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HomeMy WebLinkAboutFile Documents.427 Rio Grande Pl.0016.2019 (2).ACBK 0016.2019.ACBK 427 Rio Grande CITY HALL ENG1 Drainage Report.425 Rio Grande Place.2019.03.pdf(30) Page:4 Note the Hydrologic Soil Group File Name: Drainage Report.425 Rio Grande Note the Hydrologic Place.2019.03.pdf and NRCS Soil type. Discuss the Soil Group and NRCS site flood zone and reference Soil type. Discuss the effective FEMA FIRM map. site flood zone and reference effective FEMA FIRM map. et to Founders Place and adjacent The site is characterized as ultrwurbao.The URMP definesthat Page:4 mal at-grade landscaping,underground parking,and a high to File Name: Drainage Report.425 Rio Grande Per URMP, please note the ort completed by CTL Thompson observed that the underlying soil ultimate receiving system. elders to a depth of 32 feet.Ground water was encountered Place.2019.03.pdf e,13 feet below the maximum anticipated excavation. Identify all waterways within the rs Per URMP,please note the ultimate receiving watershed that will influence or ending system.Identify all waterways within the be influenced bythe site Plac watershed that will influence or be influenced fill stre by the site drainage. drainage. h down Mill Street to a series of inlets at the intersection of Puppy ires wer system was installed along Rio Grande Place.This new Aspen URMP.The Low Impact Design(LIL Page:4 Include discussion of easements uide throughout the design process. File Name: Drainage Report.425 Rio Grande and tracts for drainage Place.2019.03.pdf Include discussion of purposes, including the easements and tracts for conditions and limitations for on:drainage purposes, use. including the conditions and limitations for use. omprises Rio Grande Place from Mill Street n Grande Piave The area is enrrently a rnm} Page: 5 eot. Clarif which File Name: Drainage Report.425 Rio Grande Clarify which proposed to proposed Place.2019.03.pdf improvements are done in the Rio Grande Utilities permit, and rande improvements are which are done in this Core and done in the Rio Grande Utilities Shell permit. access permit,and which are utility done in this Core and 3 Plan, Shell permit. irande Page: 5 File Name: Drainage Report.425 Rio Grande This paragraph identifies the ai11bypu="•.,,�,,.,M„a,,,o,a.,,,,,,. Place.2019.03.pdf existing Rio Grande pond facility as the receiving system for eeWe drainage at Rio Grande Place , „,„ , m;�,ameM° ;aaN�owo;�s° and Mill Street; however,the " °"° °'°'� °w only off-site utility mentioned above is the City's 48-inch CMP. Please clarify in the text where runoff is conveyed when leaving the site.Also, what is the capacity of the existing pond facility? How will proposed improvements impact inflow to this facility? IF these calculations were performed in a previous draiange study please reference them here. io south side of KIo Grande Place and conveyed Page: 5 s with the new system and Into the City of Please cite source of File Name: Drainage Report.425 Rio Grande Please cite source of information.Per the Place.2019.03.pdf information. Per the minimum minimum standards of the URMP,the standards of the URMP, the lineate downstream system from each site must er cate be able to safely pass flows from the 5 or downstream system from each arflon include and lc too-year event.Please site must be able to safely pass Include calculations at the discharge e zs pa points of the site and,at a minimum,at the flows from the 5 or 10-year and ed rai next two downstream structures to confirm continued function of the existing 100-year event. Please include y to downstream infrastructure. calculations at the discharge Water -- , the city system and not create a downstream points of the site and, at a minimum, at the next two downstream structures to confirm continued function of the existing downstream infrastructure. Page: 5 d xivrzndeve ntt,n<lua<tha„h< File Name: Drainage Report.425 Rio Grande Previous drainage studies � harinha=�pa<„y,o<o„�<ymnnfrmh<aoafia�Poxl«r- reference the drainage plan and ,�oaadrc,,hew„ereaal„>.ra<=,a�nw<er_Theydaao, Plaee.2019.03.pdf raan connect to the city no and not acute adownsirtmn report done by RFE for the Rio Previous drainage studies-reference the drainage plan Grande Utilities and APD storm and report done by RFE for the Rio Grande Utilities and n[s APD:oermerxtensionpermitting.Twoseparatedrainage extension permitting. Two analysis were completed for those two projects.the costs results of those analysis affect this permits drainage elan. separate drainage analysis were is In direct correlation with the new Aspen(kik Offers Project. completed for those two r aul<o tlty I,npro zad ac < mnro projects,the results of those e.New1consin,cdon of Ria Grende Piece will includ<iM1< a<en,prn°en'newparkne onfigut naln, analysis affect this permits ms gar<s a ana a a,par.,ry pmeuno, t,o<,r<ndella<e�°n«<LLn„ol, n >a,aomeu,���> drainage plan. Page: 5 File Name: Drainage Report.425 Rio Grande Please add text clarifying where Place.2019.03.pdf the Rio Grande pond facility, referenced later in the text, Please add text clarifying where the exists relative to the rest of the Rio Grande pond facility,referenced later in the text,exists relative to the system. rest of the system. shines with the new system along Rio Grande Place and ou tem on the west side of Rio Grande Park.The eastern half t -oposed inlet located in the entry drive of the parking deck. posed City Hall building and continues to an inlet on the sc Page: 6 File Name: Drainage Report.425 Rio Grande Clarify where this outfall is and Place.2019.03.pdf how it relates to the rest of the stormwater infrastructure. Clarify where this outfall is and how it relates to the rest of the stormwater infrastructure. existing,in the development area.The figure I conveyance to that basin's collecting d existing curb inlets located along Rio Ind storm sewer that!lows to the Rio Grande se Rio Grande Building,will be collected ions drainage studies,enters Basin I I from existing Page: 6 kin County Buildings.The existing parking structure flow File Name: Drainage Report.425 Rio Grande Clarify which basins refer to the °ssagccyet.This nnwls split between one snggcrpipe 6 inch and 8 inch pipes from the iginagesysteminthcentrydriveoftheparkinggarage Plaee.2019.03.pdf p p e system in the parking lot to the west of the proposed top of the parking garage Clarify which basins refer to the 6 inch and (galena plaza). Verify with the 8 inch pipes from the top of the parking garage(galena plaza).Verify with the plumbing plans, and ensure the plumbing plans,and ensure the drainage basins align. drainage basins align. wilding and the Page: 6 Rio Grande storm File Name: Drainage Report.425 Rio Grande Clarify where the outfall with :lndedin the WQCV 4.82 cf of flow is and how it Place.2019.03.pdf lot on the west side relates to the rest of the avers Clarify where the outfall with 4.82 stormwater infrastructure. )o-ye;cf of flow is and how it relates to istem the rest of the stormwater )0-Ye,infrastructure. 