|
VA UGHAN'S 1ST ADDITION
<br />GRADING, DRAINAGE, AND EROSION CONTROL PLAN
<br />0
<br />30 60
<br />SC
<br />AISA
<br />LOTS
<br />ASA
<br />Edgg Of frVetland As Delineated
<br />By Wenck Associates -
<br />On October 23, 2007
<br />ae4
<br />/ f, 00DPLAIWL
<br />FILL X200 C`( ''.
<br />\:01 PG EMEND
<br />\ \ c 1
<br />FLOODPLAIN ";
<br />CWPENSATORY
<br />STORAGE = 204 CI,-
<br />dic s,
<br />Total Lot Area: 147,236 sq. ft.
<br />Total Impervious Area: 2,964 sq. ft.
<br />Impervious Surface Coverage: 2.01X
<br />Upland Lot Area: 20,127 sq. ft.
<br />Upland Impervious Area: 2,964 aq. ft.
<br />Upland Impervious Coverage: 14.73%
<br />Shore Impact Zone Area: 17,065 sq. ft.
<br />Grading Area Within Zone: 12,565 sq. ft. (73.6%)
<br />Floodplaln Fill Area Within Zone: 3,017 sq. ft. (17.7X)
<br />GRADING NOTES
<br />RCWD Floodplain Elevation: 887.6
<br />-Ordinary High Water Elevation: 883.7
<br />a
<br />is \\ L &J• , _,
<br />...,::,^1. ��
<br />5E410
<br />GAR: 895.0
<br />LFE: 891.0
<br />FEE: 895.7
<br />O&TL_ O T A
<br />V�
<br />1
<br />I �
<br />'1•'11 1C '
<br />eit. 894.5 \�
<br />THE EXISTING WELL SHALL BE REMOVED IN ACCORDANCE WITH ALL FEDERAL, STATE, AND LOCAL REQUIREMENTS.
<br />PROPOSED CONTOURS REPRESENT FINISHED SURFACE ELEVATIONS. SPOT ELEVATIONS ALONG EXISTING CURB DENOTE TOP
<br />OF CURB.
<br />EXISTING UTILITIES SHOWN ON THESE PLANS ARE BASED ON RECORD DRAWINGS AND, WHERE POSSIBLE, MEASUREMENTS
<br />TAKEN IN THE FIELD. THE INFORMATION I5 NOT TO BE REUED ON AS BEING EXACT OR COMPLETE CONTRACTOR SHALL
<br />CONTACT THE APPROPRIATE UTILITY COMPANIES AT LEAST 48 HOURS PRIOR TO EXCAVATION, TO REQUEST EXACT FIELD
<br />LOCATION OF UTIUTIES. THE CONTRACTOR IS RESPONSIBLE FOR RELOCATING ALL EXISTING UTIUTIES WHICH CONFUCT WITH
<br />THE PROPOSED IMPROVEMENTS SHOWN ON THE PLANS.
<br />CONTRACTOR TO CALL GOPHER STATE ONE CALL (1 -800- 252 -1166) 48 HOURS PRIOR TO EXCAVATION FOR LOCATIONS OF
<br />UTILITIES.
<br />CONTRACTOR REQUIRED TO PROTECT THE TREES TO BE SAVED. SHOULD ANY PORTION OF THE TREE BRANCHES REQUIRE
<br />REMOVAL TO PERMIT OPERATION OF THE CONTRACTOR'S EQUIPMENT, NE CONTRACTOR SHALL OBTAIN THE SERVICES OF A
<br />PROFESSIONAL TRIMMING SERVICE TO TRIM THE TREES. SHOULD THE CONTRACTOR'S OPERATIONS RESULT IN THE BREAKING
<br />OF ANY LIMBS, THE BROKEN UMBS SHOULD BE REMOVED IMMEDIATELY AND CUTS SHALL BE PROPERLY PROTECTED TO
<br />MINIMIZE ANY LASTING DAMAGE. NO TREES SHALL BE REMOVED WITHOUT AUTHORIZATION BY THE ENGINEER. COSTS FOR
<br />TRIMMING SERVICES SHALL BE CONSIDERED INCIDENTAL TO THE GRADING CONTRACT.
<br />CONTRACTOR SHALL STRIP, STOCKPILE AND RE— SPREAD SUFFICIENT TOPSOIL TO PROVIDE A MINIMUM FOUR INCH DEPTH TO ALL
<br />DISTURBED AREAS TO BE SODDED OR SEEDED.
