As prime consultant to the Department of Environmental Management (DEM), Nitsch Engineering is providing civil engineering and land surveying services for safety improvements to an 18-mile segment of the Cape Cod Rail Trail in Dennis, Harwich, Brewster, Orleans, and Eastham. This trail is a multi-use path that attracts more than 400,000 users per season and is nearing 20 years in age. Nitsch Engineering developed a project approach to upgrade the trail from its present 8-foot-wide paved path to 10 feet, which would be acceptable to the five local Conservation Commissions. To prevent future slope erosion by trail users and stormwater, bioengineering techniques along with traditional slope revegetation were used to stabilize the slopes. In addition, because the bike path’s grades and sharp radii into the Route 6 underpass in Eastham resulted in many accidents, Nitsch Engineering’s design increased the approach radii to the underpass and lessened the immediate grade, while reusing the existing precast concrete retaining wall system. We also assisted DEM (in partnership with Coastal Zone Management) in restoring the salt marsh at Boat Meadow Creek crossing; using incremental tide data, Nitsch Engineering provided hydraulic analysis to resize and improve the 36-inch Boat Meadow Creek culvert. Permitting services included preparing Environmental Notification Forms under MEPA and Notices of Intent for submittal to each of the five local Conservation Commissions.