[Ord. No. 1457 §110, 1-5-1999]
All improvements required under these regulations shall be constructed in accordance with the specifications and under the supervision of the official having jurisdiction in the manner prescribed below.
[Ord. No. 1457 §110.02, 1-5-1999]
Prior to the construction of the improvements referred to above, the developer shall furnish the Planning and Zoning Commission with a corporate surety performance bond running to the City of Versailles or other security acceptable to the Planning and Zoning Commission sufficient to cover the developer's proportion of the costs, as estimated by the developer's consultant or subject to approval, as the case may be, of any or all of the improvements required to be installed, thereby to assure the actual construction and installation of such improvements immediately after final approval of the final plat or at a time and according to the requirements of the Planning and Zoning Commission.
[Ord. No. 1457 §110.03, 1-5-1999; Ord. No. 16-002 §§1 — 2, 1-12-2016; Ord. No. 21-002, 2-10-2021[1]]
A. 
Width For Street Construction.
[Ord. No. 22-007, 4-12-2022]
1. 
Residential. Streets shall have a minimum right-of-way width of forty (40) feet and shall have a third layer in width of no less than twenty (20) feet.
2. 
Commercial. Streets shall have a minimum right-of-way width of fifty (50) feet and shall have a third layer in width of no less than thirty (30) feet.
B. 
Sub-Grade Preparation.
1. 
The proposed road bed should have all vegetation and topsoil stripped from the area down to suitable clay materials that can be graded and compacted. Clearing shall consist of complete removal of all trees, stumps, down timber, fencing, snags, brush, and any debris not consistent with the clay. Debris should be disposed of at a proper site, and should not be buried on site.
2. 
The sub-grade shall be substantially uniform in density throughout the entire width of the sub-grade. The sub-grade shall have a minimum of eight (8) inches of two-inch base rock and four (4) inches of one-inch base rock for residential streets and twelve (12) inches of two-inch base rock and four (4) inches of one-inch base rock for commercial streets. The road bed should be constructed in a manner to drain surface water to the side ditches or curbs. All road beds should have a two percent (2%) crown or three percent (3%) slope in corners with super-elevation to allow for proper street draining.
3. 
All sub-grade shall be rolled. The sub-grade shall be checked after rolling for proper elevation requirements, sufficient material shall be removed or added and compacted to bring the sub-grade to required elevation and density. Density shall reach ninety-five percent (95%) of maximum density. Sub-grade elevation must be within one-half (1/2) inch of proposed grades.
4. 
After density has been achieved the road bed shall be proof rolled with a loaded tandem dump truck. The truck shall be loaded with no less then fourteen (14) tons (28,000 lbs.). The proof roll shall be performed by driving the truck up and down the road bed in its lowest gear at a walking pace, moving across the road bed in several passes to cover the entire road bed. The Street Commissioner shall observe the road bed for deflection (movement) as the wheels pass over. Any deflection of more then one (1) inch shall be addressed by removing the soft area and bringing in suitable material that shall be graded and compacted.
5. 
Soft areas shall be removed to a minimum depth of eight (8) inches for residential roads and a minimum depth of twelve (12) inches and a maximum depth of twenty-four (24) inches for all roads. If the maximum depth is reached that the sub-grade is still not suitable it may be necessary to use geo-grid and shot rock to stabilize the area. Replacement material should be installed in 6-inch lifts and compacted to ensure a solid bed.
C. 
Aggregate Base Course.
1. 
This work shall consist of furnishing and placing a graded aggregate material over a prepared sub-grade and grading and compacting that material in preparation for pavement.
2. 
Material for this work shall conform to MODOT gradations and shall be Type 1 or 5 aggregate base material and shall be crushed stone that has been properly screened and graded.
3. 
Material shall be placed on the prepared road bed and compacted to a density of ninety-five percent (95%) of maximum density.
4. 
Grading of the material should match the grade of sub-grade with a crown of two percent (2%) and maximum slope of three percent (3%) on super elevations. This should be checked after compaction is complete and should be within one-fourth (1/4) inch of the proposed grade.
5. 
After density has been achieved the aggregate shall be proof rolled with a loaded tandem dump truck. The truck should be loaded with no less than fourteen (14) tons (28,000 lbs.). The proof roll shall be performed by driving the truck up and down the road bed in its lowest gear at a walking pace, moving across the road bed in several passes to cover the entire road bed. The Street Commissioner shall observe the aggregate base for deflection (movement) as the wheels pass over. Any deflection of more than one (1) inch shall be addressed by removing the soft area and bringing in suitable materials that shall be graded and compacted.
