The CTDOT considers that care of trees within the state right of way (ROW) a high priority. Trees statewide are still being severely stressed by several factors. Notably Emerald Ash Borer, Spongy Moth infestations, drought conditions and the spotted lanternfly have impacted Connecticut vegetation.
In our public highway ROW there needs to be a 30 foot clear zone. This provides an un-obstructed, impact free buffer or clear area for vehicles unintentionally exit the roadway. There may be certain trees that are outside of that 30 foot clear zone that may need to be removed due to the potential impact to one or both travel lanes in the event of a vehicle failure.
CTDOT is continuing to prioritize areas within the four Districts and using state forces, contracted tree crews and specialized equipment to re-establish acceptable clear zones. Supervisors and Landscape Designers establish cutting limits in relation to abutting property or environmentally sensitive areas. Reviews for proposed large-scale tree cutting projects as well as work being performed within designated scenic roads are conducted in advance by the Central Maintenance Landscape Designer (CMLD) and the Central Maintenance Environmental Planner (CMEP). The Office of Environmental Planning (OEP) in conjunction with the CMEP assist the districts with identifying vegetation removal within and directly adjacent to environmentally sensitive areas. These areas may include but are not limited to watercourse crossings, wetlands, aquifer protection areas, watersheds, areas containing endangered, threatened, and special concern species, as well as areas containing scenic/historical resources. The CMEP and OEP staff educate district staff with the Best Management Practices (BMPs) to be implemented when working within and directly adjacent to environmentally sensitive areas.
Removal of overhead trees and vegetation also increases sunlight onto road surfaces, which in turn, raises pavement temperatures. During winter storms this increase in road surface temperatures has been proven to accelerate improved road conditions, reduce labor and equipment costs as well as the amount of winter deicing materials. Established clear zones also create roadside succession of vegetation, which promotes pollinator habitat within the right of way. The CTDOT established a Pollinator Program in 2017 to create pollinator habitat areas within the state right of way. The program has expanded from 8 original Conservation Areas (CAs) to 116 CAs and comprises approximately 200 acres statewide. The CTDOT is completely committed to the safety of the motoring public and the efficiency of the state’s transportation network. At the same time, the CTDOT understands the aesthetic and environmental value of healthy vegetation and trees. As such, the CTDOT will continue to make reasonable efforts to preserve trees and aesthetic appeal if safety and/or efficiency will not be compromised by doing so.