x Review of bridge design and certification x Calculation package x Site preparation (This is a crucial element for installation and should be included) x Bridge assembly and placement (Specify if this is part of the installation) x Guard rail installation (Should be explicitly mentioned) x Final inspection and handover Deck Width: Specified widths need to be suƯicient to accommodate wheelchairs and other mobility devices. MINIMUM CLEAR WIDTH 36 inches. x Deck Surface: The deck surface must be firm, stable, and slip resistant. x Cross Slope: The maximum allowable cross slope for the bridge deck is 1.5%. x Running Slope (Longitudinal Slope): The maximum allowable running slope (incline) of the bridge is 7.5% x Guardrails/Handrails: x Height: A consistent height of 34 to 38 inches above the walking surface x Continuity: Handrails should be continuous along the entire length of the accessible pathway. x Gaps: the clearance between the handrail gripping surface and any adjacent surface must be 1 1/2 inches. Additionally, the handrails must be continuous and extended beyond each end post. x Graspability: ADA handrails should have a circular cross-section diameter of 1.25 to 2 inches or a non-circular perimeter between 4 and 6.25 inches. x Extensions: Consider requiring handrail extensions at the top and bottom of ramps or slopes. x Transitions: Ensure smooth transitions between the bridge deck and the approaches to minimize tripping hazards.
