FLOOD00154

• Designation Number: 127
• County: Weld
• Community: Unincorporated Weld County
• Stream Name: Big Thompson River
• Title: FIR - Big Thompson River
• Date: 2/1/1978
• Designation Date: 1/1/1979
• Floodplain - Doc Type: Floodplain Report/Masterplan

Table(i (continued)
Flood Plain Reference Data
Big Thompson River
Weld County, Colorado
'I 10-Year 50-Y8Clr 100-Year 5oo-Year
5tream-
Reference Olstance ." """" """" """" """"
Point 10 Elevation Elevetlon Elevation Elevation Elevation
Identification Number Feet Ft.41.5.l. Ft.41,5.l. Ft.41.5.l. Ft.41.S.l. Ft.41.S.l.
" 63,280 4764.2 4765.5 4766.4 4766.8 4767,7
" 62,460 4761.5 4764.1 4765.0 4765.3 4760.3
82 61,840 4761.4 4763.4 4764.1 4764.5 4765.5
" 60,480 4761.1 4762.5 4763.4 4764.0 4764.9
" 58,710 4760.4 4761.9 4762.7 4763.1 4764.1
65 57,790 4759.4 4760.8 4761.8 4762.2 4763.2
" 56,610 4758.3 4759.3 4760.2 4760.6 4761.7
" 56,310 4758.1 4159.2 4160.0 4760.4 4761.5
N Tllompson & Platte 4758.4 4759.5 4759.9 5761.'
. Ditch 88 56,030 4756.0
" 53,980 4751.3 4754.9 4756.0 4756.6 4757.8
"" 52,990 4750.3 4753.8 4755.1 4755.7 4756.9
91 51,200 4748.4 4752.0 4753.2 4753.7 4754.8
" 50,180 4747.6 4749.6 4750.6 4751.0 4752.0
" 49,000 4743.4 4745.9 4747.0 4747.5 4748.6
" 48,350 4742.4 4744.7 4745.3 4745.8 4748.1
95 47,360 4738.8 4740.9 4743.1 4744.6 4747.8
96 46,950 4737.6 4740.6 4743.1 4744.5 4747.7
" 46,320 4736.1 4740.5 4743.0 4744.5 4747.7
l! Low watAr elevation as determined by aerial photogrammetrlc methods.

Table 6 (continued)
FlOOd Plain Reference Data
Big Tt-ompsonRiver
Weld County, ColoradO
5trea.,!l 10-Year 50-Year IOO-Year 500-Year
Reference Distance Bod """" Flood Flood FI"""
Point 10 Elevation Elevation E'evation Elevation Elev"tlon
Identification Number Feet Ft.41.5.l. Ft.41.5.l. Ft.41.5.l. Ft.41.5.l. Ft.41.5.l.
AbandonedRR 88 45,900 4735.8 U/54740.4 U/54743.0 U/54744.5 U/54747.7
0/54740.4 0/54743.0 0/54744.5 D/54747.7
" 45,690 4735.8 4740.4 4743.0 4744.5 4747.7
Union Pacific RR 100 45,200 4135.7 U/54740.4 U/54742.9 1J/54744.4 IJ/5 4747.5
0/54740.3 0/54742.7 0/$4744.2 0/54747.3
'" 45,150 4735.6 4740.2 4742.6 4743.8 4746.8
Colorado Hwy. 287 102 45,050 4735.3 1J/54738.7 U/54740.7 U/54741.7 U/S 4743.9
0/54738.4 0/54740.5 0/54741.6 0/5 4743.7
" ,OJ 44,200 4733.3 4736.1 4737.3 4737.9 4739.2
0
"" 42,800 4731.7 4733.2 4734.3 4734.8 4736.0
105 41,890 4730.6 4732.2 4733.1 4733.6 4734.7
"" 41,300 4729.7 4730.9 4732.0 4732.4 4733.3
ID' 41,050 4728.0 4729.7 4730.5 4730.9 4731.8
Olunty Road 4at 108 40,850 4727.5 U/54729.6 U/54730.3 U/54730.9 U/54731.7
0/5 4729.6 0/54730.3 0/54730.9 0/54731.7
ID' 40,000 4725.6 4728.2 4729.1 4729.6 4730.9
lID 38,600 4724.2 4727.2 4728.3 4728.7 4730.0
little Tr.ompson
River I" 38,200 4722.5 4726.6 4727.8 4728.5 4729.8
'" 37,930 4722.0 4726.1 4727.7 4728.3 4729.6
l! ". water elevation as dMermlned by lerlal pootoqrarrrnetricmethods.