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PUBLIC WORKS AND SAFETY COMMITTEE Packet - 8/25/2020CITY OF MUSKEGO PUBLIC WORKS AND SAFETY COMMITTEE AGENDA 08/25/2020 6:30 PM Muskego City Hall, Council Chambers, W182 S8200 Racine Avenue CALL TO ORDER ROLL CALL STATEMENT OF PUBLIC NOTICE STATUS OF PROJECTS Discussion update. No formal action may be taken on the following: Great Water Alliance Hillendale Reconstruction CTH Y - Racine Avenue - Pilak Creek Tributary Structure Replacement NEW BUSINESS Discussion update and possible action may be taken on any or all of the following: Cobblestone Meadows - Public Improvements Approval Boxhorn Drive - Request for No Parking Signs Mill Valley Elementary School - Request for No Left Turn Sign NEW BUSINESS PLACED ON FILE (The following items have been placed on file for staff review. Upon completion of review, staff will submit a supplement detailing options and possible course action to committee members.) COMMUNICATIONS AND MISCELLANEOUS BUSINESS AS AUTHORIZED BY LAW Discuss Change of Day and Time for Future Meetings ADJOURNMENT NOTICE IT IS POSSIBLE THAT MEMBERS OF AND POSSIBLY A QUORUM OF MEMBERS OF OTHER GOVERNMENTAL BODIES OF THE MUNICIPALITY MAY BE IN ATTENDANCE AT THE ABOVE-STATED MEETING TO GATHER INFORMATION; NO ACTION WILL BE TAKEN BY ANY GOVERNMENTAL BODY AT THE ABOVE-STATED MEETING OTHER THAN THE GOVERNMENTAL BODY SPECIFICALLY REFERRED TO ABOVE IN THIS NOTICE. ALSO, UPON REASONABLE NOTICE, EFFORTS WILL BE MADE TO ACCOMMODATE THE NEEDS OF DISABLED INDIVIDUALS THROUGH APPROPRIATE AIDS AND SERVICES. FOR ADDITIONAL INFORMATION OR TO REQUEST THIS SERVICE, PLEASE CONTACT MUSKEGO CITY HALL, (262) 679-4145. Packet Page 1 CITY OF MUSKEGO Staff Report to Public Works and Safety Committee To: Public Works and Safety Committee From: Scott Kroeger, PE, PLS, Public Works and Development Director Subject: Cobblestone Meadows – Public Improvements Approval Date: August 25, 2020 The City of Muskego has reviewed the Cobblestone Meadows development plan set located on Janesville Road across from Park Drive. The most recent plan sheet has been attached. The development will have public roads, watermain, sanitary sewer, and storm sewer. All public infrastructure will be dedicated to the City of Muskego upon completion and acceptance of the project. The City of Muskego has reviewed the plans and given approval for all public infrastructure plans to move forward contingent upon all City of Muskego staff comments being addressed. Recommendation for Action by the Committee: Approve all public infrastructure for the Cobblestone Meadows Development contingent upon all City of Muskego staff comments being addressed. Page 1 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 2 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com X X X X X X X X X X IP MH POST GUY WV GV Page 2 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 3 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com X X X X X X X X X X IP MH POST GUY WV GV Page 3 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 4 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S SF Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com Page 4 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 5 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S