A.   Generally: Land proposed for development shall be served by public facilities and services which are adequate to support the proposed development. Land shall not be approved for development unless and until adequate public facilities exist or provision has been made for the following essential public facilities: water service, wastewater treatment and disposal, storm water management, electrical service, telecommunications service and streets.

   B.   Master Plan Consistency Required: Proposed public improvements shall conform to and be properly related to the Mesquite master plan and applicable capital improvements plans.

   C.   Water: All habitable buildings and buildable lots shall be connected to a public water system which is capable of providing water for health and emergency purposes, including adequate fire protection as required in section 9-9-2 of this chapter.

   D.   Wastewater: All habitable buildings and buildable lots shall be served by an approved means of wastewater collection and treatment as required in section 9-9-3 of this chapter.

   E.   Storm Water Management: Drainage improvements shall accommodate potential runoff from the entire upstream drainage area and shall be designed to prevent increases in peaks or velocity of downstream flooding. The city may require the use of control methods such as retention or detention, and/or the construction of off site drainage improvements to mitigate the impacts of the proposed development, pursuant to section 9-9-5 of this chapter. Further, all projects must conform to the requirements of the Clark County regional flood control district.

   F.   Streets and Sidewalks: Proposed streets shall provide a safe, convenient and functional system for vehicular, pedestrian and bicycle circulation, shall be properly related to the master plan, and shall be appropriate for the particular traffic characteristics of each proposed development. Adequate street capacity shall be provided as required in section 9-9-6 of this chapter.

   G.   Phasing: The city may require the phasing of development or improvements in order to maintain current levels of service for existing public services and facilities or for other reasons based upon maintaining the health, safety and general welfare of the city's inhabitants.

   H.   Extension Policies: All public improvements and required easements shall be extended through the parcel on which new development is proposed. Streets, water lines, wastewater systems, drainage facilities, electric lines and telecommunications lines shall be constructed through new development to promote the logical extension of public infrastructure. The city may require the applicant of a subdivision to extend off site improvements to reach the subdivision or oversize required public facilities to serve anticipated future development as a condition of plat approval.

   I.   Easements/Rights of Way:

      1.   Adequate: Except as otherwise provided in the UDO, an applicant for a development approval shall ensure that adequate on site and off site easements are provided for future roadways, water, wastewater and other public utilities.

      2.   Utility Easements: The property owner shall grant adequate utility easements for all public and private utilities along rear and side property lines as required by the director of public works. Utility easements shall be submitted to the zoning official prior to plat recordation.

      3.   Utility Easements; Width: All public utility easements shall be at least ten feet (10') wide along front or back ROW and five feet (5') in other locations. Additional width may be required for reason of unusual topography or the need to use easements for multiple utilities.

      4.   Placement: Easements shall be centered along or to be adjacent to a common property line where practical. All easements for drainage or sewer shall be selectively cleared of undergrowth, trees and other obstructions by the developers prior to final approval. This does not apply to easements which are provided for possible future use.

      5.   Anticipated Traffic Demands: An applicant shall provide adequate on site rights of way for anticipated traffic demands in a manner consistent with the UDO, the master plan and project specific traffic impact analysis (TIA), if applicable. If a TIA, prepared in accordance with subsection 9-9-6C of this chapter shows that a proposed development creates the need for additional off site right of way, the applicant may be required to provide said right of way prior to development approval.

   J.   Construction and Materials: Except as otherwise provided in the UDO, the construction and material specifications shall comply with the standards established by "USPWCOSICCAN".

   K.   Inspections/Acceptance: The city will inspect public improvements to ensure that such improvements are constructed to city standards and specifications. City acceptance of required improvements shall be required prior to use or occupancy of a development.

   L.   Maintenance: The city shall require performance bonds and/or maintenance guarantees for any street, wastewater line or drainage facility as a condition of accepting such improvement in accordance with subsection 9-6-6C of this title. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. B24-004, 9-24-2024)

   A.   Generally: All proposed development shall be connected to a public water system providing adequate supplies for normal usage and emergency needs. The guidelines in table 9-9:1 of this section shall be used to evaluate compliance with this provision. The zoning official and/or staff review committee may recommend and the city council may approve subdivisions which do not comply with the guidelines in table 9-9:1 of this section, subject to the following conditions:

      1.   The water supplier has reviewed the proposed development and stated in writing that it has budgeted improvements to provide water supplies consistent with the guidelines in table 9-9:1 of this section within two (2) years or that there is no feasible way to meet the water supply guidelines within five (5) years;

      2.   The fire department has reviewed the proposed development and has recommended alternative strategies for delivering fire protection services to the proposed development; and

      3.   The city council finds that the proposed development:

         a.   Will be adequately served for normal water demands;

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         b.   Will not reduce system water pressures or supplies so as to create a hazard to the public health or safety within other development served by the water system;

         c.   Will not pose a threat to life or property within or adjacent to the proposed development due to inadequate fire protection; and

         d.   Will not impede the logical extension of services to serve growth in the city in accordance with the master plan.

   B.   Design Standards: All water supply systems shall be designed and constructed to meet APWA and AWWA standards or other standard adopted by the water supplier, including the VVWD and Mesquite uniform standards. Written authorization from the water supplier shall be required prior to approval of any system which does not meet these standards.

   C.   Off Site Improvements: The developer of a parcel shall provide for on site and off site improvements required to adequately serve a proposed development; provided, however, that the zoning official may authorize development to proceed if the director of public works certifies that the necessary capital improvements have been funded for construction within eighteen (18) months. In no event shall a certificate of occupancy be granted prior to connection to an adequate public water supply.

