HomeMy WebLinkAboutResolution No. 143-14 •
RESOLUTION
BE IT RESOLVED by the Common Council of the City of Rochester that the City adopt a
policy requiring the use and submittal of the 2014 Permanent Storm Water Management Plan
Checklist, the 2014 Subdivision and Non-Residential Lot Grading Plan Checklist, and the 2014
Single Residential Lot Grading Checklist to assist the development community and to
summarize the storm water, drainage, grading, and erosion control requirements contained in
City Standards and Ordinances, and required by State and Federal Laws. A copy of the
checklists is attached,
PASSED AND ADOPTED BY THE/ COMMON COUNCIL OF THE CITY OF
ROCt(ESTER, MINNESOTA, THIS t ( DAY O A-Nrl' ' 2014.
a Z R_"M'_�Oz�
PRESIDENT C} SAID CO ON COUNCIL
ATTEST: _, ,� 5 •_� .. .
CITY CLERK
APPROVED THIS DJ. DAY OF ' c) , 2014.
MAYOR OF SAID CITY
(Seal of the City of
Rochester, Minnesota)
Res101PNMdopt.GradirigPlanChecklists.1 A
•
PERMANENT STOWNI WATER MANAGEMIENT
• kuyl PLAN CIIECKLIST
w••.• Revised Apt il 2014
Key" Site:
0=Yes
Cl=No Prepared By: Date:
Blank=Not Applicable Reviewed Ily: Date:
GENERAL stabilized in 24 hrs alter connection.
❑ Atlas 14,Volume 8 rainftall depths must be used with an SCS
Type 11,24 hour distribution. Rainfall Depths are as follows STORM DRAIN Sl'STEA1 INLETS & OVERFL.OIVS
for the listed design events;2yr:2.94inches, IOyr:4.47 ❑ Atlas 14 intensity-Duration-Frequency(IDF)curve must be
inches, 100yr:7.81 inches used when designing storm sewer system using the rational
O Size of the drainage area served shown: method. If storm sewer is dcsigned using SCS
• Total pro.jecl area and total impervious surface areas of methodologies,the 10 year design event rainfall depth nuts!
project. be used.
• Total estimated impervious surface areas of ultimate ❑ hi locations where hvo on-grade catch basins are used,the
development. Neenah curb opening calculator(or approved equal)shall be
used to verify that double catch basins are spaced
❑ Final plan is signed by a licensed professional appropriately to maximize capture efficiency.
❑ Submitted Signed Drainage Report per City Template ❑ All apron elevations(inlets and uutlels)are labeled,
❑ Owncr nantc(s),email address,and address(es)listed. ❑ Area inlet,CB,M11,elevations are labeled.Pipe sizes
and types are labeled.
❑ Plan is I"=50'or larger scale.North arrow shown. ❑ 400'max.manhole spacing for lines 15"diameter or less.
❑ flan is drawn in two-toot contours.All finished contours and ❑ 500'max.manhole spacing for lines 18"to 30"diameter.
adequaly existing CUrtttm'5 are labeled, ❑ Flow direction change is<90°at junctions.
❑ Existing contours arc clashed and proposed are solid. CI Apron inlets to the stone sewer include trash racks.
❑ 'Trash racks on inlet structures in wooded areas designed
O Existing public and private utilities are shuwu' assuming a minimum of 50%plugging condition.
❑ Soil types shown(in drainage report).
❑ Areas not to be disturbed clearly defined, OLITI,FTS& ENERGY DISSIPATION
• O ALL receiving waters, incliding wetlands,within I mile ❑ Discharge direction of flow generally 45 degrees or less to
shown or identif led,including impaired waters, the flow direction of receiving ditch or stream.