SF Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com Page 5 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 6 www.walbecgroup.com (920) 757-7559 A WALBEC COMPANY Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 30'40'0 Page 6 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 7 www.walbecgroup.com (920) 757-7559 A WALBEC COMPANY Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 30'40'0 Page 7 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 8 www.walbecgroup.com (920) 757-7559 A WALBEC COMPANY Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 30'40'0 Page 8 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 9 www.walbecgroup.com (920) 757-7559 A WALBEC COMPANY Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 30'40'0 Page 9 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 10 www.walbecgroup.com (920) 757-7559 A WALBEC COMPANY Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 30'40'0 Page 10 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 11 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S PAVING NOTES: ROADWAY PAVEMENT 6" ASPHALTIC CONC. PAVEMENT (3-LIFTS) 2" UPPER (5LT 58-28S, 9.5 mm) 2-2" LOWER (4LT 58-28S, 12.5 mm) 8" CRUSHED AGGREGATE BASE COURSE 4" 3/4-INCH CRUSHED LIMESTONE T.B. STATE GRADATION #2 4" 1 1/4-INCH CRUSHED LIMESTONE T.B. STATE GRADATION #1 CONCRETE SIDEWALK 4" CONCRETE PAVEMENT 6" CRUSHED AGGREGATE BASE COURSE DRIVEWAYS 3" ASPHALTIC CONC. PAVEMENT 6" 1 1/4-INCH CRUSHED LIMESTONE T.B. SCALE IN FEET 30'060' PRELIMINARY NOT FOR CONSTRUCTION Toll Free (800) 242-8511 Milwaukee Area (414) 259-1181 Hearing Impaired TDD (800) 542-2289 www.DiggersHotline.com SCALE IN FEET 20'0 40' Page 11 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 12 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Page 12 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 13 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Page 13 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 14 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S 48" MIN. DIA. 6" MIN. 12" MAX. MA X . PR E C A S T C O N C R E T E MA N H O L E S E C T I O N SLOPE 1' - 4 " 2" MIN. 6" MIN. 1-1/2" STONE EC C E N T R I C CO N E S E C T I O N 6.5"24"6.5" 24" FLAT TOP SLAB NOTES: STORM MANHOLE 2'-0" 1. MANHOLE CONSTRUCTION TO MEET REQUIREMENTS OF ASTM C478. 2. PROVIDE FLAT TOP SLAB FOR MANHOLES 5' OR LESS IN DEPTH. FLAT TOP SLABS TO BE IN-BELL TYPE. 3. JOINTS SHALL BE WATERTIGHT. USE BUTYL RUBBER GASKET. 4. USE RUBBER GASKETS FOR PIPE CONNECTIONS. 5. ECCENTRIC CONE SECTION OF MANHOLE TO BE SET OUTSIDE OF VEHICULAR WHEEL PATH NEAR ℄ ROADWAY. RIM ELEV. SEE PLANS ADJUST TO FINISH GRADE WITH CONCRETE GRADE RINGS O RING OR MASTIC JOINTS CL N.T.S. BEDDING FOR REINFORCED CONCRETE PIPE WASHED, GRAVEL OR CRUSHED STONE MIN = 6" BACKFILL MATERIAL CONTAINING NO STONES LARGER THAN 3" AND NO HARD OR FROZEN LUMPS OF EARTH. EXCAVATED MATERIAL AS APPROVED BY ENGINEER OR SELECT BACKFILL COMPACTED BACKFILL O.D. + 12" STONE (WET TRENCH ONLY) MIN 12" MAX = O.D. + 24" SANITARY BEDDING WATER SERVICE COMPACTED BACKFILL MIN = 4" MIN = 24" OR O.D. + 6" O.D. + 12" STORMMIN = 4" MIN = 6" MIN = 6" TRENCH SHORING (TYP) BUILDING SERVICES N.T.S. PRECAST CONCRETE 6" MIN. GRANULAR BACKFILL CASTING: R-3501-R 6" MIN. 12" MAX. BACK OF CURB 1/2" POINTING PAVEMENT 2.5' X 3' ADJUST TO FINISH GRADE WITH CONCRETE GRADE RINGS OUTLET PIPE SEE PLAN FOR SIZE AND I.E. SOIL STABILIZATION FABRIC STORM INLET 6" SUMP DRAIN (TYP.) 18" SUMP COLLAR OR BOOT CONNECTION TO INLET N.T.S. N.T.S. CASTINGS: R-2471-D USED IN PAVEMENT AREAS R-2561 USED IN LANDSCAPE AREAS ELEVATION REFERED TO ON STORM SEWER PLANS HYDRANT ASSEMBLY TRACER WIRE DETAIL N.T.S. CITY OF MUSKEGO NOTES: 1. HYDRANT BRANCH MATERIAL SHALL BE PVC SDR-14 CLASS 200. 