11 from exisung marking structure flow veen one 6-inch pipe the parking garage e in the center. Over flow from the swale is co Page: 6 flow pipe will be able to convey any overflow File Name: Drainage Report.425 Rio Grande What previous drainage study lional flows entering the storm system from cxi Place.2019.03.pdf determines the flow rate of basin cubic feet per second,determined from 11? Include title and date. n sew°What previous drainage study at Pitkin calcul determines the flow rate of a of 26,880 basin 11?Include title and date. ing the a rroposed drai one 8-inch pipe entering the proposed drainage offices building. >07o Page: 8 i9% File Name: Drainage Report.425 Rio Grande The plumbing plans show basin 00% Place.2019.03.pdf 5 routed to two separate 00% The plumbing plans show basin locations. See sheet P1.02. 5 routed to two separate >-3% locations.See sheet P1.02. Divide the basins to correlate Divide the basins to correlate 75% with the plumbing plans and with the plumbing plans and 00% daylight location.Is the east discharge point shown on P1.02 daylight location. Is the east 00% DIPg garage r m?existing 8" discharge point shown on P1.02 38% drain? g >6% being tied in to the existing 8" 00% DIP garage drain? Page: 8 Instead of taking a portion of The table below shows the required WQCV for File Name: Drainage Report.425 Rio Grande basins directly related with the Aspen City Office Place.2019.03.pdf each basin, divide the basins so These are a portion of Basins 2 and 4,Basin 5,II it is clear what is routed to the Insteadottakingaportionof BMPs,which basins are treated, each basin divide the basins so 1\_ it is clear what is routed to the and which are not. BMPs,which basins are treated,and which are not. Aspen City Offices Preliminary Drainage Report Page: 9 File Name: Drainage Report.425 Rio Grande Total basin areas listed in this Place.2019.03.pdf table do not match the values denoted on the drainage plan on sheet C17 for basins 2.1 and 6-11. It appears that some w, � . values may have been offset because Basin 5 is missing. Please confirm basin areas and update WQCV calculations as :z, - ,.Z, necessary. w a urar� Page: 9 Mutes so the smallest valid File Name: Drainage Report.425 Rio Grande Please attach TOC calculations in Table 2.2 as 0.77 inch to validate use of 5 minutes for nches per hour,for Place.2019.03.pdf all basins. pent Please attach TOC calculations to validate use of 5 minutes for all basins. ercen icient(C)was then I to determine the peak 4.1 14588.00 14588.00 1 Page: 9 4.2 9195.00 7101.00 - File Name: Drainage Report.425 Rio Grande Include Basin 5 in WQCV 18944.00 13593.00 - Place.2019.03.pdf Storage Table. Dived Basin 5 to 888.00 888.00 ] p 8 1476.00 1476.00 correlate to plumbing plans. 9 10798.00 7600.00 10 40.00 5882.00 11 84 .00 8486.00 Include Basin 5 in WQCV Storage Table.Dived Basin 5 to correlate to plumbing plans. T�r F_. dforeach intensity was calculated using a Time of Page: 10 File Name: Drainage Report.425 Rio Grande Several of the runoff coefficients Place.2019.03.pdf appear incorrect for the listed se.e�or�etioK�eR,,e 'RMa„�Re ro ,=,ed imperviousness and HSG B per a=;e: URMP Figure 3.3. See Basins 1, °eonaa ame���a'e's ' r "'PBSWP 3, etc. Please note that basins with the same imperviousness ", .,m, (ex. 100%should have the same • C value). See 100-year calc table as well. 0.150 6 3.96 0.09 Page: 10 0.150 7 3.96 0.12 File Name: Drainage Report.425 Rio Grande Why is time of concentration 0.150 8 3.27 0.20 Place.2019.03.pdf larger for these basins(9-11)for the 10 year only? Please confirm Why is time of concentration larger TOC and intensity values. for these basins(9-11)for the 10 year only?Please confirm TOC and intensity values. Page: 12 s.° 10 File Name: Drainage Report.425 Rio Grande Please clarify in text which pipes Place.2019.03.pdf are shown in which plan set(Rio Grande Place vs. City Hall) Please clarify in text which pipes are shown in which plan set(Rio Grande Place vs.City Hall) Page: 12 File Name: Drainage Report.425 Rio Grande Look closely at Type C inlets- Place.2019.03.pdf Don't want them near pedestrian ape C inlets. A capacity chart for Type C walkways as they are not Look closely at Type inlets- aesthetically pleasing. Don't want them near pedestrian walkways as they are not aesthetically pleasing. Design Flow Rate odes 18.68 Page: 13 pipe size based on slope,roughness File Name: Drainage Report.425 Rio Grande Show the pipes are sized so the for design purposes except for pipe Place.2019.03.pdf full runoff rate only occupies ans for actual pipe slopes. 80D/o of the pipes. Show the pipes are sized so the full runoff rate only occupies 80%of the pipes. inter Required Pipe Proposed Pipe Diameter Diameter ilaia Dr.,lin) Dp,n(in) 21.70 24.0 nds wile.=oo, ��n°re,ty°r�ru�n,,a.rnnoraren.;nld„na„nrm Page: 15 File Name: Drainage Report.425 Rio Grande Address each BMP individually. Place.2019.03.pdf Per URMP, provide volumes and ty°�°�antlBaai 6�°9�°yea, °° release rates and sizing wincm capacity of pond wnm mmoaaa the wQcv pro.;a=n in the minimum °'".m" calculations for each detention Adtlress each BMP rates red.car wiaai See Y= eachetansreleaseratesantl sizingcalculations ovenaetarntl outletworks.newlthedescaptlonofMe facility, along with a description overflow of the overflow and outlet works. rry,,nm<,50sawunar8s.0 P:wn.ra°anw `seam a o,o rs ailorma�gm.oawaurqunury aoiwna.rna,nma below nno�u ,one mra�atywm. ape area or me teary vroces paramg,or has oven oengnea to store mt page: 15 verffow into the storm system.A drywett is required due to the space Please elaborate on the space er quality volume required.According the URMP,when adrywell is File Name: Drainage Report.425 Rio Grande 1°f the required water quality volume.The table below shows the Place.2019.03.pdf limitations to justify why the space limitations prevent using Please elaborate on the space limitations t� justify why the space limitations prevent other more-favorable BMPs. It using other more-favorable BMPs.It appears there is more than appears there is more than enough room to install a bioretention pond in the landscape enough room to install a island. bioretention pond in the landscape island. ppcn wrtn no Lily sluices riuject. Page: 15 shown in the table in section 3.2. Bio File Name: Drainage Report.425 Rio Grande Provide sizing calculations here. ha in accordance the City of Place.2019.03.pdf Section 3.2 does not clearly d to prevent side sl pe erosion and show what areas drain to what BMPs. Provide sizing calculations )0-y e, here.Section 3.2 does not clearly show what areas drain nd cu to what BMPs. 3acity to convey the maximum flow. cony( Page: 15 File Name: Drainage Report.425 Rio Grande Detention is not required int he 6.3: Place.2019.03.pdf Aspen Mountain Drainage Basin, The