Florida State Road 688

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State Road 688 marker

State Road 688
Ulmerton Road
Route information
Maintained by FDOT
Length: 12.913 mi[1] (20.781 km)
Major junctions
West end: SR 699 in Indian Rocks Beach
 
US 19 Alt. in Largo
East end: I‑275 in St. Petersburg
Highway system
SR 687 SR 693

State Road 688 (SR 688) is an east–west route in Pinellas County running from Indian Rocks Beach to northeastern St. Petersburg, Florida, where it merges onto Interstate 275.

Route description[edit]

The highway changes its name as it heads east across Pinellas County. From Gulf Boulevard in Indian Rocks Beach, it runs along 5th Avenue and crosses the bridge over the Intracoastal Waterway as the Indian Rocks Causeway. Once off the causeway, it becomes Walsingham Road and runs on to the intersection of Walsingham and Ulmerton Roads. Walsingham continues east, but State Road 688 loops north and then east on Ulmerton Road. So it remains as it skirts Largo through Pinellas County. It crosses US 19 and then merges briefly with Roosevelt Boulevard (SR 686). It continues into northeast St. Petersburg and its traffic merges with I-275.

Looking west from the Pinellas Trail bridge over Ulmerton Road

History[edit]

Ulmerton Road was named for the community of Ulmers, which arose around Marion Ulmer's turpentine still, timber and naval stores interests in the first half of the twentieth century. In the 1950s, the area was very rural, and cattle were driven along the then dirt road. Today it carries traffic across the middle of the most densely populated county in Florida.

Major intersections[edit]

The entire route is in Pinellas County.

Location Mile[1] km Destinations Notes
Indian Rocks Beach 0.000 0.000 SR 699 south / CR 183 north (Gulf Boulevard) – Indian Shores, Belleair Shore
Indian Rocks Beach
Largo
0.283–
0.370
0.455–
0.595
Indian Rocks Bridge over The Narrows (Gulf Intracoastal Waterway)
Largo 0.693 1.115 Hamlin Boulevard (CR 213 south)
1.192 1.918 CR 233 (Indian Rocks Road / Oakhurst Road) – Belleair Bluffs, Seminole
1.948 3.135 Vonn Road / 131st Street (CR 263)
  2.250 3.621 Walsingham Road (CR 330 east) - Botanical Gardens, Heritage Village, Museum of Art
Largo 3.914 6.299 Ridge Road (CR 313 south)
4.035 6.494 CR 321 (Ridge Road / 113th Street)
4.545 7.314
US 19 Alt. (Seminole Boulevard / SR 595) – Largo, Seminole
  5.541 8.917 Lake Avenue Southeast (CR 375 north)
Largo 6.053 9.741 CR 1 (Starkey Road)
7.072 11.381 Belcher Road (CR 501)
8.114 13.058 SR 693 (66th Street) – Clearwater, Pinellas Park
  8.50 13.68 US 19 (SR 55) – Clearwater, Pinellas Park, St. Petersburg
  8.604 13.847 62nd Street North (CR 563)
Pinellas Park 9.851 15.854 49th Street North (CR 611)
10.460 16.834 SR 686 west (Roosevelt Boulevard) – Largo, Clearwater interchange; west end of SR 686 overlap; no access from SR 688 east to SR 686 west
St. Petersburg 11.424 18.385 SR 686 east (Roosevelt Boulevard) to I‑275 south – St. Petersburg interchange; east end of SR 686 overlap
12.913 20.781 I‑275 (SR 93) / Martin Luther King Jr. Street (CR 803 south) – Tampa, Bradenton I-275 exit 31; no access from I-275 north or CR 803 north to SR 688 west
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ a b FDOT straight line diagrams, accessed March 2014

Further reading[edit]

  • Largo Area Historical Society. From Pines and Palmettos—A portrait of Largo. The Donning Company Publishers. Virginia Beach, Va. 2005.
  • Largo Bicentennial Book Committee. Largo, then till . . . . Largo Area Historical Society. 1979.
  • Pinellas County Staff. Pinellas County GIS Viewer. Online January 12, 2006.