❑ 'temporary stockpiles include additional sediment control and ❑ Discharges to rear property lines shall general I),be piped to
temporary cover after 14 days(7 days it'discharging to and at least the.rear property line.
within I stile of an impaired water). ❑ Where discharge pipe velocities are 10 fps or less,riprap and
❑ Properly limits are shown,Streets are labeled. Lot fi block filter volumes are indicated in accordance with Mn/DOT
information shown if platted.Street address shown if Standard Plate
unplatted. ❑ Where discharge pipe velocities arc:greater than 10 1'ps,
O Drainage easements are shown and labeled on the plan. energy dissipater is provided along with riprap(or
alternative armoring method)and filter media.
❑ Stunt water management only
areas are platted as os located
a O Discharges on slopes steeper than 10%shall not be allowed
facility that will serve casement
the lol that
which it is located may unless discharge is into existing drainage ditch and volume
simply be a drainage casement on that lot' of water in ditch is not greater than 1 10%of the plc-
0 Schedule of 13\4P installation shown. developed condition.
D Pipe outlet energy dissipation complete within 24 hours of
DRAINAGE S11'AI,F,S& EASE'M ENTS connection to surface water or outlet.
❑ Drainage and Utility casements are shown and labeled o❑the ❑ Evaluation of downstream adequacy provided(capacity
plan. stability).
❑ Control elevations for drainage ways are provided. 100ycar
flow contained in casement TEMPORARY SEDIMMENr BASINS
❑ r\lininuun slope al'drainage swales is 2%. ❑ Sized to store 2-year,24-hr storm from the drainage area
❑ Drainage casements are seeded and protected with erosion below the outlet pipe(no smaller than 1800 et7acre of
control blankets or They are sodded where concentrated flow drainage area),or
from more than 1 acre or 4 lots is directed.Blanket category O Sized at 3,600 cf/acre of drainage area.
specified per Mn/DOT 3885,I,Plan depicts required blanket O Designed to minimize short-circuiting.
locations. ❑ Floating debris discharge is prevented.
❑ Velocity computations are provided for drainage casements
where concentrated flow from more than 2 acres or 8 lots is ❑ Designed for full dewatering.
directed.Where I O-year velocities exceed 5 Il/sec,permanent ❑ Energy dissipation provided at outlet pipe.
turfrefnforccntent mats are installed per City sit).plate 7-07.
Mats per Nln/DOT 3888.1 or manufacturer and product is ❑ Principal and emergency spillway designed per HIMP storm
specified.flan depicts blanket locations and cross sections. frequency standards.
• ❑ Easement documents Eire signed and submitted to Public ❑ Fenced if slopes exceed 4:1 per city detail,
Works with a check for recording if not included in plat. TEr111'ORARV SEDIMENT BASINS(continued)
11 Ditches within 200'of surface water on Property line 0 flan requires any permanent or temporal),sediment ponds to
be constructed before other construction slat is. top of the bedrock(impermeable liner required)
❑ Areas that receive discharges from industrial
PPR\1ANRNT PONDS facilities which are not authorized to infiltrate
❑ Entire drainage/service area shown(in drainage report). stornlwater under an NI'f)ES/Sf)S Industrial
❑ 50 scale or larger grading plan with pond cross section. Stornlwater•Permit issued by the MPCA
❑ Where possible,provide a lbreb,a),at Ile inlet;locale inlet ❑ Areas where high levels of contaminants in soil or
and outlet at opposite ends of pond;old provide length to groundwater will be mobilized by the infiltration
width ratio>3, stornlwnter
❑ Nfulti-cell design where practical. ❑ Arens of predominately Hydrologic Soil Group D
❑ 10:1 bench is provided for first I JIM of depth below normal (clay)soils(City approval required in these
water elevation conditions)
❑ 4:1 mns slope from normal water elevation to 100-year
water elevation.
❑ 3:1 alas slope below normal wale•elevation. INFiLTRAIION/FILTRATION
❑ Pond depth is 4 to 10 feet based on normal water level. ❑ Infiltration/filtration 11kiP may be used to retain the I"
❑ Normal Water level elevation is shown. water quality volume on site(no discharge to surface
❑ 100-year high water level is shown. water).
❑ Inlets are at or below normal water level ❑ Type(s)used.