<br />THE PROPOSED GRADING PLAN INDICATES FINAL GRADING AFTER THE HOUSES ARE CONSTRUCTED. THE CONTRACTOR SHALL
<br />APPLY A HOLDDOWN OF 2.25' ACROSS THE BUILD PAD LOCATIONS DURING THE GENERAL GRADING OF THE SITE THE
<br />FINISHED BUILDING SUBGRADE ELEVATION SHALL NOT VARY BY MORE THAN 0.10 FEET ABOVE OR BELOW THE PROPOSED
<br />ELEVATION. STREET OR PARKING AREA SUBGRADE ELEVATION SHALL NOT VARY BY MORE THAN 0.05 FEET ABOVE OR
<br />BELOW THE PRESCRIBED ELEVATION. AREAS TO RECEIVE TOPSOIL SHALL BE GRADED TO WITHIN 0.10 FEET OF THE
<br />REQUIRED ELEVATION UNLESS DIRECTED OTHERWISE BY THE ENGINEER. TOPSOIL SHALL BE GRADED TO WITHIN Si INCH OF
<br />THE SPECIFIED THICKNESS.
<br />THE CONTRACTOR SHALL COMPLY WITH THE REQUIREMENTS OF THE MINNESOTA POLLUTION CONTROL AGENCY — NATIONAL
<br />POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. CONTRACTOR SHALL BE A C0— APPLICANT WITH THE OWNER.
<br />THE CONTRACTOR SHALL COMPLETE THE REQUIRED INSPECTION REPORTS AND BE RESPONSIBLE FOR MAINTENANCE OF THE
<br />EROSION CONTROL DEVICES IN ACCORDANCE WITH THE NPDES PERMIT AND THE SWPPP FOR THIS PROJECT.
<br />EROSION CONTROL NOTES
<br />R
<br />OCK- CONSTRUGTIQN ENiRANCE�
<br />A
<br />/
<br />'"
<br />N
<br />t
<br />THE CONTRACTOR SHALL ASSUME COMPLETE RESPONSIBILITY FOR CONTROLLING ALL SILTATION AND EROSION OF THE
<br />PROJECT AREA. ALL EROSION CONTROL AND SILTATION CONTROL MEASURES SHALL COMPLY WITH MINNESOTA'S BEST
<br />MANAGEMENT PRACTICES MANUAL THE CONTRACTOR SHALL USE WHATEVER MEANS NECESSARY TO CONTROL EROSION AND
<br />SILTATION INCLUDING, BUT NOT UNITED 70, STAKED STRAW BALES, ROCK ENTRANCES AND /OR SILT FENCES. CONTROL
<br />SHALL COMMENCE WITH GRADING AND CONTINUE THROUGHOUT THE PROJECT UNTIL ACCEPTANCE OF WORK BY 7HE OWNER.
<br />THE CONTRACTOR'S RESPONSIBILITY INCLUDES: ALL DESIGN AND IMPLEMENTATION AS REQUIRED TO PREVENT EROSION AND
<br />THE DEPOSITING OF SILT. THE OVER MAY, AT HIS /HER OPTION, DIRECT THE CONTRACTOR IN HIS/HER METHODS AS
<br />DEEMED FIT TO PROTECT PROPERTY AND IMPROVEMENTS. ANY DEPOSITING OF SILT OR MUD ON NEW OR EXISTING
<br />PAVEMENT OR IN EXISTING STORM SEWERS OR SWALES SHALL BE REMOVED AFTER EACH RAIN AND AFFECTED AREAS
<br />CLEANED TO THE SATISFACTION OF THE OWNER, ALL AT THE EXPENSE OF THE CONTRACTOR.
<br />ALL EROSION CONTROL MEASURES MUST BE INSTALLED PRIOR TO COMMENCEMENT OF GRADING OPERATIONS AND BE MAINTAINED
<br />UNTIL ALL DISTURBED AREAS ON THE SITE HAVE BEEN RESTORED.
<br />TEMPORARY EROSION CONTROL TO BE PLACED AROUND STORM DRAIN STRUCTURES DURING CONSTRUCTION.