or in this project. Why is a Detention is not required int he -Ioo-} drywell being provided to store Aspen Mountain Drainage Basin,or in this project.Why is limit the 100 year storm? a drywell being provided to store the 100 year stone? used volur Aspen Prelim (ftt) (ft) Page: 16 226.3 File Name: Drainage Report.425 Rio Grande According to the above section e.In According to the above Place.2019.03.pdf the required WQCV for basin 2.3 appe section the required WQCV (parking lot)is 131.3 cf and for basin 2.3(parking lot)is basin 2.2(transformer area)is 131.3 of and basin 2.2 19.6 cf. Where does 226.3 come (transformer area)is 19.6 cf. from? Where does 226.3 come from? lent approach.Diu swabs to the maximum extent "'I'«m' Page: 16 File Name: Drainage Report.425 Rio Grande Include sizing calculations and „e,,Rae :: a°°1POe Place.2019.03.pdf WQCV treatment volumes of the bioswales. The swales should be Include sizing calculations and WDCV treatment volumes turned into bioretention areas of the bioswales.The swales should be turned Into bioretention areas with tiered steps similar to what is with tiered steps similar to what constructed at Ruby Park.Demonstrate the bioretention pond adjacent to Rio Grande has enough capacity to treat all runoff from south side of Rio Grande. is constructed at Ruby Park. Demonstrate the bioretention pond adjacent to Rio Grande has enough capacity to treat all runoff from south side of Rio Grande. Drywell Basins Diameter Store( Page: 16 How is basin 2.2 routed to the (Name) (4) (ft) File Name: Drainage Report.425 Rio Grande Drywell l 2.3 4 Place.2019.03.pdf drywell?On the plans it appears to bypass the drywell in pipe 1.8. The hnttn of the rlrvwn will How is basin 2.2 routed to the atior drywell?On the plans it appears to bypass the drywell in pipe 1.8. Ma 7.1 13io Swales nsider drilling additional perforations in the barrel.If t File Name: Drainage Report.425 Rio Grande The appendices are not attached ,placed. to the drainage report. Please Place.2019.03.pdf provide. .ces / The appendices are not ` attached to the drainage report. Please provide. rapacity Reports Capacity Chart Plan Set.Arch.425 Rio Grande Place.2019.03.pdf(2) ✓I✓ \ Page:A2.14- UPPER LEVEL PARTIAL FLOOR PLAN Include this drainage in the AREA B Include this drainage in the File Name: Plan Set.Arch.425 Rio Grande Place.2019.03.pdf drainage plan. How large is the drainage plan.How large is the canopy? Is water quality canopy?Is water quality pY• q Y accounted for in the planting accounted for in the planting area. area. GANOP DRAIN TO I DAYLIGHT INTO PLANTING ' Page:A2.15-UPPER LEVEL PARTIAL FLOOR PLAN Is this slot drain shown on the AREA C civil plans. Where does it drain SLOT DRAIN File Name: Plan Set.Arch.425 Rio Grande Place.2019.03.pdf to? ill / Is this slot drain shownthe civil plans.Where doesit drain to? Plan Set.Civil.425 Rio Grande Place.2019.03.pdf(109) Page: CO COVER SHEET Provide Excavation Stabilization File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Plan if the basement is going to be constructed. Provide Excavation Stabilization Plan if the basement is going to be constructed. _ Page: CO-COVER SHEET / File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf At one point in time,there were discussions that the Galena Plaza pavers would be fixed as a component of the New City Hall project and permitting. Let's discussions Ihaf the Galena Plaza pavers woultl be Ixetl as „a„aro,e�a doer rc;'" clearly lay out the plan for this Lel's clearly lay oul the plan for area. ,tom Page: C2- EXISTING CONDITIONS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Is this existing pipe rerouted internally?Show how. Does it go to the east or west garage roof drainage pipe? T7IIlt .t71.F555 : Page: C3- DEMOLITION PLAN Does not match plan File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Does not match plan zo Page: C3- DEMOLITION PLAN Verify if any utilities will acme File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Verify if any utilities will be 0000 be abandoned in abandoned in place. If so, place.If so,include an corvc abandonment plan, soEx include an abandonment plan, otherwise it is AREA INLET understood everything ASPH, otherwise it is understood is removal. ASPH everything is removal. SNOW GUILD REMOVE TE RAM'MANHOLE E 'hK\><,—* LEMOVEF.15'RCP or AToN=aA Page: C6 PARKING LOT P&P 1 Please label storm line on .R BORRP EUA File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf parking P&P sheets. Show ACCESSIBLE PAVER adequate bury depth. 7,1 ease label stormPaovcp k P&P 1cs213iaa parking E _ aA,a eeta.ebur adequate bury depth. vo Page: C6- PARKING LOT P&P 1 e pavers a pa pervious v r File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Theseithin the driplineious the existing I 0TA.2ese.8A trees. Parks Dept needs to Thasa parvloua pavars am approve this installation. Show wunm ma eripima or me exianns area=PaMaoep'^ee°as Parks the excavation depth and pprove lM1is lnslallation. Parks 1ne excavation depin and pf paverin allatipn extents of paver installation. I /l Page: C6- PARKING LOT P&P 1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show existing trees on the corner of Mill St and the Bank entrance. Show existing trees 1 on the comer of Mill �V St and the Bank I � Page: C6- PARKING LOT P&P 1 Show the extents of the 's File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf ,.".-w ���io / mountable curb for emergency 7,2 �' �, vehicle access. ".:...7...16::::6:=, - _.....i. --41001, i..,.....i.,,, ..,..,. _. Page: C6- PARKING LOT P&P 1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide mountable curb or other Provide mountable curb or delineation on parking lot side. other delineation on parking lot side.Coordinate with Fire Dept. Coordinate with Fire Dept. STA.20+29.99 PARKING LOT IDEWALK ELEV. EL. 7885.77 —2.987 CATCH coo Page: C6- PARKING LOT P&P 1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf What keeps people from What keepspeople�i driving/parking on the sidewalk o°- from driving/parking on Mill Street? Provide some I on the sidewalk on "ter, IV treet?Frovide type of delineation. Perhaps curb some type of _ delineation.Perhaps perhaps collapsible bollards. e. curb perhaps _ collapsible bollards. ._ Coordinate with Fire Dept for rI- Coordinate with Fire 1 Dept for emergency emergency access. .PILL C&G ■ Page: C6- PARKING LOT P&P 1 The landscape plans call out qi File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf I Grasscrete and mountable curb. • Coordinate plans and show Graslscreteentlmouneblea, %� grasscrete on Civil Sheets if s gym.c^^mmare clans it Sheets brece needed per Fire Dept. tl^� ,recap.. I. \rr' 1 N Page: C7- PARKING LOT P&P 2 r ' — Provide stop sign and stop bar File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf for parking lot exit to Rio Grande '"-" --- ——-Srovitlestop sign and ---- top bar for parking —_ -�eei. lot exit to Rio Grande T/ / / o"o Page: C7- PARKING LOT P&P 2 -,r <F x^��; Provide clarification in the form o°,rota � ip n File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdfo " at,�: of cross sections or spot �� i' E elevations on the transition of iv- the roadway from draining to the north,to draining to the south. 