❑ outlet is designed to prevent short-circuiting and discharge ❑ Infiltration basins
of floating debris. ❑ Infiltration trenches.
❑ Permanent pool volume=1800 of per acre drained. ❑ Rain gardens.
❑ Water quality volume equal to I inch runoff from total ❑ Sand filters.
impervious surface area,at ultimate development. ❑ Organic filters.
❑ Outlet sire to discharge no more than 5.66 efs/acro of pond ❑ 13ioretention.
surface at water quality volume elevation. ❑ Natural depressions(wetlands not included)
❑ Energy dissipation on outlet piping. ❑ Other:
❑ Areas less than 1 acre not draining to pond managed by: ❑ Ploalables removed before infiltration/filtration system.
❑ Grassed swales. ❑ Site sensitivity analysis included,
❑ Small ponds. ❑ Evaluation or hydrologic impact included.
❑ Grit chambers. ❑ Infiltration scheduled after fill]site development and
❑ Other: stabilization.
❑ Emergency overflow spilhuy is provided to accommodate ❑ Runoff routed away from Infiltration system during
100-year event.High point elevation and direction of Coll st rue(ion.
. overflow are marked on plans. ❑ Site controlled to minimize soil compaction.
❑ Emergency overflow spillway is located to protect adjacent ❑ Pretreatment sediment removal included.
property and large till sections. ❑ Designed for I inch of runoff from total impervious surface
❑ 100-year runoff which is designed to flow to the pond does area,,For ultimate development,drains within 48 hours.
not bypass the pond:unmodcled 100-year flow does not ❑ System bypass liar flows that cannot be filtered.
enter the pond ❑ \•tinimnnl verlictil separation of 3 feet between seasonally
❑ Minimum 10'width at top of dam(ifdam is< 15'high). sattuafed soils(or bed rock)and bottom of
❑ 12'wide access and turn-around area Im maintenance infiltration/filtration system.
vehicles is shown on a slope< 15%,cross slope<6%. ❑ Soil test results,system capacity calculations,and
❑ Pond access is included in to min. 15'wide portion of the computer modeling results included.
pond oullot.If access is in on casement across private ❑ Nlininttun 10'width maintenance access provided.
property,it 12'wide paved access road is provided. ❑ Infiltration systems not permitted for vehicle fueling or
❑ Seed mix rNIn/DOT 33-261 liar it 10'perimeter around the service areas
pond.Seed mix 14in/DOT 35-241 Im the remainder of the ALTERNATIVE AND COMBINED PRACTICES
pond oullot.
❑ DNR dam safely permit obtained if data height is>6'and ❑ Combined practice(narrative in drainage report).
storage to top al'dam is> I5 acreJl. ❑ Alternative practice(narrative in drainage report).
❑ Full calculations and plans included(narrative in droinnge
INFILTRATION DISQUALIFICATION CIIECKLIST reporl).
❑ Infiltration is prohibited when the infiltration system will
be constructed in:
❑ Areas that receive discharges from vehicle fueling or 'As a reference document see
maintenance, hgLI kg.le_�.sUHe,inn_usli_ndOX,plllVv%lilerr\\lite-lsprrtiiid.
❑ Areas with less than three(3)feet of separation Ill ognill s-slol m��aWr±sl41rm11,Ilti l'-fllilllil{CI11Ctllrnlllllll`SOtilti
distance from the bottom ol'the infiltration system to sa 1,11Matu.ln lnu l;htnil
the elevation of the seasonally saturated soils or the
ADDITIONAL NOTES:
•
SUBDIVISION AND NON-RESIUNTLV,LOT
GRADING PLAN CIIECKLIST
Revisal A aril 2014
Key ' Site:
0=Yes
O=No Prepared By: Date:
Blank Not Applicable Reviewed By: Date:
GrNERAL ❑ Stabilized vehicle exit(s)are provided,minimize number.
