§ 213.20 MINIMUM STANDARDS FOR PUBLIC FACILITIES.

(A) The Commission will grant tentative approval of plans, profiles and specifications filed, as above required, for construction and installation of public facilities only in the event that such plans, profiles and specifications conform to the minimum standards required by this chapter.

(B) Upon tentative approval of such plans, profiles and specifications filed, the developer shall transmit detailed street plans in duplicate to the Commission for final action. The detailed plans shall show the location and type of curbs, storm drains and sewers; profile of the curb and/or pavement and sewer centerlines; elevations of high and low points; cross section of street with curb and pavement sections; sidewalk grades and grades of property lines. Other public facilities proposed for construction in street rights-of-way or utility easements shall be shown on a separate utility plan and submitted with the detailed plans. The utility plan shall show the location, depth, size and type of pipe or cable for each utility proposed. The location and size of all surface and underground structures (such as manholes, service taps, valves, meters, transformers, poles) shall be clearly shown.

(C) No work on underground facilities shall be started until detailed plans have been approved. No sidewalk or curb and gutter work shall be started until the underground facilities have been inspected and approved in writing by the Zoning Administrator. The Zoning Administrator must be notified 24 hours in advance to inspect underground work before it is covered, and to check line and grade of curb forms before concrete is poured. Delays and increased costs due to failure of the developer to give adequate notice for required inspections will be at the developer's risk.

(D) All public facilities shall be substantially complete, to the Zoning Administrator's satisfaction, before any building permit is issued.

(E) A set of reproducible as-built drawings shall be submitted to the Zoning Administrator before any occupancy permits are issued.

(F) The developer shall supply or shall defray all expenses incurred by the town in supplying the subdivision with a street lighting system and shall pay for the first year of operating costs. Lights shall be installed at each street intersection, at dead ends or cul-de-sac streets and midway in blocks over 660 feet in length, or such additional lights as the Commission or town determines necessary after consultation with Northern Indiana Public Service Company and receipt of a recommendation therefrom. The proposed location of all street lights shall be shown on a street lighting plan which will be part of the required improvement plan.

(G) All subdivisions consisting of one to nine dwelling units shall have underground utility services from the distribution point to the dwelling.

(H) All subdivisions consisting of ten or more dwelling units shall provide both underground utility distribution network and individual services to each dwelling.
('83 Code, § 1913) Penalty, see § 10.99



§ 213.21 MINIMUM STANDARDS FOR STREETS.

(A) Alignment. The centerlines of intersecting streets shall be as close to right angles as possible. The simultaneous intersection of streets resulting in traffic from more than four directions is prohibited. The minimum radius of horizontal curvature shall be 500 feet for arterial, commercial and industrial streets, and 250 feet for collector and residential streets.

(B) Storm drains and sewers. The storm drainage system shall be designed in conformance with Chapter 211 of this code.

(C) Curbs. All newly developed streets or streets proposed for improvement shall be constructed with concrete curbs. Nonreinforced concrete curb and gutter shall be used on streets with asphalt pavement; reinforced integral concrete curbs shall be used with concrete pavement. See figures titled “Typical Cross Section” for the curb type required and “Standard Curb Types” for construction details.

(D) Asphalt pavement. Asphalt pavements may be designed in accordance with the Thickness Design Manual (MS1), published by the Asphalt Institute or the AASHTO Guide for Design of Pavement Structures. The soil testing results and design calculations prepared for the selected design method shall be submitted for review with the detailed street plans. The pavement section shall, however, meet the minimum requirements shown in the “Typical Cross Section” figure for the street classification proposed.

(E) Concrete pavement. Concrete pavements may be constructed as an alternate to asphalt with the approval of the Council. Concrete pavement shall be constructed in accordance with the AASHTO Guide for Design of Pavement Structures. The soil testing results and design calculations prepared for this design method shall be submitted for review with the detailed street plans.

(F) Street name signs. Standard street name signs shall be provided and installed by the subdivider or developer at all street intersections, at the direction of the Commission.

(G) Traffic control signs. Traffic control signs shall be provided and installed by the subdivider or developer. Traffic signs shall conform to the Indiana Manual of Uniform Traffic Control Devices. The Zoning Administrator will indicate the type and location of the required signs.