2. HYDRANT BRANCH SHALL BE FULLY RESTRAINED. 3. LOCATOR BOX SHALL BE ADJACENT TO HYDRANT. 4. DOUBLE POLYWRAP ALL VALVES, VALVE STEMS, FITTINGS, HYDRANT SHOE AND VERTICAL STACK. CONTRACTOR SHALL MAKE A SLIT OPENING IN THE BOTTOM OF THE HYDRANT SHOE POLYWRAP TO DRAIN. 5. CONTRACTOR SHALL PLUG ALL HYDRANTS BEING CONSTRUCTED IN GROUNDWATER. CONTRACTOR SHALL NOTIFY THE CITY OF ALL HYDRANTS THAT NEED TO BE PLUGGED. SANITARY MANHOLE THRUST BLOCK DETAIL N.T.S. Page 14 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 15 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S CATCH-ALL INLET PROTECTOR WITH STANDARD POLYESTER MESH REINFORCEMENT AND PREFABRICATED FILTER FABRIC BAG OR EQUIVALENT WOVEN GEOTEXTILE FABRIC: MIRAFI FILTERWEAVE 402 OR WISDOT APPROVED EQUIVALENT TOP OF CURB FILTER FABRIC SHALL EXTEND INTO INLET BASKET NOTE: USE 2X4 TO ANCHOR FILTER FABRIC IF NOT BACKFILLED TO TOP OF CURB. USE FILTER FABRIC TO COVER CURB BOX OPENING INLET PROTECTOR CENTERED IN OPENING UNDER GRATE MATCH INLET PROTECTOR TO CASTING & GRATE N.T.S. INLET PROTECTION 1. FOR USE IN INLETS LOCATED WITHIN THE PUBLIC RIGHTS-OF-WAY INCLUDING ALLEYS. CONSTRUCTION ENTRANCE N.T.S. NOTE: CONTRACTOR TO VERIFY LOCATION WITH OWNER 12' MIN . 12" MIN. 50' M I N . L E N G T H 3"-6" CLEAR STONE OVER GEOTEXTILE FABRIC 1 1 SILT FENCE ALONG SLOPES & OUTFALLS TYPICAL SECTION INSLOPE FL O W INSLOPE 8'- 0 " M A X . 14 " M I N 2 SEE N O T E 6 FLOW TRENCH DETAIL (WHEN ADDITIONAL SUPPORT REQUIRED) SILT FENCE TIE BACK 2 SILT FENCE DETAIL N.T.S. FLOW DIRECTION NOTE: ADDITIONAL POST DEPTH OR TIE BACKS MAY BE REQUIRED IN UNSTABLE SOILS ANCHOR STAKE MIN. 18" LONG FOLD 3" MAX. WOOD POSTS LENGTH 3' - 4' 20" MIN. DEPTH IN GROUND 4 28 " M A X PI P E F L O W SILT FENCE FABRIC SHALL BE STAPLED, USING AT LEAST 0.5-INCH STAPLES, TO THE UPSLOPE SIDE OF THE POSTS IN AT LEAST 3 PLACES FLOW DIRE C T I O N 1. SILT FENCE SHALL BE ANCHORED BY SPREADING AT LEAST 8-INCHES OF FABRIC IN A 4-INCH WIDE AND 6-INCH DEEP TRENCH OR 6-INCH DEEP V-TRENCH ON THE UPSLOPE SIDE OF THE FENCE. TRENCHES SHALL NOT BE EXCAVATED WIDER OR DEEPER THAN NECESSARY FOR PROPER INSTALLATION. 2. FOLD MATERIAL TO FIT TRENCH AND BACKFILL AND COMPACT TRENCH WITH EXCAVATED SOIL. 3. WOOD POSTS SHALL BE A MINIMUM SIZE OF 1.125-INCHES x 1.125-INCHES OF DRIED OAK OR HICKORY. 4. SILT FENCE TO EXTEND ABOVE THE TOP OF PIPE. 5. SILT FENCE CONSTRUCTION AND GEOTEXTILE FABRIC SHALL CONFORM TO WDNR TECHNICAL STANDARD 1056. 