Chapter 16.20
IMPROVEMENTS

Sections:

16.20.010    General requirements.

16.20.020    Construction plans and specifications to be furnished when.

16.20.030    Construction plans and specifications—Approval of city engineer.

16.20.040    Construction and inspection.

16.20.050    As-built plans.

16.20.060    Survey monuments.

16.20.070    Acceptance of dedications, improvements.

16.20.080    Design standards—Streets.

16.20.090    Design standards—Alleys.

16.20.100    Design standards—Sanitary sewer system.

16.20.110    Stormwater sewerage or surface drainage system—Required when.

16.20.120    Design standards—Water supply and distribution.

16.20.130    Design standards—Street signs, guard rails, landscaping.

16.20.140    Oversize design.

16.20.150    Trees.

16.20.160    Final construction plans.

16.20.170    Material standards.

16.20.180    Acceptance of subdivision improvements in stages.

16.20.190    Penalty for violation of this chapter.

16.20.010 General requirements.

A.    Improvements Completed. All of the improvements required under this chapter shall be constructed in accordance with its provisions prior to the filing with the city clerk of the final plat for final approval by the council.

B.    Optional Completion of Improvements. In lieu of constructing the improvements in subsection A of this section, security may be furnished as provided in Section 16.08.050.

C.    Guarantee of Material and Workmanship. The subdivider shall provide a guarantee bond or security running to the city for a period of one year after completion of construction in an amount established by the council. (Ord. 2102-07 § 1 (part), 2007)

16.20.020 Construction plans and specifications to be furnished when.

After filing the preliminary plat, or sooner if the developer prefers, two copies of construction plans and specifications, prepared by a professional engineer registered in Wisconsin, shall be furnished for the following subdivision improvements where those improvements are required by this section or are to be installed voluntarily by the developer.

A.    Streets;

B.    Sanitary sewerage system;

C.    Stormwater drainage and including sewers;

D.    Curb and gutter;

E.    Street lights;

F.    Water supply and distribution;

G.    Public utility locations;

H.    Street signs, guard rails, etc.;

I.    Grading;

J.    Erosion control.

(Ord. 2102-07 § 1 (part), 2007)

16.20.030 Construction plans and specifications—Approval of city engineer.

The city engineer shall review or have reviewed the construction plans and specifications for conformance with requirements of the city and shall approve, reject or conditionally approve, in writing, the proposed improvements before said improvements are installed. (Ord. 2102-07 § 1 (part), 2007)

16.20.040 Construction and inspection.

A.    Prior to starting any of the work covered by the plans approved above, written authorization to start the work shall be obtained from the city engineer upon receipt of all necessary permits and in accordance with construction methods of Section 16.20.170.

B.    Construction of improvements required by this chapter must be completed within two years from the date of the approval of the preliminary plat by the plan commission unless good cause can be shown for granting of an extension of time by both the mayor and the council.

C.    During the course of construction at such times as the city engineer deems necessary, within customary and good practices of engineering and construction, inspection of the work shall be made to insure compliance with the plans and specifications as approved. The subdivider shall pay the actual costs of inspections. This fee shall be the actual cost to the city of inspectors, engineers and other parties necessary to insure satisfactory work. (Ord. 2102-07 § 1 (part), 2007)

16.20.050 As-built plans.

After completion of all public improvements and prior to final acceptance of the improvements, the subdivider shall make or cause to be made a drawing showing the actual location of all valves, manholes, stubs, sewer and water mains and such other facilities as the city engineer shall require. This drawing shall conform to the city’s drafting standards as contained in the city’s Public Infrastructure and Development Handbook and provided to the city in electronic format and on drafting paper in black ink and shall bear the signature and seal of a professional engineer registered in Wisconsin. In addition to the above described map, the subdivider shall provide the city with “valve cards” showing the location of water main valves and as-built working drawings of sewage lift stations, water pump house facilities and such other facilities as the city engineer may require. Manufacturers’ guarantees on equipment shall be furnished where in force. The presentation of this map and other as-built drawings and manufacturers’ guarantees shall be a condition of final acceptance of the improvements and release of the security assuring their completion. (Ord. 2102-07 § 1 (part), 2007)

16.20.060 Survey monuments.

All permanent and other monuments required under Section 16.04.050 shall be placed prior to the approval of the final plat or the release of any security posted with the city under Section 16.08.050(B) to assure installation of improvements and monuments. (Ord. 2102-07 § 1 (part), 2007)

16.20.070 Acceptance of dedications, improvements.

A.    The approval of the final plat by the mayor and the council shall constitute acceptance of the dedication of the right-of-way for any public street, open space or other public area, but the developer shall remain liable for any accidents on any such street prior to the time of final acceptance by the city of the street improvement.

