FLOOD01279

• Designation Number: 215
• County: Boulder
• Community: Boulder
• Stream Name: Boulder Creek
• Title: Flood Hazard Area Delineation - Boulder Creek
• Date: 1/1/1983
• Designation Date: 5/1/1983
• Floodplain - Doc Type: Floodplain Report/Masterplan

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FLOODING SOURCE FLOODPLAIN DATA FLOOD WAY DATA
CROSS STATION 1 KlO yr. DISCHARGE THALWEG IOOy., FLOODPLAIN FLOODWAY WIDTH2 FLOODWAY
IDENTIFICATION IOOy. FLOOD ELEV, (MSL)
SECTION (CFS) ELEV (MSL) WIDTH (FT) LEFT (FTl RIGHT (fT) TOTAL (FT) ELEV. (MSL)
25 (36+60) ( 4200) (5270.3) (5272.0) (700)
30th Street 26 1121+30 (38+70) 7300 ( 4200) 5260.1 (5271.8) 5271.2 (5273.2) 760 (910)
27 1126+50 ( 40+90) 7300 (4200) 5263.7 (5273,4) 5274.0 (5274.8) 1004 830
28 1130+50 (45+05) 7300 (4200) 5265.3 (5277.0) 5277 . 4 (5279.3) 5024 (625)
29 1134+15 (48+40) 7300 (4200) 5269.0 (5280.1) 5279.0 (5281. 9) 210 (800)
30 1135+15 730U 5274.2 (5281. 9) 5280.4 2504
31 ( 49+60) (4200) (5281.9) (5284.3) (890)
28th Street 32 1136+65 (50+95) 8000 (3500) 5274.4 (5282.4) 5284.9 (5285.4) 760 (1230)
33 1141+00 (54+75) 8000 (3500) 5278.1 (5286.2) 5286.9 (5288.7) 1090 (1370) FLOODWA'I DATA WIL BE PUBL SHED AT
Hilton Harvest House 33.1 1141+70 (57+65) 8250 (3500) 5278.6 (5288.2) 5287.6 (5290.6) 1060 (1280) A LATER DATE. CON T'ACT : URBA ~
Footbridge
34 1146+90 (60+45) 8250 (3500) 5281. 9 (5293.7) 5291.9 (5294.6) 1005 (1190) DRAINAGE a FLOOD ~ONTROL t STRICT
35 1149+55 8250 5284.4 (5295.7) 5293.8 490 I OR CITY OF BOULDE ~ FOR DE ILS.
37 1150+10 11,750 5285.0 5299.1 8604
38 1154+70 11,900 5289.0 5300.7 777 I
Folsom Field Bridge 39 1157+90 11,900 5291. 3 5305.1 I 12004 I
1240: I
Stadium Footbridge 40 1159+95 11,900 5292.5 5306.4 I I
41 1165+50 11 , 900 5299.3 5310.1 I 5504
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19th St.Footbridge 42 1169+95 11 ,900 5301.5 5313.3 I 990
43 1173+55 11,950 5305.0 5316.9 I 9304
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17th Street 45 1177+00 11 , 950 5310.6 5325.0 I 1860
High School Foot- 47 1184+80 12,000 5315.0 5330.5 I 1570
bridge 48 1189+10 12,000 5319.9 5333.6 1 1320
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Arapahoe Ave. 50 1194+50 12,000 5325.5 5340.6 r 1100
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51.2 1197+70 12,000 5330.0 5342.6 , 820
52 1198+10 12,000 5334.1 5343.5 i 890
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1. Distance in feet above mouth.
2. From center of channel looking downstream.
3. ( ) values related to Arapahoe Avenue overflow.
4. Shallow flooding area not included.

MULLER ENGINEERING COMPANY, INC.
CCJIISULTING ENGINEERS
1410 VANCE ST.. sum 203
u.KEWOOD, COlORADO 80215
[phone]

FLOODPLAI N

AND FLOODWAY REFERENCE DATA

URBAN DRAINAGE a FlOOD CONTROL DISTRICT

TABLE
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CONT,

BOULDER CREEK

FLOOD HAZARD AREA DELINEATION
C I TV OF SOU LDER

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