2014-04-22_REPORT - M1990057

• Permit No: M1990057
• IBM Index Class Name: REPORT
• Doc Date: 4/22/2014
• Doc Name: Drainage report
• From: Union Milling Company, LLC
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

Flatirons, Inc. — Surveying & Engineering
TABLE OF CONTENTS
Certification.............................. ...............................
Vicinity Map ...........................
1
.......... 2
1.0 Location and Description ............................................................... ............................... 3
Background......................................................................................... ............................... 3
ProjectLocation .................................................................................. ............................... 3
PropertyDescription ........................................................................... ............................... 4
ProjectDescription ............................................................................. ............................... 4
2.0 Drainage Design Criteria ............................................................... ............................... 5
Regulations......................................................................................... ...............................
5
Development Criteria Reference and Restraints ................................. ...............................
5
HydrologicalCriteria .......................................................................... ...............................
5
HydraulicCriteria ............................................................................... ............................... 6
3.0 Drainage Basins and Sub - Basins ................................................... ............................... 7
MajorBasin Description ..................................................................... ............................... 7
BasinDescriptions .............................................................................. ............................... 7
Sub -Basin Description ........................................................................ ............................... 8
4.0 Drainage Facility Design ................................................................ ............................... 9
GeneralConcept ................................................................................. ............................... 9
SedimentAreas ................................................................................. ...............................
10
TSFEmergency Spillway ................................................................. ...............................
11
OpenChannels .................................................................................. ...............................
11
TSFWater Levels ............................................................................. ...............................
13
References.............................................................................................. .............................14
AppendixA ........................................................................................... ............................... A
HydrologyComputations ................................................................... ............................... A
AppendixB ............................................................................................. ..............................B
HydraulicComputations ...................................................................... ..............................B
Map Pocket in Back of Report
Drainage Map (DR -1)
Drainage Details (DR -2)
Union Mill March 5, 2014