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<br />ABBREVIATIONS
<br />BLDG
<br />Building
<br />BM
<br />Bench Mark
<br />CB
<br />Catch Basin
<br />CONC
<br />Concrete
<br />ELEV
<br />Elevation
<br />EX
<br />Existing
<br />FIFE
<br />Finished Floor Elevation
<br />INV
<br />Invert
<br />MAX
<br />Maximum
<br />MH
<br />Manhole
<br />MIN
<br />Minimum
<br />PVC
<br />Polyvinyl Chloride
<br />RCP
<br />Reinforced Concrete Pipe
<br />W.O.
<br />Washout
<br />2023-2024 Handke
<br />N Center Addition
<br />And Renovations
<br />1170 Main Street NW
<br />Elk River, MN 55330
<br />20' 10' 0 20' 40'
<br />'
<br />*NOTE: CONSTRUCTION LIMITS ARE ANTICIPATED SCALE 1° = 20
<br />TO BE PROPERTY LINE UNLESS OTHERWISE
<br />SHOWN.
<br />WALKWAY NOTES:
<br />APPROXIMATE DISTURBED
<br />AREA IS 0.09 ACRES 1. GRADING CONTRACTOR IS TO COORDINATE WITH PAVING CONTRACTOR SO THAT ALL STEPS AND
<br />LANDINGS ARE SLOPED PER CODE.
<br />2. ALL SIDEWALK LONGITUDINAL AND TRANSVERSE SLOPES ARE TO BE PER CODE.
<br />KEYED NOTES
<br />NOTE:
<br />KEYED NOTES ARE DENOTED BY NO ON PLAN. PRIOR TO THE START OF CONSTRUCTION, CONTACT
<br />JASON JOHNSON WITH EXCEPTIONAL OUTDOOR
<br />�1 INSTALL 8-INCH STRAW SEDIMENT CONTROL LOG PER MNDOT 3897. SERVICES TO SET UP A MEETING TO DISCUSS
<br />IRRIGATION WORK (763-438-0438). INTENT IS TO
<br />�2 INSTALL INLET SEDIMENT PROTECTION. REFER TO DETAIL 1/C4.000. DISCUSS CAPPING OF THE EXISTING IRRIGATION
<br />CONTRACTOR SHALL RAISE MANHOLE CASTING WITH ADJUSTMENT RINGS LINES, EOUIPMENT TO BE SALVAGED FOR REUSE,
<br />�3 AND THE CONSTRUCTION SCHEDULE. REMOVAL,
<br />TO BE FLUSH WITH THE SURROUNDING GRADE. A 2-INCH CONCRETE SALVAGE, AND CAPPING OF THE EXISTING LINES
<br />COLLAR SHALL BE INSTALLED AROUND RINGS. SHALL BE PERFORMED BY THE DEMOLITION
<br />4 APPROXIMATE LOCATION OF TEMPORARY CONTAINED CONCRETE WASH OUT CONTRACTOR. WHEN CAPPING THE LINE, DEMOLITION
<br />BIN. REFER TO THE MINPDES/SDS GENERAL STORMWATER
<br />PERMIT FOR CONSTRUCTIONTION ACTIVITY
<br />CONTRACTOR SHALL PROVIDE A STAKE IN THE
<br />FOR MORE DETAILS. SELF GROUND AT CAPPING POINT FOR FUTURE LOCATING.
<br />INTENT IS FOR FINAL IRRIGATION INSTALLATION TO BE
<br />CONTAINED CONCRETE WASHOUTS ON CONCRETE DELIVERY TRUCKS IS AN PERFORMED BY EXCEPTIONAL OUTDOOR SERVICES.
<br />ACCEPTABLE ALTERNATIVE TO ON -SITE CONTAINMENT.