 

   D.   Extension/Oversizing: Upon recommendation of the Virgin Valley water district, the public works director, the planning commission or the city council may require that water lines be oversized to accommodate future development. The city or Virgin Valley water district shall arrange to reimburse the developer for the cost in excess of the minimum line size required to serve the proposed development; provided, that no reimbursement shall be granted for installation of a water main with less than or equal to a ten inch (10") diameter.

   E.   Water System Construction: The zoning official shall have public works review and approve all proposed public water system improvements prior to construction and shall require inspection during construction of such improvements and final approval prior to issuance of an occupancy permit.

   F.   Water System Easements: The property owner shall dedicate adequate easements to accommodate all water system facilities required to serve new development, except individual service lines. The director of public works, in consultation with the Virgin Valley water district, shall ensure the location and dimensions of required easements are properly identified on the plan, but in no instance shall an easement be narrower than ten feet (10') in width. Easements should follow property lines to the greatest extent possible. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. B24-004, 9-24-2024)

   A.   Generally: The following developments shall be connected to a centralized wastewater collection and treatment system complying with this section:

      1.   All new, nonresidential development;

      2.   All residential development located on lots smaller than one-half (1/2) acre;

      3.   All new subdivisions located within one thousand two hundred feet (1,200') of an existing wastewater system that can provide adequate service;

      4.   All existing development located within five hundred feet (500') of an existing wastewater system that can provide adequate service;

      5.   Any development located on soils which cannot support on site treatment and disposal; and

      6.   Any other development which cannot obtain on site treatment and disposal system approval from the Southern Nevada health district.

   B.   Design Standards: All wastewater systems shall be designed and constructed to comply with Clark County standards.

      1.   These design standards are not intended to cover extraordinary situations. Deviations will be allowed and may be required in those instances where considered justified by the director of sanitation.

      2.   Sanitary sewer systems should be designed or built for the ultimate tributary population. Due consideration should be given to current zoning regulations and approved planning and zoning reports where applicable. Sewer capacities should be adequate to handle the anticipated maximum hourly quantity of sewerage and industrial waste, together with an adequate allowance for infiltration and other extraneous flow. Design flows shall be subject to approval of the director of sanitation for each particular development.

   C.   Off Site Improvements: The developer of a parcel shall provide for on site and off site improvements required to adequately serve a proposed development; provided, however, that the zoning official may authorize development to proceed if the director of public works certifies plans are approved for the necessary capital improvements and have been bonded to ensure construction within eighteen (18) months. In no event shall a certificate of occupancy be granted prior to completion of off site improvements.

   D.   Extension/Oversizing: Upon recommendation of the director of sanitation or the planning commission, the city council may require that wastewater lines be oversized to accommodate future development. The city shall reimburse the developer for the cost in excess of the minimum line size required to serve the proposed development; provided, that no reimbursement shall be granted for installation of a wastewater line with a diameter of eight inches (8") or less.

   E.   Wastewater System Construction: The director of sanitation shall review and approve all proposed wastewater system improvements prior to construction, and shall require inspection during construction of such improvements.

   F.   Wastewater System Easements: The property owner shall dedicate adequate easements to accommodate all wastewater system facilities required to serve new development, except individual service lines. The zoning official shall identify the location and dimensions of required easements, but in no instance shall an easement be narrower than twenty feet (20') in width. Easements should follow property lines to the greatest extent possible. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. 345, 6-27-2006, eff. 7-20-2006; Ord. B24-004, 9-24-2024)

   A.   Private Systems, Generally: Where septic tanks or other individual sewage disposal systems are to be installed, they shall be subject to Southern Nevada health district and city approval and compliance with any applicable county and/or state regulations.

   B.   Permit Required: Any person who desires to install, add to, alter, expand or repair a private waste treatment system shall make a written application on forms provided by the director of sanitation or Southern Nevada health district. No person shall install, add to, alter, expand or repair a private waste treatment system without a valid and unrevoked permit issued by the city and/or Southern Nevada health district.

   C.   Failure To Comply With Stop Work Order: Failure to comply with a stop work order or other lawful order of the zoning official issued pursuant to this chapter is a violation of these regulations.

   D.   One Residence Per Individual On Site System: Only one structure shall be connected to an individual on site sewage treatment system.

   E.   Public Nuisance: Any private waste treatment system installed, added to, altered, expanded or repaired in violation of this chapter and the rules and regulations of the zoning official is a threat to the health, safety and welfare of the city and is a public nuisance.

   F.   Private Waste Treatment, Issuance Of Permit: The building official shall issue the appropriate permit in compliance with this chapter and any rule or regulation adopted pursuant to this chapter, and payment of the appropriate fee.

