Roads
FM Roads Are State Highways Maintained by TxDOT
Farm-to-Market (FM) roads in Dallas County are state-maintained highways, not county roads, even when they run through rural areas.
Many roads in and around Dallas County carry an FM number, like FM 1382 or FM 2551. FM stands for Farm-to-Market. These roads are part of the Texas state highway system. They are maintained by TxDOT, not the county, even when they run through rural areas.
If a state road in Dallas County is damaged or needs repair, report it to TxDOT's Dallas District at txdot.gov. County roads are roads without a state number. Those are maintained by Dallas County Public Works. Knowing which agency is responsible helps you report problems to the right place and get them fixed faster.
Source to confirm: TxDOT – Dallas District