See the Southold Town Code, Chapter 240, Subdivision of Land, for sketch plan requirements.
A. 
Highways shall be designed to the requirements of 200 feet of visibility on horizontal curves, depending on the curve data as specified herewith. Profiles shall be designed to provide satisfactory sight distance of not less than 200 feet at vertical curves.
B. 
Plans and profiles for all proposed paved roads shall be laid out in a center line station numbering system. Plans shall show all drainage pipes, drainage structures, recharge basins, etc. Profiles shall show original ground elevations from field survey and the percent of proposed grades between stations and drainage structures where applicable.
C. 
Profiles for all roads shall be at a scale of one inch equals five feet vertical and one inch equals 50 feet horizontal.
D. 
Drainage structures shall show such details as location, pipe sizes, depth of excavation, type of catch basins and manholes, headwalls, recharge basins and leaching systems. Necessary easement for drainage facilities and for side slopes shall also be shown.
E. 
A test hole will be required at the proposed site for each recharge basin Type A. The test hole must indicate sand and gravel at least five feet below design depth.
F. 
Borings shall be taken at two-hundred-foot intervals for a depth of four feet in the roadway to determine the type of soil present. This information shall be shown in the construction plans.
Final plans shall be submitted, upon receipt of written approval, and the return of one copy of the preliminary plan approved, or approval as corrected, as follows:
A. 
Final plans and profiles shall be to scales as indicated for preliminary plans showing actual distances along roads.
B. 
Exact location and types of all drainage structures.
C. 
Exact location of curbing and sidewalks.
D. 
Exact location of all easements.
E. 
Location of street trees.
F. 
Exact location of all streetlights when required.
G. 
Exact location of all fire wells when required.
H. 
Concrete monuments, four inches by four inches by 30 inches, shall be shown at all changes of alignment, at points of curvature and tangency and at 100 feet along curves. These monuments, together with the beginning and ending of all roads, shall be shown on both sides of the highway.
A. 
Construction plans shall be submitted for approval upon return of final plans. Six copies of construction plans shall be submitted.
B. 
No work shall be done on major subdivision projects until approved construction plans have been received by the subdivider.
C. 
The plans shall be at a minimum scale of one inch equals 100 feet. All roads shall show beginning and ending stations.
D. 
Roadway profiles shall be at a scale of one inch equals five feet vertically and one inch equals 50 feet horizontally.
E. 
Profiles shall show original ground elevations, grades, stationing and elevations of grade intersections, length and corrections for vertical curves, including high and low points and drainage structures where applicable.
F. 
Drainage structures shall be exactly located by stations with details showing cover elevation, invert elevations, size and type of pipe and type of structure. Separate drawings shall be shown on the plans for drainage structures showing classification, type of grate, frames, covers, rings, size and number. Complete details for each type of recharge basin Type A shall also be shown separately.
G. 
Typical road sections shall indicate width of right-of-way and easements, width of pavement, type of pavement showing surfacing and base material, sidewalks, type of curbs, road crown and shoulder grading.
H. 
All boring information, as required, shall be shown on construction plans.
I. 
Streetlights shall be exactly located by stations with details showing standards, luminaries, conduit runs, service splice boxes, fuses, wiring circuits and all related hardware for streetlighting systems. Plans shall include a Long Island Lighting Company power source and shall be prepared by a professional engineers licensed to practice in the State of New York.
J. 
The Highway Department and the Construction Inspector shall be notified two days before each phase of construction is begun if different from construction schedule.