<br />EROSION CONTROL NOTES:
<br />1. ALL EROSION CONTROL FACILITIES SHALL BE INSTALLED PRIOR TO ANY SITE GRADING OPERATIONS. THE CITY ENGINEERING DEPARTMENT MUST BE NOTIFIED
<br />UPON COMPLETION OF THE INSTALLATION OF THE REQUIRED EROSION CONTROL FACILITIES AND PRIOR TO ANY GRADING OPERATION BEING COMMENCED. THE
<br />CONTRACTOR IS RESPONSIBLE TO SCHEDULE A PRE -CONSTRUCTION GRADING MEETING ON -SITE WITH THE CITY. IF DAMAGED OR REMOVED DURING
<br />CONSTRUCTION ALL EROSION CONTROL FACILITIES SHALL BE RESTORED AND IN PLACE AT THE END OF EACH DAY.
<br />2. ANY EROSION CONTROL FACILITIES DEEMED NECESSARY BY THE CITY; BEFORE, DURING OR AFTER THE GRADING ACTIVITIES, SHALL BE INSTALLED AT THEIR
<br />REQUEST.
<br />3. NO DEVIATIONS SHALL BE MADE FROM THE ELEVATIONS SHOWN ON THE APPROVED GRADING PLAN, WITHOUT PRIOR APPROVAL FROM THE CIVIL ENGINEER.
<br />4. FLOWS FROM DIVERSION CHANNELS OR PIPES TEMPORARY OR PERMANENT SHALL BE ROUTED TO SEDIMENTATION BASINS OR APPROPRIATE ENERGY DISSIPATERS
<br />TO PREVENT TRANSPORT OF SEDIMENT TO OUTFLOW TO LATERAL CONVEYORS AND TO PREVENT EROSION AND SEDIMENTATION WHEN RUNOFF FLOWS INTO THESE
<br />CONVEYORS.
<br />5. SITE ACCESS ROADS SHALL BE GRADED OR OTHERWISE PROTECTED WITH SILT FENCES, DIVERSION CHANNELS, OR DIKES AND PIPES TO PREVENT SEDIMENT FROM
<br />EXITING THE SITE VIA THE ACCESS ROADS. SITE -ACCESS ROADS/DRIVEWAYS SHALL BE SURFACED WITH CRUSHED ROCK WHERE THEY ADJOIN EXISTING PAVED
<br />ROADWAYS.
<br />6. SOILS TRACKED FROM THE SITE BY MOTOR VEHICLES OR EQUIPMENT SHALL BE CLEANED DAILY FROM PAVED ROADWAY SURFACES, OR MORE FREQUENTLY IF
<br />REQUESTED BY CITY, THROUGHOUT THE DURATION OF CONSTRUCTION.
<br />7. DUST CONTROL MEASURES SHALL BE PERFORMED PERIODICALLY WHEN CONDITIONS AND REQUIRE OR AS DIRECTED BY THE CITY.
<br />Q /
<br />8. ALL EROSION CONTROL MEASURES SHALL BE USED AND MAINTAINED FOR THE DURATION OF SITE CONSTRUCTION. IF CONSTRUCTION OPERATIONS OR NATURAL
<br />EVENTS DAMAGE OR INTERFERE WITH THESE EROSION CONTROL MEASURES, THEY SHALL BE RESTORED TO SERVE THEIR INTENDED FUNCTION AT THE END OF
<br />EACH DAY OR AS SOON AS FIELD CONDITIONS ALLOW ACCESS.
<br />9. ALL AREAS DISTURBED DURING CONSTRUCTION SHALL BE RESTORED AS SOON AS POSSIBLE. ANY AREAS WHICH HAVE BEEN FINISHED GRADED OR AREAS THAT
<br />HAVE BEEN DISTURBED AND FOR WHICH GRADING OR SITE BUILDING CONSTRUCTION OPERATIONS ARE NOT ACTIVELY UNDERWAY SHALL BE SEEDED AND MULCHED
<br />AS SET FORTH IN THE FOLLOWING PARAGRAPHS WITHIN 7 DAYS:
<br />A. ALL SEEDED AREAS SHALL BE EITHER MULCHED AND DISC -ANCHORED OR COVERED BY FIBROUS BLANKETS TO PROTECT SEEDS AND LIMIT EROSION.
<br />TEMPORARY STRAW MULCH SHALL BE DISC -ANCHORED AND APPLIED AT A UNIFORM RATE OF NOT LESS THAN TWO TONS PER ACRE AND NOT LESS THAN
<br />80% COVERAGE.
