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HomeMy WebLinkAboutSpecial Review Bowling Alley 555 S Saint Vrain Ave 1983-04-25APPLICATION FOR SPECIAL REVIEW REQUEST NO. 41 ti 5 1303 MI L1 n D 0 STATE OF COLORADO COUNTY OF LARIMER Name John E. and Patricia T. Ownby Mailing Address p. 0. Box 757„Estes Park, Colorado 80517 To the Board of Trustees of the Town of Estes Park, Colorado, and the Planning Commission for the Town of Estes Park, Colorado: The undersigned, or the duly authorized representative thereof, being the owner(s) and lien holder(s) of the following described reds property, to -wit: (3) See Attached legal description do hereby request that the above described property be used for a bowling center (4) pursuant to the provisions of the C-2 (5) zoning district and Chapter 17.56 of the Municipal Code of Estes Park, Colorado. There is attached hereto and made a part hereof, the original and three copies of the site plan. (8) Respectfully submitted, PM K BY. STATE OF COLORADO, ) ss. COUNTY OF LARINER. ) stes Par Eifi2 MENT Chairman of the Board Herb Becker for the First National Bank of Estes Park, George Hix for the Estes Park Bank, John E. Ownby and Patricia T. Ownby , being duly sworn upon their oath, depose ($) and say 4s3 : That they -is- (are) the owner(s) and lien holder(s) of the above described realproperty; that theyaa- (have) read the above Application and know(s) the contents thereof and that the matters stated therein are true. Subscribed and sworn to before me this 2Yri day of /0'17, 19 , by #fd 6s4 r d My commission expires -sir /3 /yff rotary Public 3 6 3 t 4 d,%„ ,v 'Owe (OVER) NOTICE OF SPECIAL REVIEW NO. 41 The real property hereinafter described is subject to the require- ments and provisions of the Application for Special Review No. and the site plan filed therewith as approved by the Board of Trustees of the Town of Estes Park, Colorado, the ordinances of said Town per- taining thereto, and the following agreement, which is a part of said site plan: The undersigned agree that the real property described in the application for special review filed herewith, and as shown on the site plan, shall be subject to the provisions of Title 17 of the Municipal Code of the Town of Estes Park, Colorado, and any other ordinances of the Town of Estes Park, pertaining thereto. s Park Ban STATE OF COLORADO, County of h.,14 ,--e The foregoing agreement was acknowledged before me this 25th day of April , 19 83 , by Herb Becker for the First Nat'l. Bank of Estes Park, George Hix for the Estes Park Bank, John E. Ownby and Patricia T. Ownby Chairman of the Board Witness my hand and official seal. commission expires ..:i;re- / 3 / fr: 3� 1�T�2C/iryItr�.r /4''ve *4 said application and site plan are on file in the office of the k of the Town of Estes Park, Colorado. The real property is described as follows: See attached legal description Execute by the Town of Estes Park, Colorado on the �75ez day of , . TOWN OF TES PARK By Town Ae‘tio`ar TOWN OF ESTES PARK v..\I —J aY Estes Park, Colorado 80517 March 14, 1984 Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION Post Office Box 1200 Estes Park, Colorado 80517 Re: Special Review Request - Bowling Center Dear Ann: I have reviewed the Bowling Center Special Review Request and have the following comments: 1. This request is a result of comments made at the January 17, 1984 Planning Commission Meeting stating . . . Mr. John ownby, Jr. ex- plained that until the owner had plane for the property, he did not wish to remove the existing structures. The site plan was intended as a 'partial Bite plan" for the bowling alley only. Public works Director Widmer stated that the site plan shows bath pieces of property and one completion date for the project. member Richard Wood stated that the public hearing on Special Review Request No. 41 was conducted based on the site plan submitted, and he had a problem with modifying the plan without public input. Chairman Sager stated that without another Special Review Request and public hearing, the Planning Commission would be in error by modifying the plan. Member Duane Blair moved the Planning Commission recommend denial of this request to the Town Board. Member John Carmack seconded the motion and it passed unanimously. 