Conn. Agencies Regs. § 13b-17-27
An application for permit to construct, reconstruct or repair a sidewalk, curb or steps within the highway right of way shall contain definite information as to width and length and the materials to be used. The location of new installations with respect to the right of way lines or other established lines or objects shall be determined by the District Maintenance Manager. Sidewalks shall be located, wherever possible, so as to give not less than eight feet from edge of shoulder to the near edge of the walk in order to provide protection for pedestrians and to have a storage area for plowed snow. The location and grade of sidewalks and curbs will be approved by the State subsequent to a conference with the local municipal authorities relative to the permit applicant's proposal. At no time shall steps be constructed closer to the travelway than eight feet from the back edge of the shoulder, gutter or curb. Steps closer than 30 feet from the edge of the travelway shall not protrude above the surrounding slope.
Handicap ramps conforming with Connecticut General Statutes, Sec. 7-118a, shall be incorporated in all proposed sidewalks at all street intersections, and at all other locations where the grade of a driveway or other facility takes precedence over the grade of the proposed sidewalk.
Conn. Agencies Regs. § 13b-17-27