(H) Walks. Concrete walks shall be constructed adjacent and parallel to the front lot line of all lots proposed for improvement. The walk shall be not less than five feet wide and four inches thick constructed of non-reinforced concrete on a shaped and compacted subgrade. The surface shall be broom-finished and have a transverse slope of one-quarter inch per foot for drainage. A tooled or sawed contraction joint shall be provided every five feet of length and an expansion joint shall be installed every 50 feet of length and at every projection (powerpole, manhole casting, and the like) through the walk. Expansion joints shall be filled with a one-half inch thick, resilient, rot-resistant filler material. The maximum longitudinal slope of a walk shall be 8% where the ADA Act applies and 16% elsewhere.

(I) Sidewalk ramps. Construct handicap accessible ramp at both ends of every crosswalk on all street intersections. The ramp shall be four inches thick constructed of “Class A” concrete with broom finish or equal non-skid surface. The gutter section shall be maintained through the ramp area and the curb section depressed. See following figures for typical arrangement and dimensions.

(J) Existing conditions. The applicant shall make every effort to blend the new work with the existing conditions. The slope and alignment of walks and curbs shall be considered in the design layout to provide as continuous and uniform a line and grade as possible.
('83 Code, § 1914) Penalty, see § 10.99

§ 213.22 MINIMUM STANDARDS FOR ALLEYS.

(A) Alleys with a minimum width or right-of-way of 20 feet may be required in all business, commercial, and industrial districts. Except where justified by unusual conditions, alleys will not be required in residential districts.

(B) All alleys shall be constructed by grading out all topsoil and other material not suitable for base course, shaping and compacting the exposed subgrade and filling the area with graded coarse aggregate. The compacted aggregate layer shall be a minimum of eight inches thick and ten feet wide.

(C) Alleys shall be graded in a manner so that no water will stand in the alley or upon adjoining property. If the alley cannot be graded to provide adequate drainage, a sufficient number of catch basins shall be installed and connected to the storm drainage system to drain off excess water.
(`83 Code, § 1915) Penalty, see § 10.99



§ 213.23 MINIMUM STANDARDS FOR EASEMENT.

(A) Where alleys are not provided, easements shall be provided for utilities, sewers, and storm drains. Such easements shall generally be located along rear or side lot lines, in which case a minimum width of 15 feet, seven and one-half feet on each side of the lot line, shall be provided. If such an easement is contained within a lot, the minimum width shall be 15 feet. Easements shall be laid out such that proper continuity may be had for utilities from block to block and within a block.

(B) Every plat shall contain a statement to the effect that all utility easements as dedicated on the face of the plat shall be kept free of all permanent structures and the removal of any obstruction by a utility company shall in no way obligate the utility company in damages or to restore the obstruction to its original form.
(`83 Code, § 1916) Penalty, see § 10.99



§ 213.24 MINIMUM STANDARDS FOR RECREATION SPACE.

(A) Commission approved recreation space shall be provided in all subdivisions wherein the minimum net lot area is less than 12,000 square feet. The purpose of this space shall be to meet the immediate and future recreation needs of the subdivision's residents in a neighborhood setting. Recreation space shall be provided at the rate of 750 square feet per dwelling unit.

(B) Recreation space may be provided in a centrally located site, in distinctly separated sites, or connecting links between separated activity areas, or adjacent to other existing or proposed recreation spaces. The Commission shall determine if the proposed space is suitable for the intended use.

(C) This requirement may be waived when, in the opinion of the Commission, the applicant has satisfactorily demonstrated that he has provided alternative methods for meeting the recreational needs of his subdivision residents or the resulting recreation space is less than 10,000 square feet.

(D) All subdivisions with recreation space must contain acceptable covenants which, in the opinion of the Commission, ensure adequate maintenance of those recreation spaces.
('83 Code, § 1917) Penalty, see § 10.99



§ 213.25 MINIMUM STANDARDS FOR SANITARY SEWERS.

(A) The developer shall install or cause to be installed a system for the disposal of sanitary sewage in the subdivision by one of the following means:

(1) Public system. A complete sanitary sewer system which shall convey the sewage into an established wastewater treatment works, operated by a municipal or other public agency, at a point and in a manner approved in writing by that municipality or other agency. The plans for the complete installation of the sewage system showing all locations, materials, size, profiles and any connections there to shall be prepared by a registered engineer at the expense of the developer and shall be approved by and meet the requirements of the affected municipality or other public agency.

(2) Septic tank. If the developer submits acceptable evidence to the Council and the Plan Commission that connection to a public sanitary sewage system is impractical due to the low density of the proposed development, lack of planned or limited capacity of existing public or quasi-public sanitary systems, then the Commission may permit the use of private sanitary facilities. Private sanitary facilities such as, a septic tank and absorption field or other approved treatment system must be laid out in accordance with the standards and approval of the Commission, Council, Lake County Board of Health and the State Board of Health.