2. Although I was not on staff at the time, May 1983 correspondence does not speak directly to the house removal issue. ,�oa�a a ��n Town of Estes Park Estes Park, Colorado 80517 Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION March 14, 1984 Page two 3. In considering this request, the Planning Com- mission needs to consider the criteria outlined in the Code (Section 17.56.040 and 17.56.050) - especially: "shall review the request in re- lation to the date or dates for completion of all improvements, character of the surrounding neighborhood, the desirability and need for such a use in the specific area of the com- munity"; adverse environmental influences that might result from its location. 4. The Planning Commission also needs to determine whether any comments entered into the record during the Public Hearing pertained to the house issue. Sincerely, TOWN OF ESTES PARK Public Works Department Barbara Cole Town Planner BC/vo TOWN OF ESTES PARK Public Works Department Richard D. Widmer offvom Estes Park. Colorado 80517 March 9, 1984 Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION Post Office Box 1200 Estes Park, Colorado 80517 Re: Special Review Request Number 45 - Revised Bowling Alley Site Plan Dear Ann: I have reviewed the above referenced special review request and have the following comments: 1. A metes and bounds legal description should be added to specify the actual boundary of the special review property. 2. Copies of the access and drainage easements should be provided to the Town. Sincerely, TOWN OF ESTES PARK Public Works Department Richard D. Widmer, PE-LS Town Engineer RDW/vo LYNN A. HAMMONO ROGER E.CLARE. GREI3ORY A. WHITE ALFRED P. DAVIS HAMMOND, CLARK AND WHITE LAW OFFICES FIAB? NATIONAL HAND BUILDING, SUITE 41B LOVELAND, COLORADO 303-B67-1023 March 15, 1984 Ann Jensen Secretary Estes Park Planning Commission Post Office Box 1200 Estes Park, Co. 80517 RE: Special Review Request No. 45 pear Ann: Pursuant to your Memorandum of March 1, 1984, I have reviewed Special Review Request No. 45: I have the following comments: Rcc Sri QED WAR 2 0 1984 1Urn� r aeA Town Administrator NAILING ADDRESS P. O. Sox 701 LOVELAND, Co. 80539 1. The revised Special Review Site Plan excludes the easterly portion of the property that was included in the other site plan previously filed and accepted for the bowling center. It is necessary that the owners and lienholders of that portion of the property excluded from this site plan also sign the agreement on the site plan. This is necessary since their property was formerly a part of another site plan that is being removed from this site plan. 2. Appropriate easements must be obtained from the owners of said easterly portion of the property for the thirty foot (30') wide driveway easement and the drainage easement as shown on the site plan. Also, recording of these easements should be required to insure that they remain with the property. Subject to the above, regarding this matter. Ver GAW:Ib ve no further comments r ly your IA (A - gory A. White orks Department Estes IIP rIlk May 6, 1983 Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION Post Office Box 1200 Estes Park, Colorado 80517 Richard D. idmer 'm Re: Special Review Request Number 41 - Bowling Alley Dear Ann: u Cm dlo 3O51, I have reviewed the site plan of the above referenced special review request and have the following comments: 1. The 53 parking spaces provided appear more than adequate for what I understand is the first phase of eight bowling lanes and should be adequate for the fully developed condition of 12 lanes based on a standard of 4 spaces per lane. 2. Vehicles leaving the paved lot may tend to cut across the east portion of the property to the entrance of the highway south of the real estate building. A berm or fence along the east side of the parking lot should be constructed to prevent this from occurring. 3. A drainage study was submitted. The drainage details on the site plan need to be modified to show the size of the pond, discharge flow rates in accordance with the study, and an emergency overflow spillway. 4. Any outside refuse areas should be shown. 5. Any proposed signs should be shown. fy. C:'Y11200 11.o-:ulllu:u dlFiii' rmr: iq::31U::$�I ' hf'n of Estes Park Es1 iry; O a k Co III is Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION May 6, 1983 Page two 6. The site plan title should be changed to show that it is a special review, all signatures should be added, and the reproducible quality should be improved. A neighborhood map is attached. Sincerely, TOWN OF ESTES PARK Public Works Department chard D. Widmer, PE-LS own Engineer/Planner RDW/vo Attachment 7 DEGOOD AND PHIPPS ATTORNEYS AT LAW 925 EAST 7TH ST. P. O. BOX 657 LOVELAND. COLORADO 50537-0657 TELEPHONE (303) 667.2131 F. RAY DEGOOD JOHN G. PHIPPS May 24, 1983 Board of Trustees Town of Estes Park