FLOOD01718

• County: Montrose
• Community: Montrose
• Stream Name: Uncompahgre River
• Title: City of Montrose Flood Control and Drainage Plan
• Date: 5/1/1981
• Prepared For: Montrose
• Prepared By: Gingery Associates, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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System
(.1 (~1a 1 n St.)

l1miting Capacity
3c.f.s.

limitinq Structure
Pipe

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FLOOD HISTORY

TABLE 3

Little definitive data is available on past flooding in the Montros e
area. There aft' no stream g3ging stations or crest gages on any of the
study streams. Knowledge of past f100ding in Montrose is prirr.arily
based on precipitation records, accounts published in previous floodplain
reports,oldnewspaperarticles, local histories, and the personal memories
of a few long-time residents.
Rainfall records have been maintained by the Uncompahgre Valley Water
Users Association at North 6th Street and Park Avenue for over 57y ears
and by the National Weather Service at the Montrose airport for over 27
years. TIIest' precipitation records were studied to determine the dates
of the major recorded storms in the Montrose area. These dates, shown in
Table 4, were then used to search local newspapers for descriptions of
flood events, Hany. Four flood events which occurred in the years 1938,
1963, 1964 Jnd 1967 were found and are described below;

Existinq Storm Sewer Capacities

',I (N, 9th St.) 5 c.f.s. Pipe
r1-2 (N, 5th St.) 5 c.f.s. Pipe
~1.3 (N, ',d St.) to c.f.s. Pipe
',4 (l~a i n St.) 1Sc.f.s. Pipe
',5 (Main St.) ) c.f.s. Pipe
11-6 (5, 2nd St.) 1 c.f.s. Pipe

U,I (N, 9th St.) 17 c.f.s. Pipe
U,2 (M.Jin St.) lOc.f.s. Pipe
U-3 (~la i n St.) 15 + c.f.s. Inlets
U-4 (5. 5th St.) ) c.f.s. Pipe
lJ-$ (Brown Rd.) 1 c.f.s. Pipe
U,' (Brown Rd.) 1 c.f.s. Pipe
U,) (Brown Rd.) 3 c.f.s. Pipe
U,8 (Grand Ave.) 1 c.f.s. Pipe

Flood of September 4, 1938
Heavy rain on two consecutive days in September, 1938 caused flooding
fromDryCreek,aswel1 as Montrose Arroyo. Available inforlTl'Jtion indi-
cates that "aportionoftheCitybecameavastlake",andthatrUTl off
flowed down several streets at one to four foot depths. Road and bridge
damage was sustained, as well as considerable damage to private homes and
property. (Reference 2)

Source:

Hydro-Triad Ltd. F1ocdpl<lin inforrnation ar,d Urban Drainage Rep(lf"l,
(Reference 1)

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