2019-05-24_PERMIT FILE - M2019028 ‎(13)‎

• Permit No: M2019028
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/24/2019
• Doc Name: Application
• From: J-2 Contracting Co.
• To: DRMS
• Email Name: ECS
• Email Name: MAC
• Media Type: D
• Archive: No

J&T Consulting, Inc. J-2 Contracting Company
DPG Gravel Pit
In 5/13/2019
100-year Floodplain Elevation Summary
©2019 J&T Consuitinc Inc. 08114 DPG Pit Floodplain Elevation Summary
Cache la Poudre River 100 Year Flood Elevations
AECOM CHAMP Dup Effective Dup Effective Mining Mining 100-yr
HEC-RAS 100-yr Flood 100-yr Flood 100-yr Flood to 100-yr Flood Flood to AECOM
River Station Elevation Elevation AECOM Change Elevation Change
(feet)* (feet)* (feet)* (feet)* (feet)* (feet)*
88+03.94 4609.94 4609.94 0.00 4609.95 0.01
82+10.83 4609.51 4609.51 0.00 4609.53 0.02
76+86.40 4608.99 4608.99 0.00 4609.02 0.03
74+77.09 4608.67 4608.67 0.00 4608.71 0.04
67+57.88 4607.38 4607.38 0.00 4607.53 0.15
50+84.66 4606.37 4606.37 0.00 4606.42 0.05
32+86.67 1 4605.64 4605.64 0.00 4605.64 0.00
22+55.67 1 4604.821 L 4604.82 0.00 4604.82 0.00
12+34.80 1 4604.38 4604.38 0.00 4604.38 0.00
*All elevations on NAVD88 Datum
South Platte River 100 Year Flood Elevations
AECOM CHAMP Dup Effective Dup Effective Mining Mining 100-yr
HEC-RAS 100-yr Flood 100-yr Flood 100-yr Flood to 100-yr Flood Flood to AECOM
River Station Elevation Elevation AECOM Change Elevation Change
(feet)* (feet)* (feet)* (feet)* (feet)* (feet)*
14041+82 4613.46 4613.46 0.00 4613.52 0.06
14034+73 4612.28 4612.28 0.00 4612.40 0.12
14027+08 4610.80 4610.80 0.00 4610.97 0.17
14020+05 4609.92 4609.92 0.00 4610.07 0.15
14012+05 4608.65 4608.65 0.00 4608.69 0.04
14003+74 4607.14 4607.14 0.00 4607.14 0.00
13992+18 4605.61 4605.61 0.00 4605.61 0.00
13981+91 4604.85 4604.85 0.00 4604.85 0.00
13973+98 4604.35 4604.35 0.00 4604.35 0.00
13965+52 4603.55 4603.55 0.00 4603.55 0.00
`All elevations on NAVD88 Datum