1/ / �\ I_ +13.10 Page: C7- PARKING LOT P&P 2 29.04.R File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Per Engienering Standards the LE 455 minimum parking stall width for LL CSEG 1894.55 a parking lot is 8.5'. Refer to \ section 4.4.1 of the Engineering Design Standards. Per Engienering Standards the 21+,2.93 m parking stall width for -- a parking lot is 8.5'.Refer to 38.05'R section 44.,of the Engineering Design Standards. F Page: C7- PARKING LOT P&P 2 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide one way signage for the parking lot. S0/S TA.21+83 0/S 12.0 _ NEW CURB OPEN Provide one way signage for DRAINAGE P the parking lot. STA.21+l o 0/S 12 PC ELEV=78I // Page: C7- PARKING LOT P&P 2 // File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Please provide spot elevations Please provide spot and cross section for median elevations and cross Swale. section for median klgowsii 11541 IF E Page: C7- PARKING LOT P&P 2 I II File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf This shaded area of the parking lot does not receive water quality 8TA.22+,51 L aol one par^ng treatment. Provide a detailed Tb,„babadare % °rd°e=i°iagsewater drainage basin map that 0/5 21.51'L I uaiiry o-eacmen�.Pr°aihea , RP Cetai�eh hrainage has=map , °a'a'b saeswbe'ea'I'°°°" addresses where all runoff is r°her°,eh,°a aMP addreee R1000' / 11 In rbe hrainagereponsotbere a,tha routed. If areas are not able to STA.2 87 °3soc°tl`lobe proedeboul 0/S,e.ag'L ° bBOe a be routed to a BMP address it in ELEV-7880.74 `; i A the drainage report so there is '/, no discussion at the conclusion ' of the project about what should have been done. Eflr v Page: C8- PARKING LOT P&P 3 D File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf It appears concentrated flows are being spread out in this area. It appears STA.30+16 Does a valley pan make sense? concentrated flows o/s .o'L / EL are being spread out EGINEV=ILL8C&G C&G in this area.Does a valley pan make sense? — — % STA.30+19.78 ar n n�s7aaa0 Rj\ Page: C8- PARKING LOT P&P 3 ST Call out signage for a Car to Go /3G+7..27 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf ELEV Call out signage for a Car to Go parking spot. parking spot. E E E . \ E Page: C8- PARKING LOT P&P 3 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide conduit for a future electric vehicle charging station in the parking lot. E E E '.� E E E EI o ---.-_-.-- C&G I SPILL \\ — i I Page: C9- PARKING LOT P&P 4 ��/ _� File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Where is the transition from the slope going south to the slope going north? Provide spot Where is the transition from the �\ slopegoingsoutM1totM1eslope I elevations to clearly show the el ing n°rIM17 Pr°vitle spot °cleatlyeM1nwtM1e transition. Show there is not a tra�al2on.SM1°wtM1ere la not a "atep°"M1atmay°aaae flat spot that may cause ponding pontling issues in the ramp. ' TO CATCH C&G STA.31+26.26 issues in the ramp. ELEV=7886.57 �\�, ANGLED PARKING LOT ALIGNMENT I; G LOT ALIGNMENT SAT.M ALIGNMENT 507R96 I,', — - '''. , 3 e ,l 1 \ Page: C10- MILL STREET SIDEWALK P&P Clearly delineate where there is - 3-- 1` / . File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf mountable curb and where there is barrier. 09° Page: C10- MILL STREET SIDEWALK P&P File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Verify sidewalk slope does not Verify sidewalk slope does not exceed roadway slope. exceed roadway slope. I/ 7.44% - Page: C10- MILL STREET SIDEWALK P&P File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf This way is not north. This way is not north. ��7 Page: C10- MILL STREET SIDEWALK P&P / —1—H File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf The Mill St Complete Streets d�o � Plan calls for Silva Cells all along the 4'buffer and `°°'M'° °° °°' underneath the sidewalk. With r the existing trees and storm \ 7 , - I infrastructure Silva Cells are not appropriate the entire length. \ , 1--- .':' ',,/' '_,_ Coordinate with Parks and Engineering Depts on the .._ .... expectation for trees and Silva Cells along the landscape buffer. Page: C10- MILL STREET SIDEWALK P&P Is the whole snowmelted File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf walkway in front of the bank 515.51,3.10 proposed for replacement? 0/5 6.78'L TIE To E%IST Include this in the mechanical - plans. STA.51 T- 0/5 3.0 ELEV=78 0.25 � r , - /Niasao88 25 �\ Page: C12-GALENA PLAZA 1 What type of inlets are being E2627592.12 -�, File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf used in galena Plaza? What type of inlets are being used in galena Plaza? 8 — — Page: C12-GALENA PLAZA 1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf It is unclear how surface drainage from all of Galena It is unclear how surface Plaza reaches the storm sewer drainage from all of Galena Plaza reaches the storm sewer system. Please coordinate with system.Please coordinate with plumbing plans. Show on a plumbing plans.Show on a drainage basin map where all drainage basin map where all runoff is routed. runoff is routed. Page: C13-GALENA PLAZA 2 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Is this a 6"flush curb with trench drain? 6" CIJRI3 Is this a 6'[lush curb with trench drain? Page: C13 GALENA PLAZA 2 Show the grading. How does the File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf staircase tie in to the surrounding grade from the Rio Utilities permit? Provide spot elevations. Page: C13-GALENA PLAZA 2 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Please provide trench drain detail and inverts Please provide trench drain detail and inverts eL ey ° Page: C13-GALENA PLAZA 2 — — File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf On the drainage basin map — — i _ show where this trench drain is P — — routed to. 7910_00 4'TRENCH DRAIN NlA900 92 N0t. E2N27701.08 E2627701-38 1 • mops PAVERSt Page: C13-GALENA PLAZA 2 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf The mechanical plans show these walkways as snowmelted. Provide a paver detail for PCC snowmelted pervious pavers on E26216 top of the greenroof and garage membrane. Show the extents of snowmelt on the civil plans. Page: C13 GALENA PLAZA 2 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide detail for capping existing inlets. EXISTING IN Provide detail for capping existing inlets. 9H.•.