All subdivision and land development applicants shall submit improvement construction plans whenever any site improvement is planned or required. Improvement construction plans shall consist of plan-profile drawings of all proposed new streets, all existing streets proposed to be widened or improved, all easements associated with improvement construction and all proposed underground construction. Also included shall be lot grading plans, a soil erosion and sedimentation control plan in conformance with all applicable Pennsylvania Department of Environmental Resources, Bucks County Conservation District, and U.S. Natural Resources Conservation Service regulations and such additional drawings as required to detail the construction of all proposed subdivisions and land developments.
A. The improvement construction plan shall be at any of the following scales or other accepted design scales as approved by the Borough Engineer:
Horizontal | Vertical |
|---|
20 feet per inch | 2 feet per inch |
50 feet per inch | 5 feet per inch |
100 feet per inch | 10 feet per inch |
B. Horizontal plan (streets). The horizontal plan shall show details of the horizontal layout, including:
(1) Center line with bearings, distances, curve data and stations corresponding to the profile; horizontal sight distances for intersections.
(2) Right-of-way and curblines with radii at intersections.
(3) Beginning and end of proposed construction.
(4) Tie-ins by course and distances to intersection of all public roads, with their names and widths.
(5) Location of all monuments with reference to them.
(6) Property lines and ownership of all properties within the site and abutting properties.
(7) Location and size of all drainage structures, sidewalks, public utilities, lighting standards, and street name signs.
C. Horizontal plan (storm drains and sanitary sewers):
(1) Location and size of pipeline with stations corresponding to the profile plan.
(2) Location of manholes or inlets with grade between and elevation of flow line and top of each manhole or inlet.
(3) Property lines and ownership of abutting properties and within the site lot lines and numbers, with details of easements where required.
(4) Beginning and end of proposed construction.
(6) Location of all other drainage facilities and public utilities in the vicinity of storm and/or sanitary sewer lines.
(7) Hydraulic design data for culverts and/or bridge structures.
D. Profile (streets):
(1) Profile of existing ground surface along center line of street; profiles along cul-de-sac curblines. All profiles shall show high and low points and passing/slopping distances per PennDOT requirements.
(2) Proposed center-line grade with percent on tangents and elevations at fifty-foot intervals, grade intersections, and either end of curb radii.
(3) Vertical curve data, including length, elevations and minimum sight distance, as required by the Borough Engineer.
E. Cross section (streets): refer to Appendix A.
(1) Right-of-way width and location and width of paving; cross section and cross slope of paving.
(2) Type, thickness and crown of paving.
(4) Grading of sidewalk area and adjacent slopes.
(5) Location, width, type, and thickness of sidewalks and driveway aprons.
F. Profile (storm drainage and sanitary sewers).
(1) Typical location of sewers, storm drains and utilities, with sizes.
(2) Detail of typical street cross sections.
(3) Profile of existing ground surface with elevations at top of manholes or inlets.
(4) Profile of storm drain or sewer showing type and size of pipe, grade, cradle, manhole, and inlet locations, and elevations along flow line at fifty-foot intervals.