(A) The developer shall notify the Director of Public Works or Subdivision Administrator 24 hours in advance before each improvement is installed at the development.
(B) Improvement plans shall be prepared on an exhibit measuring 24 by 36 inches and shall contain the following information:
(1) Title page, which shall include a key map showing the relationship of the area to be subdivided to the project area, and which shall reflect areas of the project area previously subdivided plus adjacent streets.
(2) North arrow and graphic scale.
(3) Title block showing name and address of developer and engineering firm, as well as the engineer’s seal.
(4) One or more bench marks, in or near the subdivision, to which the subdivision is referenced. The elevation shall be based on the sea level datum.
(5) List of the standards and specifications followed, citing volume, section, page or other references.
(a) Sanitary sewers, indicating:
1. Location;
2. Size;
3. Manholes (spaced apart not more than 400 feet);
4. Invert elevations at manholes.
(b) Culverts, indicating:
1. Type;
2. Location;
3. Size;
4. Invert elevation.
(c) Water main layout, indicating:
1. Location;
2. Size;
3. Looped pattern where practicable;
4. Fire hydrants, spaced apart not more than 400 feet from any lot line and proposed as necessary for fire protection by the Waterloo Community Fire Protection District;
5. Valves, indicating:
a. Valve manhole; or
b. Valve box.
(d) Storm sewer layout, indicating:
1. Location;
2. Catch basins at intervals not more than 300 feet;
3. Storm water is not carried across or around any intersection;
4. Surface water drainage pattern for individual lot and block.
(6) Paving details, including the location of all Type A expansion joints.
(7) Details of streets, including locations of curb ramps, existing and proposed sanitary sewers, water lines, drainage channels, swales, and storm sewers.
(8) Plans and profiles of streets, storm and sanitary sewers, water lines and other improvements. The plans and profiles shall be drawn at a scale not more than 100 feet to the inch (1 inch = 100 feet) horizontal; and one inch equals ten feet (1 inch = 10 feet) vertical.
(9) Plans of utility access roads required after March 5, 2012.
(10) Any structural or non-structural measure proposed to prevent soil erosion and sediment control must be shown or included in a statement accompanying the improvement plans.
(11) Existing and proposed survey monuments on street plans or on the proposed final plat.
(12) Lowest floor elevations to be shown on plans. One and one-half feet above curb level is suggested for first floor elevation.
(13) Final grading plan shall be incorporated into improvement plans with proposed and existing contours shown at one-foot contour intervals.
(14) All required structural details for bridges, culverts, nonstandard pump station wet wells, manholes, and the like shall be included in the improvement plans. The design drawings for precast wet wells, manholes, culverts, headwalls, and the like shall be referenced IDOT standards included in the plans or standard shop drawings submitted during construction. All drawings for bridges and nonstandard opening culverts shall be signed by an Illinois registered structural engineer.
(15) The signature and seal of an Illinois registered professional engineer.
(16) A cost estimate of the proposed improvements prepared by a professional engineer registered in the State of Illinois.
(17) Certification by the owners in fee as follows:
[Developer] hereby certifies that the drainage facilities for [X, name of development] shall be constructed according to the design presented in these plans and in the drainage report. I understand that the City of Waterloo does not and will not assume liability for the drainage facilities designed and or certified by my engineer. I understand that the City of Waterloo reviews drainage plans but cannot, on behalf of [X, name of development], guarantee that final drainage design review will absolve [developer] and/or their successors and/or assigns the future liability for improper design.
(Ord. 1069, passed 7-20-1998; Am. Ord. 1378, passed 6-26-2006; Am. Ord. 1527, passed 9-8-2009; Am. Ord. 1597, passed 3-5-2012; Am. Ord. 1696, passed 3-21-2016) Penalty, see § 34-1-12