   G.   Private Waste Treatment, Standards: All private waste disposal systems shall be installed, altered, expanded, repaired or operated according to the Mesquite sanitation district standards and the following standards:

      1.   Systems Designed By Professional Registered Engineer: All individual on site sewage disposal systems shall be designed by an engineer registered in the state. A minimum of two (2) copies of the design plan shall be submitted to the zoning official for review. Design plans must be approved by the director of sanitation and building official before construction of the system begins. System installations shall be inspected and approved by the city before backfilling;

      2.   Not Create Public Nuisance: The location and installation of private waste disposal systems shall be such that with reasonable maintenance, the private waste disposal system will function in a sanitary manner and will not create a nuisance, health hazard or endanger the safety of any domestic water supply;

      3.   Factors Considered: When reviewing an application for an individual waste treatment system, consideration shall be given to the size and shape of the lot, slope of natural and finished grade, soil type and classification, depth of ground water, proximity of existing or future water supplies and possible expansion of the system;

      4.   Minimum Lot Size: All lots platted subsequent to May 1, 1996, shall be a minimum of one-half (1/2) acre in size and contain a minimum of twenty thousand (20,000) square feet of suitable land designed for on site sewage treatment;

      5.   Basis For Type Of System: The type of system shall be determined by a registered professional engineer on the basis of location, topography, soil permeability and ground water level;

      6.   Designed To Receive All Sewage: The system shall be designed to adequately receive all sewage from the dwelling. Footing or roof drainage shall not enter any part of the system;

      7.   Percolation Test: Percolation tests shall be made as required by the Mesquite director of sanitation or Southern Nevada health district. The tests shall be conducted by or under the supervision of an engineer registered in the state;

      8.   Sewage Treatment, Issuance Of Rules And Regulations: The director of sanitation may promulgate reasonable rules and regulations to implement the provisions of this section.

         a.   Minimum Standards: Any rule and regulation promulgated shall meet the minimum state standards of the Southern Nevada health district, but nothing in this chapter shall prevent the director of sanitation and building official from requiring compliance with higher requirements than the state or county regulations.

         b.   Notice Of Hearing: Notice of public hearing on any proposed rule or regulation shall be in at least one newspaper having general circulation within the city at least ten (10) days before the hearing.

         c.   When Effective: Rules and regulations issued by the director of sanitation and building official shall be effective after approval by the city council.

         d.   Enforcement Of Rules: The director of sanitation and building official may enforce this chapter and the rules and regulations adopted under this chapter in the manner set forth below.

         e.   Suspend Or Revoke Permit: The director of sanitation and building official may suspend or revoke any permit for noncompliance with this chapter or any rule or regulation issued pursuant to this chapter.

         f.   Notice Of Violation: When the director of sanitation and building official determines a violation exists, the building official shall notify the violator in writing. Such notice of violation shall be delivered to the property owner who is deemed to be the person causing the violation or the legally authorized representative of the person or mailed to the last known address of that person.

         g.   Stop Work Order Issued: In addition to the notice of violation, the director of sanitation and building official may issue a written stop work order if it is believed that the violation poses a serious threat to health and safety. The stop work order shall be delivered to the owner of the property involved, to the agent of the owner or to the person doing the work.

         h.   Removal And Reinstallation Of System: The director of sanitation and building official may require a system installed in violation of this section and the rules and regulations issued pursuant to this section be removed and reinstalled in compliance with this section and any rules and regulations adopted.

         i.   Alternative Method: If the system installed in violation of this section and the rules and regulations issued under this section cannot be reinstalled and be in compliance, the director of sanitation and building official may approve an alternative method of sewage disposal. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. 345, 6-27-2006, eff. 7-20-2006; Ord. B24-004, 9-24-2024)

   A.   Purpose: The purposes of these storm water management provisions are to protect life and property from reasonably preventable flood hazards; protect the quality of surface waters from contamination, and to minimize loss of valuable wildlife by preserving habitat and linkages between wildlife habitat areas.

   B.   Design Objectives:

      1.   Minimum Interference: In rural, suburban and, where appropriate, urban areas, natural drainageways shall be retained to minimize interference with floodwater conveyance, floodwater storage, wetlands, and both surface and subsurface hydrology. The director of public works may approve modifications to natural channels that are consistent with the other provisions of the UDO.

      2.   Exposure; Nuisances: Development design should comply with CCRFCD's hydrologic criteria and drainage design manual and reduce the exposure of people and property to flood hazards and nuisances associated with inadequate management of storm water runoff.

      3.   Erosion: Erosion and sedimentation problems should be minimized to conserve/enhance water quality and conserve valuable topsoil.

      4.   Floods: Development design should accommodate large floods and smaller, more frequent floods along major and minor waterways.

      5.   Future Expenses: Storm water systems should be designed to minimize future operational and maintenance expenses.

      6.   Public Facilities Exposure: Storm water systems should be designed to reduce the exposure of streets, utilities and other public facilities to damage from storm water.

      7.   Rescue And Relief Efforts: Development design should minimize need for rescue and relief efforts from floods and provide sufficient access for such efforts when needed.

   C.   Floodplain Management:

      1.   Scope Of Floodplain Management: The provisions of this section shall apply to all areas of the city identified on the flood insurance rate maps (FIRM) or floodway maps as promulgated by the federal emergency management agency (FEMA).

      2.   Disclaimer Of Liability: The provisions of this section do not imply or otherwise warrant that areas outside of the FIRM or floodway maps will be free from flooding or flood damage, nor does this subsection create liability on the part of the city, its officers or employees for any flood damages that may result from reliance on these floodplain management provisions, FEMA or any regulations or administrative decision made hereunder.

      3.   Permit Required: In all areas covered by these floodplain management provisions, no development or construction, including manufactured homes, located, extended, converted, structurally altered or otherwise shall be permitted except upon city issuance of a permit to develop granted under the procedures stated herein.

         a.   No person shall initiate any development, construction or substantial improvement or cause the same to be done within a designated floodplain without first obtaining a separate permit for development under these floodplain management provisions and in compliance with FEMA regulations.

         b.   Application for a permit for development, construction or substantial improvement within a designated floodplain shall be made in accordance with CCRFCD regulations.

