The URL can be used to link to this page

Home My WebLink AboutTRAILHEAD ANNEXATION & ZONING - 43-02 - SUBMITTAL DOCUMENTS - ROUND 2 - DRAINAGE REPORTTHENCE S00002'44"W, ON SAID EAST LINE, A DISTANCE OF 1105.36 FEET, TO THE NORTHERLY RIGHT-OF-WAY OF EAST VINE DRIVE; THENCE N88057'05"W, ON SAID NORTHERLY RIGHT-OF-WAY, A DISTANCE OF 2640.83 FEET, TO THE POINT OF BEGINNING. CONTAINING AN OVERALL CALCULATED AREA OF 91.285 ACRES (3,976,373 SQUARE FEET). I, DAVID P. ROBERTS, A REGISTERED PROFESSIONAL LAND SURVEYOR IN THE STATE OF COLORADO, DO HEREBY STATE THAT THE ABOVE LEGAL DESCRIPTION AND ATTACHED EXHIBIT WERE PREPARED UNDER MY RESPONSIBLE CHARGE AND ON THE BASIS OF MY KNOWLEDGE, INFORMATION, AND BELIEF, ARE CORRECT. DAVID P. ROBERTS, PROFESSIONAL LAND SURVEYOR COLORADO PLS NO. 32825 FOR AND ON THE BEHALF OF JR ENGINEERING LLC. THIS LEGAL DESCRIPTION DOES NOT CONSTITUTE A TITLE SEARCH BY JR ENGINEERING TO DETERMINE OWNERSHIP OF THIS TRACT OR VERIFY EASEMENTS OF RECORD. ✓R ENGINEERING AND THE SURVEYOR OF RECORD ASSUMES NO RESPONSIBILITY FOR OWNERSHIP RIGHTS OR EXISTING EASEMENT RIGHTS AND RECOMMENDS CONSULTATION WITH AN ATTORNEY. GA2001 \0 1 -060 Hartshorn Property\Correspondence\LEGAL2.doc Page 2 of 2 LEGAL DESCRIPTION HARTSHORN PROPERTY ANNEXATION A PORTION OF THE SOUTHWEST ONE -QUARTER OF SECTION 4, TOWNSHIP 7 NORTH, RANGE 68 WEST OF THE 6TH PM LYING SOUTHEASTERLY OF THE BURLINGTON NORTHERN RAILROAD RIGHT OF WAY TOGETHER WITH A PORTION OF THE SOUTHEAST ONE QUARTER OF SAID SECTION 4, LYING WESTERLY OF WATERGLEN P.U.D., AS RECORDED UNDER RECEPTION NUMBER 98109875, LARIMER COUNTY RECORDS; ALL WITHIN THE COUNTY OF LARIMER, STATE OF COLORADO, MORE PARTICULARLY DESCRIBED AS FOLLOWS: BASIS OF BEARING: THE EAST LINE OF THE SOUTHWEST ONE -QUARTER OF SECTION 4, BEING MONUMENTED AT THE SOUTH END BY A 2" ALUMINUM CAP STAMPED "LS 25372, 1996" AND AT THE NORTH END BY A 3-1/4" ALUMINUM CAP STAMPED "LS 17502", IS ASSUMED TO BEAR S00002'44W", WITH A DISTANCE OF 2600.57 FEET BETWEEN SAID MONUMENTS. COMMENCING AT THE SOUTHWEST CORNER OF SAID SECTION 4, THENCE N00019'44"E, ON THE WEST LINE OF THE SOUTHWEST ONE -QUARTER OF SAID SECTION 4, A DISTANCE OF 30.00 FEET TO THE INTERSECTION OF SAID WEST LINE AND THE NORTH RIGHT-OF-WAY OF EAST VINE DRIVE AND THE POINT OF BEGINNING; THENCE N00019'44"E, CONTINUING ON SAID WEST LINE, A DISTANCE OF 737.13 FEET, TO THE INTERSECTION OF SAID WEST LINE AND THE SOUTHERLY RIGHT-OF-WAY OF THE BURLINGTON NORTHERN RAILROAD; THENCE N58002'55"E, ON SAID SOUTHERLY RIGHT-OF-WAY, A DISTANCE OF 563.33 FEET; THENCE S59012'07"E, A DISTANCE OF 96.60 FEET, TO A POINT OF CURVATURE; THENCE ON THE ARC Of A CURVE TO THE LEFT, SAID CURVE HAVING A DELTA -OF 89007' 16"AND A RADIUS OF 275.00 FEET, A DISTANCE OF 427.75 FEET, THE CHORD OF SAID CURVE BEARING N76014' 15"E, WITH A LENGTH OF 385.91 FEET, TO A POINT OF TANGENCY; THENCE N31040'37"E A DISTANCE OF 57.11 FEET, TO A POINT OF CURVATURE; THENCE ON THE ARC OF A CURVE TO THE RIGHT, SAID CURVE HAVING A DELTA OF 26019'12"AND A RADIUS OF 307.94 FEET, A DISTANCE OF 141.46 FEET, THE.CHORD OF SAID CURVE BEARING N44050' 13"E, WITH A LENGTH OF 140.22 FEET, TO A POINT OF TANGENCY; THENCE N57059'49"E, A DISTANCE OF 1747.66 FEET; THENCE N34052'32"E, A DISTANCE OF 196.69 TO THE WESTERLY BOUNDARY OF SAID WATERGLEN P.U.D.; THENCE ON SAID WESTERLY BOUNDARY, THE FOLLOWING EIGHT (8) COURSES: 1) S 11 ° 12' 11 "E, A DISTANCE OF 94.94 FEET; 2) S16°18'04"E, A DISTANCE OF 71.95 FEET; 3) S21°32'29"E, A DISTANCE OF 78.30 FEET; 4) S 1605 1'24"E, A DISTANCE OF 499.15 FEET; 5) S05°55'24"E, A DISTANCE OF 157.65 FEET; 6) S 13°48' 13"W, A DISTANCE OF 89.26 FEET; 7) S31°17'28"W, A DISTANCE OF 161.04 FEET; 8) S41053'34"W, A DISTANCE OF 218.05 FEET, ONE -QUARTER OF SAID SECTION 4; TO THE EAST LINE OF THE SOUTHWEST G:\2001\01-060 Hartshorn Property\Correspondence\LEGAL2.doc Page 1 of 2 TABLE OF CONTENTS PAGE TRANSMITTAL LETTER.................................................................................. i TABLE OF CONTENTS.............................................................................................................. ii 1. INTRODUCTION..................................................................................................................1 1.1 Project Description......................................................................................................... 1 1.2 Existing Site Characteristics........................................................................................... 1 1.3 Purpose and Scope of Report ......................................................................................... 1 1.4 Design Criteria................................................................................................................ 