FLOOD07104

• County: Boulder
• Community: Lyons
• Stream Name: North, South and Main St. Vrain Creeks
• Basin: South Platte
• Title: Flood Insurace Rate Map - Only Panel Printed
• Date: 2/1/1980
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

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ZONE C

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NORTHERN

ZONE C

ZONE C

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ZONE C

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COliPoRATE UfMTS

ELEVATION REFERENCE MARKS

REFERENCE
MARK
RM'

ELEVATION
(fT. NGVD)
5367.640

M,uk Ii louted 72 rflit nortll ~Iong the west curb of Sill Avenue
from its intersection with Milo Street c>;knded, 0.7 feel from the
bl,k of the west curb, loel in concrete horllonu,tly .nd h:lvel witll
the lop of the curb. Elliblid'lcd by Hall/i,d, Needles, Tlmmen ..nd
Bergendoff.

Mark is loclted 0.65 ml'e loOuthwnl .Ilonl SUle Highway 1 from the
post office it lyons 'oIhere the highWiV (:fOsses I unill, 156 feet
southWell of the centerline of tile hlgllwlY, 92 f<<t no,thelst of tile
norlhu~ b.ok of SI. "".10 Creek, 111 feel wUlhweu 01 the soulh-
Well rail of the Colo..do" Southern R,II'Old, 27 feu south of the
wnt corner of trnlle 47.66, set in lhe top of the Wl,lthe~st end of
the wingwilU of ~ heildgite of ,In irrlptlon ciln.l. Enibli~heJ by
Howird, Needles, Timmen .nd 8ergendofl.

Mark is locited 1.2 miles SOl,lthwe~t ilong Stite HighwiY 7 from lhe
pon office .1 Lyons, 63 y~rd~ south of the north end 01 iI lir2e
rock cliff, J4 feet wen of the 1001 of the cUff, 19 feet wen of the
centerline 01 the highwiY, set In the toP of the wen ~oncrele reo
Uining wall of an Irrl"lion dilth. htablished by Howard, Needln,
Timmen and Bcrgendolf.

DESCRIPTION OF LOCATION

RM2-

5305.186

RM3"

5390.386

.OUTSIDE STUDY LIMITS

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KEY TO MAP

SOO.Yur Flood Boundiry
100.Yeir Flood Boundiry

lone Desitf\ulons.Wlth
Diteof Idcmtifiutlon
e.&.,12/2n4

100-Yur Flood Boundilf)
SOO.Yur Flood Bounpilry

B.u Flood Elevation Line
WllhElevulonlnFeuu

513

B.u Flood Elevation In Feet
Where Uniform Within loneu

lEI.. 9871

Elev.ulon Reference M.,k

RM7X
.Ml.5

RlverMUe

UReferenced to the Niltlon.ll Geodetic Vertlu.l Diltum of 1929

.EXPLANATION OF ZONE DESIGNATIONS

EXPlANA TION

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Areas of lOO.yur flood; b.lse flood elev~lions ind
flood hUird f.clo~ nOI delermined.
Arus of 100.yur sh.lllow flooding where depths
ire between one lnind three (3) feel;~ver.ge deplhs
of inund.ltlon ~re shown, but no flood hUilrd finon
iredelermined.
Arus of IOo.yur shallow flOOding where deplhs
are brlwttn one (1) ~nd lhree (3) feet; bilSl: flood
eleVilions ~re shown, bul no flood hillUd fUlOn
are determined.
Areu of l00-yur flood; bn.e flood elentlons and
flood hUird helors delermlned.
Mus ot 10o.yur flood 10 be prolecled by llood
prolectlon syslem under conslructlon; bise fT"ood
e"valion~ and flood hUird filclors nOI delermined.
Mus belween UmiB of Ihe 10o.yeir flood ilnd SOO'
vur flood; or certiln ~reolS subleel 10 I oo.ynr flood-
ins wilh iVefilge depths len Ihan one (1) foot or where
Ihe ~ontributins dr~iniSe iru Is le~s Ihan one square
mile; or .lreolS prOlecled by leven flom lhe b.ne 110od.
(Medium shadlngl -
Areuof minim" floodin&. (No shadioS)
Arus of undelermined, bUI possible, flood huards.
Arus 01 lOa-yur coutal flood with velocllY (Wive
iction); b~ flood elevlllloos iod 1I0od huud flClO~
nOldelermined.
Mus of lOO.yur COisLlI flood wilh velocllY (wave
i"lon); base flood eleut;ons and 1l00d hUird faClors
determined.

V1.V30

NOTES TO USER

eeru,n ..<u l'lo\ln the ~peclal "OOd hua"" .rei~ (IOnes A lInd VI
nliIY be prolected by f1oodconlrol Slruelures.

This m.p k for flood Insurance purposes only; il does flOI neces.
suily show ill arus subjecl 10 f100dinS I" Ihe communllY or
.11 plinimelri~ fulures oUlside speci~1 flood hUlIrd ~reis.

INITlAlIDlNTIFICATlON;
MAY 29. HI14

FLOOD HAZARD BOUNDARY MAP RlVISIONS;
API'IIL2.1976

flOOD INSURANCE RATE MAP EFFECTIVE:
AUGUST 1. 1980

FLOOD INSURANCE RATE MAP REVISIONS;

Refer 10 rile FLOOD INSURANCE RATE MAP EffECTIVE dile
shown 00 this mip 10 determine when iCluri.1 riles ipply 10
Slfuelures in the lOne~ where eh~vilions or deplhs hive been eslab.
Iished.

To determine if flood Insurllnce is olviil~ble in this communilY,
conUeI YOllr insurince igenl, or call1he Nit;onal Flood fnsur.nce
PlOgram, at (gOO) 638.6620, or [phone].

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APPROXIMATE SCALE
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1--1' J---.-I 1---1

!iOOFEET
,

_ NATIONAL FlOOO INSURANCE PROGRAM

FIRM
FLOOD INSURANCE RATE MAP

TOWN OF
LYONS, COLORADO
BOULDER COUNTY

ONLY PANEl PRINTED

COMMUNITY .PANEl NUMBER
080029 0001 B

EFFECTIVE DATE:
AUGUST I, 1980

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