Bolton Waterbury STP 2709(1) Wildlife Connectivity Study Final Report


Bolton Waterbury STP 2709(1) Wildlife Connectivity Study Final Report

McFarland Johnson - 2016

Organization: McFarland Johnson, Vermont Fish & Wildlife, VTrans

Location: Vermont



Purpose of Study This study was undertaken to answer the following questions:

  • Is the habitat in the vicinity rich in wildlife?
  • Is there an edge effect zone along the corridor?
  • Is the I-89/Route 2 corridor currently a fragmenting feature?
  • Is wildlife road mortality currently occurring?  Are existing culverts and bridges facilitating wildlife movement?
  • Would infrastructure modifications improve wildlife movements across barriers?


The study focused on medium- to large-sized, wide-ranging mammals. The principal means of collecting information on these species and answering the study questions included the placement of 40 wildlife cameras and winter tracking for two consecutive years. Wildlife cameras were placed at the larger existing culverts, the Little River bridge, along transects perpendicular to the roads, and in some locations more distant from the main roads. Winter tracking was undertaken at least twice each winter along transects, I-89, and a local road.


Document Type: pre-mitigation monitoring guidelines
Project Type:
Infrastructure Asset: existing roadway large underpass medium underpass
Fauna: small mammals medium mammals large mammals