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HomeMy WebLinkAbout1127 W. PROSPECT RD., WIRELESS TELECOMMUNICATION FACILITY - PDP - PDP150033 - CORRESPONDENCE - REVISIONS (3).1t .4. I I �1 11 I 110 a ,of EXHIBIT 1 CONTINUED 'VECTOR e n Q I f Project Nwnber 1,0142.526- l i l January 28, 2016 STFAI.THR* CeALceslntent Scsiutions 3034-A Ashley Phosphate Rd Vmth Charlestcm, SC 29419 ATTENTION: Caroline Watson RF.FFRFNCF.: W- Russell Floyd Jr. (Slealthp: T4114AMSH4110RO); 3093 Ashley River Road, Charleston, SC 29414 Fall 7zne Letter Dear his. wam)n: It is our understanding that a 150 R xlimline has hem pmpn%ed far this site. UTAH OFFICES Sandy Layton St. George The aaove-rnmliarr_d pole has'neen designee in accordance with the International Ruildirg Cade, 2012 F-clitior. and the ANSI TIA.222-Cr'-Stru`-tural Stnnclnri For Ancona Supporting Structures and Anicnna%". Additionally, all xteel mernbm and mr-sections, have hem designed to toes! the requirerner-ta of the AISC Steel Con%truetimr Mmmal. Sm-cral factors are used to deeenrdre the xird pressures; on the pole-, e.g., a gust response (yore i% useii to account for %udder changes it wind xpced, and a height one cimt is used to amount for iraeasing wind speed with height. The pole has been deragned wish the following design criteria: 1. Wind speed (V): 14.4 Trph (3-xecand gwit) per the ASCE 7.10 uandud 2. TIWS of fi0 mph (s-secrrrtd gust) far the service candition (deflection limitations only) 3. Structure Claxs Tl, Fspn%urc C, Tapagrrphic Category l in designing steel mernbcm and cannectims, failure is defired as the pomni at which the induced %tresses. dm to the design loads exceed the yield xuergth of the Trzterial. lit thi%Txnint perrnarau tlellc'titxts will he initiated. llcrweses, ruTtute n: the steel memixrs anc cnnrimmam in a properly cansuucted steel pole is unlikely, since steel is a ductile nuteru.l, and L% not arltapalc6 ur-til loads ir. excess of the design Itsads, such ax xuxtainec or impact loads From hurricane -type winds., are applied. Rupture is defined m eontplete'-weakaEr of the steel member or connection. Tt has':neer. requested that the pmpmaii slimline he designed :or a fall zone radius of911 n. sd`e has-e satisficE this requirement by ensuring that it the unlikely evert of failure, the point of rnaxiramm stress will incur ir. the upper 90 R (or less) of the structure. The structure has been designed xuch that the highest Suess within the :all zone i% 99°h o: capacity. Fmpected stress rabox below this paint ircluding all stnictural elernents, all c mrectiom below this Taint, anchor rocs, etc., are at least 21Wi less than the highest stress: ratio within the top 90 dt nflhc %Iruc ux ifthe structure ruphuts, it will 13kely do so within 90 R from the top of the pole. Thcrr5am, this structure is Emigr-ed in have a maximum 90 1 fall zone radius. We hope This meets your needs. 1: you have any further cueatiam regarding this matter, please can this office at your corvenierl[ rttifl llU.- Very truly your%, VECTOR STRUM RAl- ENGINFERS RogerT. ANAm1h, P.E. Ninc ipal Engineer Jan. 28, 2016 RTA; mbt 913E S. Stata St., Suite 101 1 Sandy, UT 840701 T (601) 990-17751 F (801) 990-1776 1 www-vectorae.cam EXHIBIT 1 From: Phil Smith phil@kcmarketers.com B S tcbject: Re: Drawings Date: March 10, 2016 at 8:12 AM To: Caleb B. Crossland ccrossland@atlastowers com Caleb, Here is a fall zone letter for 90', as you know the pole can be designed to break at any height. Thanks, Phil Smith K-C Marketers, Inc. 801-550-3784 ��►/ECTC n 3 I n e M R e Project Numbav: 110142-326-151 January IS, 2016 STEALTHO Concealment Solutions 3034-A Addiry Phosphate Rd North Charleston. SC 29419 ATTENTION: Caroline Watson REFERENCE: W. Russell Floyd Jr. (SteakhAY: TM14-01835H-0ORO); 3093 .Ashley River Road, C►ar)ette n, SC 29414 Fall 'Lae Letter Dear MS. Wiuson: 11 as oar untlen shading that a 1511, it slunuac has been pmposod Tar tiln site. UTAH OFFICES Sandy Layton St. George The abave•mmretioned pole has been desigled in accotdaere with The Inlccoabocal Building Code, 2012 Edition and the ANSI TIA-"? -G-Scructural Standard for Ancona Supporting Structum and Antere . Additionally, oil steel members and connections have bern designed to mel the requirements of the RISC Sleep Conamctioo Manual. Several foetus arc used to detenoine the wind prcmures on the pole: e.g., a goal response factor is treed to account for sudden changes in wand speed and a hisgdn coeffitxmt is used to attvunl far i cmasmg wind speed with lenght The pule has been designed with the following design crittica : 1. Wind speed 1 V 1: 144 caph 0-+traced gantl per the ASCE 7.1 D standard 2. H1b'S of" mph t t.sarond gust i for the service condition 4de0ectian limatasions onlyt .. Stnacurs Class IL Expomm C, Topographic Cak7my I In designing stud members oat camrections, fiedum is defined as the patent at which the induced stresses due m the design bads exceed the yield strength of the malarial. At