<br />B. IF THE GRADED AREA IS ANTICIPATED TO BE RE-DISTURBED/DEVELOPED WITHIN SIX MONTHS, PROVIDE A TEMPORARY VEGETATIVE COVER CONSISTING OF
<br />MINNESOTA DEPARTMENT OF TRANSPORTATION (MNDOT) SEED MIXTURE 21-111 (OATS), OR 21-112 (WINTER WHEAT), AT A RATE OF 100 POUNDS PER
<br />ACRE.
<br />C. IF GRADED AREA WILL NOT BE DEVELOPED FOR A PERIOD GREATER THAN SIX MONTHS, PROVIDE A SEMI -PERMANENT VEGETATIVE COVER OF SEED MIXTURE
<br />MNDOT 22-112 AT A RATE OF 40 POUNDS PER ACRE.
<br />D. GRADING BONDS OR THE EQUIVALENT SECURITIES SHALL BE RETAINED UNTIL TURF HAS GERMINATED AND SURVIVED A 60-DAY GROWING PERIOD.
<br />E. UNLESS SPECIFIED ELSEWHERE WITHIN THE CONSTRUCTION DOCUMENTS (I.E. ARCHITECTURAL SITE PLAN), PERMANENT TURF RESTORATION SHALL CONSIST
<br />OF SOD.
<br />F. WHENEVER OTHER EROSION AND SEDIMENT CONTROL PRACTICES ARE INADEQUATE, TEMPORARY ON -SITE SEDIMENT BASINS THAT CONFORM TO THE
<br />CRITERIA FOR ON -SITE DETENTION BASINS SHALL BE PROVIDED.
<br />G. RUNOFF SHALL BE PREVENTED FROM ENTERING ALL STORM SEWER CATCH BASINS PROVIDING THEY ARE NOT NEEDED DURING CONSTRUCTION. WHERE
<br />STORM SEWER CATCH BASINS ARE NECESSARY FOR SITE DRAINAGE DURING CONSTRUCTION, SEDIMENT PROTECTION DEVICES AS DETAILED SHALL BE
<br />INSTALLED AND MAINTAINED AROUND ALL CATCH BASINS UNTIL THE TRIBUTARY AREA TO THE CATCH BASIN IS RESTORED.
<br />11. GRADING ACTIVITIES PROPOSED TO BEGIN AFTER OCTOBER 15 WILL REQUIRE AN APPROVED PHASING SCHEDULE. THE AREA OF LAND THAT THE CITY WILL ALLOW
<br />TO BE DISTURBED AT THIS TIME OF YEAR WILL BE SEVERELY LIMITED. THE CITY WILL ALSO REQUIRE ADDITIONAL EROSION CONTROL DEVISES, I.E., TEMPORARY
<br />SEDIMENT BASINS, DORMANT SEEDING AND HIGH RATES OF APPLICATION OF BOTH SEED AND MULCH.
<br />12. EROSION CONTROL ITEMS AND DEVICES SHALL BE REMOVED ONLY AFTER THE AREA HAS RECEIVED FINAL STABILIZATION OR AS DIRECTED BY THE CITY.
<br />GRADING NOTES:
<br />1. THE CONTRACTOR SHALL VISIT THE SITE, REVIEW ALL CONSTRUCTION DOCUMENTS AND FIELD VERIFY THE EXISTING CONDITIONS PRIOR TO BIDDING. NO
<br />ADDITIONAL COMPENSATION WILL BE GIVEN FOR WORK THAT COULD HAVE BEEN IDENTIFIED BY A SITE VISIT OR CONSTRUCTION DOCUMENT REVIEW.
<br />2. THE BACKGROUND INFORMATION WAS PREPARED BY SUNDE. CONTACT LEONARD CARLSON AT (952) 881-2455.
<br />3. IT IS THE CONTRACTOR'S RESPONSIBILITY TO ASCERTAIN THE LOCATION OF ALL EXISTING UTILITIES. THE CONTRACTOR SHALL VERIFY THE LOCATION, ELEVATION
<br />AND MARK ALL EXISTING UTILITIES 48 HOURS BEFORE CONSTRUCTION STARTS. THE ENGINEER, ARCHITECT OR OWNER DOES NOT GUARANTEE THAT ALL THE
<br />UTILITIES ARE MAPPED, OR IF MAPPED, ARE SHOWN CORRECTLY. CONTACT GOPHER STATE ONE CALL AT 651-454-0002 FOR FIELD LOCATING EXISTING UTILITIES.