❑ Atlas Id,Volume Li rainfall depths must be used with an ❑ Silt fences are provided per B;vlP Manual G.31. In
SCS Type 11,24 hour distribution. Rninfitll Depths tire as concentrated flow areas is"high flow,heavy duty"type.
follows for the listed design events;2yr:2.94inches, 10yr: ❑ All storm sewer inlets,existing and proposed,have inlet
4.47 inches, 100yr:7.81 inches protection/temporary sediment control that remains until up•
❑ NIMES permit including S11'YPP is referred to on plan slope nreas ore stabilized.
❑ Completed grading permit application lirrnn. ❑ Maximum unbroken 3:1 or steeper slope o1'75 feet
❑ Final grading plan is signed by a licensed professional,5 horizontal
copies.One copy of other documentation. ❑ Temporary stockpiles include nddilionrrl sediment control
❑ Submitted Signed Drainage Report per City Template and temporary cover atler 14 days(7 days Vdischarging to
❑ Owner nnnnc(s),email address,and address(es)listed on and within I mile of impaired water).
Grading Plan. ❑ soil vrilliin I mile of inwiral water stabilized within 7
El Plan Plan is I"=50'or larger scale.North arrow shown, ❑ Percent of slope is shown for streets and drainage Ster+hs.
❑ Plan is drawn in two-foul contours,All finished contours ❑ Pill&cut property line setbacks are>2'for cut slope ht.
and adequate existing contours are labeled. > 10'or ill slope ht.>4';setback is dimensioned un the.
❑ Existing contours are dashed and proposed are solid. plans.
❑ Directional arrows are shown For proposed drainage' ❑ All proposed lot corner elevations tire shown.
❑ Details of terrain and drainage are provided I'or areas ❑ Proposed elevations of parage and lowest floor,ground at
adjacent to the proposed grading, front and rearol'building,along with Ilse structure type are
❑ Existing public and private utilities are shown, indicated on the plan,
❑ Boundaries ofdrainage areas shown(in drainage report), ❑ Top of Coundation is min.G"above the ground.
❑ Soil types shown(in drainage report).
❑ Areas not to be distiubed clearly defined. ❑ Grade I'below top of foundation 10'from building.
. ❑ ALI.receiving waters.including wellands,within 1 mile ❑ Freeboard to structures.Floor el.or the grade adjacent to the
shown or identified,including impaired waters. building is tit least I'above any overflow elevation,and at
❑ Property limits are shown.Streets are labeled.Lot&block least T above any pond 100-year water level,whichever is
inRrrnmtion.Street a(I(iress shown,il'known, greater and min.I'above FFIMA flood cl.
❑ Proposed sidewalk shown liar commercial/industrial sites. ❑ Drainage flows away from structures at min.2%.
❑ County/NINDOT permit obtained for work in their ROW, ❑ Temporary or permanent diversion swtiles,stabilized with
❑ Substantial Land Alteration approved for elevation changes turf mat,pipe,riprap,are used at the top of slopes exceeding
> 10'or other criteria that require a SLA. 4:1,when applicable. u
❑ All City Council approval conditions are nnct. ❑ Minimum lot slopes for vegetated areas are 2/o minimum.
❑ The following areas are tabulated for residential(acres): ❑ All exposed soil stabilized in 14 days.
• Total platted area(site area) ❑ Temporary or permanent cover is indicated for till disturbed
• Total area disturbed areas,Temporary seeding specifies seed mix including disk
• Total developable area(excluding fioodway,natural anchored mulch on all slopes 200'or>5°5.Permnnent
steep slopes,&wetlands). cover specifies 4"min.topsoil,seed mix and disk anchored
❑ The following wrens are tabulated for non-residential mulch,or min,topsoil and sod.
❑ Slopes sleeper than 4:1 and 4:1 slopes longer than 30'the
(acres)' seeded and prolected with erosion control blankets or Sodded
• Total prgject area and stoked, fllaaket category specified per Mn/DOT 3835.1.
• Total impervious areas of Ixdijcct,existing cL proposed. Plan depicts required blanket locations.