(B) Sanitary sewers shall be designed and constructed in accordance with Chapter 20 of the Recommended Standards for Sewage Works (also known as the Ten States Standards) published by Health Education Services of Albany, New York. The sewer design shall be submitted to the Indiana Department of Environmental Management and the Highland Sanitary District for review, if directed by the Commission.

(C) Sewage pumping stations, where required, shall be designed and constructed in accordance with Chapter 30 of the Recommended Standards for Sewage Works (also known as the Ten States Standards) published by Health Education Services of Albany, New York. The pump station design shall be submitted to the Indiana Department of Environmental Management and the Highland Sanitary District for review, if directed by the Commission.

(D) Septic and other private sewage systems shall be designed and constructed in accordance with the Recommended Standards for Individual Sewage Systems published by Health Education Services of Albany, New York.

(E) In addition to these minimum standards, all other requirements of Chapter 51 of the Highland Municipal Code shall apply.
('83 Code, § 1918) Penalty, see § 10.99



§ 213.26 MINIMUM STANDARDS FOR WATER SUPPLY.

(A) The developer shall install or cause to be installed a water supply system for the subdivision connected to the public water supply in conformance with Chapter 52 of this code.

(B) A complete water main system including fire hydrants shall be installed which is approved by the town. The plans for the complete installation showing size, location, depth, material, and all connections thereto, shall meet the requirements and receive approval of the Council, Water Board and Commission.

(C) The design of the water supply system shall follow the guidelines published in Recommended Standards for Water Works published by Health Education Services of Albany, New York. The water system design shall be submitted to the Indiana State Board of Health and the Highland Water Board for review, if directed by the Commission.

(D) A private well may be approved for a one-lot subdivision, providing that the developer submits acceptable evidence to the Council and Commission that connection to the public water supply system is impractical. A private well may be developed in accordance with AWWA Standard A100. All private wells must be approved by the Lake County Board of Health and the Indiana State Board of Health.

(E) In addition to these minimum standards, all other requirements of Chapter 52 of the Highland Municipal Code shall apply.
('83 Code, § 1919) Penalty, see § 10.99



§ 213.27 MATERIALS OF CONSTRUCTION.

All materials used for construction of public facilities shall be new, of first-class quality, meeting or exceeding the standard or specification cited below.

(A) Aggregates. Fine and coarse aggregates used in concrete or asphalt shall comply with IDOH-SS, subsection 903.

(B) B-borrow or special borrow for structures. Fill and backfill material around and under structures shall comply with IDOH-SS, subsection 211.

(C) Concrete. Materials and procedures used in preparing concrete mixes shall comply with IDOH-SS articles 702.01 through 702.11, except that fly ash may only be used with written approval of the building inspector.

(D) Asphalt products. Materials and procedures for preparing asphalt mixes shall comply with IDOH-SS, subsection 401.

(1) HAE, hot asphalt emulsion, pavement materials shall comply with IDOH-SS, subsection 402.

(2) HAC, hot asphalt concrete, pavement materials shall comply with IDOH-SS, subsection 403.

(3) Prime coat shall comply with IDOH-SS, subsection 408.

(4) Tack coat shall comply with IDOH-SS, subsection 409.

(E) Sewer and drainage pipe.

(1) Reinforced concrete pipe shall comply with ASTM specification C76 and the joints with C443. Reinforced concrete arch pipe shall comply with ASTM specification C506 and reinforced concrete elliptical pipe with C507.

(2) Vitrified clay pipe and extra strength vitrified clay pipe shall comply with ASTM specification C700 and the joints with C425.

(3) Precast concrete manhole sections shall comply with ASTM specification C478. Manholes shall have a minimum inside diameter of 48 inches and have a medium or heavy duty frame and lid. Provide a precast flat top section if the manhole is less than six feet deep and an eccentric cone section if the manhole is six feet or more in depth.

(4) Precast concrete utility vaults shall comply with ASTM specification C858.

(5) Polyvinyl chloride (PVC) gravity sewer pipe shall comply with ASTM specification D3034 with a minimum rating of SDR 35 (standard dimensional ratio). The joints shall comply with ASTM specification D3212.

(6) Polyvinyl chloride (PVC) pressure pipe from four to 12 inch diameter shall comply with AWWA standard C900 and from 14 to 36 inch diameter shall comply with AWWA standard C905.

(7) Ductile iron pipe shall comply with AWWA specification C151 and joints and gaskets with C1111. All exposed ductile iron pipe shall be flanged while buried ductile iron pipe may be push-on or mechanical joint.