      4.   Residences Within Designated Floodplain: All residences to be placed or substantially improved within a designated floodplain shall be elevated on a permanent foundation such that the lowest floor of the manufactured home is at least eighteen inches (18") above base flood elevation and shall be permanently anchored to said foundation.

      5.   Preventing Water Accumulation: Electrical, heating, ventilation, plumbing and air conditioning equipment and other service facilities shall be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.

      6.   Automatic Equalization Of Hydrostatic Flood Forces: For all new construction and substantial improvements, fully enclosed areas below the lowest floor that are subject to flooding shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwater. Designs for meeting this requirement must either be certified by a registered professional engineer or architect or must meet or exceed the following minimum criteria: A minimum of two (2) openings having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding shall be provided. The bottom of all openings shall be no higher than one foot (1') above grade. Openings may be equipped with screens, louvers or other coverings or devices; provided, that they permit the automatic entry and exit of floodwater.

      7.   Enforcement Officer: The director of public works or building official is hereby designated as the enforcement officer for compliance under these floodplain management provisions and FEMA regulations.

      8.   Duties Of Enforcement Officer: The duties of the enforcement officer shall include, but not be limited to, the following:

         a.   Review of all applications for development permits to require that sites are reasonably safe from flooding and that the permit requirements of this section have been satisfied as well as the other requirements of these regulations;

         b.   Review of all permits for proposed developments to confirm that all necessary permits have been obtained from those federal, state or local governmental agencies from which prior approval is required;

         c.   Notify adjacent communities and the appropriate state agencies prior to any alteration or relocation of a watercourse, and to provide evidence of such notification for FEMA;

         d.   Require that maintenance is provided within the altered or relocated portion of said watercourse so that the flood carrying capacity is not diminished;

         e.   Require verification, recording and updating of records of the actual elevation (in relation to mean sea level) of the lowest floor (including basement) of all new or substantially improved structures, using reference marks (RM) established by FEMA;

         f.   Require verification, recording and updating of records of the actual elevation (in relation to mean sea level) using reference marks (RM) established by FEMA, to which the new or substantially improved structures have been floodproofed and certified by a qualified individual as defined by FEMA when "floodproofing", as defined herein, is utilized for a particular structure;

         g.   Take any actions necessary to assure compliance with FEMA regulations in the granting or denial of applications for any permits in a designated floodplain;

         h.   Require that all proposals for subdivisions and other new development (including manufactured home subdivisions or parks) are consistent with the need to minimize flood damage and that:

            (1)   All public utilities and facilities such as sewer, gas, electrical and water systems are located, elevated and constructed to minimize or eliminate damage from floods; and

            (2)   Adequate drainage is provided for the purpose of reducing exposure to flood hazards; and

            (3)   Regulatory flood elevations utilizing FEMA "RM" are included in all proposals for all development.

      9.   Floodplain Permit Application Requirements: All written applications for development or substantial improvement in a designated floodplain shall:

         a.   Identify and describe the development to be covered by the permit;

         b.   Describe the land on which the proposed development is to be done by lot, block, tract and house and street address, or similar description that will readily identify and definitely locate the proposed building or development;

         c.   Indicate the use or occupancy for which the proposed development is intended;

         d.   Be accompanied by plans and specifications for proposed construction;

         e.   Be signed by the proposed permittee or his authorized agent who may be required to submit evidence to indicate such authority;

         f.   Provide such other information as reasonably may be required by the enforcement officer or as required from the applicant under any part of these regulations, including, but not limited, to evidence of compliance with FEMA regulations or guidelines for anchoring to prevent flotation and lateral movement, the use of flood resistant materials and utility equipment and construction methods which minimize flood damage.

      10.   Floodplain Considerations In Granting Variances: The board of zoning adjustment and Clark County flood control district shall hear and decide appeals and requests for variances from the requirements of this subsection. In all situations, the board shall begin its consideration based on the premise that variances are disfavored and should only be allowed upon a strong showing by the applicant that the circumstances dictate otherwise. In passing upon such applications, the board shall consider all technical evaluations, all relevant factors, standards specified in other sections of these regulations; and

         a.   The danger that materials may be swept onto other lands to the injury of others;

         b.   The danger to life and property due to flooding or erosion damage;

         c.   The susceptibility of the proposed land use to flood damage and the effect of such damage on the individual owner;

         d.   The importance of the services provided by the proposed land use to the community;

         e.   The necessity to the proposed land use of a waterfront location, where applicable;

         f.   The availability of alternative locations, not subject to flooding or erosion damage, for the proposed land use;

         g.   The compatibility of the proposed land use with existing and anticipated development;

         h.   The relationship of the proposed land use to the comprehensive plan and floodplain management program for that area;

         i.   The safety of access to the property in times of flood for ordinary and emergency vehicles;

         j.   The expected heights, velocity, duration, rate of rise and sediment transport of the floodwaters and the effects of wave action, if applicable, expected at the site; and

         k.   The costs of providing governmental services during and after flood conditions, including maintenance and repair of public utilities and facilities such as sewer, gas, electrical and water systems, and streets and bridges. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. B24-004, 9-24-2024)

   A.   Generally:

      1.   Mitigating Measures: No development shall be approved if such development, at full occupancy, will result in or increase traffic on an arterial or collector so that the street does not function at a level of service C or better as defined by the transportation research board, national research council in the highway capacity manual. The applicant may propose and construct approved traffic mitigation measures to provide adequate roadway capacity for the proposed development. The applicant for any development projected to generate more than five hundred (500) vehicle trips per day shall submit a traffic impact analysis.

