The section of SH 16 from Loop 1604 to Eckhert Road (former FM 1517) was proposed for decommissioning in 2014 as part of TxDOT's San Antonio turnback proposal, which would have turned back over 129 miles of roads to the city of San Antonio. SH 16 would have been rerouted over Loop 1604, and Spur 421 and Spur 422 would have been extended over old SH 16. However, the city rejected the proposal.
