Several Kingfield residents oppose a Bowdoin College proposal to build a campground at the college-owned Finnegan McCoul Woodruff Mountain Center, citing safety concerns over potential traffic hazards at the Route 27 and Iron Bridge Road intersection, across the single-lane bridge and along the steep, icy winter approach to the site. Photo by Ashton F. LeCraw.KINGFIELD — Voters approved a 180-day moratorium on transient overnight recreational de…