FLOOD05038

• County: San Miguel
• Community: Norwood
• Basin: Gunnison
• Title: FloodPlain Information Report Town of Norwood
• Date: 9/1/2000
• Prepared For: Norwood
• Prepared By: CWCB
• Floodplain - Doc Type: Floodplain Report/Masterplan

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CWCS HvdroloQv Worksheet

Pagel

Title of Study:
County:
Calculations By:

FHBM - Town of Norwood
Dolores
jag

Date:

November 6. 2000

Documentation
This workbook estimates 100-year discharges for approximate floodplains in Colorado using the following
source:
Browning, T.W. 1999. Guidelines for Determining 100-year Flood Flows for Approximate
Floodplains in Colorado, Version 4.0. Colorado Water Conservation Board. January.

River Basin

I DLR-l: Dolores, Dolores River Subregion
Status of Regression Equations for this sub-region:

I~

Draft

Regression Equation Data
Q=aAb

Where:
Q = Discharge (cis)
A = Drainage Area (square miles)
a = coefficient =
b = coefficient =

213.8
0.601

limited by:
Minimum Drainage Area =
Maximum Drainage Area =

2 square miles
1080 square miles

Discharge Calculations

Drainage Drainage 100-year
ArealD Drainage Area Description Area (mi") Discharge (cis)
A West SFHA - West SFHA at dls Town limits 0.79 Outside Bounds
B Cedar Street SFHA - Cedar Street SFHA at dls Town limits 2.72 390
C Ed Joe Draw - Ed Joe Draw at d/s Town Lim~s 22.90 1,404

11/6100
CWCB_Hydrology.xls