      2.   Level of Service Definitions: In general, the various levels of services are defined as follows for uninterrupted flow facilities:

         a.   Level of service A represents free flow. Individual users are virtually unaffected by the presence of others in the traffic stream. Freedom to select desired speeds and to maneuver within the traffic stream is extremely high. The general level of comfort and convenience provided to the motorist, passenger or pedestrian is excellent.

         b.   Level of service B is in the range or stable flow, but the presence of other users in the traffic stream begins to be noticeable. Freedom to select desired speeds is relatively unaffected, but there is a slight decline in the freedom to maneuver within the traffic stream from LOS A. The level of comfort and convenience provided is somewhat less than at LOS A, because the presence of others in the traffic stream begins to affect individual behavior.

         c.   Level of service C is in the range of stable flow, but marks the beginning of the range of flow in which the operation of individual users becomes significantly affected by interactions with others in the traffic stream. The selection of speed is now affected by the presence of others, and maneuvering within the traffic stream requires substantial vigilance on the part of the user. The general level of comfort and convenience declines noticeably at this level.

         d.   Level of service D represents high density, but stable, flow. Speed and freedom to maneuver are severely restricted, and the driver or pedestrian experiences a generally poor level of comfort and convenience. Small increases in traffic flow will generally cause operational problems at this level.

         e.   Level of service E represents operating conditions at or near the capacity level. All speeds are reduced to a low, but relatively uniform value. Freedom to maneuver within the traffic stream is extremely difficult, and it is generally accomplished by forcing a vehicle or pedestrian to "give way" to accommodate such maneuvers. Comfort and convenience levels are extremely poor, and driver or pedestrian frustration is generally high. Operations at this level are usually unstable, because small increases in flow or minor perturbations within the traffic stream will cause breakdowns.

         f.   Level of service F is used to define forced or breakdown flow. This condition exists wherever the amount of traffic approaching a point exceeds the amount which can traverse the point. Queues form behind such locations. Operations within the queue are characterized by stop and go waves, and they are extremely unstable. Vehicles may progress at reasonable speeds for several hundred feet or more, then be required to stop in a cyclic fashion. Level of service F is used to describe the operating conditions within the queue, as well as the point of the breakdown. It should be noted, however, that in many cases operating conditions of vehicles or pedestrians discharged from the queue may be quite good. Nevertheless, it is the point at which arrival flow exceeds discharge flow which causes the queue to form, and level of service F is an appropriate designation for such points.

   B.   Design:

      1.   Generally: The standards established by this section shall apply to all public and private roads in the city. The master plan shall serve as a guide for the location and scale of future arterial and collector streets.

      2.   Classification: All city streets shall be classified as either an arterial, major collector, minor collector, local or residential roadway. Any street that is not already classified in the master plan shall be classified by the director of public works, subject to confirmation by the city council. In classifying roads, the city shall consider projected traffic demands after twenty (20) years of development.

      3.   Street Design Standards: All street improvements shall be designed according to standards adopted by the department of public works, included in the Clark County uniform standard drawings for public works construction.

      4.   Alleys: Alleys will not be approved in residential districts except where justified by special conditions such as the continuation of an existing alley in the same block.

      5.   Dead-End Alley: Dead-end alleys shall be avoided wherever possible. If unavoidable, dead-end alleys may be approved if adequate turnaround facilities are provided at the closed end.

      6.   Cul-De-Sac Approaches: Cul-de-sac approaches shall have a minimum right of way radius of fifty one feet (51') for single-family and two-family use, and sixty feet (60') for all other uses. The maximum length shall be no more than seven hundred fifty feet (750') from the nearest intersecting through street. This depth limit applies to multiple streets having only one outlet to an arterial or collector. Development on cul-de-sacs longer than three hundred feet (300') shall not generate more than one hundred (100) vehicle trips per day as projected using current data from the institute of transportation engineers.

      7.   Cul-De-Sac Turnarounds: Cul-de-sac turnarounds shall have an outside curb radius of fifty feet (50'), plus sufficient area to accommodate sidewalks within the right of way, plus easements as needed for utilities, including drainage and mail service. Temporary turnarounds may be provided at the end of streets that will be extended within three (3) years from the beginning of development activity on the cul-de-sac.

      8.   Temporary Cul-De-Sac: A street in a phased development may be constructed without a turnaround if it is constructed one lot in length. A street constructed in a phased development which is longer than one lot shall have a temporary turnaround meeting the cul-de-sac dimensions. All temporary cul-de-sacs shall be asphalt surfaced.

      9.   General Street Arrangement:

         a.   Adequate Traffic Circulation: Provisions shall be made for adequate traffic circulation. Local and residential streets shall be designed to limit through traffic.

         b.   Lot Access: Every lot shall have access to a public right of way accepted by the appropriate governing body.

         c.   Multiple Intersections: No more than two (2) streets shall cross or intersect at the same point. Intersections, including intersections offset on opposite sides of a street, shall be separated by at least two hundred fifty one feet (251') which shall be measured along the centerline of the primary street from centerline to centerline of the intersecting streets.

         d.   Street Connections: Streets should connect with streets already dedicated in adjoining or adjacent subdivisions and provide for future connections to adjoining unsubdivided tracts whenever possible.

         e.   Street Names: New streets shall be named so as to provide continuity of name with existing streets and to prevent conflict or confusion with identical or similar existing street names. If a street is a continuation of a named street or is in alignment with an existing street, as determined by the zoning official and director of public works, the extension of the street shall bear the same name of the existing street.

