Financial Management No. 242484-4-32-01, I-4 Ultimate Improvements From South of US 441 (Orange Blossom Trail) to North of SR 50 (Colonial Drive) Orange County, Florida. The Florida Department of Transportation (FDOT) invites you to a Public Information Meeting regarding future plans for the I-4 (SR 400) Ultimate Improvements in downtown Orlando, Orange County (plans can be reviewed at meeting). The project involves widening approximately four miles of I-4 from six to ten lanes (three general use lanes and two special use lanes in each direction) from just south of Orange Blossom Trail (US 441) to north of Colonial Drive (SR 50). The project also includes interchange improvements at US 441, Michigan Street/Kaley Street, SR 408, and SR 50, replacement of I-4 bridge structures, and improvements to several city streets.