Hidden state road designations of interstate and U.S. highways.

Highway	Hidden Designations
Interstate 4	Florida State Road 400 – exposed route east of I-95 in Daytona Beach
Interstate 10	Florida State Road 8
Interstate 110	Florida State Road 8A
Interstate 75	Florida State Road 93 Florida State Road 93A – Tampa area
Interstate 175	Florida State Road 594
Interstate 275	Florida State Road 93
Interstate 375	Florida State Road 592
Interstate 95	Florida State Road 9 Florida State Road 9A – southernmost 13.69 miles in Miami
Interstate 195	Florida State Road 112
Interstate 295	Florida State Road 9A
Interstate 395	Florida State Road 836
Interstate 595	Florida State Road 862
Interstate 795	Florida State Road 9B
U.S. Route 1	Florida State Road 5 Florida State Road 805 – Lantana to West Palm Beach Florida State Road 15 – northernmost 15 miles
U.S. Route 17	Florida State Road 5 – north from Jacksonville Florida State Road 15 Florida State Road 35 Florida State Road 555 Florida State Road 600
U.S. Route 19	Florida State Road 20 Florida State Road 55 Florida State Road 57
U.S. Route 23	Florida State Road 15 Florida State Road 139 – Downtown Jacksonville and vicinity
U.S. Route 27	Florida State Road 20 Florida State Road 25 Florida State Road 45 Florida State Road 500
U.S. Route 29	Florida State Road 95
U.S. Route 41	Florida State Road 25 Florida State Road 45 Florida State Road 55 Florida State Road 90 Florida State Road 100 – Lake City to Jasper Florida State Road 599
U.S. Route 90	Florida State Road 10 Florida State Road 10A – Pensacola area only Florida State Road 100 – Lake City area only Florida State Road 212
U.S. Route 92	Florida State Road 15 Florida State Road 517 Florida State Road 546 Florida State Road 600 Florida State Road 687
U.S. Route 98	Florida State Road 30 Florida State Road 30A Florida State Road 92 citation needed Florida State Road 700
U.S. Route 129	Florida State Road 51 – Live Oak to Jasper Florida State Road 47 – Chiefland to Trenton Florida State Road 49 – Trenton to Hildreth Florida State Road 100 – Jasper area, concurrency north of Jasper Florida State Road 249 – Branford to Live Oak
U.S. Route 192	Florida State Road 500 Florida State Road 530
U.S. Route 221	Florida State Road 55
U.S. Route 231	Florida State Road 75
U.S. Route 301	Florida State Road 35 Florida State Road 39 Florida State Road 43 Florida State Road 200 Florida State Road 683
U.S. Route 319	Florida State Road 369 Florida State Road 377
U.S. Route 331	Florida State Road 83 – south from DeFuniak Springs only Florida State Road 187
U.S. Route 441	Florida State Road 7 Florida State Road 15 Florida State Road 25 Florida State Road 47 Florida State Road 90 Florida State Road 500

Source: http://www.fhp.state.fl.us/traffic/trooproad_names.html