FLOOD04241

• County: Broomfield
• Community: Broomfield
• Stream Name: Nissen Res., City Park, Gay Res., West Lake Basins
• Basin: South Platte
• Title: Flood Hazard Area Delineation
• Date: 6/1/1979
• Prepared For: UDFCD
• Prepared By: Wright-McLaughlin Engineers
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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APPENDIX A (Continued)

A-5

(d)

WESTMINSTER FLOODPLAIN ORDINANCE(2)

Conditions Attached .to ~peLial,):.xception ~eD.'!2.~~: Upon con-
sideration of the factorsl isted above and the puqJoses Of' thb
Article, the Zoning Boord of Adjustment; maj detach stich cOn<11tion:,
in addition to those '^bWired by special permit'>, ,is it deeffi5
necessary in furtheri ng the plif'pOSe~ of t.h i s f:e9'J i a t ion. Suc.h
conditions may include speciT'jc.at'ions tur, fI'tl,aut 'llInitation
because of specific enUlile'-dt."iOn, mod1f1~at..lf)n 0f utner wa5te
disposal methods and f<lcii'ltles, 'laJ1d~ccPlng, penod~ of opercitl':,(,
operating controls, sUt'eties, deed restr;ctlo';, and adequate
flood proofing.
(1) F10odproofing. Speclal exceptlons requlring flood
proofing measures sllch as the fOllowi~g sha1 i ~e
designed consistent #i \;h the tlOGG protection elevation
for the particular area as descY'ibed in the Section 3.C13{al
of this Article; and flooJ velocitles, forces and other
factors associated wlth the ~locd-protection elevation,
The Board shall require t.hat the appl icant submit a
plan or document cert,fied by a registered professional
engineer' that the flood proo;ing measures ar'e consistent
with the flood protection elevation for the particular
area.
(a) Anchorage to r'esist flotation and lateral movement.
(b) Installation of watertight door'S, bulkheads and
shutters
(c) Reinfm'cement of walls to resist water pressures.
(d) Use of paints, membranes or mortars to reduce
seepage of ~Iater through \~aI1 s.
(e) Addition of mass or weight to structures to resist
flotation.
(f) installation of pumps to lower ~/ater levels in
structures <-
(g) Constt'uction of wate;' s<.:pp'ly and I'laste treatment
systems to pr'e\let;t the f;ntr'ance of f iood waters,
(h) Pumping facl; Hies fot. subsurface drainage,
systems fOI' bu; ldings to rel ieve external foundation
wa 11 and basement fl oar pl'e~sures,
(i) Construction to resist rupture or collapse, caused
by water pr'essute or' floating aebris.
(j) Cutoff valves em sewer lines 01' the ellmination of
gravl ty f"jow b..E,ement dl'~a i (is.

11-12-1

CHAPTER 12

FLOOD PLAINS

SECTION:

11-12-1:
11-12-2:
11-12-3:
11-12-4:
11-12-5:

Statutory Authorization
Designation of Flood Plains
Use of Designated Flood Plains
Administration
Interpretation

11-12-1: STATUTORY AUTHORIZATION: This Ordinance for flood
. . prevention and control is adopted pu'rsuant to the authority
contained In Chapter 106. Article 7, Colorado Revised Statutes 1963, as amended,
and Section 139-6G-l, Colorado Revised Statutes 1963, as amended,

(A) The City Council finds that there are within the City of Westminstervarious
flood plains constituting natural hazards of state and local interest the
occupation of which is likely to cause the loss of human life and the
destruction of property, and that the imprudent occupation of these flood
plains will pose a con.tinuing and greater future danger to life and property,
unless proper regulatIons are adopted concerning their use and occupation.

(B) It is the purpose of this Ordinance to promote the public health, safety and
general welfare by provisions designed to:

1. Permit only such uses within the designated flood plains as will not
endanger life, health, public safety or property in times of flood,

2. Prohibit the placement of fill, materials: and structures which would
obstruct flood flows or cause potentially damaging debris to be carried
downstream.

3. Minimize expenditure of public funds for costly flood control projects.

4. Minimize rescue and relief efforts, generally undertaken at the expense of
lhe general public,

5. Minimize business and commerce interruptions.

6. Minimize damages to public utilities, streets and bridges.

- 1 <' 3--

Feb,'uary 1, 19/6

(2) Excerpted from City Code of Westminster, Colorado.