•, Page: C15-GALENA PLAZA 4 I Q File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf These plans aren't showing the `� grand staircase. W 1 CHARLES CUNNIFFE ARCHITECTS 'II m===,=m=n---. „iv Page: C15 GALENA PLAZA 4 Show new inlets that will replace STING INLET TO EE CAPPED File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf capped inlets. Differentiate izz— which inlets are new,which are existing, and which are re====::= �9.;t"" abandoned. BENCH Page: C16-GALENA PLAZA SUB SURFACE DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Are the roof drains on the existing plaza being altered to accommodate the landscaping ace the roof drains on the plans?Align landscape, existing plaza being altered to e modate the landscaping plumbing, and civil plans. plans?Allan landscape, plumbing,and civil plans. Page: C16-GALENA PLAZA SUB SURFACE DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf These inlets do not align with the roof drains shown on sheet PT INLET AT LOW POINT CUP.) P1.03 of the plumbing plans. Tne=e e.=dooa9w,h -- - mo roor aem::howo zo9 , P1.03 of na ommemg plans. ia�:.. p„ 07909.17 ]9095a i Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Identify flows entering and \ leaving the site, as well as general drainage patterns. V Identify flows entering \ and leaving the site,as well as general drainage patterns. Page: C17- DRAINAGE BASINS Call out which BMP treats which File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf drainage basin. Call out which BMP treats which drainage basin. Call out BMP available volume Call out BMP available volume and and required volume from the required volume from the respective drainage basin. respective drainage basin. Page: C17- DRAINAGE BASINS Verify there are no changes to File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf the parking garage drain routing, and that all drains from the Verify there are no changes to the parking garage drain routing,and that all drains from the parking parking garage are routed to a garage are routed to a new sand of separator and the sanitary system.No parking garage drains can new sand oil separator and the drain to the storm system. sanitary system. No parking garage drains can drain to the storm system. - 7 .. Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Label area of each basin in acres. ________/_ — - - — V,,'aa°seam _7 i Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Label property lines and Label property lines easements,with purposes and easements,with noted. purposes noted. / Page: C17 DRAINAGE BASINS Where are basins 2.1 and 4.1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf routed?2.1 to the west 4"ductile / and 4.1 to the east 8"ductile? \ ` The landscape plans show drains capped, and others added.There are no plumbing c % plans that show how these °agPS,re��a _ � changes are routed. Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide an existing and proposed drainage basin map. Provide an existing and proposed drainage basin map. Page: C17- DRAINAGE BASINS Label buildings /i/ File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf el buildin l / a " Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Divide up drainage basin 5 to accurately show what drains to the bioretention pond, and what drains to the east garage drain 8"ductile pipe. Divide up drainage basin 5 to accurately show what drains to the bioretention pond,and what drains to the east garage drain 8"ductile pipe. I 9 6240.00 0.00 0.00% 0.350 Page: C17- DRAINAGE BASINS Update tablesper drainage 10 8486.00 0.00 0.00% 0.350 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf p g 11 18138.00 0.00 0.00% 0.350 report comments. Update tables per drainage report comments. T Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf - Display existing and proposed contours at 1-foot maximum -Display existing and proposed contours at 1-foot maximum intervals.The contours shall extend a intervals. The contours shall minimum of 100 feet beyond the property lines. \-Provide an overlay of the proposed landscape extend a minimum of 100 feet plan, beyond the property lines. -Display proposed drainage features(storm sewer, manholes,swales.etc.) —Provide an overlay of the \ proposed landscape plan. r -Display proposed drainage features(storm sewer, manholes, swales, etc.) Page: C17- DRAINAGE BASINS i File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf All of the library drainage goes to o a vault in the garage entrance alley and then ties in to the parking garage ductile pipe.This needs to be shown on the drainage basin map and accounted for in the drainage °°�ea,anaee^a=,°ma°ana I plan. /o ,aro,°maa.aa,/ ,"/ -or Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Break up basin 2.3 so you can it , see how much area is treated by pervious pavers and how much d'� -/ �( area is treated by the bio swale ,••�^ - "`°'° \ and drywell. ..a ,, °, °na iiiii, Is it possible to treat with just the island bioretention area and not a drywell? I Page: C17- DRAINAGE BASINS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Ensure drainage basin map correlates with the plumbing Ensure drainage basin map correlates with the plans. plumbing plans. li, , .4111/i Page: C18- PARKING LOT DRAINAGE �„ There appears to be more than �.„ereapp arse„emore,„an File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf 1' enoa9„area,nprov;de enough area to provide atlequate volume by turning t„e /, landscape island into a adequate volume by turning the blore,emlon pona,ana not °°"='ogee weILT„e landscape island into a Impervious area o„„e paMN9 s 8294 sf,this correlates agwa��a„here;,„a:, bioretention pond, and not i side slopes from,„e,op back of / curb,„ere is available volume n me 92s analane.wn„as• 4 utilizing a drywall. The A p7 eaf„anareaorasssrwould ,,a be needed venw;,b,„e impervious area of the parking gXudinalslepe Meseseems /_) ` ble T„ebore,enronaraa lot is 8294 sf, this correlates to a �Ba la be a,eppee.Lera e'anuea. WQCV of 178 cf.With 3:1 side `"- slopes from the top back of curb there is available volume in the 925 sf island. With a 6"depth an area of 355 sf would be needed. Even with the longitudinal slope these seems feasible.The bioretention area could be stepped. Let's discuss. Page: C18- PARKING LOT DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Where is this existing pipe Where is this existing pipe underneath the transformer underneath the transformer rerouted?To the east or west rerouted?To the east or west e pipe? garage pipe? garage p p 7885.92 `` / — - Page: C18- PARKING LOT DRAINAGE �,> File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf In the drainage report address the use of a drywell with known groundwater. AMU �, In a eeramagerepo�aaaree n �., . the t e of,a drywell with knew grountlwater Vi � ��,. ECCENTRIC CONE W/ SLOTTED RIM Page: C18- PARKING LOT DRAINAGE STA: 302+12.05 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide detail of the slotted rim. OFF: 0.00' This is a pedestrian area, the slots need to be ADA compliant. Provide detail of the slotted rim. This is a pedestrian area,the slots need to be ADA compliant. Page: C18- PARKING LOT DRAINAGE _„�Inna_�l- File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show