FLOOD00261

• County: Montezuma
• Community: Dolores
• Stream Name: Dolores River
• Title: Flood Mitigation Plan for a Flood Control Project on the Dolores River
• Date: 1/1/1986
• Prepared For: Dolores
• Prepared By: CWCB
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

lOO-YE~ar elevation with no freeboa~d, :0 minimize cha~ges to
exist:.ng driveways and landscaping and to reduce costs.

Alternative A

Construct a new levee to meet federal cr~teria

with the westerly 300 feet having an iJVerage
height of 9 feet an~ the easterly 700 feet having
an average height of 4 feet (See cros~;-section

A-A) .

Jl.lternative B

.~
1~

Minimal raising of existing driveway and connecting
to high ground. The existing driveway, even thougt
is reasonably far f~om the river, would serve

'~
10

minimally as a levee. 500 ~eet o~ new levee connecting
the driveway to high ground will be constr~cte~. ~he
levee system will provide 100-year protection; however,
it will not be in comp~iance with federal levee
criteria. The purchase of flood insurance for
structures will remain a federal reguirment. (See
cross-section A-A.)

4.3. pro4ect Costs
.

~he costs of the primary a:te~na~ives (~hose fo~ t~e

n()r~h side of the river) were eS~lma~e6. In
CClst of each of the ~wo alterna~ives for the

adc::":io:-:., -:he

SOU':'!) s:'Q~

,-,~
~-

tt:e river was estimated.

Furthe~ aiscussion o~ the

feasibility o~ a structu~al prc~ect and oth~r Op~:.8~S fo~

sc,~th side ~~ ?rov~6e~ ~~ Se=ti~n 5, ?ec~~me~sa~:O~5.

Costs fo~ the various alternatives were deveJ,ope6 by
using unit costs as listed i~ Table 2. Fi:l and C:_2}"
materials and riprap a:::-e assume:5 .~() b~ ava:lable i,1'1 :.:-:e
Dolores area. The unit cos~s We~e basea on the ex?erience
0= the u.s. Army Corps of En';:~~eers throughou': :cJo:::-260 B:1C
on the recent experience of the URE. Bureau o~ R€c:arnation

- ~ 4-.