§ 18-78. Required improvements.

(a)

The subdivider shall submit engineering plans and specifications satisfactory to the city for all required improvements, as listed or as specified in this chapter. These improvements must be initiated within one year of final plat approval and completed within two years.

(b)

The following public improvements are required in every plat:

(1)

All subdivision boundary corners, block and lot corners, street intersection corners and points of tangency and curvature shall be marked with durable iron or steel monuments meeting the minimum requirements of state law. The city may, when a subdivision is essentially complete, require a development to have the plat restaked to replace the original monuments destroyed or obliterated during the construction process.

(2)

As a rule, the surface water discharge rate from the subdivision is to be retained at the predevelopment rate for a 100-year, 24-hour storm event through the use of surface water detention/retention facilities or other appropriate means as approved by the city engineer.

(3)

Every roadway shall have an adequate sub-base and shall be improved with a bituminous or concrete surface in accordance with the design standards specified by the city for urban or rural sections. Except in areas where lot widths exceed 100 feet or topography or tree cover dictates otherwise, grading shall provide for easy installation of sidewalks.

(4)

Concrete curb and gutter shall be required for all urban street sections.

(5)

Sidewalks may be required. The following criteria shall be used in determining if sidewalks are to be included in a development:

a.

Sidewalks that connect to existing sidewalks within adjacent developed areas.

b.

Sidewalks that connect neighborhoods to adjacent schools, parks and neighborhood commercial areas.

c.

Sidewalks that connect neighborhoods to existing neighborhoods, within adjacent developed areas, and proposed trails as shown in the City of Chanhassen Comprehensive Plan.

d.

Sidewalks that are located in residential areas with long blocks or many dwelling units on the street(s), or commercial or industrial areas.

(6)

Where a public water supply is available within a reasonable distance of the proposed subdivision the subdivider shall be required to provide a connection to the public system. Service connections shall be stubbed into the property line and all necessary fire hydrants shall be provided. Extensions of the public water supply systems shall be designed to provide public water service to each lot and shall be in accordance with applicable city requirements.

(7)

Street lighting of a type approved by the city shall be required at intersections and other locations.

(8)

If available, public sanitary sewer main and service connections shall be approved by the city engineer and installed to serve all lots in the subdivision. In unsewered areas, facilities for sewage disposal, which meet applicable city ordinance requirements for individual sewage disposal systems must be provided.

(9)

A system that will adequately accommodate the surface water runoff within the subdivision, as required by this chapter, shall be provided.

(10)

Street signs of standard design approved by the city shall be installed at each street intersection. Regulatory signs shall be installed as required.

(11)

Where any proposed plat adjoins a natural lake, pond, river, stream, including streams which flow only intermittently, or wetland, the city may require that a strip of land running along all sides thereof which are contiguous to such lake, pond, stream, or wetland be dedicated to the city for public use, or subject to a perpetual easement in favor of the city for the purpose of protecting its hydraulic efficiency and natural character and beauty. There shall also then be granted to the city the right of ingress to and egress from the dedicated land.

(12)

All utility lines for telephone and electrical service shall be placed underground or where this is not feasible shall be placed in rear lot line easements when carried on overhead poles.

(13)

Arterial and collector roadways abutting a proposed subdivision must be improved in accordance with the city's adopted five-year capital improvement plan. If there is a nexus between the need for the improvement and the subdivision, the subdivider must construct the improvement or pay a proportionate fee to allow the city to construct the improvement. If the construction work is undertaken by the subdivider, the city will reimburse the subdivision 40 percent of the cost for reconstructing a two lane roadway section and 50 percent of the cost of widening a roadway from two lanes to four lanes, or upgrading a roadway from a rural design to an urban section. In lieu of the subdivider performing the construction work, at the city's option, the subdivider shall pay an equivalent fee to the city, based upon estimated construction costs. The fee shall be deposited in a dedicated fund for the purpose for which it was collected.

(14)

The developer is required to install public improvements including, but not limited to, sanitary sewer, water main, storm sewer and urban streets to the property boundary to provide future extension to adjacent properties.

(c)

Prior to the city signing the final plat and prior to the construction of any improvements or site grading, the developer shall provide the city with a letter of credit or cash escrow to insure that all improvements required by this chapter will be installed and paid for at no city expense. For improvements to be installed by the developer, the developer is obligated to install and complete all such improvements at his or her own expense and under the supervision and inspection of the city. For improvements which the city agrees to install, the developer shall pay the cost of such improvements through payment of special assessments. As security to the city for installation of the improvements or the payment of special assessments, the developer shall be required to file a cash escrow or letter of credit in an amount and form acceptable to the city to cover the cost of all improvements and special assessments.

(Ord. No. 33-D, § 9, 2-25-85; Ord. No. 33-E, § 1, 12-15-86; Ord. No. 324, § 21, 7-9-01; Ord. No. 369, § 12, 2-23-04; Ord. No. 402, § 1, 9-29-05; Ord. No. 422, § 2, 6-12-06; Ord. No. 432, § 7, 9-25-06; Ord. No. 612, § 1, 12-14-15)