HGL and EGL in storm `�e oeCAS SERviCE sewer profile -IGL and EGL in sto Page: C18- PARKING LOT DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Clarify this is an abandoned line. i Pipe needs to be removed. Not abandoned in place. ' 4161P*, _ ''.,,, N. 411r in'iN 167# 4 ;'-' Page: C18- PARKING LOT DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Do not see this in Neenah catalog. Please provide detail. Do not see this in PEN!.11 Neenah catalog. Please provide detail. LID /'a, BB533 r Page: C18 PARKING LOT DRAINAGE Because drainage from the File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf library and Galena plaza is tied 65 . \ NEw to the new system,the library ECCE Because drainage from the STA: and galena plaza area needs to libraryhe new Galena eli is tied OFF: be taken in to account in the to the new system,the needs and galena plaza area needs to be taken in to account in the „, drainage plan and drainage drainage plan and drainage report.Include this in the report. Include this in the drainage basins and analysis drainage basins and analysis Page: C18- PARKING LOT DRAINAGE/ Check offset for drywall. NEENAH FOUNDRY +� File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf 26-4 CURB OPENING fERT ELEV.= 7880.59 +� YWELL 1 -ED TOP Check offset for ]+13.86 dryweff 7863.68 7875.68 /7 +/ + V Page: C18- PARKING LOT DRAINAGE Show that with a slope of 1%the w File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf i flow velocity is not less than 2 fps. Show that with a slope of1%the now velocity r not Tess than 2fps___— / —\ 39.81' OF 15" RCP 0 1.00% 1.1 I Page: C18- PARKING LOT DRAINAGE ���w t ,� ` File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Three manholes in the llkiiiii .N . landscape island takes away from the aesthetics. Is there a way to reduce the number oflitioi. M smanholes?This could be I . accomplished by removing the f „• i -� drywell and realigning the pipe to I oo, � fr one manhole. I N N. x Page: C18- PARKING LOT DRAINAGE Please provide profile for 12" � File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf outfall from drywell. N \Please provide profile A' for 12"outfall from adryell i,,- N Page: C18- PARKING LOT DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Is the drywell overflow pipe `13necessary?The drywell loses N 4.5'of depth for available storage by incorporating the overflow pipe. '' ,IN FEET, Page: C18- PARKING LOT DRAINAGE I inch=10 ft. File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show the garage ductile pipe tying in to the manhole. Call out .7\\ invert elevations. show me garage aaane viNe Q 4 4pNiv'n ty gin to tM1e manM1ole.Cell out evationa. � 85330. 1.0��88533 / �.•.+.' INLET 1.9 Page: C18- PARKING LOT DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Call out there is 3'clear distance on all sides of the transformer. 10'in the front. Call out vault T885.92 -Call out here is 3'clear dimensions. distance on all sitles of the transformer-10 In the front Call out vault tlimensions. 1 ,-„>,/ ,,,› !4 3y. 0Page: C19-CITY HALL SIDEWALK DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Plumbing plan P1.02 has a pipe daylighting in this vicinity. Is that _ .`__ __ the 8" PVC shown?Verify the PONDINGV°LUNE,27 CF civil plans correlate with the 12 „n°PAsr I I plumbing plans and clarify on the civil sheets where to reference PIumPM Plan P1.02 tylrgg e^'lea' '°BEYOND LINER BUILDING the plumbing plans. a�o Ass, Page: C19-CITY HALL SIDEWALK DRAINAGE Due to the close proximity to the Tp8 e6° f® File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf " umil building and the pond liner, I, AA4.o711 provide an underdrain in the —xEL--XEL---R J!___gEL,-__AEL bioretention area. D )894.15 s v Y--_ v v v ' L a^1711 ii 9j,, Page: C19-CITY HALL SIDEWALK DRAINAGE snovnnettetl area must File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf All snowmelted areas must have M1ava propx bent„dreinam proper trench drains to avoid a�l'I`Inga`�e°n°eace' -'E"ns icing a the unheated transition. :'" �anafian.SM1ew a>nan�of 1— wmeltanlM1ecivi""" - nxf epalrWucwture bleavoitl ion9. —nc o Show extents of snowmelt on the civil sheets and provide r . . , ; , - drainage infrastructure to avoid icing. OUT C PIPE 4.0% INV.OU^ ,7982.5 __ -- - i Page: C19-CITY HALL SIDEWALK DRAINAGE_ File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide detail and cross sections _ _ -'\R- for bioretention pond with planting media,filter material ae etc. BEYOND auiLc rooieaixr Provide detail and cross sections for bioretention pond witM1Y _ - ie%'" planting media,filter l9' material etc. ° Page: C19-CITY HALL SIDEWALK DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show how the existing DIP -if \ garage pipe is connected to the new manhole. \_,41114 lit -= Show how the a existing DIP garage pipe is connected to e , \ the new manhole. \r\\ Page: C19-CITY HALL SIDEWALK DRAINAGE _ File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf What are the extents of the new 7c c pipe to be installed with the _uw�— removal of the temporary E E—!. —E- E manhole? Remind me why there ,Wk_—— are two manholes side by side. NEW PIPE CONN TED ,,, nn n A Page: C19-CITY HALL SIDEWALK DRAINAGE Ro. File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show applicable EN easement/property line/ROW Show applicable boundaries and water surface easement/property line/ROW boundaries elevations such as 100-year S-CTI'*----------------and water surface 100-year as storm depth and freeboard,TYP 100-year storm depth and freeboard,TYP of of drainage cross-sectional drainage views. cross-sectional views. EXISTINGV INLET TO BE.MOVED AND GROUT T( Page: C19-CITY HALL SIDEWALK DRAINAGE Let's discuss the manhole grated INLET TO DE SET IN EXSSTINO LOCATION AND File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf ,ge,3z inlets.As this will be a highly visible, lots of pedestrians area Lets discuss the manhole we want the inlets to be \ grated Inlets.As this will be highly visible,lots of __ aesthetically pleasing. 11 67 petlesirlans area we wen[the _ Inle�s to be aesthetically s- --...W-_--__-_X= Pleasing. - _- \\�\ / 8'CONC.S/W Page: C19-CITY HALL SIDEWALK DRAINAGE Plan view calls out 6" DIP from File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Garage, not PVC. There's also some discrepancy if it is a 6" DIP if U Plan view calls out 6"DIP from or 8". Please verify. a tr Garage,not PVC.There's also a a, some discrepancy if it is a 6" _ DIP or 8".Please verify. o �n od ro gM n� n r � F u ? O 7890 Page: C19-CITY HALL SIDEWALK DRAINAGE - , — __ — File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Sheet P1.01 shows a pipe - _ - - _ _ — — — — exiting here. Is this the Galena lkEX. MANHOLE 1.5 Plaza routing that ties to the I (W): 7880.51 8" PVC manhole? Show this connection, (SE): 7878.06 6" DIP \ OUT: 7878.0 and reference the plumbing Sheet P1.01 shows a pipe exiting here.is this the Galena plans for continuation. Plaza routing that ties to the manhole?Show this connection,and reference the plumbing plans for continuation. a-� Page: C19-CITY HALL SIDEWALK DRAINAGE Verify and call out the slope e,�afldeafl° the File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf VdOesn°,e%Geed3I does not exceed 3:1. SEE LANDSCAPE _30"G_3.25' '29' 8'CONC. C& 0E5 SHOP 4E) 2.00% r 8.33% ; I iii iii hill iii iii i egos e, Page: C19-CITY HALL SIDEWALK DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf What is this PVC pipe? Is it to eLE RUr_/-4" get the downspouts from the PVC PF =V�9825 plumbing plans over to the a s bioretetion pond? Please clarify.