Morrisville Engineering, Design, and Construction Manual - July 2016

Section 4: Access and Circulation 4.4 Sidewalks, Greenways, and ADA Accessibility 4.4.1 General

Private Streets and Drive Aisles The placement of the signage and markings shall be consistent with MUTCD and NCDOT standard specification and drawings, and shall be constructed of pavers (brick or concrete) or stamped concrete of a contrasting color.

4.4. SIDEWALKS, GREENWAYS, AND ADA ACCESSIBILITY

General

4.4.1.

Accessible routes adjacent to and within the site must be identified on the Site Plan Approval application. Certain improvments to existing sites may require the development to be brought into compliance with current ADA standards. Construction Plans Approval applications must provide sufficient spot elevations on the grading plan to show the accessible routes are in accordance with the current ADA requirements and guidelines.

Sidewalks

4.4.2.

Sidewalks shall be provided in accordance with Section 5.8.8.A.2, Sidewalks Required, of the UDO.

Sidewalks shall be installed at the time of roadway construction or widening, or prior to the Certificate of Compliance/Occupancy, unless otherwise approved by the Town. The minimum thickness of a sidewalk shall be 4 inches. A 6-inch depth is required with reinforcement at locations where a driveway crosses a sidewalk, at street intersections (along the length of radius curb returns), at utility (including stormwater) access easements, and in ADA accessible ramps. Sidewalks shall have a uniform slope toward the roadway (cross-pitch) of 2% maximum. The utility strip between the sidewalk and the back of curb shall also slope toward the roadway at a minimum of 2%. Sidewalks shall be located as required by the Comprehensive Plan, with a minimum width of 5 feet. Sidewalks shall be a minimum of 6 feet wide where abutting a curb. Wider sidewalks may be required to comply with greenway and planned pedestrian routes as determined by the Comprehensive Plan. See Appendix C: Standard Details & Notes. Where sidewalks and/or greenways intersect any section of curb and gutter, an ADA accessible ramp shall be installed. No stormwater conveyance (ditch, swale, etc.) or drainage pipe shall drain across the surface of sidewalks. Greenway and multi-use paths shall be provided in accordance with Section 5.8.8.B, Greenway Paths Required, of the UDO and the Comprehensive Plan. Greenway and multi-use alignment shall be finalized with the Director of Parks, Recreation and Cultural Resources prior to Preliminary Plat Approval or Site Plan Approval, with full construction plans and all permits provided prior to Construction Plan Approval for any project on which greenways are required. Greenways and multi-use paths shall conform to the greenway design standards in Appendix V of the Town’s Parks and Recreation Master Plan. The following additional standards not included in the appendix shall also apply: 1. At all drainage crossings a design professional shall provide properly sized drainage pipe with supporting calculations to pass the 10-year, 24-hour storm. 2. Greenways and multi-use paths shall be located and constructed so as to prevent damage from floodwaters. Greenway and Multi-Use Paths

4.4.3.

Morrisville, NC

July 2016 Page 27

Engineering, Design, and Construction Manual