this point petmanml deffecboos will be initiated. Rawest. rupram of the steel members and connections in a property constructed steel pate is unlikely, since steel u a ducks tmterial. and i not antinpased until loads in excess of the design k m& such in sustained ar impact loads from httmcane-type wands, arm applied. Rupture is defined in complete breakage of the steel member or mcticco e. It has been reqacittod that the proposal dirdusc be designed for a fall rune radius of 90 f t. We have satisfied this ralurnamenl by enmrmg that in the unlikely event of filduce_ the point of maximum stress well l occur in the upper 90 ft tar lent I of the smxtme. The sWa-ture has been designed such that the highest suss within the fall sane is 99%of capacity. Expected stress tabus below this point mchadmg all structural Gietacari, all canrnaXtwrr below this point, anchor rots, ctc., arc at least 21Wi lrsa than The highest stress ratio within the tap 90 11 at The structure, if the stmcturs raptures, it will likely du so within 90 9 from the top of The pole_ Therefore, this structure is designed to hair a maximum 90 N fall cane radian We hope this mects yawr needs. If you have any further mmmience. "tell Very truly yours, VECTOR STRUCTUFAL ENGINEERS s...— 7 s t.....ra 0 c Ne.26669 T regarding this matter, please cad this office at yaw Comment Number 3 Atlas has incorporated this request into the updated drawing set. Comment Number 4 Atlas does not intend to incorporate lighting into the site unless otherwise directed by the city of Fort Collins. Best Regards, Caleb Crossland Atlas Tower Companies 4450 Arapahoe Ave., Suite 100 Boulder, CO 80303 Atlas acknowledges and consents to this comment. Department: PFA Comment Number 1 Atlas acknowledges and consents to this comment. Comment Number 2 Atlas acknowledges and consents to this comment. Storm Water Engineering Comment Number 1 Atlas has incorporated this request into the updated drawing set. Comment Number 2 Atlas has incorporated this request into the updated drawing set. Department: Technical Services Comment Number 1 Atlas has incorporated this requested change into the updated drawing set. Comment Number 2 Atlas has incorporated this requested change into the updated drawing set. Comment Number 3 Atlas has incorporated this requested change into the updated drawing set. Department: Wastewater Engineering Comment Number 1 Water for a sprinkler system may be necessary for the landscaping. Department: Zoning Comment Number 1 Atlas will invest in a high quality mono -pine tower like the ones in Exhibit 2. The tower will be made RF material and have at least 2.5 branches per vertical foot. In addition, Atlas will incorporate bark cladding on the truck of the tower. Atlas will provide sample branches and bark cladding with this application. Atlas has incorporated this request into the updated drawing set —see sheet C-3. Comment Number 2 Atlas has incorporated this request into the updated drawing set —see sheet C-3. Comment Number 7 Atlas has incorporated this requested change into the updated drawing set. Comment Number 8 Atlas has incorporated this requested change into the updated drawing set. Comment Number 9 Atlas has checked/updated the scale dimensions on the site plan. Comment Number 10 Atlas has incorporated this requested change into the updated drawing set. Comment Number 11 Please see Exhibit 3 for images of the proposed fence material and Exhibit 4 for updated photo simulations. Comment Number 12 Atlas will use the suggested species when reseeding. Comment Number 13 Atlas has worked to incorporate these comments into the updated drawings set. Please let us know if anything should be modified. Comment Number 14 Atlas has worked to incorporate these comments into the updated drawings set on sheet C-4 in the NHBZ Area Map and the Existing Impervious Areas and Proposed Imperivous Areas details. Comment Number 15 Atlas has incorporated this requested change into the updated drawing set. Department: Light and Power Comment Number 1 Atlas acknowledges and consents to this comment. Comment Number 2 Atlas acknowledges and consents to this comment. Comment Number 3 Atlas has incorporated this request into the updated drawing set. Comment Number 4 Atlas has incorporated this request into the updated drawing set. Comment Number 5 Comment Number 1 (a) Atlas designed the proposed communications facility to preserve and enhance the ecological character, function, and wildlife use of the natural habitat and to minimize and mitigate the foreseeable impacts of development. (b) Atlas designed the proposed communications facility to preserved and enhance the existence of wildlife movement corridors. (c) Atlas designed the proposed communications facility to preserve all existing vegetation to the maximum extent possible. (d) Atlas designed the proposed communications facility to preserve natural habitats to the maximum extent possible. Atlas will place the site