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HomeMy WebLinkAboutLEMAY AVENUE ESTATES - FDP - 37-04B - CORRESPONDENCE - (3)Topic: Grading Number: 110 Created: 11 /23/2005 [ 11 /23/051 If there are any areas where drainage is trapped from the backyard of lots in Stanton Creek, please allow such areas to drain across these lots. Please add a note to the grading plan stating that a detailed grading plan in accordance with the detail shown on sheet D8 will be submitted by the builder and approved by the City prior to the issuance of any building permits on any of the lots in this development. Please see red -lines for additional minor comments. Topic: Plat Number: 109 Created: 11 /23/2005 [ 11 /23/051 Please adjust the plat note to state that the lots with restrictions will not be allowed to inhibit the passage of drainage across these lots to the downstream lots. See red -lined plans for corrected note. Tract G is to be deeded to the City of Fort Collins and this should be done after the project is approved. We need to include a paragraph in the development agreement clarifying when the title transfer to this tract will be done. Topic: Storm Line A Number: 107 Created: 11 /21 /2005 [ 11 /21 /051 Why is storm Line A designed with an extra manhole and a right angle turn. It might be more efficient to shorten that line. Topic: Utility Plans Number: 111 Created: 11 /23/2005 [ 11 /23/051 Please call out all the storm drainage lines and appurtenances' types and sizes on the utility plans. Be sure and return all red -lined plans if/when you re -submit. If you have any questions regarding these issues or any other issues related to this project, please feel free to call me at 221-6341. YRTruleve , City Planner cc: Marc Virata Project File #37-04B Page 3 treating and fly -ash treatment alone may not be adequate to avoid future failures of the pavement in this subdivision. At the least we will need to conduct some additional testing to make sure the fly -ash treatment will adequately reduce the swell to below 2% in the areas were the tests show the highest swells. This could be accomplished by sampling the soils in highest swell areas treating the soil with different partitions of fly -ash and rerunning the swell consolidation tests. After looking at the streets in the adjacent development to the south of this subdivision it would appear that streets that were treated with fly -ash and sub -drains were added seem to be holding up better then the streets with fly -ash treatment only. I believe we should consider using fly -ash and sub -drains to mitigate the high swell of the soils in this development. Number: 106 Created: 11 / 18/2005 [ 11 / 18/051 The amount of vertical information shown for Lemay Avenue was apparently limited to the two spot elevations on the intersection detail, which at least matches the elevations shown on the Lemay Avenue construction plan set. I've checked with the Lemay Avenue design engineer and he is fine with providing the plan and proffie sheets adjacent to the site for inclusion as reference in the plan set. I believe this information should be included to at least provide a reference point and show that in theory the grades will match between the road plans and this design. Department: Stormwater-Water-Wastewater Issue Contact: Basil Hamdan Topic: Erosion Control Number: 108 Created: 11 /21 /2005 [11/21/051 November 21, 2005 The "Grading and Erosion Control Notes" on plan sheet CS2 are incorrect, please delete. Place the current, correct notes on the erosion control plan sheet. Add a note to the standard notes that all disturbed areas are to be seeded and mulched. Will the grades and "swales" along the northwest and north sides of the project protect offsite areas, particularly the housing development to the north? Please provide the required calculations. Page 2 41 A Z[Vft d) 01 STAFF PROJECT REVIEW City of Fort Collins Everitt Companies Date: 11 /30/2005 c/o Stan Everitt 3030 South College Avenue Fort Collins, CO. 80525 Staff has reviewed your submittal for LEMAY AVENUE ESTATES - FINAL PLANS, and we offer the following comments: ISSUES: Department: Engineering Issue Contact: Marc Vista Topic: Construction Plan Number: 91 Created: 7/29/2005 [ 11 / 18/051 The cul-de-sac grading detail appears to specify high points at the center of the cul-de-sac which is not consistent with LCUASS detail 7- 19. In addition there are cross slopes in excess of 3% being shown, also not in conformance with 7-19. [7/29/051 Please provide detail information on the cul-de-sacs (spot elevations, flow arrows, high points, grades, etc.) per LCUASS detail 7-19. Topic: General Number: 20 Created: l l /5/2004 [ 11 / 18/051 Letter were provided from Xcel Energy and City Electric posing no objection however these are also required from Comcast and gwest as they could theoretically use this easement. 17/26/051 Carried over for reference. 12/ 15/05) Carried over for reference, as it appears the utilities have not been contacted thus far. It is suggested that this issue be verified earlier than prior to construction as it may result (worse case scenario) in having to modify plans that were previously approved. [ 11 /5/04) The utility companies will all need to allow the fencing, columns, and planters which are proposed within the utility easement along Lemay Avenue. Number: 105 Created: 11 / 18/2005 [I l/ 18/051 The following comment has been raised by our Pavement Management Engineer: Comments on EEC's Subsurface Exploration Report Dated 9-15-05. Given the high in -situ moisture content in the samples used for the swell consolidation tests and as stated in the report the potential for the mixing of claystone bedrock material during the utility installation I believe the swells in the sub -grade soils that we place the pavement on will be higher then indicated the swell tests in this report. I have concerns that moisture Page 1