D. 
Bituminous Pavement.
1. 
Bituminous pavement shall be placed on the prepared road bed by placing mixture with a self-propelled asphalt paver and compacted with self-propelled rollers capable of reaching desired compaction.
2. 
Bituminous material shall conform to MODOT Section 401. It shall consist of a final compacted 3-inch layer of Bituminous Base Course (Bit Base) and a final compacted 2-inch layer of Bituminous Pavement-1 (BP-1). A tack coat shall be placed between the Bit Base lift and the BP-1 lift with a material that conforms to MODOT specifications for Tack Coat.
3. 
The Bituminous pavement shall be placed with a self-propelled asphalt paver and shall follow the crown and grade established by the aggregate base course.
4. 
Uniform compaction shall be achieved with a self-propelled roller to a minimum density of ninety-two percent (92%) of theoretical maximum specific gravity. Density can be tested using either an approved filed gauge or by cutting cores and testing the cores.
E. 
Concrete.
1. 
Residential streets that are paved with concrete shall be no less than six (6) inches in depth with concrete at a strength of four thousand (4,000) to five thousand (5,000) psi, with one-half (1/2) inch rebar placed two (2) foot on center.
2. 
Commercial streets that are paved with concrete shall be no less than eight (8) inches in depth with concrete at a strength of four thousand (4,000) to five thousand (5,000) psi, with one-half (1/2) inch rebar placed two (2) foot on center.
[1]
Editor's Note: Ord. No. 21-002 also changed the title of this Section from "Street Construction — Residential" to "Street Construction" and repealed former Section 410.120, Street Construction — Commercial."
[1]
Editor's Note: Former Section 410.120, Street Construction — Commercial, was repealed 2-10-2021 by Ord. No. 21-002. See now Section 410.110, Street Construction.
[Ord. No. 1457 §110.05, 1-5-1999]
Where a public water supply main is reasonably accessible in the judgment of the Planning and Zoning Commission, the subdivision shall be provided with a complete water distribution system adequate to serve the area being platted, including a connection for each lot and appropriately spaced fire hydrants in accordance with the requirements of the Insurance Services Office. The Planning and Zoning Commission shall not approve the final plat thereof until the Department of Natural Resources certifies to the Planning and Zoning Commission that such water supply system is in compliance with the applicable regulations of said Department of Natural Resources.
[Ord. No. 1457 §110.06, 1-5-1999]
Every subdivision shall be provided with a stormwater drainage system adequate to serve the area being platted and otherwise meeting the approval of the officials having jurisdiction.
[Ord. No. 1457 §110.07, 1-5-1999]
A. 
Where a public sanitary sewer main is reasonably accessible in the opinion of the Planning and Zoning Commission, the subdivision shall be provided with a complete sanitary sewer system connected with such sewer main, including a lateral connection for each lot. Such system and connection shall comply with the regulations of the Department of Natural Resources and Clean Water Commission.
1. 
Where a public sanitary sewer system is not reasonably accessible, in the opinion of the Planning and Zoning Commission, but where plans for the installation of sanitary sewers in the vicinity of the subdivision have been prepared and approved by the Department of Natural Resources, the developer shall install sewers in conformity with such plans. Where immediate connection is not possible and until such connection with the sewer system in the district can be made, the use of private sewer treatment facilities may be permitted, provided such disposal facilities are installed and maintained in accordance with the regulations and requirements of the City of Versailles and the Department of Natural Resources.
2. 
Where no sewers are accessible and no plans for a sewer system have been prepared and approved, the developer shall either install a sewerage collection and disposal system in accordance with the requirements of the preceding paragraph, or individual disposal devices may be installed on each lot within the subdivision, provided that no individual disposal devices shall be permitted unless the lots to be so served have sufficient areas to allow adequate soil absorption area for on-site sewerage disposal under potential adverse soil slope and subsurface geology conditions. The Department of Natural Resources, with the concurring approval of the Planning and Zoning Commission, may modify lot area requirements in relation to soil conditions and other pertinent facts and findings in any particular subdivision. All such individual devices and systems shall be constructed and maintained in accordance with State regulations.
[Ord. No. 1457 §110.08, 1-5-1999]
A. 
