FLOOD01547

• Designation Number: 201
• County: Boulder
• Community: Lyons
• Title: Flood Insurance Study - Lyons, Boulder County, Colorado
• Date: 2/1/1980
• Designation Date: 8/1/1982
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLE OF CONTENTS (Cont'd)

Page

FIGURES

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Figure 1 - Vicinity Map............................................. 3
Figure 2 - Historic Flooding........................................ 6
Figure 3 - Historic Flooding........................................ 6
Figure 4 - Historic Flooding........................................ 7
Figure 5 - Historic Flooding........................................ 7
Figure 6 - Floodway Schematic....................................... 12

TABLES

Table 1 - Historic Flood Peak Discharges and Stages at Lyons Gage,
St. Vrain Creek.... ....................................... 9
Table 2 - Sununary of Discharges..................................... 10
Table 3 - Floodway Data............................................. 13
Table 4 - Flood Insurance Zone Data................................. 16

EXHIBITS

Exhibit 1 - Flood Profiles
St. Vrain Creek
North St. Vrain Creek
South St. vrain Creek

Panels
Panels
Panel

01P-02P
03p-06P
07p

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Exhibit 2 - Flood Boundary and Floo~way Map

PUBLISHED SEPARATELY:

Flood Insurance Rate Map

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