Estes Park, Colorado I am writing to you on behalf of my clients, John E. Ownby and Patricia T. Ownby, and in regard to their Application for Special Review, concerning a bowling center and their property located at 531-33-35 South St. Vrain, Estes Park. Pursuant to Section 17.56.090 of the Town of Estes Park Municipal Code, this is to certify that if John E. Ownby, Patricia T. Ownby, First National Bank, Estes Park, and The Estes Park Bank, Estes Park, have signed said Application and Site Plan, as may be required, then all persons or corporations having any record interest in said land described in said Application and Site Plan have signed the same. Very truly yours, John G. Phipps JCP:ga Colorado Reg. #724 STATE OF COLORADO DIVISION OF HIGHWAYS P.Q. Box 850 Greeley, Colorado 80632-0850 (303} 353-1232 Ms. Ann E. Jensen Secretary Planning Commission Town of Estes Park P. 0. Box 1200 Estes Park, Colorado 80517 Dear Ms. Jensen: May 9, 1983 RECEIVED MAY ! 0 1983 Town of [slay Park TOM Administrator Larimer County SH 7 0wnby Sub. W. Side of SH 7 at Graves Ave. (Estes Park) DOH FILE 45100 We have reviewed the 0wnby Special Review Request for a bowling alley, and we have the following comments. 1. Access to this property is presently available through two existing drive- ways on State Highway 7. According to the State Highway Access Code, no more than one access should be allowed unless: an additional one would not be detrimental to the highway, it is necessary for safe and efficient use of the property, or allowing only one access would be in conflict with local safety regulations. Since the access at the north property line is intended to serve the new bowling alley and it aligns with Graves Avenue, the other driveway should be abandoned. Elimination of this driveway would improve the overall safety of access to this property by reducing potential turning conflicts. The addition of a bowling alley to the existing real estate and printing offices requires the issuance of a "Permit for Access." This office is currently reviewing an application for an access permit for this bowling alley. With the written concurrence of the Town, this driveway may have to be reconstructed to accommodate the anticipated increase in traffic. A right -turn deceleration lane on S.H. 7 may be required as part of this reconstruction. 2. We note on the site plan that some of the surface runoff from the bowling alley portion of this property will be detained and released from a drain- age pond. We ask that all storm water from this site be detained and released at the appropriate historical undeveloped runoff rate so that there will be no adverse impact on the highway right of way. MS. ANN E. JENSEN May 9, 1983 Page Two Thank you for the opportunity to review this development proposal. Very truly yours, ALBERT CHOTVACS ACTING DISTRICT ENGINEER DDR:da cc: A. Chotvacs D. Yost Area Foreman File: Crier -Jacobson w/encl. Ownby Sub. DOH FILE 45100 ugas Rames District Preconstruction Engineer LYNN A. HAMMOND ROGER E.CLARZ[ GREGORY A.WHITE ALFRED P. DAVIS HAMMOND, CLAR1S A.NIi WHITE LAW OFFICES FIRST NATIONAL SANE 301LDIN0, SUITE 418 LOVELAND,COLDRADO 303-BB7-1023 May 4, 1983 Ann E. Jensen, Secretary Estes Park Planning Commission Post Office Box 1200 Estes Park, Co. 80517 RE: Special Review Request No. 41 Bowling Alley Dear Ann: MAILING ADDRESS P. O. Box 701 LOVELAND, Co. 80539 Pursuant to your Memorandum of May 2, 1983, I have reviewed the Special Review Request No. 41 and have no comments regarding same. If you have any question-, please give me a call. Ver truly yours, A. White GAW:lb TOWN OF ESTES PARK Public Works Department Richard D. Widmer Estes Park, Colorado 80517 January 4, 1984 Mr. John Ownby JOHN OWNBY & ASSOCIATES, INC. Post Office Box 757 Estes Park, Colorado 80517 Dear John: Your request to modify the site plan for the Bowling Center (Special Review Number 41) will be heard by the Planning Commission on January 17, 1984 at 1:30 P.M. and by the Town Board on January 24, 1984 at 7:30 P.M. It would be in your interest to have representation present at both these meetings to present the request and answer questions. You should also be aware that this special review site plan as approved covers both pieces of property. Therefore, before future development could occur on either parcel, this site plan would have to be modified since development of the property is limited to what is shown on the approved site plan. Please let me know if you have any questions regarding this matter. Sincerely, TOWN OF ESTES PARK Public Works Department Richard