The Collaborative International Dictionary of English v.0.48:

Telford \Tel"ford\, a. [After Thomas Telford, a Scotch road
   engineer.]
   Designating, or pert. to, a road pavement having a surface of
   small stone rolled hard and smooth, distinguished from
   macadam road by its firm foundation of large stones with
   fragments of stone wedged tightly, in the interstices; as,
   telford pavement, road, etc.
   [Webster 1913 Suppl.]