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HomeMy WebLinkAboutPublic Agencyr. A PUBLIC AGENCY DATE SUBMITTED BY ITEM I/cl pelil-, r Memorandum To: Jarom Wagoner, Senior Planner From: TJ Frans, Project Manager Re: SUP-19-19 (Sunset Landing) Date: September 9, 2019 The Engineering Department provides the following comments on a request by Brian Rallens and Mason & Associates for a Special -Use permit to construct a multi -family development within the H- D (Hospital District) zoning district. The subject property is located at the southeast corner of Logan Street and Sunset Avenue (Parcel Vs R0586100000 & R0585600000) in Caldwell, Idaho, Development Plans 1. Development Plans— Prior to commencing construction, plans must be prepared by the developer's engineer and approved by the City Engineering Department which shall include the following items: a. Street section and alignment (including curb and gutter); b. Sidewalk (sidewalk width based on street classification); c. Sanitary sewer (per City and DEQ requirements); d. Potable water (per City and DEQ requirements); e. Stormwater facilities (per City requirements/storm water manual); f. Street lighting (per City standards); g. Street signage (per City and MUTCD requirements); h. Vertical Datum based on NAVD 88 Datum. General 1. Appropriate easements for emergency access, transmission lines and/or other utilities shall be provided to the City. 2. All utilities on and within the boundaries of the subdivision shall be located and/or relocated underground. 3. All street, sewer, water, fire protection, and street light facilities must be dedicated to the City. Some conveyance facilities for stormwater drainage may be eligible for dedication to the City. Page 1 of 4 r 4. Construction of facilities to be dedicated and/or within public right-of-way shall be performed by an appropriately licensed public works contractor and shall be inspected by and constructed to City of Caldwell specifications. 5. Prior to commencement of construction in any dedicated right-of-way, or construction of any improvement intended for dedication to the City or connected to a City facility, the City Engineering staff is to be notified. This preferably will take place in a pre -construction conference scheduled by the engineer of record in which all appropriate personnel and utilities are present. Appropriate City personnel are to be notified in advance of all testing (including compaction, pressure and coliform, etc.) and given opportunity to be present during conduct of the testing. The engineer of record or his designated representative is to witness all tests (not covered by City inspectors) and a log of inspection visits and testing results is to be kept by the engineer of record or his representative. 6. The developer is to employ a responsible design professional, preferably the engineer of record, to oversee and inspect construction, to perform and/or observe all requisite testing of completed facilities, and to certify that improvements have been constructed according to approved plans and in compliance with applicable City, State, and Federal standards. 7. The engineer of record shall be held responsible to ensure that subdivision improvements are in substantial compliance with said engineer's design. Following the construction of the subdivision improvements, the developers engineer shall provide the City of Caldwell Engineering Department with electronic (.dwg) format record drawings spatially referenced to the Idaho State Plane Coordinate System -West Zone, North America Datum (NAD) 83. Vertical control shall be referenced to the North America Datum (NAVD) 88 for future reference and to establish that the engineer of record has caused construction to occur in substantial compliance with the design of said engineer of record. 8. Any note, item or drawing element on the construction drawings, engineering drawings and/or design drawings related to the property inconsistent with City Codes, Policies and/or Ordinances shall not be construed as approved unless specifically addressed and granted by City Council. Rights -of -Way 1. Kimball Avenue is classified as a Minor Arterial. The applicant shall dedicate as public right-of- way a minimum forty (40) foot half width right-of-way (from centerline) along the entire Kimball Avenue alignment (per City Standard R-810 B). 2. W. Logan Street is classified as a Collector. The applicant shall dedicate as public right-of-way a minimum thirty-five (35) foot half width right-of-way (from centerline) along the entire Logan Street alignment (per City Standard R-810 C). 