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CATWALK WITH WIRE MESH WALKWAY (Existing) X t4' COBBLE I ■ I —ELEI ArioN 738790' (Existing) EXISTING GROUND id' COBBLE (Existingl )ACED CONCRETE STRUCTURE (Existing) HG -8 DISCHARGE STRUCTURE MODIFICATION FRONT VIEW SCALE 10 20' i ee! EXISTING GROUND WATERPROOF GROUT PROPOSED PERMANENT WATER LEVEL 7384.80' t4-- PROPOSED INVERT ELEVATIONJ 7384.80' 18' CMP OUTLET PIPE WITH GATED VALVE (Existing) INVERT ELEVATION 738/50' t4' COBBLE (Existingl , t6" ° ° I ° I n ° ° b _____ _ 4, 1° I PROPOSED ° c° ° 4' HOPE DECANT -------------- ° CATWALK WITH WIRE MESH WALKWAY (Existingl NOTES; 1.) 1995 Pond Bottom Elevation & 12" CMP Riser Elevation Taken From 1995 Sediment Survey, Performed By Epp & Associates, October 1995, X 2.) As -Built Emergency Spillway Invert Elevations & As -Built Pond Bottom Elevation Taken From Exhibit EXISTING GROUND U -1, Pond HG -8 Emergency Spillway TR, Submitted October 19, 1985. 3.) Existing Discharge Structure Features & Elevations Taken From Exhibit U -2, Pond HG -8 Revision, Submitted August 10, 1987. 4.) Concrete Structure Around Proposed 4" HDPE Will Be Sealed With A Waterproof Grout. TION 738290' ° d 12' CMP RISER PIPE (Existing) s=o.0264 Ft. /Ft. �- -------- - - - - -- ° 18' CMP OUTLET PIPE (Existing! HG -8 DISCHARGE STRUCTURE MODIFICATION SIDE VIEW 7' -a. 18' CMP OUTLET PIPE WITH GATED VALVE I (Existing! SCALE 0 1.0' Feel 8.0' 8' REINFORCED CONCRETE STRUCTURE (Existing) HG -8 DISCHARGE STRUC TURF MODIFICATION PLAN VIEW i EXISTING GROUND CATWALK WITH WIRE MESH WALKWAY (Existingl •�GK G vp•� °� 28431 > F FrL r \� PROFESSIONAL ENGINEER'S STATEMENT 1, Patrick G. Corser, state that this map was prepared under my supervision and al/ the informalio led hereon is true and correct the st of m knowledge and informalio . ale Patrick G. Corser, CO P.E. 28431 SCALE: IDRAWING No 80499 See Scale Bar Figure 2 T7 ...... I ... I—- .......... 19P?POvED 7/2 -v/96 IIII��IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII N X 4— 12' CMP' •. PIPE PROPOSED PER MANENT \�� \� WATER LEVEL • , e (Existing)? (Existing)? 7384.80' '' PROPOSED i i• ° ' ' ° 4' HOPE DECANT. ° I PROPOSED 4' HDPE, °• DECANT PIPE ' ' /� / /�� 'INVERT ELEVATION I .P 18' CMP OUTLET PIPE _ '• .° •• WITH GATED VALVE-' , %� j\�� • a ' lExistingl .• ° ° • • •• • ELEVATION' •° .INVERT 738150', '. .. . , EXISTING GROUND id' COBBLE (Existingl )ACED CONCRETE STRUCTURE (Existing) HG -8 DISCHARGE STRUCTURE MODIFICATION FRONT VIEW SCALE 10 20' i ee! EXISTING GROUND WATERPROOF GROUT PROPOSED PERMANENT WATER LEVEL 7384.80' t4-- PROPOSED INVERT ELEVATIONJ 7384.80' 18' CMP OUTLET PIPE WITH GATED VALVE (Existing) INVERT ELEVATION 738/50' t4' COBBLE (Existingl , t6" ° ° I ° I n ° ° b _____ _ 4, 1° I PROPOSED ° c° ° 4' HOPE DECANT -------------- ° CATWALK WITH WIRE MESH WALKWAY (Existingl NOTES; 1.) 1995 Pond Bottom Elevation & 12" CMP Riser Elevation Taken From 1995 Sediment Survey, Performed By Epp & Associates, October 1995, X 2.) As -Built Emergency Spillway Invert Elevations & As -Built Pond Bottom Elevation Taken From Exhibit EXISTING GROUND U -1, Pond HG -8 Emergency Spillway TR, Submitted October 19, 1985. 3.) Existing Discharge Structure Features & Elevations Taken From Exhibit U -2, Pond HG -8 Revision, Submitted August 10, 1987. 4.) Concrete Structure Around Proposed 4" HDPE Will Be Sealed With A Waterproof Grout. TION 738290' ° d 12' CMP RISER PIPE (Existing) s=o.0264 Ft. /Ft. �- -------- - - - - -- ° 18' CMP OUTLET PIPE (Existing! HG -8 DISCHARGE STRUCTURE MODIFICATION SIDE VIEW 7' -a. 18' CMP OUTLET PIPE WITH GATED VALVE I (Existing! SCALE 0 1.0' Feel 8.0' 8' REINFORCED CONCRETE STRUCTURE (Existing) HG -8 DISCHARGE STRUC TURF MODIFICATION PLAN VIEW i EXISTING GROUND CATWALK WITH WIRE MESH WALKWAY (Existingl •�GK G vp•� °� 28431 > F FrL r \� PROFESSIONAL ENGINEER'S STATEMENT 1, Patrick G. Corser, state that this map was prepared under my supervision and al/ the informalio led hereon is true and correct the st of m knowledge and informalio . ale Patrick G. Corser, CO P.E. 28431 SCALE: IDRAWING No 80499 See Scale Bar Figure 2 T7 ...... I ... I—- .......... 19P?POvED 7/2 -v/96 IIII��IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII