ADA CHECKLIST Issue 5/10/23 Effective 9/1/2023
Project No. ______________
City ____________________
Location __________________________________________________
PEDESTRIAN SIDEWALKS Figures/Definitions Sidewalk Width
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Width Measurements: All width dimensions shall be exclusive of the width of adjacent curb.
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Pedestrian Access Route: A continuous and unobstructed path of travel provided for pedestrians with disabilities within or coinciding with a pedestrian circulation path.
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Pedestrian Circulation Path: A prepared exterior or interior surface provided for pedestrian travel in the public right-of-way.
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Running Slope: The grade that is parallel to the direction of travel, expressed as a ratio of rise to run or as a percent.
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Requirements 1 Sidewalks within St. Louis County right of way shall be 5 feet wide minimum for arterial (ARS), collector (CRS-2), and non-residential (CRS) roads. Clear width may be reduced to 4 feet only when necessary to avoid obstacles which cannot be practicably relocated. 2 Sidewalks shall have a continuous and unobstructed clear width of 4 feet wide minimum along residential (CRS) subdivision streets. Where 4’ sidewalks are provided, 5 foot x 5 foot passing spaces shall be provided at intervals of 200 feet maximum. Driveway approaches may be used to meet the passing space requirement. St. Louis County Sidewalks located within 2 feet of the back of curb are to be constructed 6 feet wide minimum and constructed adjacent to the back of the curb for all development types. 2 Detectable warning surfaces shall be provided, where a pedestrian access route connects to or crosses a street, signalized commercial entrance, commercial driveway permitted to operate like a public street, pedestrian rail crossings, or pedestrian refuge island. Where sidewalk stubs are constructed with no pedestrian outlet, a turning space shall be constructed at the sidewalk terminus with a minimum width as defined by the road classification2 and a minimum length of 4 feet. The turning space shall have a maximum running slope and cross slope of 2.0 percent. The Road Grade Exception is not applicable to this pedestrian access route feature. 2 The running slope of a pedestrian access route shall be 5 percent maximum where not contained within a roadway right-of-way and where the pedestrian access route exceeds the general grade of the adjacent roadway. Where sidewalks are contained within a street or highway right-of-way, the grade of the sidewalk is permitted to equal the general grade established for the adjacent street or highway. This exception does not apply within a cross walk.
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