3. Sunset Avenue is classified as a local street. The applicant shall dedicate as public right-of-way a minimum twenty-six and one half (26.5) foot half width right-of-way (from centerline) along the entire Sunset Avenue alignment (per City Standard R-810 E). Page 2 of 4 Pr � r Street 1. Full frontage half street improvements shall be completed to all roadways adjacent to the proposed project (Kimball, Logan and Sunset) in accordance with all City of Caldwell standards and specifications. Improvements shall include (but are not limited to) curb, gutter, sidewalk, asphalt, streetlights, joint trench, communication conduit, storm drainage facilities, etc. 2. Access to Kimball Avenue is prohibited. Water 1. All on site water mains will need to be looped into existing mains for fire flow and water quality purposes. Internal main sizing and construction plan approval, will be dependent upon the availability of fire flow. 2. Each buildable lot or structure shall be supplied with potable water. If buildings are constructed to include individual units that could feasibly or will be sold separately, each unit shall be serviced separately. 3. The location of water service, including sizing of mains, providing of easements, frontage construction, and offsite construction are to be decided during review of improvement plans. Sanitary Sewer It shall be the responsibility of the applicant's engineer to verify that connection to existing sewer mainlines will not exceed the functional capacity of said mainlines. Provision for connectivity by future developments shall be met in accordance with current City standards. 2. The location of sewer service, including sizing of mains, providing of easements, frontage construction, and offsite construction are to be decided during review of improvement plans. 3. Each buildable lot or structure shall be provided with individual sewer service. If buildings are constructed to include individual units that could feasibly or will be sold separately, each unit shall be serviced separately. 4. Any easements for sewer lines not in the right-of-way should be at a width sufficient to construct same and not less than 20 feet in width. Easements for adjacent sewer and water lines not in the right-of-way shall be at a width sufficient to construct the same and shall be no less than 30 feet in width. 5. All weather surfaces may be required adjacent to mainlines that fall outside the public right-of- way. All weather surfaces shall be constructed sufficiently to support heavy equipment necessary to construct and maintain sewer under all seasonal weather conditions. Page 3 of 4 r Irrination 1. Existing easements and/or right-of-ways for any irrigation facility shall be determined and clearly indicated on the construction plans. Construction across or re-routing of these facilities is subject to approval by the Pioneer Irrigation District and at their discretion, their assigns. Applicant shall provide written approval of the proposed construction drawings from Pioneer Irrigation prior to City approval of construction drawings. The Developer shall maintain any existing upstream drainage rights and downstream irrigation rights across the property. During the design phase of this project, the developer or his engineer is to contact the appropriate irrigation district to help ascertain these rights. Appropriate facilities shall be provided by the developer to convey irrigation and drainage water across the property to take care of these offsite needs. There is to be no discharge of gravity irrigation return water into the subdivision storm water system. 2. The development shall utilize existing non -potable water for all irrigation and pressure irrigation requirements. Said development shall provide a pressurized irrigation system to serve the project. The design of this pressure irrigation system is to be reviewed and approved by the Caldwell Municipal Irrigation District prior to construction plan approval. 3. Supplying irrigation district shall approve the location of the delivery point. Storm Drain 1. As noted previously, provision is to be made for the disposal of stormwater drainage in accordance with the City Stormwater Management Manual and any updates adopted subsequent to this application. It is to be noted that retention designs will be denied in most instances. A copy of this policy is available upon request. The engineer of record is to provide calculations, which indicate that the assumptions in his stormwater drainage plan comply with the requirements of the stormwater manual. In this case, if a storm water system is existing, the burden of proof is on the developer to verify the capacity is sufficient for the proposed development. 2. The applicant shall identify and retain all historical drainage discharge points from the property for the purpose of draining on site storm water detention facilities. 3. The final plat drawing should indicate that storm water detention basins are to be placed in common lots in accordance with the referenced Stormwater policy. A note should be placed on the final plat indicating that all areas designated as common areas are to be operated and maintained by the business owners association. Page 4 of 4 pprk