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Home My WebLink AboutLINDEN PARK (KEATING PROP.) - PDP - 62-98B - CORRESPONDENCE - REVISIONS (3)NATURAL RESOURCES DEPARTMENT JUKE 16, 1999 COMMENTS 1. Acknowledged, note added to sheet #16 2. Acknowledged, note added to sheet #16 3. Acknowledged, note added to sheet # 16 4. Acknowledged S. Acknowledged 6. Acknowledged 7. Acknowledged 8. Acknowledged 9. Acknowledged 10. Acknowledged 11. Acknowledged 12. Acknowledged October 13, 1999 ♦ The easement for the off -site sanitary sewer has been submitted to the City of Fort Collins. ♦ The limits of development have been added to the off -site sanitary sewer sheet #16-18. ♦ The orange construction fencing is called out on sheets #16-18. ♦ Acknowledged. ♦ Acknowledged. ♦ Acknowledged. Sincerely, Kevin Ash TST, INC. CONSULTING ENGINEERS 25. Acknowledged. The length of downstream riprap per Figure 5-7 in the Urban Drainage & Flood Control District specifies that if one enters Figure 5-7 and gets you are to use Type L riprap for a distance of 3D downstream. 26. We have requested a variance in the drainage report to use 3:1 slopes for Ponds B & C and for the two depressions directly north of Pond A. 27. See SWMM mode and report 28. Acknowledged SWMM COMMENTS: 1. The eastern ponds have been modified and expanded so that there is a common water surface between them. The previous report had designed them with a differential maximum water surface. An analysis has been performed to verify the connectivity between ponds. 2. Please see the revised analysis. The sump northwest of the site discharges to the west to the Southridge Greens golf course via a culvert under the railroad. 3. Please see revised text and analysis. 4. Please see revised analysis. 5. Please see revised analysis and plans. 6. Please see revised analysis and plans. 7. Please see revised analysis. 2/3 open area is a typical value for a grated inlet. EROSION/SEDIMENT CONTROL COMMENTS: 1. Acknowledged 2. The callout is "See Sheet 35" which is correct. 3. Acknowledged 4. Temporary gravel inlet filters are to be installed in front of the outlet structures. This will serve as a sediment trap where it can then be periodically removed. After construction and reseeding, the temporary gravel inlet filters can be removed. 5. Acknowledged. SOUTH FORT COLLINS SANITATION DISTRICT ♦ On the cover sheet, general note # 1 was corrected and notes #22-23 were added to indicate the Districts specifications and requirements. ♦ Acknowledged. The waterline is looped and all plugged ends will have temporary blowoffs. ♦ The waterlines will be buried within the specified range of 5 to 6 feet except where called out on the utility plan. ♦ Acknowledged. ♦ Acknowledged. ♦ Acknowledged. ♦ Acknowledged. ♦ Air release valves will not be used. All high points will be forced at fire hydrants and all plugged ends will have temporary blowoffs. STORMWATER UTILITY 1. Pond A has a natural spillway at the south end of the pond. The pond will overtop at elevation 4936.00. The spill has less than one foot of fall where it meets Fossil Creek Circle. It will then flow south down Red Willow Drive. This overflow will not damage any buildings. Pond B/C has a twenty -foot wide spillway that diverts the flow into Timberline Road. This will be the best spot to spill flow with the least amount of erosion impact. 2. These are not ponds. They serve as catch basins and transfer flows under the road to Pond A. Per Engineering Dept., area is kept as R.O.W. for future north development. 3. The developed flows to the roadside ditch are less than historic rates. Where the curb and gutter begins and ends, there will be transition ditches graded within the R.O.W. to redirect flows. 4. There is no irrigation company. The outlets have been moved within the property even though they were within the implied historic maintenance easement originally. The outlets will remain as designed and will function adequately. 5. Acknowledged. Refer to Line ST-14 in the drainage report. 6. No. Home Owner's Association will maintain and pump each year. 7. We have changed our release rate too historic. There is no need to analyze the Paragon ditch since we are releasing at an historic rate. 8. Sheet 5 & 6 of the plan set includes all of the drainage and erosion control. 9. Acknowledged 10. Acknowledged 11. Acknowledged 12. Acknowledged 13. Acknowledged 14. Acknowledged 15. Acknowledged. Others are engineering timberline Road. 16. See Landscape Plan 17. Acknowledged 18. Acknowledged 19. Acknowledged 20. Acknowledged 21. Acknowledged 22. Removing this exhibit from report. We are oversizing Line ST-1 for an excess capacity of 40 cfs. This excess capacity is located at the property line between Hahn and Robinson. This 40 cfs is excess capacity in the storm line for when/if Hahn and/or Robinson develop their properties. It is a set amount and is by no means the exact amount of runoff that they need. These two property owners will be able to place 40 cfs into Line ST-1. 