2 1.5 Master Drainage Basin................................................................................................... 2 2. HISTORIC (EXISTING) DRAINAGE................................................................................ 2 3. LOCAL DEVELOPED DRAINAGE DESIGN (To be submitted with First Final) ....... 3 3.1 Method............................................................................................................................3 3.2 General Flow Routing.................................................................................................... 4 3.3 Proposed Drainage Plan................................................................................................. 4 3.4 Hydrologic Analysis of the Proposed Drainage Conditions ........................................... 8 4. HYDRAULIC ANALYSIS (To be submitted with First Final) ......................................... 9 4.1 Allowable Street Capacity.............................................................................................. 9 4.2 Inlet Sizing...................................................................................................................... 9 4.3 Storm Sewer System....................................................................................................... 9 4.4 Pond Description....................................................................................:..................... 10 5. MODSWMM AND EXTRAN (To be submitted with First Final)..................................11 6. EROSION CONTROL (To be submitted with First Final).............................................13 6.1 Erosion and Sediment Control Measures..................................................................... 13 6.2 Dust Abatement............................................................................................................ 13 6.3 Tracking Mud on City Streets...................................................................................... 13 6.4 Maintenance................................................................................................................. 14 6.5 Permanent Stabilization................................................................................................ 14 7. REFERENCES.....................................................................................................................15 Appendix A: Maps and Figures Appendix B: Hydrologic Calculations Appendix C: Street Capacity Calculations (To be submitted with First Final) Appendix D: Inlet Calculations (To be submitted with First Final) Appendix E: Storm Pipe and Swale Calculations (To be submitted with First Final) Appendix F: Pond Sizing Calculations Including ModSwmm (To be submitted with First Final) Appendix G: Erosion Control (To be submitted with First Final) Appendix H: Reference Reports DRAINAGE AND EROSION CONTROL REPORT Trail Head Property Prepared for: Hartshorn Properties, LLC Mr. Ken Crumb, Manager P.O. Box 337600 Greeley, Colorado 80633 (970)304-1392 Prepared by: JR Engineering 2620 E. Prospect Road, Suite 190 Fort Collins, Colorado 80525 (970)491-9888 December 23, 2003 c�i'�i �'�` � eft°• `�o •o o�: Y 37953 Ts 0•��'••........••'••� Timothy J. Halopoff, P.E. Exp. 10/31/2005 Job Number 39145.11 J•R ENGINEERING A Westrian Company December 23, 2003 Mr. Basil Hamdan City of Fort Collins Stormwater Utility 700 Wood Street Fort Collins, CO 80521 RE: Trail Head Drainage and Erosion Control Report Dear Mr. Hamdan: We are pleased to submit to you for your review and approval this preliminary Drainage and Erosion Control Report for Trail Head Property. All computations within this report have been completed in compliance with the City of Fort Collins Storm Drainage Design Criteria. Since this submittal has been deemed a preliminary submittal at 50% completion, JR Engineering has provided existing condition rational hydrology calculations, preliminary developed condition hydrology calculations, preliminary detention facility sizing calculations and anticipated plan view storm drain sizing on the overall utility layout. Once the general drainage patterns and storm drain locations have been preliminarily reviewed and accepted, we plan to fully analyze all hydrology, hydraulic and erosion control aspects of drainage on this site. These analyses will be provided in this report with future submittals. We greatly appreciate your time and consideration in reviewing this preliminary submittal. Please, feel free to contact me with any questions or comments that you may have. Sincerely, Timothy J. Halopoff, P.E. Project Engineer 2620 Fast Prospect Road, Suite 190, Fort Gallins, CO 80525 970-491-9888 • Fax: 970-491-9984 • w Jrengineering.com