      10.   Street Dedication And Maintenance:

         a.   No road or street shall be accepted by the city unless it meets the design standards established by these regulations and all other design standards established by ordinance or law.

         b.   Dedication of half streets will not be approved, except where it is essential to the reasonable development of a subdivision and in conformity with all other requirements of these regulations, or where it is found that it will be impracticable to require dedication of the other half when the adjoining property is subdivided, or where it is necessary to acquire the remaining half by condemnation. Dedication of reserve strips shall not be approved.

   C.   Traffic Impact Analysis Guidelines:

      1.   Purpose: Traffic impact studies have the ability to help the city of Mesquite in forecasting additional traffic stemming from a proposed development. It is important to note that by requiring a traffic impact study, the city can protect the substantial investment it has in the transportation infrastructure. These studies have potential to help decide what improvements if any need to be made to the surrounding transportation system with the addition of the proposed project. The city may utilize these studies to determine effective land use planning and resource allocation, identify potential problems, reduce negative impacts, and provide clear direction to city decision makers. The main purpose of the traffic impact analysis is to determine reasonable traffic conditions and to mitigate issues, helping to maintain safety on the city's transportation system.

      2.   Implementation Statement: The City of Mesquite desires to operate a safe and efficient transportation system. The management of access to the system in an effective manner is vital to maintaining the overall safety and efficiency of the system. Development of a site, whether new construction or redevelopment of an existing site, has an effect on the surrounding area. These guidelines present a detailed process and set of requirements for completing a traffic impact study with the goal of minimizing the potential negative effects of new development and to determine essential modifications or improvements to be made to the existing and future transportation system within the city of Mesquite. The procedures outlined in these guidelines present the minimum information required to conduct a traffic impact analysis (TIA). The preparer of the TIA shall contact the City of Mesquite development manager to discuss the scope of analysis, methodology, and level of detail required for the project prior to beginning the analysis.

      3.   Definitions: Certain words or phrases unique to this subsection C shall be construed as herein set out unless it is apparent from the context that they have a different meaning:

 

      4.   Requirements: Prior to the completion of any type of traffic impact study, discussion between the developer, the study consultant and the city should take place to discuss the outline and requirements of the analysis. Depending upon the characteristics of a proposed site, the city may request an in person meeting take place. The following requirements are guidelines for the completion of a traffic impact study and additional analysis may be required by the city dependent upon the distinct qualities of a proposed development. Table 1 of this section presents the city's four (4) levels of traffic impact study requirements ranging from no study being required to the completion of a regional traffic impact study.

 

 

         a.   No Traffic Impact Study Required: If a proposed development is anticipated to generate less than fifty (50) peak hour vehicle trips, a traffic impact study will not be required, unless otherwise requested by the city.

         b.   Category 1 Traffic Impact Study: If a proposed development consisting of a single land use designation is anticipated to generate fifty (50) or more peak hour vehicle trips but less than two hundred (200) peak hour vehicle trips to the adjacent street system, a category 1 study will be required. Table 2 of this section illustrates several potential land uses along with their corresponding rates and number of units calculated to generate fifty (50) peak hour vehicle trips to the adjacent street system. This study category is required to include the following components:

            (1)   Kickoff meeting with the city.

            (2)   Review existing master plan policies and unified development code sections.

            (3)   Site plan including proposed driveway locations and widths.

            (4)   Existing traffic conditions and peak hour levels of service on adjacent roadways and intersections.

            (5)   Accident history for adjacent roadways and intersections.

            (6)   Number of units (dwelling units, square feet, etc.).

            (7)   Trip generation comparison to existing land use.

            (8)   Recommended traffic mitigation measures for any development which is projected to result in an LOS D or worse. Measures shall result in projected LOS C or better.

            (9)   Other information as deemed necessary by the zoning official or director of public works to measure the impact of the project on the city.

         c.   Category 2 Traffic Impact Study: If a proposed development is anticipated to generate two hundred (200) or more peak hour vehicle trips but less than one thousand five hundred (1,500) peak hour vehicle trips to the adjacent street system, a category 2 study will be required. Table 3 of this section illustrates several potential land uses along with the rates and number of units calculated to generate two hundred (200) peak hour vehicle trips to the adjacent street system. This study is required to include the following components:

            (1)   Kickoff meeting with the city.

            (2)   Review existing master plan policies and unified development code sections.

            (3)   Site plan including proposed driveway locations and widths.

            (4)   Existing traffic conditions and peak hour levels of service on adjacent roadways and intersections.

            (5)   Study area limits include all access driveways, adjacent roadways and adjacent major intersections, plus the first signalized intersection in each direction up to one mile. Additional areas may be added based on development size and specific site or local issues and policy.

            (6)   Trip generation (daily and peak hour) and comparison to existing land use.

            (7)   Trip distribution and trip assignment.

            (8)   Accident history for adjacent roadways and intersections within prescribed study area.

            (9)   Existing and future A.M. and P.M. peak hour levels of service for all project roadways/intersections.

            (10)   Recommended traffic mitigation measures for any development which is projected to result in an LOS D or worse. Measures shall result in projected LOS C or better.

            (11)   Traffic control device warrants (if requested).

            (12)   Turn lane lengths for warranted auxiliary lanes at all project intersections.

            (13)   Potential additional analysis requested by the city specific to proposed development.

            (14)   Other information as deemed necessary by the zoning official or director of public works to measure the impact of the project on the city.

      The extent of the study will consist of all roadways and major intersections within one mile of the proposed project. The first major signalized intersection should be included in the analysis if it is outside of the one mile range.

