PC PACKET 121621 - Laserfiche WebLink

Home

D 11+00 / I / I I/ I j EXISTING j FILTRATION I -91&0 BASIN 1 � I .41 � I � I � I \\ I \ I \ I I EXISTING WETLANDS 12+00 00 /�925.52 i / E�_� CID \v/ P \ o 6 9 the ohe ohe ohe ohe ohe �heNSON �[`� ml ---- \\\ - ----- - ----====fv1----_ = F-----FM--F�� 1M ------ 14+00 051 ++ 0 - I - - 1 0 17+00 18+00 19+00 --- --- --SiH-<---<= <---<--<--- - ° DT DT JJ- I DT - DT - DT - DT c I I I I I -- I I i I I - - CP- SWE I I _ - I �RIN 1 ul I 1 � I 1 ■ EXISTING OFFICE ' +WAREHOUSE (BUILDING 6) (22,580 S.F.)" � I I 1 - I ' 1I 1 r-1 r-1 I r-1F� r�r, J = POND SHALL BE EXPANDED TO 1, II I 11 I I. I I I II JI'n I �D7 CDT CDT . PRP. NEW IMPERVIOUS: 1.41 AC I � I � PROPOSED MANUFACTURING BUILDING 7 i� (43,320 S.F.) I. 'I I I I I I o I I I I I I I I EXISTING PRETREATMENT POND I I I I I I I I I I I I I I I I II II I IJ co EXISTING FILTRATION BASIN OU TLOT A 1 � / EXISTING I WETLAND EXISTING IJ FRETREATMEN'1'I POND II n ACCOMMODATE FOR ADDED IMPERVIOUS II ->>- - ->>- _ate >>- - ->>- - ->>- - ->> - a ` EXISTING OUTDOOR RAW I _\�_ __ ___-- 7 MATERIALS STORAGE I - > » - - -� - - - - - - - - -- - -4--- =�� 930 g cP 'I c ti 930.6 1200 931.19 --ea-1 Vo, q - GVG s " i IHD V, e8 V n Gp�. 11 •STMH ' a '. STMH" i. .. " M ° ue ue ug ug u A I EXISTING MANUFACTURING/ I V WAREHOUSE BUILDING (144,000 S.F.) l� --- ---- v -------- ---- --- Q -------- -------- LIJ EXISTING OUTDOOR ---- FINISHED PRODUCT ---- STORAGE U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U ✓��SEF�R�E�S�PXRKING ��, ✓��' 229 SPACES (PROVIDED ONLY AS REQUIRED BY CITY) U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U --- I I I I I I I I I I I I I V I TH STREET N CAMPUS STORMWATER NOTES 1. LOT 1, BLOCK 1 ORIGINALLY DESIGNED FOR 1.17 ACRES OF IMPERVIOUS SURFACES. APPROVED PLANS FOR EX. BUILDING 6 PROPOSED APPROXIMATELY 1.39 ACRES OF NEW IMPERVIOUS SURFACES. 2. THE ORIGINAL BUILDING 7 PLANS WERE DESIGNED FOR 1.49 ACRES OF IMPERVIOUS SURFACES. THE PROPOSED LAYOUT CONSISTS OF 1.36 ACRES OF NEW IMPERVIOUS SURFACES. THIS REDUCTION DOES NOT COMPENSATE FOR THE ADDITIONAL INCREASE OF IMPERVIOUS FROM BUILDING 6. 3. TO ACCOMMODATE FOR THE INCREASE OF IMPERVIOUS FROM BUILDING 6, AND THE REDUCTION OF IMPERVIOUS FOR BUILDING 7 DOES NOT MAKE UP FOR THE INCREASE, THE EXISTING POND SOUTH OF THE FILTRATION BASIN LOCATED IN OUTLOT A SHALL BE EXPANDED. THE POND SHALL BE INCREASED BY A VOLUME OF APPROXIMATELY 0.012 ACRE-FEET. THIS IS THE DIFFERENCE IN REQUIRED POND TREATMENT VOLUME BETWEEN THE ANTICIPATED 1.27 IMPERVIOUS ACRE LAYOUT AND THE PROPOSED 1.36 IMPERVIOUS ACRE LAYOUT. IMPERVIOUS SUMMARY ORIGINAL DESIGN PROPOSED EX. BUILDING 6 1.17 AC. 1.39 AC. PRP. BUILDING 7 1.49 AC. 1.41 AC. REMAINING CAMPUS 11.17 AC. 11.17 AC. TOTAL 13.83 AC. 13.97 AC. 0 30 60 120 (IN FEET) BENCHMARKS 1. Top Nut of Hydrant located approx. 120 ft. northwesterly northwest corner of the existing building, as shown. Elevation = 932.85 ft. 2. Top Nut of Hydrant located at the southeast corner of 140th Street N. and Fenway Boulevard N. Elevation = 934.51 ft. J Q i Z W Z V N U of Z Z LU IZ f lui V t� al: > z X W to W J y m J Z o � Q U 07 LLI ~' � W Z W > � ap 11 � M tp 0 W 13 11 Ix I- o V Z U) co W 2 a M co H MMo (� V ~ F�1 H J H o N X W c W o a W = Q ~ V V J J (� z Z� N Z3 00 Q � M o J Q Ln O `n _ ro z ry � � Q c Z°L0) QLn=3 rn � M lwi � H \N REVISIONS 1. 12/9/21 per City Comments, 2. 3. 4. 5. 6. DRAWN BY: KRO DESIGNED BY: BJK ISSUE DATE: 7/30/2021 I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota Name: Brian J. Krystofiak, P.E. Signature: /L� IV Date: 7/30/2021 License #: 25063 C 1 0 of C11