• Tabulation of total and impervious area by tax parcel. ❑ Statement that slopes steeper than 4:1 are stable from land-
❑ Schedule of BiMP installation shown, sliding till(]surface erosion.Geotechnical report lirr slopes
❑ B\4P details included. >3:1.
❑ Concrete washout management and waste control B\dl' ❑ For sites where tempos)or permanent cover will not be
addressed on plan, complete by November 15;plan indicates adequate
❑ Dewnlering activities discharge to treatment facility. mensares to control spring erosion&sedimentation.
❑ Per the NPDES Construction Storm Water Permit,the(late
and amount ofall rainfall events gretiter thin'/,inch in 24 DIWNAGr SWAl,rs 43, rASE.MENTS
hours must be documented. Rainfall amounts roust be ❑ Drainage and Lllility casenncnts arc shown and labeled on
obtained from a properly maintained rain gunge installed on the plan.
site,n weather station Nvitbin I mile of the site,or a weather ❑ Drainage easements are provided where concentrated ilo%v is
reporting system that provides site specific rainfall rainfall received from more than I adjacent lot and nlso where
data from radar summaries. concentrated flow is received from more than I acre of
• SITE GRADING SEDIMIENT& EROSION CONTROL adjacent property. 100-yenr flow contained inn easement.
11 Down-slope sediment control scheduled before grading.
❑ Adjacent property protected i'rnm drainage find sediment.
DRAINAGE'S\VAL.ES.\ EASENTENTS(continued) D For other than RI&R2,drainage from impervious surfaces
D 1%-linimm�n drainage easements for flows from I acre or less is collected on-site and not sheet drained onto sidewalks,
or 4 lids or less ore it minimum of 15'wide.Ditch is rights of way or adiocent property.
1.9'deep V•shnped with 4:1 slopes, O Concentrated drainage is collected in CB before crossing,
O Mininman drainage casements lim•flows from more than I walk.
acre or more than 4 lots are a minimum of 20'wide,Ditch is ❑ Overflow stvnlcs are provided which limit the depth of
it minimum of 2'deep with a 4'bottom and 4:1 slopes up to ponding in the street to Tor less.
the ensement line. 100-year runoll contained in easement. ❑ Emergency overflow with the high point elevation and
❑ Control elevations for drainage ways are provided.
❑ Minimum slope of small drainage swales is 2%. dlirection of overflow ore clearly marked on plans.
❑ Drainage casements f'or flow from more than I acre or 4 lots ❑ emergency overflow swalc meets minimum drainage
are seeded and protected with erosion control blankets or casement standards noted above.
sodded. Blanket category specified per&ln/DOT 388S.1.
Plan depicts required blanket locations. OUTLETS&ENERGY DISSIPATION
❑ Velocity computations are provided for drainage casements ❑ Discharge direction off low generally 45 degrees or less to
where concentrated flow from more than 2 acres or 8 lots is the flow direction of receiving ditch or stream.
directed.\\'here 10-year velocities exceed 5 ft/sec, ❑ Discharges to rear property lines shall generally be piped to
permanent turf reinforcement mats are installed per City std. at least the rear property line.
plate 7-07.Mats per Mn/DOT 3888,1 or manufacturer and ❑ Where discharge pipe velocities are 10 Ups or less,riprap and
product is specified. Plan depicts blanket locations and cross filter Volumes ore indicated in accordance with 1Mn/DOT
sections. Standard Plate.
❑ Easement documents are signed and submittal to Public D \\'here discharge pipe velocities are greater than 10 fps,
Works with recording fee or included in plat. energy dissipater is provided along with riprap and filter.
❑ Ditches within 200'ol'surface water or Properly line ❑ Discharges on slopes steeper than 10%shall not he allm%ed
stabilized in 24 hrs after connection unless discharge is into existing drainage ditch and volume
of water in ditch is not greater than 110%of the pro-
STORM DRAIN Sl'STE\1 INLETS &OVERFLOWS developed condition.