D. Widmer, PE-LS Ton Engineer RDW/vo John & Associates, Inc. January 3, 1984 Town of Estes Park 170 MacGregor Avenue Estes Park, Colorado 80517 Attention: Mr. Richard D. Widmer Subject: Estes Park Bowling Center Special Review Number 41 Dear Rich, TOWN OF ESTES PARK PUBLIC WORKS DEPT• I am writing this letter to express my appreciation to you and the Town Board for the approval of the extension of the subject project completion date to June 30, 1984. This should allow us sufficient time to have all paving and fence work completed after the spring thaw. I would like to ask for a clarification of one item on an official basis that has only been discussed verbally up to now. This item pertains to the timing of the demolition or removal of some of the buildings on the lower piece of property between the bowling alley property and the road. As you know, this is a separate piece of property and it was our intention to demolish the "one story frame shed" during the construction of the bowling alley, which was done. We have no schedule at this time to move or relocate the "one story frame house" or the "one story frame building". Our long range plan for the development of the lower piece of property probably will include the removal of the existing structure, but it is not our intention to do that at this time. If the Town has assumed that we intended to remove these two buildings along with the construction of the "Bowling Alley", we officially request that this be stricken from site plan. J0/mp Thank you for your consideration. Very truly yours, John Ownby DIVISION OF C 0 T DEVELOPMENT COMPANY 363 ELKHORN AVENUE • P. 0. 80X 757 ESTES PARK, COLORADO 80517 13031 586 2746 TOWN OF ESTES PAR; .r. f :may Estes Park. Colorado 80517 November 23, 1983 Mr. Douglas Hample, Treasurer JOHN OWNBY & ASSOCIATES, INC. Post Office Box 757 Estes Park, Colorado 80517 Dear Mr. Hample: The Town Board, at its November 22, 1983 meeting, approved extending the project completion date for the Bowling Center (Special Review Number 41) to June 30, 1984. All work shown on the approved site plan must be completed by this date. Please let me know if you have any questions concerning this matter. Sincerely, TOWN OF ESTES PARK Public Works Department Richard D. Widmer, PE-LS Director RDW/vo cc: Dale Hill Barbara Cole Stan Jones .f' If iu.x 1,w0411 If•ic'mom. f 30 31 ifiFe- i 3 31 & Associates, Inc. January 20, 1984 Town of Estes Park 170 MacGregor Avenue Estes Park, Colorado 80517 Attention: Mr. Richard D. Widmer Subject: Estes Park Bowling Center Special Review Request Number 41 Dear Rich, f %E JA N 2 0 19: Town of Fsia3 Park " Admini I am writing this letter to request that "Special Review Request Number 41 - Bowling Center" be removed from the agenda of the Board of Trustees meeting scheduled for January 24, 1984. We appreciate your consideration of this matter, however, we wish to withdraw our request for the site plan revision at this time. It is our intention to submit a revised site plan for the February meeting. If you have any questions regarding this please feel free to contact me. JEO/map cc: Ms. Ann Jensen DIVISION OF C 0 T DEVELOPMENT COMPANY 363 ELKHORN AVENUE • P. O. BOX 757 ESTES PARK, COLORADO 80517 13031 566.2746 John & Associates, Inc. November 10, 1983 Town of Estes Park Planning Commission 170 MacGregor Avenue Estes Park, Colorado 80517 Subject: Estes Park Bowling Center Dear Planning Commission Members: RECEIVED N O V 1 0 1983 Town of Lslcs nark Town Admmistralat The Estes Park Bowling Center is now complete except for the paving of the parking lot. We have been advised by the excavating contractor and the paving contractor that the excavation and fill around the bowling facility would result in settling, making the paving of the parking lot at this time pointless. They have suggested we wait through the winter and let the ground settle and pack and then pave in the spring. The parking lot has been graded and a layer of road base put down so the condition of the lot, while not paved, is good. The deceleration lane and road to the parking lot have been paved. We are therefore requesting an extension of time to complete the paving of the parking lot until next spring. We appreciate your consideration of this request. V truly yours, et& difa/14/4— Doug as B. Hample Treasurer DBH/mp cc: Mr. Richard Widmer DIVISION OF C 0 T DEVELOPMENT COMPANY 363 ELKHORN AVENUE • P. 0 BOX 757 ESTES PARK, COLORADO 80517 13031 586-2746 (PROFESSIONAL SURVEYORS & ENGINEERS) Mr. Richard Widmer Town of Estes Park P.O. Box 1200 Estes Park, Colorado 80517 