within what is existing pavement. (e) Atlas designed the proposed communications facility to so as to minimize the degradation of the ecological character of the surrounding area. (f) Atlas designed the proposed communications facility to be located within what is currently a blacktopped area. For this reason, it will preserve existing site topography. (g) Atlas designed the proposed landscaping to enhance the natural ecological characteristics of the site. (h) Atlas designed the proposed communications facility so that the access is compatible with the ecological character and wildlife use of the natural habitat. (i) Atlas designed the proposed fencing to be compatible with the ecological character of the natural habitat. Please see Exhibit 3 for an image of the proposed fence. Comment Number 2 Atlas has incorporated this requested change into the updated drawing set. Comment Number 3 Atlas has incorporated this requested change into the updated drawing set. Comment Number 4 Atlas has incorporated this requested change into the updated drawing set and has confirmed that the NHBZ calculations do not include these areas. Comment Number 5 Atlas has incorporated this requested change into the updated drawing set. Comment Number 6 Atlas has incorporated this requested change into the updated drawing set. Minimum Branch Height: The branches on the proposed monopine will begin at 11ft from the ground. This is a natural height at which branches of a tree this size might begin. This height will conceal the truck from almost all of the surrounding area while allowing access to the ground equipment without physical obstruction from the branches. Trunk/Pole: Atlas will utilize bark cladding on visible portions of the trunk. The base of the trunk will be around 3-4 feet, a typical width for a tree of this height. Additional Supporting Information: Please see Exhibit 2 for images of the kind of monopine that Atlas would build at this location. Comment Number 6 The equipment will be within equipment cabinets. The cabinets will be 7' 6" and elevations are provided on sheet C-3. The cabinets will be at the south end of the compound and will not be visible behind the 6' fence from the parking lot. Comment Number 7 Atlas has incorporated this requested change into the updated drawing set. Comment Number 8 Atlas has incorporated this requested change into the updated drawing set. Atlas has reached out to Tim Buchanan for an on -site tree inventory. Department: Engineering Development Review Comment Number 1 Atlas has incorporated this requested change into the updated drawing set. Comment Number 2 The site plan has been modified so that the site does not utilize a driveway. Maintenance workers will access the site on foot. Comment Number 3 Because the compound will only be accessed a few times a month after construction and because this is a low traffic sidewalk, Atlas believes that the swing gate will not create any issues for pedestrians. Comment Number 4 Four inches of #57 stone will be spread over geotextile fabric. Atlas has incorporated this requested change into the updated drawing set. Comment Number 5 The scales have been double checked and/or corrected in the revised drawing sets. Department: Environmental Planning April 19, 2016 Attn: Ryan Mounce Planning Department Fort Collins Planning Services 281 North College Avenue Fort Collins, CO 80524 ATLAS TOWER USA • INTERNATIONAL RE: 1127 W. Prospect Rd. Wireless Telecommunications Facility Comment Response Letter Department: Planning Services Comment Number 1 Atlas requests that this requirement be a condition of approval for a building permit because it is difficult for Atlas to get the requested letter until it has ordered a tower and Atlas typically does not order a tower until it has zoning approval. If Atlas orders a tower prior to receiving zoning approval, there is a significant risk that its investment in the tower will be lost if it is not granted zoning approval. Exhibit 1 to this letter is an email by a sales representative for Stealth Towers, a tower manufacturer, stating that towers can be built to break at any height, and an example letter stating that a tower will break, not topple. Comment Number 2 Atlas has incorporated this requested change into the updated drawing set. Comment Number 3 Atlas has checked the scales on all drawings and adjusted them if necessary. Comment Number 4 Atlas has incorporated this requested changes into the updated drawing set. Comment Number 5 The proposed tower will be made of the top quality materials and features. Species: Atlas is proposing a monopine modeled after the ponderosa pine species. Antenna Coverage: The tower's antennas will be concealed behind branches and will be camouflaged with foliage covers. The antennas will not extend beyond the tree branches, but will be within the branches and concealed. Branch Density: The monopine will have a density of at least 2.5 branches per vertical foot.