❑ Atlas 14 Intensity-Duration-('requency(IDF)curve must be ❑ Pipe outlet energy dissipation complete within 24 hours of
used when designing storm sewer System using the rational connection to surface water or outlet.
method. if storm sewer is designed using SCS ❑ Evaluation of downstream adequacy provided(capacity cf
methodologies,the 10 year design event rainfall depth must stability).
he used,
❑ In locations where two on-grade catch basins arc used,the TEMPORARI'SEDIMENT BASINS
• Ncenah curb opening calculator(or approved equal)shall be 0 Temporary sediment basin provided or provisions for the
used to verify that double catch basins are spaced use ofexisting City f'racilities.
appropriately to maximize Capture Cfficietcy. ❑ Sized to store 2-year,24-hr storm from the drainage area
O All apron elevations(inlets and outlets)ore labeled,Area below the outlet pipe(no smaller than 1800 cf%acre of
inlet,CB,MH,elevations are labeled.Pipe sizes and types drafnnge area),or sized at 3,600 cr/adore of drainage nien.
are labeled. ❑ Designed to minimize short-circuiting.
❑ 400'max.manhole spacing for lines 15"diameter or less. ❑ Floating debris discharge is prevented.
❑ 500'max.manhole spacing for lines 18"to 30"diameter. D Designed for full dewatcring.
❑ Drainage from subdrains,sump pumps,and building storm ❑ Energy dissipation provided at outlet pipe.
drains does not flow through public CB's. ❑ Principal and emergency spillway designed per 13NIP storm
❑ Not more than 3 C13's in n series(at an intersection)before frequency standards.
connecting to the storm sewer main. ❑ (Fenced il'slopes exceed 4:1 per City detail.
❑ Storm sever main generally does not flow through C13's. ❑ Plan requires any permanent or temporary sediment ponds to
❑ Flow direction change.is 90 degrees al junctions. be constructed before other construction starts.
❑ Drainage does not cross intersections(no valley gutters). ❑ For areas draining less than 10 acres provide alternative
❑ C13 spacing as necessary fix inlet capacity,curb spread,and sediment control(5 acres within I mile of impaired waters),
not exceeding 1000'oo residential sit-eels or 600'on ❑ Multiple lines of sill rence.
collector and arterial streets. ❑ Smell basins
D Apron inlets to the storm sewer include trash racks,per City Cl Vegetative strips(full permanent vegetation before
requirements. upshape excavation).
D Trash racks on inlet structures in wooded areas designed
assuming a minimum of 50%plugging condition.
*Asa reference document see
waterA ;ttdr-l�pr�-.mil-prperaaaS'Sthiamwtiterjst,umt+alu_m in;ie.cnnnl,minnc.m;N-
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slornmeater-nruuril... l
ADDITIONAL NOTES:
•
���• sl>\GI,r�: ItrslnEN•rrAl,LOT GRADING PLAN CHECKLIST w ,k Revised April 20 H
KeyM Site:
0=Yes
I@=No Prepared Ily: Date:
Blank=Not Applicable Revie\ved By. Date:
GENERAL ❑ Grade I'bclo\v top of foundation 10'from building.
❑ Completed grading permit application form. El Drainage[lows away fronn structures it min.2%.
❑ Owner nannc(s),email address,and address(es)listed on ❑ Freeboard to structures.Floor cl.or the grade adjacent to the
Grading Plan. building is at least P above tiny overflow elevation,and at lead 2'
❑ Plan is P'=50'or larger scale.North arrow shown. above any pond 100-year water lewd,whicluever is greater and
❑ Plan is drawn in two-foot contours.All contour are min, I'above FE'MA flood el.
labeled.Or many spot elev,and arrows alternative used. ❑ Minimum lot slopes for wcgelaled areas tie 2%minimum.
❑ Existing contours sure dashed and proposed are solid. ❑ \Maximum unbroken 3:1 or steeper slope of 75 feel horizontal.