RE: Bowling Center - Detention Pond Dear Mr. Widmer: W.O. 1498 September 26, 1983 2 EP 2 '1983 On September 22, 1983, we construction staked the detention pond at the Bowling Center to provide the required detention volume. The attached sketch shows the revised layout and volume calculation. On September 23, 1983, we observed the construction pond and noted that the pond had been cut to grade in accordance with our construction stakes. The berm on the East and South side had been raised to grade as required. If you require additional information, please contact us. Respectfully yours, Paul M. Kochevar, P.E. Estes Park Surveyors PMK;lrp Attach. DIVISION OF HIGHWAYS P.O. Box 850 Greeley, Colorado 80632-0850 (303) 353-1232 Ms. Ann E. Jensen Secretary Planning Commission Town of Estes Park P. O. Box 1200 Estes Park, Colorado 80517 Dear Ms. Jensen: STATE OF COLORADO May 9, 1983 RECEIVED MAY 1 0 1983 Town of Estes Park iprol Administrate[ Larimer County SH 7 Ownby Sub. W. Side of SH 7 at Graves Ave. (Estes Park) DOH FILE 45100 We have reviewed the 0wnby Special Review Request for a bowling alley, and we have the following comments. 1. Access to this property is presently available through two existing drive- ways on State Highway 7. According to the State Highway Access Code, no more than one access should be allowed unless: an additional one would not be detrimental to the highway, it is necessary for safe. and efficient use of the property, or allowing only one access would be in conflict with local safety regulations. Since the access at the north property line is intended to serve the new bowling alley and it aligns with Graves Avenue, the other driveway should be abandoned. Elimination of this driveway would improve the overall safety of access to this property by reducing potential turning conflicts. The addition of a bowling alley to the existing real estate and printing offices requires the issuance of a "Permit for Access." This office is currently reviewing an application for an access permit for this bowling alley. With the written concurrence of the Town, this driveway may have to be reconstructed to accommodate the anticipated increase in traffic. A right -turn deceleration lane on S.H. 7 may be required as part of this reconstruction. 2. We note on the site plan that some of the surface runoff from the bowling alley portion of this property will be detained and released from a drain- age pond. We ask that all storm water from this site be detained and released at the appropriate historical undeveloped runoff rate so that there will be no adverse impact on the highway right of way. MS. ANN E. JENSEN May 9, 1983 Page Two Thank you for the opportunity to review this development proposal. Very truly yours, ALBERT CHOTVACS ACTING DISTRICT ENGINEER DDR:da cc: A. Chotvacs D. Yost Area Foreman File: Crier -Jacobson w/encl. Ownby Sub. DOH FILE 45100 ______o D6u 9 as Rame J District Preconstruction Engineer Public Works Department • �" May 6, 1983 Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION Post Office Box 1200 Estes Park, Colorado 80517 Richard D. Widmer rwcwi Re: Special Review Request Number 41 Bowling Alley Dear Ann: I have reviewed the site plan of the above referenced special review request and have the following comments: 1. The 53 parking spaces provided appear more than adequate for what I understand is the first phase of eight bowling lanes and should be adequate for the fully developed condition of 12 lanes based on a standard of 4 spaces per lane. . Vehicles leaving the paved lot may tend to cut across the east portion of the property to the entrance of the highway south of the real estate building. A berm or fence along the east side of the parking lot should be constructed to prevent this from occurring. 3. A drainage study was submitted. The drainage details on the site plan need to be modified to show the size of the pond, discharge flow rates in accordance with the study, and an emergency overflow spillway. 4. Any outside refuse areas should be shown. 