<br />SEDIMENT SHALL BE REMOVED FROM ALL SEDIMENT CONTROL DEVICES AS NECESSARY AND MUST BE REMOVED IF DESIGN
<br />CAPACITY HAS BEEN REDUCED BY FIFTY PERCENT.
<br />A STABILIZED CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR
<br />DURATION OF PROJECT.
<br />ALL SLOPES 3:1 OR STEEPER, NOT TO BE SODDED AND GREATER THAN EIGHT FEET IN HEIGHT, SHALL HAVE EROSION CONTROL
<br />FABRIC INSTALLED.
<br />WHEN THE SITE GRADING CONSTRUCTION IS COMPLETED, THE CONTRACTOR SHALL SEED AND MULCH THOSE AREAS AS
<br />DIRECTED BY THE OWNER WITHIN 48 HOURS OF GRADING COMPLETION. THE SEEDING SHALL COMPLY WITH MN/DOT
<br />SPECIFICATION NO. 3876, AT A RATE OF 50 LBS /ACRE THE SEEDED AREA SHALL BE MULCHED. THE MULCH SHALL APPLY
<br />WITH MN/DOT SPECIFICATION 3882, TYPE 1. THE MULCH SHALL BE APPLIED AND ANCHORED IN ACCORDANCE WITH MN/DOT
<br />SPECIFICATION NO. 2575.3, F1. MULCH SHALL BE APPUED AT THE RATE OF 2 TONS PER ACRE. THE MULCH SHALL BE
<br />ANCHORED WITH A DISC, CLODBUSTER OR OTHER APPROVED EQUIPMENT.
<br />HAA
<br />GRADING LEGEND
<br />SF
<br />1.3%
<br />EXISTING CONTOURS
<br />PROPOSED CONTOURS
<br />SILT FENCE
<br />DRIVEWAY SLOPE
<br />N FEET
<br />-4)-1 45,
<br />rtb
<br />LOCATION MAP
<br />NOT 10 SCALE
<br />CSJJ4 60.10
<br />N C) 4, 4- Ntk 4,'I
<br />J 1
<br />SECTIONS 27, & 28, TOWNSHIP 31,
<br />RANGE 22
<br />ANOKA COUNTY, MINNESOTA.
<br />INFILTRATION NO1 ES
<br />A. WHEN THE SITE GRADING CONSTRUCTION IS COMPLETED, THE CONTRACTOR SHALL
<br />SEED AND MULCH THOSE AREAS AS DIRECTED BY 711E OWNER WITHIN 48 HOURS OF
<br />GRADING COMPLETION. THE SEEDING SHALL COMPLY WITH MN/DOT SPECIFICATION NO. 3876
<br />AT A RATE OF 50 LBS /ACRE. THE INFILTRATION BASIN BOTTOM SHALL BE SEEDED WITH
<br />NDOT SEEDING MIX 350. THE SEEDED AREA SHALL BE MULCHED. THE MULCH SHALL
<br />APPLY WITH MN/DOT SPECIFICATION 3882, TYPE 1. THE MULCH SHALL BE APPLIED AND
<br />ANCHORED IN ACCORDANCE WITH MN/DOT SPECIFICATION N0. 2575.3, F1. MULCH SHALL
<br />BE APPUED AT THE RATE OF 2 TONS PER ACRE. THE MULCH SHALL BE ANCHORED
<br />IITH A DISC, CLODBUSTER OR OTHER APPROVED EQUIPMENT. ALL FILTRATION AREAS
<br />SHALL BE KEPT OFFUNE UNTIL FINAL STABILIZATION IS COMPLETE.
<br />-� IS
<br />W4U 0 S N THE
<br />CI'T'Y OF LINO LAKES
<br />B. HEAVY EQUIPMENT SHALL BE KEPT OUT OF IN
<br />COMPACTION OF SOILS.
<br />C. THE INFILTRATION BASIN SHALL BE GRADED FIR
<br />INSTALLED. THE CONTRACTOR SHALL TAKE ALL NE
<br />INFILTRATION CAPACITY IS MAINTAINED DURING CON!
<br />TRATI
<br />"SA -
<br />tUCTI
<br />84
<br />VAUGHAN'S 1ST ADDITION
<br />LINO LAKES, MINNESOTA
<br />DE9wED
<br />KTG
<br />PRO.EC1 1
<br />2003.001
<br />DATE
<br />11/29/07
<br />0600
<br />3
<br />
|