<br />CONTACT UTILITY OWNER IF DAMAGE OCCURS DUE TO CONSTRUCTION.
<br />4. PROTECT ALL EXISTING STRUCTURES AND UTILITIES WHICH ARE NOT SCHEDULED FOR REMOVAL.
<br />5. NOTIFY CITY BUILDING INSPECTOR BEFORE TRENCHING AND EXCAVATION WORK COMMENCES. THE CONTRACTOR SHALL OBTAIN ALL APPLICABLE PERMITS PRIOR TO
<br />START OF CONSTRUCTION.
<br />6. ALL SPOT ELEVATIONS SHOWN AS 09.00, FOR EXAMPLE, ARE TO BE UNDERSTOOD TO MEAN 909.00.
<br />7. ALL SPOT ELEVATIONS ALONG THE CURB -LINE INDICATE THE ELEVATION OF THE GUTTER, UNLESS NOTED OTHERWISE.
<br />8. NO LANDSCAPED SLOPES ARE TO EXCEED 3:1 (3 FEET HORIZONTAL TO 1 FOOT VERTICAL) UNLESS NOTED OTHERWISE.
<br />9. PROVIDE POSITIVE DRAINAGE FROM BUILDINGS AT ALL TIMES.
<br />10. PRIOR TO ISSUANCE OF BUILDING PERMITS, ALL NECESSARY EROSION CONTROL DEVICES MUST BE IN PLACE AND FUNCTIONING. THE CITY WILL INSPECT THE
<br />SITE TO DETERMINE ITS SUITABILITY FOR BUILDING ACTIVITIES. IF THE PUBLIC UTILITIES HAVE NOT BEEN INSTALLED AT THIS POINT, IT MAY BE NECESSARY TO
<br />WITHHOLD BUILDING PERMITS FOR VARIOUS LOTS TO ALLOW THE CONTRACTOR ADEQUATE SPACE TO PERFORM THIS WORK.
<br />11. ALL DEBRIS CREATED IN THE PROCESS OF CLEARING AND GRADING THE SITE SHALL BE REMOVED FROM THE SITE. THIS INCLUDES TREES AND SHRUBS.
<br />UNDER NO CIRCUMSTANCES SHALL THIS TYPE OF MATERIAL BE BURIED OR BURNED ON THE SITE.
<br />12. THE CONTRACTOR MAY STRIP AND SALVAGE TOPSOIL FOR POTENTIAL RE -SPREADING ON THE SITE, IF APPROVED BY THE LANDSCAPE ARCHITECT AND/OR
<br />SPECIFICATIONS. SIX INCHES OF TOPSOIL - AFTER COMPACTION - SHALL BE RE -SPREAD PRIOR TO SEEDING AND MULCHING. EXCESS TOPSOIL MAY BE
<br />REMOVED FROM THE SITE PROVIDING THERE IS ADEQUATE TOPSOIL REMAINING TO PROPERLY FINISH THE SITE AS NOTED ABOVE. THE TOPSOIL STRIPPING,
<br />STOCKPILING AND RE -SPREADING SHALL BE DONE IN ACCORDANCE TO, AND NOTED ON, THE APPROVED GRADING PLAN AND SPECIFICATIONS. THE CONTRACTOR
<br />SHALL REFER TO THE LANDSCAPE DRAWINGS AND SPECIFICATIONS FOR ANY SPECIAL TOPSOIL OR PLANTING REQUIREMENTS.
<br />13. ALL GRADING OPERATIONS SHALL BE CONDUCTED IN A MANNER TO MINIMIZE THE POTENTIAL FOR SITE EROSION. EROSION CONTROL MEASURES SHALL BE
<br />INSTALLED TO PREVENT SEDIMENT FROM RUNNING OFF ONTO ADJACENT PROPERTIES. ANY DAMAGE TO ADJACENT PROPERTIES MUST BE CORRECTED AND
<br />RESTORED AS SOON AS PERMISSION IS GRANTED FROM THE ADJACENT PROPERTY OWNER(S).