B.    The acceptance of the improvements constructed in accordance with this chapter for operation and maintenance purposes shall be upon the city engineer’s certification that they have been properly installed and completed and adequate security has been provided for the ensuing year, and by formal resolution of the mayor and the council. However, the normal operating costs of the pumping stations, street lights, etc., shall be assumed by the city when put in operation upon being tentatively accepted, subject to guarantee. (Ord. 2102-07 § 1 (part), 2007)

16.20.080 Design standards—Streets.

A.    Streets shall be designed in accordance with the city’s Public Infrastructure and Development Handbook.

B.    The developer, required to construct the street(s), shall submit to the city an engineering analysis and design on the recommended pavement cross-section that is suitable for the conditions under which the pavement will be constructed. In no case should the recommended cross-section be less than the city’s minimum cross-section.

C.    Street pavement construction shall not commence until after the backfill has settled where water, sanitary sewer, storm sewer and other underground facilities have been made in the roadway. Granular backfill shall be used within existing and proposed paved areas.

D.    All street pavements, including curb and gutter, shall be constructed in accordance with the latest edition of the city of Brookfield pavement specification.

E.    Placement of curb and gutter and/or stone base shall not commence until the city has checked and given written approval on the subgrade. (Ord. 2102-07 § 1 (part), 2007)

16.20.090 Design standards—Alleys.

Alleys provided to serve business, commercial or industrial uses shall be constructed in accordance with the secondary street specifications; however, the paved surface need not exceed twenty (20) feet of the thirty (30) foot right-of-way. (See Section 16.16.030(Q)). (Ord. 2102-07 § 1 (part), 2007)

16.20.100 Design standards—Sanitary sewer system.

A.    The subdivider shall install the sanitary sewer system required to serve the subdivision.

B.    No land shall be subdivided in reliance on septic tank systems within the city.

C.    All community sewerage systems shall be designed and constructed in accordance with the master plan of sanitary sewers to serve the city area.

D.    Sewer Design.

1.    Sanitary sewers shall be designed in accordance with the rules of the Milwaukee Metropolitan Sewerage District effective May 1, 1958 and all amendments thereto and in accordance with the city’s Public Infrastructure and Development Handbook. (Ord. 2102-07 § 1 (part), 2007)

16.20.110 Stormwater sewerage or surface drainage system—Required when.

Stormwater sewerage or surface drainage system shall be provided to serve adequately the area being platted considering, but not limited to, the following:

A.    Whenever possible, existing drainage channels shall be used. A drainage easement, in addition to the provided right-of-way width, may be required where streets parallel streams or drainage area. Such easement width shall be determined by the city engineer.

B.    The design of the drainage system shall consider and show the following:

1.    Storm drainage area of which the subdivision is a part;

2.    Calculations as to volume and frequency of water to be handled;

3.    A scheme of culverts sufficient in size to eliminate flooding or ponding of water;

4.    Grades or conditions which may result in erosion or ponding;

5.    Existing watercourses;

6.    A plan of subdivisions grading to prevent the ponding of stormwater and to eliminate problems under subsection (B)(4) of this section.

C.    Where the city engineer concludes that storm sewers will be necessary to control erosion or ponding, the storm sewers shall be designed in accordance with the rules of the Milwaukee Metropolitan Sewerage District effective May 1, 1958 and all amendments thereto and in accordance with the city’s Public Infrastructure and Development Handbook. (Ord. 2102-07 § 1 (part), 2007)

16.20.120 Design standards—Water supply and distribution.

A.    A water supply and distribution system shall be provided. Such system shall include all appurtenances and a service connection extending to the lot line for each buildable lot.

If the water distribution system must be extended beyond the boundary of the subdivision in order to reach an (active) existing water utility supply main, the director of public works shall submit the preliminary plat to the water and sewer board before same is forwarded to the plan commission in accordance with Section 16.08.030(A). The water and sewer board shall make a determination regarding the financing of the extension including the payment of oversized mains, option assessments and lateral installations.

B.    All community water supply and distribution systems shall be designed and constructed in accordance with the master plan of water distribution and supply for the city on file in the office of the city engineer.

C.    Water Main Design. The water distribution system shall be designed in accordance with the city’s Public Infrastructure and Development Handbook.