Lighting. Provisions shall be made by the developer for adequate lighting of public streets within the proposed subdivision in accordance with standards and specifications of the Planning and Zoning Commission.
B. 
Street Signs. Street name signs shall be installed in accordance with the specifications of the Planning and Zoning Commission or its representative.
[Ord. No. 1605 §§1 — 4, 6-3-2003]
A. 
The developer of a proposed subdivision shall provide the City, any electrical utility company serving the area where the subdivision is located and the Planning and Zoning Commissions with a copy of the proposed plat which shall include a schematic of the electrical services in the platted area. The electrical providers in consultation with the developer, the Planning and Zoning Commission and the City will submit a plan to the developer for location of street lights as well as the specifications therefor within the developer's proposed subdivision. The plat shall show the street location and the electrical schematic of the lines serving the said street lights when submitted to the City for approval.
B. 
The Superintendent of Public Works shall have general supervisory authority to insure that the placement and installation specifications are properly complied with by the developer. Those costs of installation not covered by the utility provider shall be borne by the developer. The cost of the monthly electrical charge for the operation of the street light shall be borne by the City.
C. 
The street lights must be installed by the developer prior to the acceptance of the streets therein by the City for maintenance purposes.
D. 
All developers of any subdivision of the City shall show on the plat thereof filed with the City the location of all street lights. The developers shall be required to provide for the erection of any such street light at the time any street which is served by the light is opened for public use or when the street is accepted by the City for maintenance purposes, whichever event happens first. Such street lights should be no closer than three hundred (300) feet or no further than five hundred (500) feet apart. Exceptions must be approved by the Board of Aldermen.
[Ord. No. 1457 §110.09, 1-5-1999]
Easement for poles or underground conduits for electric light or telephone lines shall be provided along lot lines in accordance with the Public Service Commission.
[Ord. No. 1457 §110.10, 1-5-1999]
A. 
Permanent and other monuments shall be in accordance with the specifications established by the Planning and Zoning Commission.
1. 
Monumentation. The subdivider's surveyor shall establish or confirm the prior establishment of permanent monuments at each and every controlling corner on the boundaries of the parcel or tract of land being subdivided. In addition, the subdivider's surveyor shall establish at least two (2) permanent monuments for each and every block in the subdivision. Such monuments shall be placed so as to create base lines in each block from which all points and lines in that block are laid out. The permanent monuments will be either concrete monuments, case iron or aluminum surveyor markers or brass disk as specified in Missouri Department of Natural Resources 10 CSR 30-2.010. Three (3) Minimum Standards for Property Boundary Surveys.
2. 
Surveying standards. All land surveys shall meet the requirements of the current Minimum Standards for Property Boundary Surveys adopted by the Missouri Department of Natural Resources 10 CSR 30-2.010.
[Ord. No. 1457 §110.11, 1-5-1999]
A. 
Construction plans, including the following, for improvements to be installed shall be prepared by a qualified registered professional engineer and submitted in accordance with the specifications of the official having jurisdiction and no improvements shall be installed until and unless said plans have been received and approved by the said officials.
1. 
Centerline profile. The centerline profile of each proposed street with tentative grades indicated.
2. 
Street crosssection. The crosssection of each proposed street showing the width of pavement, the location and width of sidewalks and the location and size of utility mains.
3. 
Sewer plans and profiles. The plans and profiles of proposed sanitary sewers and storm drainage plans, with grades and sizes indicated, or method of sewage or stormwater disposal.
4. 
Water distribution plan. A plan of the proposed water distribution system showing pipe sizes and the location of valves and fire hydrants.
[Ord. No. 1457 §110.12, 1-5-1999]
Prior to starting any of the work covered by the above plans, after approval thereof the developer shall make arrangements to provide for inspection of the work sufficient, in the opinion of the Zoning Official, to assure compliance with the plans and specifications as approved and written approval obtained from the Planning and Zoning Commission or its representative.
[Ord. No. 1457 §110.13, 1-5-1999]
The construction of all improvements required by these rules and regulations shall be completed within two (2) years from the date of approval of the final plat by the Planning and Zoning Commission, unless good cause can be shown for the granting of an extension of time by authority of the Planning and Zoning Commission.
[Ord. No. 1457 §110.14, 1-5-1999]
The developer shall maintain and keep in repair all required improvements for a period of one (1) year from the date the constructed improvements are approved by the Planning and Zoning Commission or its representative.