Built Environment : Transportation Geography :

Transportation Structures:
Flank & Appropriation Route Type-Family

Descriptive List


McGraw Road (Township Road 232) in Athens County - using Marietta & Cincinnati Railroad abandoned roadbed Flank & Appropriation Route Type-Family
  1. Canal-Flank Route Type / Canal-Side Route Type
  2. Canal Appropriation~ Type
  3. Railroad-Flank Route Type / Railroad-Side Route Type
  4. Railroad Appropriation~ Type
  5. Road-Flank Route Type / Road-Side Route Type
  6. Parallel Railroad Route Type


Flank & Appropriation Route Type-Family

Routes that run along other routes or atop (thereby replacing) other route structures...

(Access roads that run alongside modern suburban roads or superhighways are excluded; they are modern engineered routes the belong elsewhere...)


  1. Canal Road (County Road 100) from near SR 104 to US 22, Wayne Township, Pickaway County, Ohio, USA Canal-Flank Route Type / Canal-Side Route Type
  2. Semi-engineered route - but not because the route itself is engineered. This is a result of canal construction: The canal is designed to conform to the terrain, with some earthmoving. Since the canal assumes superiority in transportation, any nearby roughly parallel road is realigned to be adjacent to the canal right-of-way. This eliminates landlocked parcels, where usable land would be trapped between the two transportation structures.

    Similar to "access road" created with modern highway or arterial street redesigning.

    Exemplia Gratia:

    • Canal Road (County Road 100) from near SR 104 to US 22, Wayne Township, Pickaway County, Ohio, USA. This is a great example, with the canal alongside the road almost the entire length of the road, and the canal watered much of the way.
    • Part of Ohio SR 104 from Chillicothe north to Andersonville
    • Parts of SR 16 east of Frazeysburg, Muskingum County, Ohio, USA
    • Connector road between SR 16 east of Frazeysburg and Dresden, along branch canal


  3. Camp Sherman Road in Chillicothe, Ohio, USA Canal Appropriation~ Type
  4. The abandoned canal prism and towpath are modified and reused as a road, obliterating the canal structure but generally preserving its route.

    This is not the same as realigning the road alongside the canal structure, but it is usually a realignement of a road that had already undergone that readjustment 70-80 years before.

    Exemplia Gratia:

    • Yoctangee Parkway and Camp Sherman Road in Chillicothe, Ohio, USA
    • Ohio SR 16 west from Frazeysburg, Muskingum County, Ohio, USA
    • Part of Ohio SR 104 from Chillicothe north to Mace farm / 12-Mile Basin (canal in part appropriated after Camp Sherman abandoned?)
    • Part of SR 104 between Waverly and Jasper
    • US 33 from Carroll into Lancaster
    • other parts of SR 16 east of Frazeysburg


  5. US 50 along the SJ&P/DT&I between Dills and Bainbridge Railroad-Flank Route Type / Railroad-Side Route Type
  6. Same as above, but with a railroad, instead of a canal: Semi-engineered route - but not because the route itself is engineered. This is a result of railroad construction: The railroad is designed to conform to the terrain, with some earthmoving (more than the canal). Since the railroad assumes superiority in transportation, any nearby roughly parallel road is realigned to be adjacent to the railroad right-of-way. This eliminates landlocked parcels, where usable land would be trapped between the two transportation structures.

    Similar to "access road" created with modern highway or arterial street redesigning.

    Exemplia Gratia:



  7. McGraw Road (Township Road 232) in Athens County - using Marietta & Cincinnati Railroad abandoned roadbed Railroad Appropriation~ Type
  8. The abandoned railroad bed is modified and reused as a road. This is not the same as realigning the road alongside the railroad structure.

    Exemplia Gratia:



  9. Road-Flank Route Type / Road-Side Route Type
  10. Same as above, but with a road, instead of a canal or railroad: This is a result of (rarely) canal or (more often) railroad construction in level land, where an existing road already conforms to the terrain, or there is not enough terrain to conform to, and the road is going in the right direction.

    In this case, little earthmoving is needed for the more terrain-sensitive canal or railroad, and so the new canal or railroadis aligned to be adjacent to the road right-of-way. This eliminates landlocked parcels, where usable land would be trapped between the two transportation structures. More importantly, it allows interconnection between the two transpoortation structures such as depots or transfer stations.

    It is not always clear which came first though; investigation into histories may be needed to be sure.

    Exemplia Gratia:



  11. N&W and C&O through the Scioto Valley from north of Circleville to Reese Parallel Railroad Route Type
  12. Same as above, but with two railroads, instead of a canal or railroad and road: This is a result of a later railroad following in the footsteps of an earlier railroad. It occurs in level to hilly terrain, as long as the two railroads have the same short-term destination.

    Exemplia Gratia: