A. Purpose: The following instructions are for the purpose of standardizing the preparation of drawings to obtain uniformity in appearance, clarity, size and style.
B. Number Submitted: The construction plans shall be submitted in triplicate (minimum) with two (2) approved sets to be retained by the city engineer and one approved set returned to the subdivider. This set shall be kept available at the construction site. Specifications shall accompany the plans where pertinent.
C. Information Required: The plans and designs shall meet the standards and specifications hereinafter outlined. The minimum information required on drawings for public works improvements are as follows:
1. Plans And Profiles: Plans and profiles and all construction drawings shall be submitted in triplicate on twenty four inch by thirty six inch (24" x 36") drawings. Drawings shall have a one and one-half inch (11/2") border on the left and a one-half inch (1/2") border on the three (3) remaining sides. All drawings shall be complete, clear and legible and shall conform to the accepted standards of the profession. Illegible or poorly drawn drawings shall be returned without action and will be considered as having received a preliminary review. In general, the following should be included on drawings:
a. North arrow (plan).
b. Scale, benchmark datum and elevations, including the location of permanent bench marks and their true elevations according to USGS or the city's datum. All profiles and construction drawings shall be drawn using true elevation.
c. Complete data for field layout and office checking.
d. Stationing and elevations for profiles.
e. Title block, located in lower right corner of sheet to include:
(1) Name of city.
(2) Project title (subdivision, etc.).
(3) Specific type and location of work.
(4) Space for approval signature of city engineer and date.
(5) Name of engineer or firm preparing drawings with license number and sealed by the responsible engineer.
f. As built drawings shall be reproducible on Mylar and shall be furnished to the city engineer upon completion of the improvements. The city will retain the improvement guarantee until such plans have been furnished in a manner acceptable to the city engineer.
g. All printing and drawing shall be done using black India ink or waterproof plotter ink with clear, legible and uniformly sized letters, numbers and lines. The size of the lettering and width of lines shall vary according to the needs of clarifying and identifying the various items constructed and establishing clear and concise vertical and horizontal control.
h. Plan and profile drawings will include details of curb and gutter; sidewalks; street cross sections; locations and elevations of manholes, catch basins, storm sewers and their appurtenant works; elevations and location of fire hydrants, water mains, type of pipe, valves and their appurtenant works; location, size and elevations of sanitary sewer mains, their grades and type of pipe (rubber gasket mandatory); manholes, cleanouts; and other appurtenant works. The drawing shall include the details for a nonculinary (irrigation) water system, indicating size, location and kind of pipe, valves and turnouts. All stationing must coincide with existing stationing as shown on existing city drawings. Engineer's station equations will not be approved except at street intersections where the stationing of the intercepting street will be shown as well as the stationing of the intercepted street.
2. Curbs And Gutters, Drainage Structures, Sidewalks And Streets: Curb and gutter, drains and drainage structures, sidewalks and street surfacing drawings should show:
a. Scale one inch equals fifty feet (1" = 50') horizontal, one inch equals five feet (1" = 5') or one inch equals ten feet (1" = 10') vertical.
b. Profiles shall indicate finished and existing grades for the centerline and each side of the street at the curb-gutter line, and shall extend a minimum of two hundred feet (200') beyond the limits of the proposed project. Cross sections shall be provided when requested by the city engineer.
c. Stationing and top of curb elevations with curve data must be shown for all curb returns, and at least one additional control point for elevations besides those at the PC (point of curvature) and PT (point of tangency), shall be indicated on the plans and staked in the field to ensure drainage at the intersections.
d. Type of cross drainage structures at intersections with adequate flow line elevations.
e. Benchmark location and elevation (use USGS datum where possible).
f. Type of curb and gutter and distance back to back of curb.
g. Elevations for the top of curbs and road centerlines shall be shown on the plans for all PCs, PT and at all BVCs (begin vertical curve) and EVCs (end vertical curve).
h. Complete curve data must be shown for all horizontal and vertical curves. The minimum length of vertical curve is two hundred feet (200') unless otherwise approved.
i. Street monuments to be installed by the subdivider's engineer or land surveyor and shall be designated on the final drawings and approved by the city engineer. The monuments must be accurately set at the approved locations prior to release of the improvement bond.
j. The subdivider's engineer will, when requested by the city engineer, furnish copies of the field notes relating to any or all of the work prepared or done.
3. Sewer: Sewer drawings should show:
a. Scale one inch equals fifty feet (1" = 50') or one inch equals one hundred feet (1" = 100') horizontal, one inch equals five feet (1" = 5') or one inch equals ten feet (1" = 10') vertical.
b. Location, size and grade of pipe.
c. Location and elevation of catch basins and all appurtenant facilities.
d. Manhole size, location and flow elevation.
e. Type of pipe (rubber gasket joints required).
f. Benchmark location and elevation.
4. Water: Culinary and secondary water drawings should show:
a. Scale (not specified).
b. Size and location of water mains, valves, fittings and hydrants.
c. Kind of pipe.
d. Minimum cover.
5. Detail Drawings: Each set of plans shall be accompanied by a separate sheet of structure details which are to be constructed. All structures shall be designed in accordance with minimum standards of these specification drawings requirements:
a. Drawing size: Twenty four inches by thirty six inches (24" x 36").
b. Scale of each detail.
c. Title block, lower right hand corner (same format on all sheets) including the name of the subdivider.
d. Completely dimensioned and described. (Ord., 2-29-1996)