Raymond Road Initiative

Why Raymond Road?

Raymond Road was selected for conservation efforts because it cuts through a low-lying swamp, where the road’s shoulders have historically served as resting and nesting grounds for several turtle species. This close alignment with wetland habitat makes turtles more likely to cross the road, leading to one of the highest turtle mortality rates in Sudbury. In addition to turtles, other wildlife species that inhabit the swamp also frequently cross the road and face similar risks, resulting in broader impacts on local biodiversity. Its location and impact on local turtle populations made it a clear choice for our Turtle Migration Project.

Research

Agencies in Massachusetts and New Hampshire emphasize that even small increases in adult turtle mortality can lead to long-term population declines, making these interventions essential. Extensive research from conservation scientists, state agencies, and infrastructure experts consistently demonstrates that turtle fencing, paired with properly designed under-road crossings, is a highly effective method for reducing turtle mortality and protecting population stability. These measures are especially critical for long-lived species, such as Blanding’s and painted turtles, which face severe threats from roads during their seasonal movements. Studies have found that such structures can reduce roadkill by over 90% when installed correctly, using appropriate materials, fence height, and alignment with natural turtle behavior. Effective designs prevent turtles from climbing or digging under the fence and guide them safely toward culverts or tunnels. Additionally, case studies highlight that success depends on proper placement, community involvement, long-term maintenance, and monitoring. Together, these findings make turtle fencing a research-backed, practical solution for reducing human impacts on vulnerable wetland species.

For more information, see:
🔗 Massachusetts Turtle Guide
🔗 New Hampshire Blanding’s Guidance PDF
🔗 Conservation Science & Practice Journal
🔗 Minnesota LTAP Turtle Crossing
🔗 Orianne Society Article

The Turtle Fence

The Raymond Road Project applied the above research-based methods to guide the design of its temporary turtle fence. Drawing from regional best practices, the fence was built using smooth materials that prevent turtles from climbing. Its height meets established standards shown to discourage turtles from attempting to cross, while the bottom edge is buried underground to deter turtles from digging beneath it. Though the installation is seasonal, the fence mirrors permanent wildlife barrier designs and effectively channels turtles toward safer areas, significantly reducing the likelihood of road crossings and collisions.

Setting It Up

Our dedicated team of staff and volunteers worked over 80 hours to install, monitor, and maintain the turtle fence. This project succeeded thanks to their hard work, passion, and perseverance. Their efforts, along with the continued support and cooperation of the local community, made it all possible. We deeply appreciate everyone’s efforts in helping protect our vulnerable turtle populations.

Take a look at the setup process for the turtle fence!