5. Any proposed signs should be shown. n 61f k k ( t1 I1'I,h'ti�a Ms. Ann Jensen, Secretary ESTES PARK PLANNING COMMISSION May 6, 1983 Page two The site plan title should be changed to show that it is a special review, all signatures should be added, and the reproducible quality should be improved. A neighborhood map is attached. Sincerely, TOWN OF ESTES PARK Public Works Department Richard D. Widmer, PE-LS Town Engineer/Planner RDW/vo Attachment STORM WATER MANAGEMENT ANALYSIS FOR A PORTION OF LOT 37, WHITE MEADOW VIEW PLACE ADDITION and A PORTION OF LOT 6, MANFORD ADDITION PREPARED FOR: JOHN OWNBY P.O. BOX 757 ESTES PARK, COLORADO 80517 PREPARED BY: ESTES PARK SURVEYORS P.O. BOX 3047 ESTES PARK, COLORADO 80517 (303) -586-5175 APRIL 1983 TABLE OF CONTENTS ITEM PAGE I. SCOPE 1 II. PROJECT DESCRIPTION 1 III. BASIN DESCRIPTION 2 IV. DESIGN METHODS AND DESCRIPTIONS 3 V. RUNOFF RATE CALCULATIONS 4 VI. DETENTION VOLUMES 4 VII. RECOMMENDATIONS 5 VIII. SUMMARY 6 IX. APPENDIX 7 I hereby certify that this report for a portion of Lot 37, White Meadow View Place Addition, and a portion of Lot 6, Manford Addition, was prepared by me or under my direct supervision for John Ownby and meets or exceeds the criteria in the Larimer County Storm - Water Management Manual. Paul M. Kochevar P.E. No. 15760 April 19, 1983 I. SCOPE This report is a drainage analysis of a storm -water system to be constructed in conjunction with the development of Lot 37, White Meadow View Place Addition, and Lot 6, Manford Addition. Included herein is an overall drainage analysis providing the following detail: A. Identification of overall drainage patterns in the basin. B. Peak runoff rates for the historic and developed 100-year frequency storms at locations in and around the project site. C. Estimate of the volume of storm -water that would represent the difference in runoff between the historic and developed conditions on the project site. The specific details of the system required for the proper development of this site are included on the site plan attached hereto. II. PROJECT DESCRIPTION The site is located on the west side of the South Saint Vrain Highway at about the Graves Avenue intersection. More particularly, the site is a portion of Lot 37, White Meadow View Place Addition, and a portion of Lot 6, Manford Addition, in Section 30, TSN, R72W of the 6th P.M., Larimer County, Colorado. The westerly portion of the site is proposed to be developed as a 75'x 160' commercial building with adjacent hard -surface parking area. A roadway along the north property line will be developed to provide access to the new facility. III. BASIN DESCRIPTION The overall drainage area that contributes to runoff through and from this site totals about 14 acres with 2.24 acres of this total being onsite area. The offsite area is characterized by 1/2-acre to 1-acre single-family lots, average slope of 10%, good ground cover with native grasses and shrubs and moderate tree cover. The onsite area has shallow topsoil, fair ground cover and sparse tree cover. Of the four existing structures on the site, one is proposed to be removed as part of this project. Existing drives and parking areas affect considerably the existing runoff quality and quantity. The primary purpose of this report is to size the needed detention volume and outlet in order to main- tain historic runoff rates from the site. The site was divided into two drainage areas to reflect the routing of runoff after the new facility is constructed. Basin A is comprised of 1.34 acres onsite and about 1.7 acres offsite. Most of basin A will be covered by asphalt, half of the new building's roof and two existing structures (one existing structure in basin A is proposed to be removed). The discharge point for runoff from this basin is at the north end of the existing drive culvert. Basin B constitutes the remainder of the overall drainage area totaling 9.75 acres offsite and about .90 acres onsite. Half of the new building, a small portion of proposed parking area and one existing structure will constitute the impervious area of this basin. 2 IV. DESIGN METHODS A N D ASSUMPTIONS The method of analysis used for determining peak runoff rates was the Rational Method as follows: Q = C Cf IA where: Q = peak runoff rate in cubic feet per second C = combined runoff coefficient = .20 for undeveloped or historic condition = .95 for hard -surface areas Cf= 1.25 for 100-year storm I = storm intensity in inches per hour A = area in acres Overland flow was calculated using the following equation: T = 1.87 (1.1 - C Cf) D1/2/ S1/3 where: C Cf= adjusted runoff coefficient D = length in feet S = slope in percent T = concentration time in minutes Detention volume calculations were based upon the following equation as provided by Richard Widmer, Town Engineer: 60 V = Td2 (Qd - K Qh) ( 43560 Td Th where: V = volume to be detained in acre-feet Th historic concentration time in min. Td= developed concentration time in min. Qh historic runoff rate in cubic feet/sec. Qd= developed runoff rate in cubic feet/sec. K = factor based upon ratio Th/Td V. RUNOFF RATE CALCULATIONS BASIN CONDITIONS APPROXIMATE POROSITY AREA (.20) acres (.95) A w/o development 1.17 w/development 0.36 B w/o development 0.85 w/development 0.17 BASIN CONDITIONS COMBINED C A w/o development 0.30 w/development 0.75 B w/o development 0.24 w/development 0.81 BASIN CONDITIONS C Cf A w/o development 0.38 w/development. 