FLOOD10171

• Designation Number: 218
• County: Boulder
• Community: Unincorporated Boulder County
• Stream Name: Lower Boulder Creek
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Lower Boulder Creek - Valley View Road to Boulder Weld County Line
• Date: 3/1/1983
• Designation Date: 7/1/1983
• Floodplain - Doc Type: Floodplain Report/Masterplan

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FLOODING SOURCE 10 - YEAR FLOODPLAIN OATA 50 - YEAR FLOODPLAIN OATA 5OQ-YEAR FLOODPLAIN DATA
IDENTIFICATION CROSS STATION DISCHARGE FLOOD REV. (MSL) DISCHARGE F\.OOD REV. (MSL) DISCHARGE FLOOD ELEV. (MSL)
SECTION
32 503+85 2750 5008.1 8500 5010.2 27,400 5012.5
109th Street 34 505+25 2750 5008.5 8500 5011.2 27,400 5013.5
35 511+35 2750 5011. 4 8500 5012.7 27,400 5015.3
36 517+60 2800 5012.8 8600 5014.6 27,600 5017 . 4
D.S.Highway 287 38 519+70 2800 5013.5 8600 5015.4 27,600 5021. 6
39 526+80 2800 5016.8 8600 5018.5 27,600 5022.4
Bullhead Gulch 40 530+70 2800 5018.2 8600 5019.7 27 , 600 5023.1
41 539+55 2800 5021. 3 8600 5022.8 27,600 5025.4
42 547+45 2800 5025.5 8650 5026.6 27,800 5028.6
43 556+20 2800 5029.1 8650 5030.2 27,800 5032.3
44 565+60 2800 5031. 5 8650 5033.0 27,800 5035.3
45 572+20 2850 5034.6 8750 5035.9 28,000 5038.2
46 579+85 2850 5037.4 8750 5038.6 28,000 5040.9
47 585+40 2850 5038.9 8750 5040.3 28,000 5042.7
48 591+80 2950 5040.7 8800 5042.3 28,100 5044.8
49 595+50 2950 5042.3 8800 5044.0 28,100 5046.4
50 599+60 3000 5043.8 8850 5045.4 28,150 5047.8
51 607+00 3000 5046.2 8850 5047.7 28,150 5050.3
52 616+50 3100 5048.3 8950 5049.6 28,300 5052.0
53 623+00 3100 5050.3 8950 5051. 8 28,300 5054.3
North 95th Street 55 624+80 3100 5053.5 8950 5054.7 28,300 5056.7
56 628+00 3100 5053.8 8950 5055.1 28,300 5057.2
57 631+00 3100 5054.5 8950 5055.9 28,300 5058.1
58 633+40 3100 5055.9 8950 5057.1 28,300 5059.3
59 637+60 3100 5057.0 8950 5058.3 28,300 5060.5
60 644+00 3150 5058.8 9100 5060.1 28,400 5062.3
61 649+30 3150 5060.8 9100 5062.3 28,400 5064.8
62 655+60 3200 5063.2 9200 5064.8 28,450 5067.5
Dry Creek 63 661+60 2800 5064.5 8800 5066.3 27,300 5069.1
64 669+60 2800 5066.4 8850 5068.2 27,550 5070.7

1Distance in feet above mouth

Hydrology and Hydraulics comy1eted
by Omaha District Corps of Engineers..

MULLER ENGINEERING COMPANY, INC.
CO'ISUl TING ENGINEERS
1410 VANCE ST" SUITE 203
LAKEWOOD. COLORADO 80215
[phone]

URBAN DRAINAGE AND FLOOD CONTROL DISTRICT
COLORADO WATER CONSERVATION BOARD
BOULDER COUNTY

FLOODPLAIN REFERENCE DATA

TABLE
m

LOWER BOULDER CREEK

CONT.

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