2012-05-29_REVISION - C1980007

• Permit No: C1980007
• IBM Index Class Name: REVISION
• Doc Date: 5/29/2012
• Doc Name: Refuse Pile Expansion East Haul Road Slide Repair Documentation, Slope Stability Monitoring Instrum
• From: BARR Resourceful Naturally
• To: DRMS
• Type & Sequence: TR128
• Email Name: JRS
• Email Name: DIH
• Media Type: D
• Archive: No

2012 Construction Revision Type 1124 -hr 100 -yr, 24 -hr Rainfall = 2.80"
Prepared by {enter your company name here} Printed 5/10/2012
HydroCAD© 10.00 s/n 00604 © 2011 HydroCAD Software Solutions LLC Page 6
Time span =0.00 -80.00 hrs, dt =0.01 hrs, 8001 points
Runoff by SCS TR -20 method, UH =SCS
Reach routing by Stor- Ind +Trans method - Pond routing by Stor -Ind method
Subcatchment 1S: Area 1 Runoff Area =3.530 ac 0.00% Impervious Runoff Depth= 2.16"
Flow Length =350' Slope= 0.0300'/' Tc =7.6 min CN =94 Runoff =12.04 cfs 0.635 af
Subcatchment 2S: Area 2 Runoff Area =3.310 ac 0.00% Impervious Runoff Depth= 2.16"
Flow Length =720' Tc =2.3 min CN =94 Runoff =13.44 cfs 0.595 af
Subcatchment 3S: Area 3 Runoff Area =6.170 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length= 1,193' Tc =7.1 min CN =70 Runoff =5.94 cfs 0.312 af
Subcatchment 4S: Area 4 Runoff Area =7.270 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length= 1,360' Tc =9.5 min CN =70 Runoff =6.26 cfs 0.367 af
Subcatchment 5S: Area 5 Runoff Area =6.280 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length= 1,180' Tc =9.0 min CN =70 Runoff =5.53 cfs 0.317 af
Subcatchment 6S: Area 6 Runoff Area =5.580 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length= 1,136' Tc =8.9 min CN =70 Runoff =4.94 cfs 0.282 of
Subcatchment 7S: Area 7 Runoff Area =1.910 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length =812' Tc =6.3 min CN =70 Runoff =1.91 cfs 0.096 af
Subcatchment 8S: Area 8 Runoff Area =4.590 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length =916' Tc =6.6 min CN =70 Runoff =4.52 cfs 0.232 af
Subcatchment 9S: Area 9 Runoff Area =4.300 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length =728' Tc =10.1 min CN =70 Runoff =3.61 cfs 0.217 of
Subcatchment 10S: Area 10 Runoff Area =2.980 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length =624' Tc =9.6 min CN =70 Runoff =2.56 cfs 0.150 af
Subcatchment 11S: Area 11 Runoff Area =2.530 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length =596' Tc =9.3 min CN =70 Runoff =2.20 cfs 0.128 af
Subcatchment 12S: Area 12 Runoff Area =3.340 ac 0.00% Impervious Runoff Depth = 0.00"
Flow Length =344' Tc =5.7 min CN =20 Runoff =0.00 cfs 0.000 of
Subcatchment 13S: Area 13 Runoff Area = 15.350 ac 0.00% Impervious Runoff Depth = 0.61"
Flow Length = 1,404' Slope= 0.2000 '/' Tc =22.6 min CN =70 Runoff =8.04 cfs 0.775 af
Reach 1AR: R1A
Reach 1BR: R1 B
Reach 2R: R2A
Avg. Flow Depth =0.68' Max Vel =2.87 fps Inflow =6.09 cfs 0.635 af
n =0.031 L= 500.0' S= 0.0100 '/' Capacity =12.26 cfs Outflow =5.94 cfs 0.635 af
Avg. Flow Depth =0.37' Max Vel =6.29 fps Inflow =5.94 cfs 0.635 of
n =0.053 L= 236.0' S= 0.2712 '/' Capacity =37.33 cfs Outflow =5.93 cfs 0.635 af
Avg. Flow Depth =0.41' Max Vel =7.46 fps Inflow =14.04 cfs 1.230 af
n =0.053 L= 352.0' S= 0.2955 '/' Capacity =67.53 cfs Outflow =13.96 cfs 1.230 af