort Myers passenger depot at Palm Beach Boulevard and East Riverside Avenue

Former Naples depot, which is nearly identical to the Hialeah depot

The west coast route began at Hull (just northeast of Fort Ogden), branching off of the Seaboard's recently acquired Charlotte Harbor and Northern Railway, and proceeded directly south in a nearly straight trajectory to Fort Myers. It crossed the Atlantic Coast Line's competing route twice en route to Fort Myers. Some of the former right of way is now a dirt road through the Fred C. Babcock/Cecil M. Webb Wildlife Management Area in southeastern Charlotte County. The line connected with a logging railroad operated by the Dowling and Camp Lumber Company near Slater.[13] As the line approached Fort Myers, it crossed the Caloosahatchee River on a long drawbridge just downstream of the original Tamiami Trail Bridge. The pier at Riverside Park in East Fort Myers is located where the bridge crossed the river.

In Fort Myers, the passenger depot was located just south of the river at the intersection of Palm Beach Boulevard (State Road 80) and East Riverside Drive. Henry Ford, a seasonal Fort Myers resident, used the station to reach his winter home (the Edison and Ford Winter Estates) on McGregor Boulevard.[14] Just south of the passenger depot, a separate freight depot (which still stands) was built along on Michigan Avenue. Today, Seaboard Street travels along the former right of way near the Fort Myers depots. From there, the line continued south out of the city along Palm Avenue and the west side of the Ten Mile Canal, closely paralleling the Atlantic Coast Line Railroad's competing route (operated today by Seminole Gulf Railway) on the other side of the canal.

At Mullock Creek, another subsidiary, the Naples, Seaboard, and Gulf Railway, continued the line the rest of the way to Naples. From the creek, it headed southeast through Estero (just west of the Koreshan Unity Settlement) to Bonita Springs.[15] In Bonita Springs, it turned south again before crossing the Imperial River. A passenger depot existed on the south side of Bonita Beach Road (near the site of First Presbyterian Church).[2] The line then joined the current route of Goodlette-Frank Road near Vanderbilt Beach and headed into downtown Naples, terminating at the Naples passenger depot on Fifth Avenue South. President Warfield had hoped to build a deep-water port in Naples, which was never built. Today, a FPL transmission line runs on most of the former route from Mullock Creek to just north of Downtown Naples.[15]

In addition to the main route, two branches existed from Fort Myers to LaBelle and Punta Rassa. The thirty-mile LaBelle branch began just south of the Fort Myers freight depot and ran just south of Michigan Avenue before turning northeast and continuing just south of and parallel to State Road 80. It terminated in downtown LaBelle at a depot at Main Street and Seminole Avenue.[16] In the 1940s, a seven-mile spur was built from the LaBelle branch southeast to Buckingham Army Airfield.[17] The 8-mile Punta Rassa branch departed the main line just south of Fort Myers near the Six Mile Cypress Slough. Despite its name, the branch never fully reached Punta Rassa, where President Warfield had also hoped to establish a deep-water port. It actually terminated in Truckland near Iona, just two miles short of Punta Rassa. The branch ran from the main route west along the current route of Six Mile Cypress Parkway, through the center of today's Lakes Park (south of and parallel to the park's scenic boardwalk), then southwest along the current routes of Summerlin Road and Pine Ridge Road before turning back north slightly to its terminus at McGregor Boulevard in Truckland. The Punta Rassa branch ended up mostly serving agricultural land and gladiolus fields near Biggar.[18] Power transmission line easements run on some of the former right of way of both the Labelle and Punta Rassa Branches.[19]

After the line opened, the Seaboard's Orange Blossom Special and West Coast Limited provided daily passenger service down the west coast.[20] Mixed train service (both passenger cars and freight combined) was offered from Fort Myers to LaBelle.

Unlike the east coast route, the west coast route was not as successful and would exist for less than thirty years. The Seaboard Air Line went bankrupt in 1930 after the collapse of the land boom and in 1931, service to Fort Myers and Naples was reduced to a mixed train that operated three days a week. In 1933, only six years after the line opened, passenger service was discontinued entirely on the West Coast. By 1942, track was removed from Vanderbilt north to Punta Rassa Junction (located at present-day Six Mile Cypress Parkway's crossing of the Ten Mile Canal). The southernmost 7 miles of the line from Vanderbilt to downtown Naples and the Naples depot ended up being sold to the Atlantic Coast Line Railroad, who connected it to their parallel Naples Branch and made it their main route into Naples. This segment would remain in service until 1979.[21]

The rest of the west coast route was abandoned and removed by 1952. The Coast Line also reconstructed the first mile and a half of the Punta Rassa branch from their main line in the 1960s to briefly serve a rock mine just east of the Tamiami Trail (US 41) (site of Lakes Park).

Today, a few structures from the line remain. The Naples depot on Fifth Avenue South is now the home of a historical museum. The Fort Myers passenger depot most recently housed the Reilly Brothers Construction company and was demolished in August 2020.[14] The Fort Myers freight depot on Michigan Avenue most recently housed Gully's Discount Store Fixtures but is now vacant (the name "Ft. Myers Seaboard Freight Station" is faintly engraved on the side of the building).[21] The John Yarbrough Linear Park also runs near some of the line's former right of way south of Fort Myers next to the Ten Mile Canal.