❑ Directional arrows arc shown for proposed drainnge• ❑ 'Tennpmary or permanent cower is indicated for all disturbed
❑ Details of lermin and drainage are provided for areas areas.Temporary seeding specifics seed nlix and includes disk
adjacent to the proposed grading. anchored mulch on nil slopes longer than 200'or>5%.
❑ Existing public and private utilities are shown. Permanent cover specifics 4"topsoil,seed mix and disk anchored
❑ Property limits are shown.Streets are labeled.Lot nnulch,or 4"topsoil and sod.
block information.Street address shown,if known. ❑ Slopes in excess of 4:1 and 4:1 slopes longer than Ware seeded
❑ Schedule of 13IMP installation shown, and protected with erosion control blankets or sodded and staked,
❑ BNIP details included. Blanket category specified per&Im/DOT 38R5.1. flan depicts
❑ Concrete\\vnslaout management and waste control 131\41' required blanket locations.
addressed on plan. ❑ For sites where temporary or permanent cower will not be
❑ Per file NPDIS Construction Storm Water Permit,file complete by November 15,plan indicates adequate measures to
date and announl ofall rainfall events greater than'h inch control spring erosion R sedimentation.
Ili 24 hours must be documented. Rainfall anunmis most
be obtained from a properly maintained rain gauge DRAINAGE SWALES& EASEMENTS
installed on site,a weather station within I stile of the 0 Drainage and Utility casements are shown and labeled on the
• site,or a weather reporting system that provides site plan.
specific rainfall rainfall data from radar summaries. ❑ Drainage easements Lire provided where concentrated(low is
received from more than I adjacent lot and also where
SITE GRADING,SEDIMENTS EROSION CON'rltoi, concentrnted flow is received from more than I sere ofad.jaccot
❑ Down-slope sedinnent control scheduled before grading. property. I00•year now in casement.
❑ Adjacent properly protected from drainage and sediment. ❑ Minimum drainage easements for flows from 1 acre or less or,l
❑ Stabilized vehicle exit(s)are provided,minimize lots or less arc a mininuttm of 15'\vide.Ditch is 1.9'deep V-
number: shaped with 4: 1 slopes.
❑ All storm sewer inlets,existing and proposed,have inlet ❑ \limimum drainage casements for flows from more Oran 1 acre or
protection/temporary sediment control that remains until more(lion 4 lots are n mininnum of 20'\vide.
up-slope areas are stabilized. ❑ Ditch is a mbninnum of T deep with a,l'bottom and 4:1 slopes up
❑ "Temporary stockpiles include additional sediment to the easement line. 100-year runoff contained in casenlent.
control and temporary cover after id days(7 days if ❑ Easement documents are signed and submitted to Poblie Works
discharging to and within I mile of Lin impaired water). with recording fee or included in plan.
❑ All exposed soil stabilized in id days. ❑ Control elevations fur drainage ways are provided.
❑ Soils within I mile of impaired water stabilized within 7 0 IMI nimum slope of small drainage swales is 2%.
clays.
❑ Percent ol'slope is shown liar drainage swalcs. ❑ Drainage easements for flow from more than I acre or 4 lots are
❑ Pill S cut property line selbacks are>2'fir cut slope tit. seeded and protected with erosion control blanket or sodded.
>10'or fill slope tit.>4'and setback is dimensioned on Blanket category specified per\1n/DO'I'3885.1.I Ian depicts
the plans. required blanket locations.
❑ All proposed lot corner elevations are shown. ❑ Di(ches within 200'ol'surface water or Property line stabilized in
❑ Proposed elevations of garage and lowest floor,ground 24 hrs after connection.
al Font and rear of building,along with the structure type
are indicated on the plan.
❑ Top of foundation is nun.G"above the ground.
*As a reference document see
tint r."\v\\w.nra.stulc.nm.ats'indcx.rh�i\\atrr.%\vatrr•f\ ,c -;mJ-xor r;lnl?'�tUl'nll\'illtl'r'till)rmnNilter-mane[rm.nVminncsuta.-steam awl-
nunurd.Mnnl
ADDITIONAL.NOTES:
•