6. POST SPACING SHALL BE SELECTED BASED ON GEOTEXTILE FABRIC (8-FEET FOR WOVEN & 3-FEET FOR NON-WOVEN). STEP 1 STEP 2 OR JOINT (TWIST METHOD) FL O W DI R E C T I O N WOOD POST (TYP.) WOOD POST (TYP.) GEOTEXTILE FABRIC (TYP.) GEOTEXTILE FABRIC (TYP.) JOINT (HOOK METHOD) SEE N O T E 6 8'-0 " M A X . FL O W **GEOTEXTILE FABRIC 2' MIN GENERAL NOTES POST ** 3 FL O W DI R E C T I O N SILT FENCE SEAM NYLON CORD GROUND LINE FLOW DIRECTION GEOTEXTILE FABRIC ONLY EXCESS FABRIC GEOTEXTILE FABRIC TIEBACK BETWEEN FENCE POST AND ANCHOR BACKFILL & COMPACT TRENCH WITH EXCAVATED SOIL 1' MIN 10' MIN BALES EM B E D B A L E 4" I N T O G R O U N D 18 " (T Y P ) 30" M I N . PERIMETER CONTROL (STRAW BALES) 14" (TY P ) LENGTH OR EQUIVALENT ARE APPROXIMATE N.T.S. EMBED NOMINAL 2" X 2" X 30" MIN. WOOD STAKES (2 PER BALE) ALL DIMENSIONS NOTE: 1. BALES SHALL BE PLACED AT THE TOP OF SLOPE OR ON THE CONTOUR AND IN A ROW WITH ENDS TIGHTLY ABUTTING THE ADJACENT BALES. 2. EACH BALE SHALL BE EMBEDDED IN THE SOIL A MINIMUM OF 4", AND PLACED SO THAT BINDINGS ARE HORIZONTAL. 3. BALES SHALL BE SECURELY ANCHORED IN PLACE BY EITHER TWO STAKES OR RE-BARS DRIVEN THROUGH THE BALE. THE FIRST STAKE IN EACH BALE SHALL BE DRIVEN TOWARD THE PREVIOUSLY LAID BALE AT AN ANGLE TO FORCE THE BALES TOGETHER. STAKES SHALL BE DRIVEN FLUSH WITH THE BALE. 4. INSPECTION SHALL BE FREQUENT AND REPAIR REPLACEMENT SHALL BE MADE PROMPTLY AS NEEDED. 5. BALES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFULNESS SO AS NOT TO BLOCK OR IMPEDE STORM FLOW OR DRAINAGE. FRONT ELEVATION SLOPE VARIES SLOPE VARIES BOTTOM ELEVATION OF END BALE SHALL BE EQUAL TO OR GREATER THAN TOP OF LOWEST MIDDLE BALE. STAKES DRIVEN FLUSH WITH SOIL CONDITIONS PERMITS 4" NOTE: ALL DIMENSIONS ARE APPROXIMATE SECTION "A-A" WOOD STAKES (2 PER BALE) NOMINAL 2" X 2" X 30" MIN. LENGTH OR EQUIVALENT 14" (TY P ) 1. INSTALLED, THE MINIMUM HEIGHT OF DITCH CHECKS SHALL BE 10-INCHES AND SHALL NOT EXCEED A MAXIMUM HEIGHT OF 16-INCHES FOR MANUFACTURED OR BIODEGRADABLE MATERIALS. 2. DITCH CHECKS MUST BE INSTALLED WITH THE CENTER LOWER THAN THE SIDES FORMING A WEIR. 3. AT A MINIMUM, INSTALL ONE DITCH CHECK FOR EVERY TWO-FEET OF DROP IN THE CHANNEL. 4. DITCH CHECK SHALL, AT A MINIMUM, BE INSPECTED WEEKLY AND WITHIN 24- HOURS AFTER EVERY PRECIPITATION EVENT THAT PRODUCES 0.5-INCHES OF RAIN OR MORE DURING A 24-HOUR PERIOD. 5. SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH HALF OF THE HEIGHT OF THE LOWEST BALE. 6. DITCH CHECKS SHALL BE UTILIZED DURING ROUGH GRADING AND SHALL BE REMOVED ONCE FINAL GRADING AND CHANNEL STABILIZATION IS APPLIED. 7. DITCH CHECK CONSTRUCTION AND MAINTENANCE SHALL BE IN ACCORDANCE WITH WDNR TECHNICAL STANDARD (1062). EROSION MATTING SCOUR PROTECTION SHALL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH WDNR TECHNICAL STANDARD (1053). 30" M I N . 18 " (T Y P ) EM B E D B A L E 4" I N T O G R O U N D EMBED BALES CENTERED IN CHANNEL (EXTEND 1' MIN UP SIDESLOPES) FL O W DI R E C T I O N "A" PLAN VIEW FOR SCOUR PROTECTION USE: EROSION MAT FOR CHANNEL LINING. LAP MAT UNDER UPSTREAM BALES AND SECURE FABRIC WITH WOOD STAKES, AT 3 FOOT INTERVALS STAGGER JOINTS WITH A DOUBLE ROW "A" 6' M I N . NTS (STRAW BALES OR WADDLES) TEMPORARY DITCH CHECK ANCHOR SLOT BY BURYING THE TOP END OF MATTING IN A 6" DEEP TRENCH. EROSION CONTROL MATTING PROTECTING EXPOSED SURFACE OR SLOPE EROSION CONTROL MATTING DETAIL NOTES: 1. PRIOR TO THE INSTALLATION OF ANY EROSION CONTROL MATTING, ALL ROCKS, DIRT CLODS, STUMPS, ROOTS, TRASH AND ANY OTHER OBSTRUCTIONS WHICH WOULD PREVENT THE MAT FROM LAYING IN DIRECT CONTACT WITH THE SOIL SHALL BE REMOVED. 