23. Acknowledged 24. Acknowledged TIMBERLINE IMPROVEMENTS ♦ Design by others. STREET, EROSION CONTROL & SIPHON DETAILS ♦ All redline revisions were made. Access ramp detail should be applicable to revised drive -over curb and gutter layout. PLAT COMMENTS ♦ All Mapping/Drafting comments were addressed. ♦ Consistency between all sheets in the plan set should be complete. ♦ Language for plat was put in. ♦ There is no irrigation ditch company that has jurisdiction over this lateral. ♦ Sight distance easement is now shown. ♦ Fossil Creek Parkway is the new name. ♦ R.O.W. changed to designate a Connector Local. ♦ Note for Homeowners Association responsibility for expanded R.O.W. ♦ Tract F width not commented by Transportation Planning. SOILS REPORT COMMENTS ♦ Subdrain system design to be determined. SITE AND LANDSCAPE PLAN 1. A note has been added on the site and landscape plans (Sheets 1 and 3 of 5). 2. Sight distance easements are shown on the site and landscape plans. 3. All crosspans and enhanced crosswalks are shown on the site plan (Sheet 1 of 5). 4. Street connections have been provided to the north. A revised alternative compliance letter has been submitted for the Prairie Hill Drive connection (the western most connection). 5. All access ramps are shown on the site plan. 6. A 1.5-foot separation between the fence and pedestrian paths is shown on the site and landscape plans. 7. Acknowledged. TRAFFIC OPERATIONS ♦ Signing and striping to be implemented with coordination of Timberline design. ♦ Entrance median was not allowed with Fort Collins Engineering Dept. ♦ Two-step left turn lane to be developed with Timberline Improvements. POUDRE FIRE AUTHORITY ♦ Address numerals comment — acknowledged. ♦ Water supply — acknowledged. ♦ Street names — changed. OFF -SITE SANITARY SEWER PLAN & PROFILE ♦ Easements submitted by developer. OFF -SITE STORM SEWER PLAN & PROFILE ♦ Easements submitted by developer. ♦ Storm sewer changed to RCP. LOCAL STREETS ♦ Typical cross section note called out. ♦ Spot elevations provided. ♦ Crosspans and curb returns shown in profile. ♦ Drive -over curb and gutter used instead of vertical. ♦ Note added for horizontal curves that fail to meet city standards. ♦ Designs were shown for stub streets — 500 feet off -site. ♦ Curve data shown. WILLOW PARK WEST ♦ Falcon Ridge Drive. ♦ Horizontal curve — 20 feet. ♦ Vertical curve put in. ♦ 12-foot crosspan used. MEADOW PARKWAY EAST ♦ Prairie Hill Drive. ♦ Alignment redone and curve removed. ♦ All paths are shown consistently on all sheets. LINDEN PARKWAY EAST ♦ Fossil Creek Parkway. ♦ Street designed as a connector. ♦ Through street - crowns taken out of profile/curb returns shown. ♦ Stationing provided at intersections. ♦ Transition equation provided in redline comments used. 48' — 36' pavement. LINDEN PARK CIRCLE ♦ Fossil Creek Circle. ♦ Minimum k-values were met. ♦ Sight distance easement put in. PRAIRIE HILL DRIVE ♦ Through street — crowns removed/curb returns shown. ♦ Minimum k-values used. F January 11, 2000 Mr. Ron Fuchs City of Fort Collins Current Planning P.O. Box 580 Fort Collins, CO 80522-0580 RE: Linden Park P.D.P. Project No. 0930-001 Dear Mr. Fuchs: Enclosed are responses to the City of Fort Collins comment sheets from the review of the Linden Park P.D.P. submittal on October 22, 1999. ENGINEERING ♦ Signature block changed for Traffic Engineer — all sheets. ♦ There is no irrigation ditch company that has jurisdiction over the laterals that cross this site. ♦ Signing and Striping Plan is not required per conversation with Mark McCallum. However, as Timberline Road issue is resolved, signing and striping may become necessary. COVER SHEET ♦ Minor revisions to General Comments were done. ♦ Plat was numbered separately. GRADING SHEET ♦ Developer submitted easements for off -site sanitary sewer and storm. ♦ Grading to be done on -site except where otherwise noted. ♦ Acknowledged. OVERALL UTILITY PLAN ♦ All crosspans and crosswalks are labeled and dimensioned. ♦ Future street connections are shown and designed. ♦ Emergency road access - conversations with Ron Gonzales, PFA, have been made. There are no set details, so the design will need to be approved with Ron before construction. ♦ Access ramps are now designed in accordance with detail D-12.5. FILE CUy TST, INC. Consulting Engineers 748 Whalers Way • Building D • Fort Collins, CO 80525 (970) 226-0557 • Fax (970) 226-0204 To: Ron Fuchs City of Fort Collins Current Plannina Project No Project: Date: Re: We transmit X❑ Herewith 0 Under Separate Cover 0 Shop Drawings X❑ Copy of Letter 0 Specifications X❑ Prints ❑ Change Order ❑ Survey TRANSMITTAL 0930-001 Linden Park P.D.P. 01/11/2000 PDP Resubmittal ❑ VIA ❑ Other ❑ Field Order NO. COPIES DRAWINGS NO. DESCRIPTION 7 41 Utility Plans 1 Drainage Re ort/SWMM Report 9 3 Subdivision Plat 1 6 Response Letter 1 City Redlines Remarks Ron, The appropriate number of copies from the routing sheet have been submitted for review of the Linden Park PDP. Let me know if you have any problems or questions. IF ENCLOSURES RECEIVED ARE NOT AS LISTED ABOVE, KINDLY NOTIFY AT ONCE Copies To: By: Kevin Ash