[Ord. No. 192 §400, 12-2-1986; Ord. No. 729 §7, 8-1-2011]
To minimize development planning costs and ensure compliance with the requirements of this Article, a pre-application meeting is required prior to submission of a preliminary plat. This meeting must be scheduled by the subdivider and his/her engineer with the City Administrator, Director of Public Works and the City's Engineer.
[Ord. No. 192 §500, 12-2-1986; Ord. No. 650 §§1 — 2, 3-2-2009; Ord. No. 932, 9-6-2018; Ord. No. 1059, 10-3-2022]
A. 
Procedure. On reaching conclusions as recommended in the pre-application regarding his/her general program and objectives, the subdivider shall have prepared a preliminary plat, together with improvement plans and other supplementary requirements in conformance with Section 410.070 of these regulations. All preliminary plats and supplementary materials specified shall be submitted at least ten (10) days prior to the next regular meeting of the Planning Commission as follows:
1. 
Five (5) copies shall be submitted to the Building Inspector.
2. 
The Building Inspector shall forward copies of the preliminary plat to the City Engineer and City staff for review.
3. 
Planning Commission To Approve Plats — When. After approval from the City Engineer and staff, the preliminary plat will be forwarded to Planning and Zoning (P & Z) for their approval. Within sixty (60) days after the submission of a plat to the P & Z, the P & Z shall approve or disapprove the plat; otherwise, the plat is deemed approved by the P & Z, except that the P & Z, with the consent of the applicant for the approval, may extend the sixty (60) day period. The ground of disapproval of any plat by the P & Z shall be made a matter of record.
4. 
Conditional approval of the preliminary plat shall not constitute approval of the final plat, but rather it shall be deemed an expression of approval to the layout submitted on the preliminary plat as a guide to the preparation of the final plat which will be submitted for approval of the Planning Commission and for recording upon fulfillment of the requirements of these regulations and the conditions of the conditional approval, if any.
5. 
Prior to the approval of the preliminary plat, the Planning Commission may require due consideration by the subdivider for dedication or reservation of suitable sites for schools, parks, playgrounds, or other public recreational areas or open spaces. Any areas so dedicated or reserved shall conform as nearly as possible to the recommendations of the Planning Commission in its Comprehensive Development Plan of the City.
B. 
Requirements.
1. 
The scale of the preliminary plat shall not be less than one (1) inch equals one hundred (100) feet on a sheet of sufficient size.
2. 
The preliminary plat shall contain the following information:
a. 
Proposed name of subdivision. Names shall not duplicate or closely resemble names of existing subdivisions.
b. 
Location of boundary lines in relation to section, quarter section or quarter-quarter section lines and any adjacent corporate boundaries, comprising a legal description of the property.
c. 
Names and addresses of the developer and the surveyor or landscape architect making the plat.
d. 
Date, northpoint and scale.
3. 
Existing conditions which shall be shown:
a. 
Locations, width, and name of each existing or platted streets or other public way, railroad and utility right-of-way, parks and other public open spaces, and permanent buildings within or adjacent to the proposed subdivisions.
b. 
All existing sewers, water mains, gas mains, culverts, or other underground installations within the proposed subdivision or immediately adjacent thereto with pipe size, grades and locations shown.
c. 
Names of adjacent subdivisions and owners of adjacent parcels of unsubdivided land.
d. 
Topography with contour intervals of not more than five (5) feet; also, the locations of watercourses, ravines, bridges, lakes, wooded areas, approximate acreage and such other features as may be pertinent to the subdivision of the property.
e. 
Subsurface conditions on the tract if deemed necessary by the Planning Commission.
f. 
Location of sinkholes shall be shown, noting the sinkhole eye and the sinkhole rim as well as the 100-year flood elevation.
4. 
Proposed development which shall be shown:
a. 
The location and width of proposed streets, roadways, alleys, and easements.
b. 
The location and character of all proposed public utility lines, including sewers (storm and sanitary), water, gas, and power lines.
c. 
Layout, numbers, and approximate dimensions of lots.
d. 
Location and size of proposed parks, playgrounds, churches or school sites, or other special uses of land to be considered for dedication to public use or to be reserved by deed of covenant for the use of all property owners in the subdivision and any conditions of such dedication or reservation.
e. 
Building lines with dimensions, if required.
f. 
Indication of any lots on which use other than residential is proposed by the subdivider.
g. 
Any protective covenants proposed by the subdivider.
h. 
Front yard setback lines according to this Chapter and the zoning regulations.
i. 
In a proposed subdivision, pending accessibility of the City water supply, the subdivider may be required to construct wells or a private water supply system in such a manner that an adequate supply of potable water will be available to every lot in the subdivision at the time improvements are erected thereon. The adequacy, healthfulness and potability of the water supply shall be subject to the approval of the State Board of Health or other State regulatory agency. The construction of the water supply system shall be subject to the approval of the City.
5. 
Lots.
a. 
All lots shall have a full frontage on a dedicated public street.
b. 
Lot dimensions and areas shall conform to the requirements of this Chapter and the City zoning regulations, provided, further, that no lot, irrespective of use, shall be less than ten thousand (10,000) square feet for any subdivision of land under these regulations.
c. 
All side lot lines shall be at right angles to straight street lines and radial to curved street lines where practicable.
d. 
Building lines (when applicable) or setback lines shall be shown on the preliminary and final plats for all lots in the subdivisions and shall not be less than the building or setback lines required by the City zoning regulations.
e. 
Corner lots shall have such extra width as will permit the establishment of building lines on both streets.
f. 
House numbers shall be assigned to each lot by the City.
6. 
Storm Siren.
a. 
Storm sirens compatible with the City's storm siren system will be installed in all platted subdivisions of twenty-five (25) units or more. If the subdivision is connected to pressurized sanitary sewer lines, the location of storm sirens will be within the fenced lift station area and connected to the emergency generator. Storm siren locations for subdivisions fed by gravity sewer will be subject to approval by the Administrator.
C. 
Supplementary Requirements.
1. 
A copy of profiles shall be furnished for each proposed street showing existing grades and proposed approximate grades and gradients on the centerlines of the street. The location of proposed culverts and bridges shall also be shown.
2. 
Developer shall pay any costs the City is required to pay an outside reviewer for review or examination of site plans and infrastructure plans for proposed subdivision and the cost of City officials inspection and review of such areas as necessary to insure proper Code compliance at a rate to be set by the Board of Aldermen.
3. 
The fees and costs listed above shall remain as the correct fees and costs until the Board of Aldermen specifically direct and order otherwise. No ordinance shall be effective to change these fees and costs unless said ordinance directly refers to this Section within said ordinance.
D. 
Expiration Of Preliminary Plat.
1. 
The preliminary plat approval shall be for a period of one (1) year from the date of approval. In the one (1) year period, the subdivider shall submit construction plans approved by City review, construct improvements according to the approved plans and submit the final plat for approval.
2. 
The subdivider can apply for an extension of the preliminary plat for a period of one (1) year from the date of original preliminary plat approval.
3. 
Continuing authority statements for sewer treatment plant capacity shall be rescinded for projects whose preliminary plat approval has expired.