2. THE MATTING SHALL BE ANCHORED ALONG ITS ENTIRE PERIMETER WITH A 6"x6" ANCHOR TRENCH. AFTER MATTING IS LAID IN TRENCH, BACKFILL, AND COMPACT WITH SOIL OR GRAVEL. 3. THE MATTING SHALL BE ANCHORED TO THE GROUND USING 10 GAUGE WIRE STAPLES, 6" IN LENGTH BY 1" WIDE WITH A COVERAGE NOT LESS THAN 1 STAPLE PER EVERY 4 SQUARE FEET OF MATTING. 4. INSTALLATIONS SHALL ALSO BE IN ACCORDANCE WITH MANUFACTURERS RECOMMENDED GUIDELINES. 5. EROSION CONTROL MATTING SHALL BE ONE OF THE FOLLOWING: a. JUTE MAT COMPOSED OF A JUTE YARN WEAVED IN A BASIC MANNER AND FREE OF ANY DYE AND HAVING A MINIMUM UNIT WEIGHT OF 2.7 LBS. PER SQ. YARD. b. WOOD FIBER MAT COMPOSED OF WOOD FIBERS ENCASED IN A NETTING MADE OF NYLON, COTTON OR SIMILAR MATERIAL AND HAVING A MINIMUM UNIT WEIGHT OF 1.0 LBS. PER SQ. YARD. c. SYNTHETIC WEBBING MAT MADE OF POLYVINYL CHLORIDE POLYPROPYLENE MONOFILIMENTS HAVING A MINIMUM UNIT WEIGHT OF 11 OUNCES PER SQ. YARD AND A MINIMUM TENSILE STRENGTH OF 25 LBS. IN ALL DIRECTIONS. (ASTM D-1682.64) 6. MATTED AREAS MUST BE INSPECTED ON A WEEKLY BASIS, AND AFTER EACH SIGNIFICANT RAINFALL. BARE SPOTS, MISSING OR LOOSENED MATTING MUST BE IMMEDIATELY REPLACED AND/OR RE-ANCHORED. 7. STAPLES SHALL BE REMOVED FROM THE GROUND ONCE THE THREAT OF EROSION HAS PASSED AND PERMANENT VEGETATION HAS BEEN ESTABLISHED. AIR RELEASE DETAIL WI SEWER & WATER SPEC Page 15 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 16 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S WET POND #1 DATA ELEV TOP OF BERM 801.60 SPILLWAY 800.60 100-YR WSEL 800.55 2-YR WSEL 798.88 PERMANENT POOL 798.00 PERMANENT BOTTOM 792.00 WET POND #1 DIA INV SLOPE DISCHARGE PIPE 15" 798.00 1.00% RIM OUTLET STRUCTURE 801.60 ELEV TOP OF BAFFLE WALL 800.56 INV DIA ORIFICE #1 798.00 0.50' ORIFICE #2 799.35 0.83' SPILLWAY - SEE PLAN FOR LOCATION 100 YR DESIGN HWL 2 YR DESIGN HWL 6" TOPSOIL SEED AND EROSION MATTING SAFETY SHELF 10' MIN PERMANENT POOL PERMANENT BOTTOM 4:1 S L O P E 3:1 S L O P E NTS 10:1 SLOPE DISHARGE PIPE 4:1 S L O P E , S E E G R A D I N G P L A N S 15" I.E. 798.00 PERMANENT POOL 1 4 SAFETY SHELF 10' MIN 15" RCP DISCHARGE PIPE 1 3 NTS POND OUTFLOW PIPE TOP OF BAFFLE WALL 800.65 N.T.S. 48" MIN N.T.S. 799.35 HDPE ANIT-SEEP COLLAR STORM BEEHIVE GRATE AND FRAME (NEENAH R-2564 OR EQUAL) EMERGENCY SPILLWAY 800.60 1 4 ORIFICE #1 INV. 798.00 798.00 6" ORIFICE 18" SUMP WET POND PRECAST OUTLET STRUCTURE WET POND CROSS SECTION BAFFLE WALL (SHARP-CRESTED RECTANGULAR WEIR) HDPE ANTI-SEEP COLLAR TOP OF STRUCTURE 801.60 12" MIN CONCRETE BASE OPTIONAL 2' SEDIMENT STORAGE DURING CONSTRUCTION LINER: 12" MIN 2' NATIVE CLAY LINER WET POND 10" ORIFICE ORIFICE #2 INV. 799.35 800.56 4 1 NORMAL WATER LEVEL EXTEND EROSION MATTING 2' BELOW SPILLWAY ON POND SIDE 100-YR MAXIMUM WATER LEVEL 4 1 EROSION MATTING CLASS II TYPE C LONG TERM OUTFALL PROTECTION JUTE EROSION MATTING EROSION MATTING CLASS III TYPE B PERMANENT OUTFALL PROTECTION, NORTH AMERICAN GREEN VMAX SC250 OR EQUIVALENT (TYP.) EMBANKMENT ORIGINAL GROUND TOE OF BERM EMERGENCY SPILLWAY ELEV. 800.60 PROPOSED TOP OF BERM ELEV. 801.60' 10' 1' F R E E B O A R D PROPOSED EMERGENCY SPILLWAY WET POND 4" TOPSOIL 3 1ELEV. 801.10' ELEV. 800.60' PROPOSED TOP OF BERM ELEV. 801.60'18' EROSION MATTING CLASS III TYPE B PERMANENT OUTFALL PROTECTION, NORTH AMERICAN GREEN VMAX SC250 OR EQUIVALENT (TYP.) EROSION