State Road 100 | ||||
|---|---|---|---|---|
 Florida State Road 100 highlighted in red | ||||
| Route information | ||||
| Maintained by FDOT | ||||
| Length | 153.173 mi[1] (246.508 km) | |||
| Existed | 1945–present | |||
| Major junctions | ||||
| West end |   US 129 / SR 11 at the Georgia state line | |||
   US 90 / US 41 / US 441 in Lake City SR 121 in Lake Butler US 301 in Starke  US 17 / SR 20 in Palatka  US 1 / SR 11 in Bunnell I-95 in Palm Coast | ||||
| East end |  SR A1A in Flagler Beach | |||
| Location | ||||
| Country | United States | |||
| State | Florida | |||
| Counties | Hamilton, Columbia, Union, Bradford, Clay, Putnam, Flagler | |||
| Highway system | ||||
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State Road 100 (SR 100) is a 153-mile-long (246 km) east–west highway serving northeast Florida. Its western terminus is at the Georgia-Florida border four miles (6.4 km) north of Avoca, Florida (its continuation in Georgia is State Route 11); its eastern terminus is an intersection with Shore Scenic Highway (SR A1A) in Flagler Beach. The portion west of Lake City is only signed as portions of US 41 and US 129, both of which run north–south.