0.94 0.17 0.98 0.05 0.73 DISTANCE (feet) 420 420 460 COMBINED C SLOPE (%) 8.6 8.6 7.8 0.30 0.75 0.24 0.81 TIME (T) (minutes) 13 10 minimum 16 460 7.8 10 minimum I A in%hr acres 5.4 1.34 5.95 1.34 B w/o development 0.30 5.08 0.90 w/development 1.01 5.95 0.90 VI. DETENTION VOLUMES Q100 c.f.s. 3 7 2 5 BASIN Td Qd Th Qh K V (cubic feet) A 10 7 13 B 10 5 16 3 1.68 1,874 2 1.81 1,640 VII. RECOMMENDATI ONS The aforementioned calculations indicate the maximum desireable discharge rate of 3 c.f.s. from basin A and 2 c.f.s. from basin B. The detention volumes that represent the increased flow from an undeveloped to a developed condition are 1900 cubic feet for basin A and 1600 cubic feet for basin B. Both the peak runoff rate and detention calculations represent the site as totally developed in a fashion similar to that shown on the site plan. The proposed provisions for detention of storm -water runoff should be constructed at the same time as the development of the new building and parking area. The existing grade in the proposed parking area is already at 10%. Ideally, the new detention facility would be placed in the proposed parking area. However, with grades already at 10%, the provision for detention in the parking area becomes unreasonable. The new building will be placed about 25 feet from the south property line. This leaves a good area for placing a small detention pond that could be large enough to provide the total volume needed for both basins. This location is also on the runoff route of the larger offsite contributary area and outlets in an area that does not adversely affect the future development of the remainder of the site. The proposed detention pond would have an average surface area of 1100 square feet and an average depth of 3.5 feet for a maximum capacity of 3850 cubic feet. The outlet structure shall be a rectangular notch weir (6"x l'-6") on a concrete box with an 18" diameter outlet pipe to an open swale. The swale will be constructed along the south property line to the barrow ditch adjacent to the South Saint Vrain Highway. 5 VIII. SUMMARY It is my opinion that the information contained herein represents an acceptable approach to storm - water management in and around the previously de- scribed site. The analysis and sizing of recommended components provides the framework for a desireable system that can serve to better and/or maintain water quality within the basin. The construction requirements for each component must be carefully detailed to satisfactorily complete the last task and arrive at the ultimate goal. The information contained within this report represents standard and accepted engineering practice. No other warranty is either expressed or implied. IX. APPENDIX Intensity/Duration Curves (Town of Estes Park) Dotention Volume Formula 4. „ '101t. 07.0 0'0)01' 0 40,200/ • I 3o ,o 90 /2o STcRM O��RA7rcAV Qo- a,t- 2.0 Volume to be detained ydrograph of Developed Runoff ydrograph of Histon"c Runoff 1 I I To 2To Ta TIME -Maximum release rote (Cs) It 1.0 1.5 * 3.0 1.4 � 0 l 2 j 4 TH/To 1.5, 1.8 1.9 ?TH Rev. 8/77 Formula for Approximating Detention Volume V = Tat QD _ K( 2! 60 TD TH 43560 v = Volume to be detained (acre feet) TH = Historic Time of Concentration (minutes) To = Developed Time of Concentration (minutes) QH= Historic Runoff (cubic feet per second) Cp= Developed Runoff (cubic feet per second) K = Factor based upon ratio TH/TD as shown° on graph FIGURE 2 41-6- TRIANGULAR METHOD FOR DETERMINING DETENTION VOLUME F E ARK sLes I :IrN 051 7 1 certify that the premises described in Special Review Request Application No. 41 were posted with a sign advertising the public hearing on Special Review Request No. 41 requesting to construct a Bowling Center on a portion of Lot 37, White Meadow View Place Addition to the Town of Estes Park, Colorado. Signature ate )))))/%Z0/l/,Aff7rrWY. "/rrr„ .rear IIIPOOhOtool 101.11111 ul riu4uohrhh,!l 11 1 „14 ho hIlloohl �hhGjpuuuuoiuhh' �i1��111111U;9! . 0 Km( 10 '21 o If ^le. IIp[1 11( (i)) 5 6 533t Proof Of Publication STATE OF COLORADO COUNTY OF LARIMER Anal) e 2„ muncher being duly sworn, deposes and says: 1. That he is the publisher of the Estes Park Trail -Gazette, a semi -weekly newspaper printed and published In the Town of Estes Park, County of Larimer and State of Colorado. 