- - _ __ Is this the only pipe to daylight in the pond'? Does it take drainage ,ty from the entire building'? 1 1 I I I Page: C19-CITY HALL SIDEWALK DRAINAGE ROADSIDE SWALN File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf This should be a bioretention area not a roadside swale. Provide flat area and grade break walls where necessary. ad=ldl°swat'°°" Provide underdrain. Refer to the Prwitle fla area antl grade a o�me��aemam�aere�o�be Ruby Park bioretention area Ruby Park bi°relenli°n area beWBP°neb°=Pa °g°°d between the bus parking and the de alley ae an e,amNe. alley as an example. Page: C19-CITY HALL SIDEWALK DRAINAGE � � This storm manhole and pipe 1 File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf I 1-1 were shifted out of the drive entrance in the Rio Utilities permit. Update these sheets = fly ^e"'-" accordingly. RIM ELF/78.88i5 Page: C20- RIO GRANDE BUILDING DRAINAGE "' File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Does the entire Rio Grande Building drain to this roof drain? aoPosEo "E. Is any modifying or retrofitting RIO GRANGE aim ELEV 78888 BUILDING required on the Rio Grande F.E=7889.00 Building?There are no plumbing plans provided for Tasters. germ ",o�.dedb, i Page: C20- RIO GRANDE BUILDING DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Clarify how the trash enclosure ties in to the sidewalk. Is the area covered? Is it sunken like a. • ifs current configuration'? Provide spot elevations so it is clear how it drains. I L,:. Page: C20- RIO GRANDE BUILDING DRAINAGE How does any runoff get to the File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf I; P upper part of the bioretention Jarea? No downspouts are shown routed to the upper bio pond. 7 .40� uteat o6d2t:erm• Pond Page: C20- RIO GRANDE BUILDING DRAINAGE RM°ELE�°881N.8� File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf What is the volume of the 788'587.V 'Y885.87 Tasters bioretention pond?What 1222 is the required volume? LANDSCAPE AREA T. BE LINED WITH 30 MIL PCV(S• TYPICAL SECTION THIS SHEET) What is the volume of the PROPOSED Tasters bioretention pond? :7 What is the required volume? RIC E Page: C20- RIO GRANDE BUILDING DRAINAGE Label inlet. COA does not want 21 0,3, File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf type C inlets in highly visible .._-.Q&_-.-.-o.,:„, — — areas. V-788601 7833 , 'sea se -- y y Page: C20- RIO GRANDE BUILDING DRAINAGE File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Show the sidewalk and Rio Grande Improvemetns. Show how this plan ties in to the =1,74mrrzzow sidewalk. ,*zee os 1 I . / 4 Page: C20- RIO GRANDE BUILDING DRAINAGE Call out daylight invert for the // . '''°° ,D.97 Lam"- File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf pipe that carries flow from the f 6"PVC q / , ti° deck. y J886.. ' y -V PROPOSED 4"INLET .V r,, EV.7888.87 .874, Call ouldayligft fr he pipe 12.22' T'hr.'rries floe from(M1e tleGc. LANDSCAPE AREA TO BE LINED NEW TRANSFORMER/ I Page: C21 - UTILITY PLAN ATE SEE MECHANICAL PLANS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf An easement is required for the proposed transformers. Confirm compliance with Electrical standards, 3'clear on sides and An easement is required for the backs,ten feet and truck access proposed transformers.Confirm compliance with Electrical on the front. 7'vault. standards,3'clear on sides and backs,ten feet and truck access on the front.7'vault. SEWER SERVICE TO BUILDING FROM STUB—OUT ELEVATION Page: C21 - UTILITY PLAN i SERVICE TO BUI DING FROM STUB—OUT File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Clearly call out the following in regards to all proposed water Clearly call out the following in regards to service lines: line size, line type, all proposed water alignment in plan view,valve service lines:line size, line type,alignment in configuration including curb stop plan view,valve configuration including if applicable,tap location. curb stop if applicable, tap location.Confirm Confirm compliance with all compliance with all URMP standards. URMP standards. Page: C21 - UTILITY PLAN File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Sheet P6.10 shows a downspout /% and cleanouts located here. Coordinate plumbing plans to i align with Civil and that internal Sheet P6.10 shows a drain is routed to inlet 1.9(by downspout and cleanouts \\ located here.Coordinate \\ transformer). plumbing plans to align with Civil and that internal drain is routed to inlet 1.9(by /tra/nsformer). Page: C21 - UTILITY PLAN City Fiber wants Duraline or a 6" File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf conduit installed on the south side of the building. Provide a penetration into the building and conduit to the"grassy knoll"vault s•'l°onamrmarauea ony Fibar wants D°ralime eeam PARKING Gi naora by the county building. See °,e'1"�°b'oi,hee Id°9antl image"Aspen Triangle". contluil t°Iha"grassy knoll' aull by the oounry bulltling. See image"Aspen Triangle". NEW FIBER COMMUNICATION CONNECTION TO LOCATION IS APPROXIMATE,SEE MECHANIC ,� Page: C21 - UTILITY PLAN " Name: GrandePlace.2019.03.pdf File Plan Set.Civil.425 Rio Pl2019.03. df Sheet 1.01 shows a grease 1) PROPOSEDCES CITY OF interceptor in this location.The /I a grease interceptor cannot go bow agedSP below the transformer. ;ceoo,,rnsa�„o.rna grease lnereepror oannot go y\bel`ow[M1e Vansformer. y/7 �/� Page: C21 - UTILITY PLAN ` %� F File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Update the utility plan so the base layer shows all new , / '\�� improvements. u � 11// u/// n 11 1®w,4` ;if;l f ` upaa�e matse,,..me �: owe f - Page: C21 - UTILITY PLAN h - . .Hrn1 'i� File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Include utility easements in the utility plan, per URMP, in addition to the survey. Clearly Include utility easements in the utility label. plan,per URMP,in addition to the survey. Clearly label. /— k,u,Z,'l Page: C21 - UTILITY PLAN City ='x ° ' x� , File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Fiber needs a conduit that A , crosses Mill St and goes to 201 E1 IN N Mill St. Please provide. IN / / h� City Fiber needs a conduit that /�, crosses Mill St and goes to 201 yam/ N Mill St.Please provide. / / W.5;i ; Page: C21 - UTILITY PLAN / ' M