Specifications include, but are not limited to: Task A – Construct multi-use motorized trail The east-west multi-use trail will provide a pass-through route for summer ATV’s and winter snowmachine “commuters,” as well as for non-motorized trail users wanting to cross between points east and west. The trail will run from Beaver Road to the state easement north of the Talkeetna Bluffs Trail. The intent is to locate and design the eastern trail intersection in order to minimize incidental traffic entering the Ridge Trail system from the Talkeetna Bluffs Trail. The trail must meet the Alaska State Parks ATV Trail Class 4 and include adequate entry barriers to restrict vehicles greater than five foot six inches in width with a minimum turn radius of 30 feet. Class 4 ATV Trail Design Parameters Design tread width: 60”- 72” Design surface: Native, with imported materials for tread stabilization, Sections of soft tread uncommon, minor roughness; Protrusions less than or equal to 3” uncommon and discontinuous; Obstacles up to 3” uncommon. Design Grade: - Target Grade 3% - 10%; Short Pitch Maximum 15%; Maximum Pitch Density 10% - 20% of trail. Design Cross Slope: Target Cross Slope - 3% - 5%; Maximum Cross Slope – 8%. Design Clearing: Height – 8’ – 10’; Width 72” – 96” (on steep side hills, increasing clearing on uphill side by 6” – 12”). Design Turn: 8’ – 12’