2. That the said Estes Park Trail -Gazette is printed and published at regular intervals, two times each week, Wednesday and on Friday, and that it has a general circulation in the County of Larimer, and elsewhere. 3. That the said Estes Park Trail -Gazette -was established and has been printed and published in said County uninterruptedly and continuously during a period of at least fifty-two consecutive weeks next prior to the first issue thereof containing said a copy of which is hereunto attached. 4. That the Estes Park Trail -Gazette is a semi- weekly newspaper of general circulation, and Is printed and published in whole or part in the said Town of Estes Park and County of Larimer in which said Legal Notice is required by law to be published, a copy of which is hereunto attached, 5. That the said Estes Park Trail -Gazette is a semi- weekly newspaper within the meaning of an act con- cerning Legal Notices and Advertisements being Chapter 109 of the Colorado Revised Statutes of 1953. B. That the said annexed Legal Notice was published in the regular and entire edition of the Estes Park Trail -Gazette, a duly qualified semi- weekly newspaper for that purpose, within the terms and meanings of the above named acts. 7. That the said annexed Legal Notice s a full, true and correct copy of the original whin was regularly published in each of the regular and entire issues of said newspaper, a legally qualified paper for that purpose, once each week, sn the same day of each week for �successive weeks by nne insertions and that the first publication thereof was in the issued dated May 6 , 19 wand that the last publication was in the issue dated Subscribed and sworn loth clay of May 6 .19.,$,3. Publisher. to before me this —�-1 TdAY , 19 My commission expires y Public „July 1,5 19 14 (Published is the TraU'Ouutte, Fri., May8, NOT7CE OF PVBUC HEARING SPECIALREv16W $®QUEST NO, 41 Notice is hereby given that an application . fr-hoe been filed by John E. and Patic4f T. ownby under the ininielierief TUIe` 17 of ' the Municipal Code of the Town`of Eons' Park; Colorado., requesting to comet:m t e ' bowling center 'me C•2, Restricted Commer... cial,Zoning District cei the foliowing de•, cribed property:. ,,,,. . t A portion of Lot 37, White Meador View ` Place Addition to'the City of Eatss Colorado and a portion of Lot 4 of Manfoed addition. Estee Park, Colorado, all in Seddon 30,, Township° 5' North; Ringo` 72,"s Wemi` of the 8th PwM' Larimer County, Colorado, " t more particularlydeecribed sefoUovra: . rt The portion of Lot 37, White Meadow View Place: Beginning tilt' the, southeast Comer of said 'tot 37: thence `North 248.5 feet to the South line of thettactConveyed to David F. Haut by deed recorded in Book 1199. pags;4b8,ae reception ea.:, 889844; thence along said south une'N 89degrb a 39',.30•,W 241„40 feet (described as bei, west 245.0 facet to the Northeaut comer of , "teat tract conveyed to Harlow F. Brown by. deed'tecrodied in Book 1224, Pogo" to u , reception ire• 850665; tbance Along the put Use of said Brown toad end the Efat live of that tract conveyed le Mayors P. Ramage es recorded in Boot ;1234, Page< 13, , u reception no. 850854, 9 0 degrees'111' 10" i ; -W ideecribed as, being eouthl a distance of 240.5 feet to the Singh line of aid Lot 37; ` thence along the"eouth tine oink' Lot 37, " g 88 degrees 38',..30" E (shown +on`Whits r.`:Meadow oleo Place plat as being S 89 %;deg 22' El a distance of 245.0 feet to the r poistof beginning. The remainder of the propeity d ee follows; Beginning at the eautheut coy. oar of' .aid Lot 37,, -White Meadow View i Place Additions them* North 248.5 feet to the south line of the tract conveyed to David F. Hut ifs the deed sforsaaid, thence 9 88" degrees 38' 80` E 108,16 feet more or tea'tit w *5..,elt Writhe swish 9t yr ru21 way:; thence eoutherb along 151 wwt line of said"Highway 284.30 feet to a point on the north line of Lot 27, Bonnie Brae Addition, thegjvs N 89 dsgrsaa 35' W to the pohit beginning , '„ a% P6reuaot try the pravieiooe of CAapte' 17,58 of the Municipal Code of the Town of Estes Park, Colorado, notice is bsreby given that a public bearing is relaUan to said apple cation will bribeld by the BtteeParkPlanning Commiuiooetthe hour of 1:30 p.in. on May 17, 1998, or es noon thereafter as applicant may be heard, fn"tbe Board Room Mown 103) of the Muniadfpa�[t juiding, 170 Mac- ver 5.1.. Gregat-APub Colorado. at whit} time plaee any lnt6rssta' j may.ppear %too i, 'ORIMMINMOQI,V1,01.0.19,1NOINIUMNII, wamagmawageono,',Rem '1'1)