<br />14. IF CONSTRUCTION OF THE SITE WORK PROCEEDS THROUGH THE WINTER MONTHS, ANY DISTURBED AREAS OUTSIDE THE BUILDING FOOTPRINTS ARE TO BE
<br />MINIMALLY STABILIZED PRIOR TO MARCH 1, AS FOLLOWS: AREAS PLANNED TO RECEIVE PAVEMENTS ARE TO HAVE CLASS 5 BASE INSTALLED; ALL OTHER
<br />DISTURBED AREAS ARE TO BE SEEDED, STRAW MULCH PLACED, AND DISC -ANCHORED.
<br />15. WINTER MULCHING:
<br />15.A. SNOW MULCHING SHALL BE DEFINED AS MULCH MATERIAL SPREAD OVER THE TOP OF SNOW SO THAT THE MULCH MELTS THROUGH THE SNOW AND STICKS
<br />TO THE EXPOSED SOILS.
<br />15.13. FROZEN GROUND MULCHING SHALL BE DEFINED AS MULCH MATERIAL SPREAD OVER FROZEN GROUND. MULCH MATERIALS THAT DO NOT REQUIRE
<br />DISC -ANCHORING INTO THE SOIL MAY BE PLACED WITHOUT MODIFICATION. MULCH MATERIALS THAT REQUIRE DISC -ANCHORING MAYBE ANCHORED WITH
<br />HYDRAULIC SOIL STABILIZERS OR MAY BE FROZEN TO THE SOIL BY APPLYING WATER, AT A RATE OF 2000 GALLONS PER ACRE, OVER THE MULCH AS A
<br />SUBSTITUTION FOR DISC -ANCHORING.
<br />16. THE CONTRACTOR SHALL LIMIT THE DISTURBED AREA AS MUCH AS POSSIBLE.
<br />PROPOSED PLAN
<br />SYMBOLS
<br />CONSTRUCTION LIMITS
<br />SEDIMENT CONTROL LOG
<br />PROPERTY LINE
<br />SAWCUT LINE (APPROX.) - - - - - - - -
<br />PROPOSED CONTOUR
<br />sas
<br />DRAINAGE FLOW ARROW
<br />>>
<br />SPOT ELEVATION
<br />as.oa
<br />SOIL BORING
<br />is
<br />SB-1
<br />CONCRETE WASHOUT
<br />conlcBerE
<br />AREA
<br />w.o. nREA
<br />INDEPENDENT SCHOOL
<br />DISTRICT #728
<br />815 Highway 10
<br />Elk River, Minnesota 55330
<br />WOLD ARCHITECTS
<br />AND ENGINEERS
<br />332 Minnesota Street, Suite W2000
<br />Saint Paul, MN 55101
<br />woldae.com 1 651 227 7773
<br />BKBM ®.
<br />ENGINEERS
<br />6120 Earle Brown Drive, Suite 700
<br />Minneapolis, MN 55430
<br />Phone: (763) 843-0420
<br />Fax: (763) 843-0421
<br />www.bkbm.com
<br />2022 BKBM Professional Engineers, Inc.
<br />All rights reserved.
<br />This document is an instrument of service and is the property of BKBM
<br />Professional Engineers, Inc. and may not be used or copied without
<br />prior written consent.
<br />BKBM JOB NUMBER. 21114
<br />1 hereby certify that this plan, specification or report was
<br />prepared by me or under my direct supervision and that I am
<br />a duly Licensed Professional Engineer under the laws of the
<br />State of Minnesota.
<br />Nathaniel P. Anderson
<br />License Number: 59311 Date 09/20/2022
<br />Revisions
<br />Description Date Num
<br />Addendum #2 10/05/2022 1
<br />Comm: 202179B
<br />Date: 09/20/2022
<br />Drawn: WH
<br />Check: KAB North
<br />GRADING,
<br />DRAINAGE, AND
<br />EROSION
<br />CONTROL PLAN
<br />C2,.000
<br />
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