FLOOD00734

• Designation Number: 213
• County: Adams
• Community: Thornton
• Stream Name: Brantner Gulch and Tributaries
• Title: Flood Hazard Area Delineation - Brantner Gulch and Tributaries
• Date: 1/1/1983
• Designation Date: 5/1/1983
• Floodplain - Doc Type: Floodplain Report/Masterplan

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LOCATION FLOOD PLAIN DATA: FLOODWAY DATA: 100- YEAR 35
IOO-YEAR
SECTION I 100 YEAR THALWEG2 WATt:R MEAN WATER DISTANCE" 4 MEAN
TOP TOP DISTANCE
NUMBER STATION DESCRIPTION DISCHARGE ELEVATION SURFACE WIDTH (FT.) VELOCITY SURFACE WIDTH (FT.) LEFT (FT,) RIGHT (FT.) VELOCITY
-ICFS) ELEVATION I FT.lSEC,l ELEVATION (FT./SEC,)
TRIBUTARY III - CONT'O
8200 447+25 1300 5157.6 5165.5 295 1.1 5165.9 205 110 95 1.5
8190 446+85 Holly Street 1300 5156.0 5164.8 197 6.0 5164.9 155 55 100 7.0
8180 446+50 1300 5154.8 5158.2 200 5.1 5158.2 140 40 100 7.0
8170 443+40 1300 5148.8 5153.2 75 6.7 5153.4 60 35 25 7.0
8160 440+20 1300 5144.2 5149.1 67 6.8 5149.4 50 20 30 7.3
8150 437+50 1300 5139.7 5144.3 56 9.0 5144.6 40 20 20 9.7
8140 435+00 1300 5137.1 5144.1 110 2.7 5144.6 90 55 35 2.5
8130 432+70 1300 5136.5 5144.1 300 0.7 5144.6 210 100 110 1.3
8120 432+00 E. 128th Avenue 1300 5135.0 5143.6 340 4.9 5143.8 110 40 70 6.4
8110 430+90 1300 5134.8 5139.0 230 1.7 5139.3 80 30 50 3.6
8100 427+05 1500 5134.8 5138.8 255 1.8 5138.9 180 115 65 2.0
8088 424+45 Stock Pond Dam 1500 5134.0 5137.7 295 5.8 5137.7 300 150 150 5.9
8080 421+90 1500 5120.8 5124.8 100 6.1 5125.2 100 40 60 6.8
8070 419+ 30 1500 5118.0 5121.4 91 7.5 5121.6 60 40 20 8.1
8060 416+80 1500 5114.7 5118.1 87 6.9 5118.5 55 15 40 7.2
8050 413+55 1500 5109.3 5112.8 71 8.2 5112.9 50 15 35 9.8
8040 410+50 1500 5104.3 5107.8 110 5.0 5108.2 75 20 55 5.7
8030 408+40 1500 5102.1 5105.0 88 7.9 5105.3 60 35 25 8.6
8020 406+00 1500 5099.6 5103.9 147 3.2 5103.7 90 15 75 4.7
8010 403+30 1500 5098.3 5103.7 190 2.3 5102.9 90 30 60 4.0
400+00 Confluence With Brantner Gulch
SUB-TRIBUTARY 111-0
522+30 Stock Pond Dam
8260 521 +40 200 5206.6 5207.9 90 5.0 5207.9 48 27 21 5.2
8250 517+60 200 5197.0 5205.0 605 0.1 5205.5 380 220 160 0.1
8244 515+30 Stock Pond Dam 200 5204.0 5204.7 630 3.4 5205.2 440 220 220 4.0
8240 513+60 200 5186.9 5188.7 65 5.1 5188.7 65 35 30 5.2
8230 508+70 200 5177 .4 5179.8 55 3.8 5179.7 45 28 17 3.8
TABLE 3 FLOOD HAZARD AREA DELINEATION
C.O"SULll..a ~ SELLARDS & GRIGG, INC. TABULAR FLOOD PLAIN AND FLOODWAY DATA URBAN DRAINAGE AND FLOOD CONTROL DISTRICT
t,.,g'''l:ltIlS
1/4'''' UTH "V("ll,ll . COTTO.....OOO 'tAl" I
lAlI:hwOOo. COlO....OO '02", 131-Ull BRANTNER GULCH CITY OF THORNTON
- ADAMS COUNTY