D.    Water supply facilities, water distribution system, and water storage facilities shall be designed to furnish water in the quantity required by the State Department of Health requirements for domestic water supply and also in accordance with the Insurance Services Office for fire demand. (Ord. 2102-07 § 1 (part), 2007)

16.20.130 Design standards—Street signs, guard rails, landscaping.

A.    Subdivider shall make a deposit in cash with the city treasurer to cover the cost of all street signs and posts including the cost of installation.

B.    Guard rails shall be placed along the shoulder of any street where street construction has resulted in steep embankments in accordance with AASTHO standards and subject to review by the plan commission.

C.    Wherever possible, existing trees shall be preserved in the installation of subdivision improvements. All street rights-of-way shall be seeded or sodded. Provision shall be made to assure the growth of all landscaping.

D.    All stripped areas shall be seeded and all destroyed trees, brush and rubbish removed therefrom. All cut and fill sections throughout the area to be developed shall be restored in a satisfactory manner. Sod shall be laid on areas subject to excessive erosion. Wooden pegs shall be incorporated to hold the sod in place. A bond may be required to assure compliance with this section.

E.    All telephone, cable TV and electric cable shall be buried underground in accordance with the specifications of the State Electrical Code. This shall include feeder cables and individual service connections. (Ord. 2102-07 § 1 (part), 2007)

16.20.140 Oversize design.

Where required in the overall city planning, as evidenced by the master plans for streets, water, and sanitary sewers, subdivision improvements shall be larger than necessary to serve the immediate subdivision adequately, an agreement shall be made to repay the subdivider the construction cost resulting from the increased design. This shall apply, but not be limited to, collector sewers, lift stations, disposal facilities, wells, pumping stations, water mains, storage tanks, culverts, storm sewers, etc. In the case of street improvement, the developer shall pay the cost of the improvement up to the width and depth required for a collector street; the city shall reimburse him for any additional cost required for pavement on a major or secondary street. (Ord. 2102-07 § 1 (part), 2007)

16.20.150 Trees.

See Section 16.16.070.

(Ord. 2102-07 § 1 (part), 2007)

16.20.160 Final construction plans.

Final construction plans shall be prepared in accordance with the city’s drafting standards as contained in the city’s Public Infrastructure and Development Handbook and shall be submitted to the city in electronic format and on twenty-two (22) inch by thirty-four (34) inch paper and shall contain at least the following information in the following order:

A.    General layout drawings of the proposed streets;

B.    General layout drawings of the proposed water system;

C.    General layout drawings of the proposed sanitary sewers;

D.    General layout drawings of the proposed storm drainage;

E.    Plans and profiles of streets and sewers, scale not less than one inch equals fifty (50) feet horizontal; and one inch equals five feet vertical;

F.    General layout drawing of proposed street lighting;

G.    Details of streets, structures, etc.

(Ord. 2102-07 § 1 (part), 2007)

16.20.170 Material standards.

A.    All construction improvements covered by this chapter shall be in accordance with, and materials used shall be in compliance with, the methods and materials required in the appropriate sections of Standard Specifications for Highway and Structure Construction, as amended, published by the State Department of Transportation.

B.    Construction materials shall conform to the minimum indicated in the appropriate Standard of ASTM, ASA, AWWA and other standards approved by the city engineer. (Ord. 2102-07 § 1 (part), 2007)

16.20.180 Acceptance of subdivision improvements in stages.

A.    The council may, as an alternative to the provisions herein, agree, in the subdivider’s agreement with the subdivider, that it will accept the dedication of the required public improvements in stages. Any such agreement shall specify that the city will accept a public improvement within a designated part of the subdivision when it has been completed in accordance with city plans and specifications and passed the necessary inspections even though the particular improvement shall not have been completed in the remainder of the subdivision. The city may agree to release that part of the developer’s bond, cash or securities which shall have been posted as a guarantee of his completion of such public improvement which is in proportion to the cost which the completed improvement bears to the original estimate of the city engineer for the cost of the completion of all improvements in the subdivision. However, if the cost of the completed improvements has varied substantially from the engineer’s estimate, he may at that time revise his estimate for the cost of the entire job.

B.    The acceptance by the city of a sewer or water system for a designated portion of the subdivision shall not preclude the city from including that portion of the subdivision in the inspection tests which will be made by the city at a later time when the remainder of the particular improvement is offered by the developer to the city for acceptance insofar as the performance of the sewer or water system for the entire subdivision necessarily requires that the inspection include tests made throughout the subdivision. (Ord. 2102-07 § 1 (part), 2007)

16.20.190 Penalty for violation of this chapter.

Any person, firm, partnership, or corporation who violates any part of this chapter shall be subject to the penalty and enforcement provisions in Chapter 1.12. (Ord. 2552-19 § 45, 2019)