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HomeMy WebLinkAbout22_C4.2_Grading and Drainage Plan (cont.)_Gallatin Subaru_5-21-2020> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 4793 . 0 4793.5 4794.0 47 9 2 . 0 47 9 1 . 0 47 9 2 . 0 47 9 1 . 0 GAS GAS GAS GAS GAS GAS GAS GASUGPUGPUGPUGPUGPUGP GASGASGASGASGAS G A S G A S G A S G A S G A S G A S SEWSEWSEWSEWSEWSEWSEWSEW S E W S E W S E W S E W S E W S E W SEW>>>>>>>>>4790.5 4789.5 4788.5 4788.5 4789.5 4790.5-1.0%-1.8%4''W 4''W 4''W 4''W 4''W 4''W2''W 2''W 2''W 2''W 2''W 2''W GASGASGASGASGASGASGAS G A S G A S G A S G A S G A S G A S SEWSEWSEWSEW S E W S E W S E W S E W S E W S E W GASGASGASGASGASGAS WAT WAT > > 4790.54792.0 4790.0 4791.0 4792.0 GALLATIN SUBARU 31910 FRONTAGE ROAD BOZEMAN, MT 59715 D A T E : _ _ _ _ _ _ _ _ _ _ 0 3 / 0 3 / 2 0 2 0 5/28/2020 11:52:20 AM M:\193290\Drawings\Construction Drawings\4 - STRM.dwg D a r w i n L i n d a h l A r c h i t e c t s , P . A . e - m a i l : l i n d a h l a r c h @ g m a i l . c o m PROPOSED FACILITY FOR: D r a w i n g : R e v i s i o n s : N o : R e v i s i o n : D a t e : S h e e t N o : C e r t i f i c a t i o n : T H I S D R A W I N G A N D T H E I N F O R M A T I O N T H E R E I N I S T H E P R O P E R T Y O F D A R W I N L I N D A H L A R C H I T E C T S , P . A . I T S U S E B Y T H E H O L D E R O R D I S C L O S U R E T O O T H E R S W I T H O U T T H E W R I T T E N P E R M I S S I O N O F D A R W I N L I N D A H L A R C H I T E C T S , P . A . I S P R O H I B I T E D . I T C O N T A I N S P R O P R I E T A R Y A N D C O N F I D E N T I A L I N F O R M A T I O N O F D A R W I N L I N D A H L A R C H I T E C T S , P . A . R E P R O D U C T I O N O F T H E M A T E R I A L H E R E I N W I T H O U T W R I T T E N P E R M I S S I O N O F D A R W I N L I N D A H L A R C H I T E C T S , P . A . V I O L A T E S T H E C O P Y W R I T E L A W S O F T H E U N I T E D S T A T E S A N D W I L L S U B J E C T T H E V I O L A T O R S T O L E G A L P R O S E C U T I O N . C O P Y R I G H T © 2 0 1 8 B Y D A R W I N L I N D A H L A R C H I T E C T S , P . A . 4 1 2 4 Q u e b e c A v e . N o r t h , S u i t e 1 0 6 M i n n e a p o l i s , M i n n e s o t a 5 5 4 2 7 P h : 7 6 3 . 5 6 0 . 0 4 4 8 F a x : 7 6 3 . 5 6 0 . 0 4 4 1 2 3 0 4 N 7 t h A v e . S t e . L B o z e m a n , M T 5 9 7 1 5 T e l : ( 4 0 6 ) 5 8 7 . 2 7 8 1 w w w . h y a l i t e e n g . c o m F a x : ( 4 0 6 ) 5 2 2 . 9 2 2 5 M O N T A N A B R E T T C . N o . 