      Analysis should be completed for the existing study year and for the proposed project opening year with existing conditions as well as proposed lane configurations and traffic control.

      Before beginning the completion of a category 2 traffic impact study, discussion between the developer, the study consultant and the city should take place to discuss the outline and requirements of the analysis. Dependent upon the characteristics of a proposed project, additional analysis may be required. Examples of potential additional analysis include an accident analysis or a traffic signal warrant analysis. If a development is anticipated to generate more than five hundred (500) vehicle trips during the peak hour, the project area may be extended and analysis for supplementary horizon years could be called for.

         d.   Category 3 Traffic Impact Study: If a proposed development is anticipated to generate one thousand five hundred (1,500) or more peak hour vehicle trips to the adjacent street system, it is anticipated to have a regional effect and a category 3 study will be required. Table 4 of this section illustrates several potential land uses along with the rates and number of units calculated to generate one thousand five hundred (1,500) peak hour vehicle trips to the adjacent street system. The components required in a category 2 study will also be included in a category 3 traffic impact study, however additional analysis may be necessary. For example, the project area may be extended and analysis for supplementary horizon years and phases may be called for based upon the city's discretion specific to the proposed development. The study is required to include the following components:

            (1)   Kickoff meeting with the city.

            (2)   Review existing master plan policies and unified development code sections.

            (3)   Site plan including proposed driveway locations and widths.

            (4)   Existing traffic conditions and peak hour levels of service on adjacent roadways and intersections.

            (5)   Study area limits include all access drives, adjacent roadways and adjacent major intersections, plus the first signalized intersection in each direction up to a distance determined locally. Additional areas may be added based on development size and specific site or local issues and policy.

            (6)   Trip generation (daily and peak hour) and comparison to existing land use.

            (7)   Trip distribution and trip assignment.

            (8)   Accident history for adjacent roadways and intersections within prescribed study area.

            (9)   Existing and future A.M. and P.M. peak hour levels of service for all project roadways/intersections.

            (10)   Recommended traffic mitigation measures for any development which is projected to result in an LOS D or worse. Measures shall result in projected LOS C or better.

            (11)   Traffic control device warrants (if requested).

            (12)   Turn lane lengths for warranted auxiliary lanes at all project intersections.

            (13)   Potential additional analysis requested by the city specific to proposed development.

            (14)   Other information as deemed necessary by the zoning official or director of public works to measure the impact of the project on the city.

 

 

 

      5.   Approach And Methods: The locations of the site access points and the existing roadways will determine the impact to the safety and operational characteristics of the existing adjacent roadways and the surrounding transportation network. The site's internal circulation system should allow for all vehicle circulation to take place on site and not spill over onto adjacent streets. Driveway width and type should accommodate all anticipated types of vehicles, including large delivery trucks anticipated for the type of development. Circulation and access for fire trucks and emergency vehicles should also be considered. For each driveway an LOS C should be the minimum anticipated during the weekday peak hour. Parking areas should have enough capacity to meet site generated demands. Specific dimensions, parking angles, and parking ratio requirements should be designed according to the latest edition of ITE's "Parking Generation". The method used as a basis for trip generator calculations for all traffic impact studies can be found in the latest version of ITE's "Trip Generation Manual". Capacity analyses should be conducted using computer software such as Highway Capacity Software (HCS), Synchro/Sim Traffic or VISSM based upon the methods presented in the latest edition of the "Highway Capacity Manual".

         a.   Analysis Report Format:

            (1)   Executive Summary:

               (A)   Provide an overview of the purpose of the report and the overall findings of the analysis.

            (2)   Introduction/Project Description:

               (A)   Provide a description of the project including land use, size, location, and jurisdiction.

            (3)   Existing Conditions:

               (A)   Description of all surrounding project roadways and intersections including pedestrian and bicycle facilities, utilities, geometric features, lane configurations, traffic control, etc.

               (B)   Existing land uses within the project area.

            (4)   Existing Traffic Data:

               (A)   Weekday A.M. and P.M. peak hour traffic volume counts should be taken at the existing project intersections.

               (B)   Weekday twenty four (24) hour bidirectional traffic volume counts along roadways or twenty four (24) hour intersection approach counts should be taken by city's request.

            (5)   Trip Generation:

               (A)   Utilizing the land use codes and rates provided in the latest edition of the Institute Of Transportation Engineers' "Trip Generation Manual", weekday daily and peak hour vehicle trips generated by the project should be presented.

            (6)   Trip Distribution:

               (A)   Based upon existing conditions and/or city direction.

               (B)   Include clear explanation of distribution methods.

            (7)   Trip Assignment:

               (A)   Assignment of anticipated new trips to the project roadways/intersections.

               (B)   Any trip reduction values, including pass- by trip reduction factors, must be approved by the city prior to the completion of analysis.

            (8)   Accident Analysis:

               (A)   If required, provide analysis for the latest three (3) years of accident data available within the project corridor and at the project intersections.

               (B)   Analysis must be presented by collision type and injury severity.

            (9)   Projected Traffic Data:

               (A)   Traffic projections are to be calculated utilizing a compounded annual growth rate determined by review and analysis of past traffic data along the surrounding street system unless otherwise provided by the city.

               (B)   Traffic projections along the surrounding roadway system without as well as within the proposed development shall be calculated and presented in the study.

            (10)   Capacity Analysis:

               (A)   Weekday A.M. and P.M. peak hour levels of service shall be calculated for all project roadways and intersections for existing study year and future study year(s) with existing conditions (no build) and proposed lane configurations/traffic control (build) based upon the methodology presented in the most current version of the "Highway Capacity Manual".

            (11)   Turn Lane Analysis:

               (A)   Determine if right or left turn auxiliary lanes are required at the project study intersections with the inclusion of the proposed development based upon table 5 of this section.

               (B)   If turn lanes are warranted, determine the turn lane length required with traffic from the proposed development based upon AASHTO requirements as well as table 1-2 in the city of Mesquite master plan.

            (12)   All-Way Stop Analysis:

               (A)   If an all-way stop analysis is required/requested by the city, the need for an all- way stop controlled intersection shall be determined using the methodology presented in the most current version of the "Manual On Uniform Traffic Control Devices" (MUTCD).

            (13)   Traffic Signal Warrant Analysis:

               (A)   If a traffic signal warrant analysis is required/requested by the city, the need for new traffic signals shall be determined using the methodology presented in the most current version of MUTCD.

               (B)   Traffic signal warrants 1 and 2 should be performed unless otherwise stated.

            (14)   Mitigation:

               (A)   Recommended traffic mitigation measures for any development which is projected to result in a level of service D or worse as defined by the Transportation Research Board's "Highway Capacity Manual". Said measures shall result in a projected level of service C or better.

            (15)   Conclusions/Recommendations:

               (A)   Present the findings of the analysis including transportation impacts and the need for potential improvements.

            (16)   Appendices:

               (A)   Include all data and generated reports, etc.

 

 

      6.   Figures To Be Included In The Report:

         a.   Vicinity map.

         b.   Site plan illustration.

         c.   Existing lane configurations and traffic control for study roadways and intersections.

         d.   Existing traffic volumes for study roadways and intersections.

         e.   Trip distribution percentages.

         f.   Trip assignment(s).

         g.   Projected traffic volumes for study roadways and intersections for all study years, without the proposed development.

         h.   Projected traffic volumes for study roadways and intersections for all study years, with the proposed development.

         i.   Recommended/proposed lane configurations and traffic control for study roadways and intersections.

      7.   Master Planned Community With Overall TIA: If there is master planned community with an overall TIA, another TIA will not be required for each phase, unless some portion of the original TIA is no longer valid due to changes in the standards or community. Nevertheless, the city may request a category 1 study for each phase if it has reason to think the target levels of service at driveways and intersections may be compromised.

   D.   Traffic Control: Traffic control devices shall be provided for new development pursuant to standards adopted by the department of public works. E. Sidewalk Design Standards:

      1.   When Required: Sidewalks, or pedestrian crosswalks, may be required, upon a determination by the zoning official or director of public works, to provide circulation or access to schools, playgrounds, shopping centers, community facilities or other locations with significant pedestrian traffic.

      2.   Standards: Sidewalks, where required pursuant to these regulations, shall be designed in compliance with the adopted standards of the city, which standards shall be increased as required to comply with ADA requirements.

   F.   Access Standards:

      1.   Applicability: Proper access design and location are essential to the maintenance of safe, efficient traffic flow. Access standards shall apply to all development to prevent the proliferation of poorly spaced driveways that can reduce the safety and carrying capacity of community streets.

      2.   Required: Every lot shall abut a street with adequate width for private driveways for the purpose of ingress and egress to the lot. Except as expressly provided by the UDO, no building permit shall be issued for any lot or parcel which does not abut a public street or an approved private street.

      3.   Standards And Specifications: All lots shall be provided with access by means of streets which have been constructed in conformance with the standards and specifications of these regulations, and dedicated in accordance with these regulations. However, the city council may consider for approval lots, parcels or tracts that are provided with the means of access by private streets so long as the private streets are a minimum of forty one feet (41') in width and are constructed in conformance with standards and specifications prescribed for public roads in these regulations, and an association or entity is responsible for maintenance of these streets.

      4.   Driveways; Width: Driveways providing access to single-family residential dwelling units, except in rural areas, shall be a minimum of sixteen feet (16') in width and shall be paved with either asphalt or concrete. All multi-family development shall be accessed by at least one driveway, twenty-four feet (24') in width, that is paved with either asphalt or concrete.

      5.   Turning Lanes: Turning lanes may be required along arterial streets. When channelized right turn lanes are used, the zoning official or director of public works shall determine the minimum spacing between the driveways and intersections based on AASHTO standards.

      6.   Access From Specific Streets: No single-family or two-family lot shall be created which is accessed from an arterial street or a major collector street.

      7.   Variations: These standards are not intended to preclude access to existing lots. Where the city's standards would preclude access to a lot, the BZA may vary the access standards, subject to the following guidelines:

         a.   Corner lots adjacent to streets of unequal classification shall access the street designed to carry a lower traffic volume;

         b.   Corner lots adjacent to streets of equal classification shall access the street with the greatest frontage.

      8.   Bond: A performance bond of an amount determined by completion of the city's bond estimate form shall be posted prior to construction of a driveway.

      9.   Insurance: The director of public works shall establish minimum contractor insurance standards.

      10.   Site Distance Requirements: Driveways and subdivision entrances shall meet sight distance requirements set by the director of public works. The director public works shall give special consideration to existing parcels and land platted before adoption of the UDO; provided, that the owner must sign a waiver prior to the director public works's grant of exception.

      11.   Construction Details: Details of construction shall be designed and constructed as specified by the director public works. (Ord. 172, 9-24-1996, eff. 10-31-1996; amd. Ord. 489, 1-27-2015; Ord. B24-004, 9-24-2024)