File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Comcast wants a conduit that j 4runs from the vault on Rio I I/ Grande to the pedestals at the 141101 / garage alley entrance. Please Peeee / .111.4, provide. `�p ri' /i 4 2 T /'/ , % , ! Page: C21 - UTILITY PLAN �\ � File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf � Ensure sanitary service plan aligns with the Rio Grande V Utilities plan. Ensure sanitary service plan allyes with the Rio Grandy \\ Uhhtlen plan. i Cl• Page: C21 - UTILITY PLAN � � 9'�+ta File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf The water service plan has since ��x changed. Please update these �Aki� �� Fv \ sheets. Show on the plumbing ��� \ plans the domestic waterline can , be routed from the 6"garage �. service line through conditioned OA -Ilk iip�. space. S Page: C22- EROSION CONTROL PLAN File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf I �`� �\ Page: C22- EROSION CONTROL PLAN File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Page: C23- PROJECT DETAILS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf This should be spill curb in Curb Ramp 1 detail. This should be spill curb in Curb Ramp 1 178855. detail. :?rsa J J 6+ Page: C23- PROJECT DETAILS Include the COA Water Standard File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Detail Sheet. Include the COA Water Standard Detail Sheet. Page: C23- PROJECT DETAILS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Provide detail for barrier spill curb. Provide detail for barrier spill curb. Page: C23- PROJECT DETAILS File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf Please use COA Design Detail 201A for C&G _O BOVEVmcc11P /" Please use COA I Design Detail 201A s for C&G p GUTTER TYPE 2 GUTTER) Page: C23- PROJECT DETAILS Please use URMP Detail for two File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf e"DIA PRECAST CONE chamber drywell. as"PREC,Please use URMP Detail for two chamber drywell. 0 48'PERFORATED PRECAST CONCRETE BARREL MIN 4' HIGH ACTIVE AREA J1 Page: C23- PROJECT DETAILS Provide mountable curb detail File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf for the catch ou curb on Mill St for GUTTER emergency access to the Provide mountable cmb detail parking lot. emergency mer ncyh cces t Mill S[for mein lot access to the parking lot. Page: C23- PROJECT DETAILS a File Name: Plan Set.Civil.425 Rio Grande Place.2019.03.pdf This should be catch curb in 7881.520%7881.67 Curb Ramp 2 detail a / o„ his should be catch r� °o t� urb in Curb Ramp 2 etail 4881.00�nr o071.0g 788,1.17 881 1'88 6.0' \ 21+88.64 7 19.488 B 7AMP 2 N Plan Set.Landscape.425 Rio Grande Place.2019.03.pdf(4) Page: L7 10 SITE DETAILS Trees typically are not permitted File Name: Plan Set.Landscape.425 Rio Grande Place.2019.03.pdf in bioswales. Coordinate with Parks Dept on the use of teres in the bioretention area. I(REFER TO CIVIL) Page: L8A-01 - PLANTING PLAN aa, File Name: Plan Set.Landscape.425 Rio Grande This area is designated as a /' Place.2019.03.pdf drainage swale in the civil ... This area Is designated ahe drawings. Planting trees within It drainage n the drawings.Planting the swale is not recommended. drawings.Planting trees within the Swale not V,Ti anded. Consider using native grasses Consitler using native grasses that will slow that will slow flow rates but not flow rates but not thepact the capacity of impact the capacity of the swale. Swale. —NV`-- _v \ Page: L8A-02- PLANTING PLAN File Name: Plan Set.Landscape.425 Rio Grande Tree plantings are typically not Tree plantings are typically not permitte din bioretention swales. Pef;eSeWhaeiare t volume Place.2019.03.pdf culations and available What are volume calculations °l°ma and available volume? eta. . . . . . *' r Page: L9A-01 -SOIL PLAN File Name: Plan Set.Landscape.425 Rio Grande Bioretention media shall be used Bioretention media shall be Place.2019.03.pdf in bioretention ponds, not typical used in bioretention ponds,not p planting soil. 70%sand typical planting soil.70%sand p 9 .50. ,LANTING SOIL(1193 SF) OW VIV I, VW*.OOi • • a Soils Report.425 Rio Grande Place.2019.03.pdf(3) Page: 1 Per COA requirements, File Name: Soils Report.425 Rio Grande Place.2019.03.pdf Per COA requirements, percolation tests must be percolation tests must be performed near the location of performed near the location of proposed drywells. Please proposed drywells.Please submit test results for a submit test results for a percolation test conducted near percolation test conducted near the proposed drywell. the proposed drywell. i excavation depths fit a basement level is con- Page: 5 a shoring/bracing system will be needed around por- File Name: Soils Report.425 Rio Grande Place.2019.03.pdf Please confirm if a previous soil of the building footprint to retain the adjacent ground. study was conducted for the :riorcolumn loads up to aPlease confirm if a I Pe- construction of the existing Rio between 4,000 and 6,0oprevidussail study was, Grande Parking Garage and conducted for the new Aspen Civic Bui construction of the a ad- attach. 3aragexisting Rio Grande Parking Garage and attach. 3 Page: 5 The limits of File Name: Soils Report.425 Rio Grande Place.2019.03.pdf The limits of construction appear construction appear to to have been increased since have been Increased since this report was this report was completed. We completed.We recommend conducting y recommendg �r; conducting o duct gadditional �►'] additional test holes to up datetaend hcooemotuhpedsaoe and confirm the soils information information and ground ,,� water table elevations. and ground water table At least one test hole should be near the _ elevations.At least one test hole proposed drywell. 4, should be near the proposed drywell. Survey.425 Rio Grande Place.2019.03 (1).pdf(4) 31n,t t.,1,1 Page: [1]24x36 )E SUBDIVISION.ACCORDING TO THE AMENDED FINAL File Name: Survey.425 Rio Grande Place.2019.03(1).pdf Call out the tree species for 18 IN PLAT BOOK 121 AT PAGE 007,CITY OF ASPEN,COL trees with a trunk diameter larger than 4 1/2 inches on the survey. Call out the tree species for trees with a trunk diameter larger than 4 1/2 inches on the survey. Page: [1]24x36 Identify the flood zone File Name: Survey.425 Rio Grande Place.2019.03(1).pdf designation with the proper Identify the flood zone annotation based on Federal designation with the proper Flood Insurance Rate Maps on annotation based on Federal the survey. Flood Insurance Rate Maps on the survey. PROPERTY DESCRIPTION Page: [1]24x36 Call out the gross land area to File Name: Survey.425 Rio Grande Place.2019.03(1).pdf the nearest thousandth of an Call out the gross land acre on the survey. area to the nearest thousandth of an acre on the survey. Page: [1]24x36 Provide a legend for the symbols File Name: Survey.425 Rio Grande Place.2019.03(1).pdf and various line work used in the survey. Provide a legend for the symbols and various line work used in the survey.