2 9 1 0 6 P E M E G A A R D P E F O R S O I L N A S R E N I G ENE 1 C I T Y R E - S U B M I T T A L 5 / 2 1 / 2 0 2 0 G R A D I N G A N D D R A I N A G E P L A N ( C O N T . ) C 4 . 2 0 ' 1 0 ' 2 0 ' 3 0 ' 0 ' 1 0 ' 2 0 ' 3 0 ' 0 ' 1 0 ' 2 0 ' 3 0 ' EXTENDED DETENTION POND ATOP OF POND = 4790.50BTM OF POND = 4788.50SEE DETAIL 18/C5.3EXTENDED DETENTION POND BTOP OF POND = 4792.00BTM OF POND = 4790.00SEE DETAIL 18/C5.3 D E T E N T I O N P O N D C T O P O F P O N D = 4 7 9 2 . 5 0 B T M O F P O N D = 4 7 9 1 . 0 0 S E E D E T A I L 1 8 / C 5 . 3 E X I S T I N G R O A D S I D E D I T C H EXISTING ROADSIDE DITCH E M E R G E N C Y O V E R F L O W S P I L L W A Y S E E D E T A I L 2 1 / C 5 . 3 OUTLET PIPE 12 " A 2 0 0 0 P V C - D A Y L I G H T TO EXISTING R O A D S I D E D I T C H LENGTH = 30'SLOPE = 0.5%INV OUT =4788.3 5 O U T L E T S T R U C T U R E S E E D E T A I L 1 9 / C 5 . 3 & 2 0 / C 5 . 3 O U T L E T P I P E 1 2 " A 2 0 0 0 P V C D A Y L I G H T T O E X I S T I N G D I T C H L E N G T H = 1 6 ' S L O P E = 0 . 5 % I N V O U T = 4 7 9 0 . 9 2 6 ' X 6 ' G R A V E L P O N D D R A I N S E E D E T A I L 2 0 / C 5 . 3 & 2 2 / C 5 . 3 4 : 1 S L O P E 4:1 SLOPE 4:1 SLOPE4:1 SLOPE 4:1 SLOPE 4 : 1 S L O P E F L O W O V E R F O R E B A Y M H W / R I P R A P T O P O N D B T M R I M E L E V = 4 7 9 2 . 5 0 S E E D E T A I L 2 6 / C 5 . 4 EMERGENCY OVERFLOW SPILLWAYSEE DETAIL 21/C5.3EMERGENCY OVE R F L O W SPILLWAY SEE DETAIL 2 1 / C 5 . 3 OUTLET PIPE 12" A2000 PVC- D A Y L I G H T TO EXISTING ROADSI D E D I T C H LE N G T H = 3 5 ' SLO P E = 0 . 5 % INV OU T = 4 7 8 9 . 8 3 F L O W O V E R F O R E B A Y M H W / R I P R A P T O P O N D B T M R I M E L E V = 4 7 9 2 . 5 0 S E E D E T A I L 2 6 / C 5 . 4 6' X 6' GR A V E L P O N D D R A I N SEE DET A I L 2 0 / C 5 . 3 & 2 2 / C 5 . 3 6 ' X 6 ' G R A V E L P O N D D R A I N S E E D E T A I L 2 0 / C 5 . 3 & 2 2 / C 5 . 3 FLOW OVER FOREBAYMH W/ RIP RAP TOPOND BTMRIM ELEV = 4790.50SEE DETAIL 26/C5.4 F L O W O V E R F O R E B A Y M H W / R I P R A P T O P O N D B T M R I M E L E V = 4 7 9 2 . 0 0 S E E D E T A I L 2 6 / C 5 . 4 FLOW O V E R F O R E B A Y MH W / R I P R A P T O P O N D B T M RIM E L E V = 4 7 9 2 . 0 0 SEE D E T A I L 2 6 / C 5 . 4 FLOW OVER FOREBAYMH W/ RIP RAP TOPOND BTMRIM ELEV = 4792.00SEE DETAIL 26/C5.4 OUTLET S T R U C T U R E SEE DET A I L 1 9 / C 5 . 3 & 2 0 / C 5 . 3 OUTLET STRUCTURESEE DETAIL 19/C5.3 & 20/C5.3 G R A S S E D A R E A ( T Y P . ) E X I S T I N G S W A L E EXISTING SWALE