(8) Corrugated metal pipe for culverts shall be fabricated of hot-dip galvanized sheet steel conforming to ASTM specification A444. Corrugated metal pipe and pipe arches shall comply with IDOH-SS article 907.02.

(F) Storm drains. Storm drains, inlets and catch basins, shall be constructed of precast concrete components, similar in construction to precast manholes.

(1) Inlets shall be a minimum of 24 inches in inside diameter and 30 inches deep with a four inch thick bottom.

(2) Catch basins shall be at least 36 inches in inside diameter and 78 inches deep with a six inch thick base.

(3) Each storm drain shall have a heavy duty cast or ductile iron frame and grate of appropriate shape for its location. The grate shall be constructed with bicycle safe openings and have sufficient open area to accept the run-off calculated for its collection area in the drainage plan.

(G) Joint filler. Joint filler for expansion joints in concrete walk and curb shall comply with IDOH-SS article 905.01.

(H) Water supply pipe.

(1) Ductile iron pipe (for water supply mains) shall comply with AWWA specification C151 with cement mortar lining conforming to AWWA C104 and joints and gaskets conforming to AWWA C111. Fittings for ductile iron pipe shall comply with AWWA specification C110 or C153.

(2) Type K copper tubing for water service lines shall be soft temper conforming to ASTM Specification B88 with forged bronze compression fittings conforming to ANSI B16.22.

(I) Water valves. Valves for water supply shall conform to the AWWA standards listed below.

(1) All water line valves of eight inch and greater diameter shall be resilient seated butterfly valves in accordance with AWWA C504.

(2) All water line valves less than eight inches in diameter, and valves used on tapping tees, shall be resilient seated gate valves conforming to AWWA C509.

(3) Fittings for service lines shall comply with AWA C800.J. Fire hydrants: Dry barrel fire hydrants shall meet the requirements of this code.
('83 Code, § 1920) Penalty, see § 10.99

§ 213.28 CONSTRUCTION REQUIREMENTS.

(A) Storm drains and sewers.

(1) Manholes, inlets and catch basins shall be constructed and installed in accordance with IDOH-SS, subsection 720.

(2) Culverts and storm sewers shall be installed in accordance with IDOH-SS, subsection 715.

(3) Jacked pipe shall be installed in accordance with IDOH-SS, subsection 717.

(4) Arches and pipe arches shall be installed in accordance with IDOH-SS, subsection 717.

(B) Sanitary sewers.

(1) Manholes shall be constructed and installed in accordance with IDOH-SS, subsection 720.

(2) Sanitary sewers shall be installed in accordance with IDOH-SS, subsection 715. Construction of sanitary sewers shall also conform to Chapter 20 of the Recommended Standards for Sewage Works (also known as the Ten States Standards) published by Health Education Services of Albany, New York.

(3) Jacked pipe shall be installed in accordance with IDOH-SS, subsection 717.

(4) Sanitary sewer construction shall also conform to all provisions of Chapter 51 of the Highland Municipal Code.

(C) Water supply.

(1) All pipe, valves and fittings for water supply shall be handled, stored and installed according to the manufacturer's instructions when specific standards are not identified. The final water supply installation shall be disinfected in accordance with AWWA specification C651.

(2) Ductile iron pipe and appurtenances shall be installed in accordance with AWWA specification C600.

(3) Service lines for water supply shall be installed in accordance with AWWA specification C800.

(4) Private wells for water supply shall be disinfected before being placed in service in accordance with AWWA specification C654.

(5) Water line construction shall also conform to all provisions of Chapter 52 of the Highland Municipal Code.

(D) Subgrade preparation.

(1) In cut sections, the subgrade shall be prepared in accordance with the applicable paragraphs 207.01 through 207.05 of IDOH-SS, subsection 207.

(2) In fill sections, the subgrade shall be prepared in accordance with the applicable paragraph 207.06 of IDOH-SS, subsection 207.

(E) Curb and gutter. Integral concrete curbs and concrete curb and gutter shall be constructed in accordance with IDOH-SS, subsection 605.

(F) Sidewalks, curb ramps and steps. Sidewalks, curb ramps and steps shall be constructed in accordance with IDOH-SS, subsection 604.

(G) Asphalt pavement. Asphalt, or bituminous pavements shall be constructed in accordance with the applicable subsections of IDOH-SS, Section 400.

(H) Concrete pavement. Concrete pavement shall be constructed in accordance with the applicable subsections of IDOH-SS, Section 500.
('83 Code, § 1921) Penalty, see § 10.99