MATTING CLASS II TYPE C LONG TERM OUTFALL PROTECTION JUTE EROSION MATTING 4" TOPSOIL 798.00 800.55 15" RCP INV. 798.00 15" RCP INV. 798.00 15" RCP INV. 798.00 15" RCP INV. 797.80 12 " m i n 18" min18" min 18 " m i n Page 16 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 17 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Page 17 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 18 ww w . w a l b e c g r o u p . c o m (9 2 0 ) 7 5 7 - 7 5 5 9 A W A L B E C C O M P A N Y CO B B L E S T O N E M E A D O W S Page 18 of 18 Cobblestone Meadows - Public Improvements Approval Packet Page 19 CITY OF MUSKEGO Staff Report to Public Works and Safety Committee To: Public Works and Safety Committee From: Scott Kroeger, PE, PLS, Public Works and Development Director Subject: Request for no parking signs along Boxhorn Drive, starting at AJ Bar’s entrance and going 750 feet in both directions Date: August 25, 2020 A request has been made to the Public Work and Safety Committee to install no parking signs along Boxhorn Drive starting at AJ Bar’s entrance and going 750 feet in both directions. The parking restrictions would be on one side of the road only. Currently, there are no parking restrictions on Boxhorn Drive. I have attached a map for your review. Please remember, once “No Parking” signs go up they affect all people on that road. Holidays, graduations, retirements, and similar parties/events could be affected by these signs. Recommendation for Action by the Committee: The Committee should listen to all the discussion and make a recommendation. Again “No Parking” signs go up they affect all people on that road. Holidays, graduations, retirements, and similar parties/events could be affected by these signs. Page 1 of 2 Boxhorn Drive - Request for No Parking Signs Packet Page 20 ^_ B O XHO RN DR 0 375 750Feet ¯ No Parking ^_AJ's Bar Legend AJ's Barand Grill Page 2 of 2 Boxhorn Drive - Request for No Parking Signs Packet Page 21 CITY OF MUSKEGO Staff Report to Public Works and Safety Committee To: Public Works and Safety Committee From: Scott Kroeger, PE, PLS, Public Works and Development Director Subject: Mill Valley School – No Left Turn Sign Request Date: August 25, 2020 Mill Valley School has requested a “No Left Turn” Sign for drivers leaving Mill Valley School onto Hillendale Drive. The school will be putting up their own sign as well on their property. The school has approximately 500 students. The school needs for traffic to flow into and out of the school during morning drop off and afternoon pick up the students. This sign would force drivers exiting the school grounds to take a right turn only onto Hillendale Drive heading south. Hopefully, the sign provides for a smoother and safer traffic pattern at Mill Valley School during morning drop off and pick up of students. I have provided an aerial showing the sign location. The sign would be like the one below with the appropriate dates and time. The sign would say “8:45 AM - 9:15 AM, 3:30 PM – 4:00 PM Mon – Fri” Recommendation for Action by the Committee: Approve the sign request by Mill Valley School. Page 1 of 2 Mill Valley Elementary School - Request for No Left Turn... Packet Page 22 Page 2 of 2 Mill Valley Elementary School - Request for No Left Turn... Packet Page 23