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Page: 2 <br /> <br /> <br /> <br />section City standard street should be installed as part of this subdivision, at 28‐ft wide within a <br />60‐ft right‐of‐way. A City standard urban cross section allows for the installation of a sidewalk, as <br />required along all new residential streets, the installation of streetlights at intersections and the <br />end of cul‐de‐sacs, placement of hydrants 5‐feet back of curb, placement of boulevard trees 5‐feet <br />back of curb, and ADA complaint pedestrian ramps, when applicable. All elements of the <br />streetscape can be installed per a standardized cross section for a predictable and consistent <br />streetscape for ongoing maintenance. In addition, the A City standard urban cross section <br />simplifies asset management and when planning for resurfacing, patching, utility locates and <br />capital improvement planning. <br /> Rural section roadways require increased maintenance efforts while exposing the pavement <br />section to drainage vulnerabilities and greater potential for freeze‐thaw damage. <br /> Overland drainage systems and culverts require regular grading, mowing, and erosion control <br />as well as greater potential for homeowner conflict over ditch and vegetation maintenance <br />expectations, and maintenance of private driveway culverts. <br /> An urban section street provides a more durable, contained drainage system that requires <br />lower and more efficient maintenance efforts. Standardized curb and gutter provides a <br />stabilizing edge control to prolong pavement service life. <br />7. Sidewalks/Trails. City design standards require a six (6) foot sidewalk along all residential streets. <br />The Sketch Plan does not show sidewalks or trails. <br />8. Driveways. All driveways must be installed in accordance with all City ordinances, including <br />minimum distance from intersections, driveway angles installed at 90‐degrees as they cross public <br />right‐of‐way, and distance between driveways. <br />9. Streetlights. Streetlights were not shown on the Sketch Plan but should be required at all <br />intersections and at the end of the cul‐de‐sac. The City requires the fixtures and poles to be Xcel <br />Energy supplied and installed, and owned and maintained by Xcel Energy. <br />10. Dedicated drainage and utility easements, minimum 10‐feet wide, are required along all public <br />roadway frontage as shown on the Sketch Plan. These easements must remain free from all <br />encroachments other than those approved by the City Engineer. <br />11. Off‐site temporary construction easements must be obtained and provided to make the required <br />street connection to Imperial Avenue and associated grading tie‐ins. Off‐site temporary <br />construction easements may also be required for stormwater management plan implementation <br />including potential stormwater discharge locations and grading tie‐ins. The temporary construction <br />easements must be obtained using the City standard form of easement agreement with the City <br />named an additional party to the easement. <br /> <br />STORMWATER MANAGEMENT <br />1. The proposed development is subject to a Stormwater Management Plan (SWMP) meeting State, <br />Valley Branch Watershed District (VBWD) and City rules. A VBWD permit is required. Storm water <br />facilities proposed as part of the development to meet State and watershed permitting <br />requirements must be constructed in accordance with the City Engineering Design Standards <br />Manual dated January 2022. The proposed Sketch Plan requires significant revisions and <br />resubmittal for further City review to create a complaint stormwater management plan. <br />2. City engineering design standards require all public owed and maintained stormwater BMPs to be <br />placed in Outlots dedicated to the City. The Sketch Plan submittal shows two alternatives, one <br />showing BMPs in Outlots as required and one showing stormwater BMPs on private lots. If the <br />application moves forward, it is strongly recommended that Outlots be required to maintain <br />consistent, professional maintenance, provide clear legal responsibility and reduce homeowner <br />conflict. Cities must maintain stormwater systems under MS4 permit obligations and owning the <br />land gives the City full access and control, with no ambiguity about sediment buildup, pipe outfalls