FLOOD09085

• Designation Number: 97
• County: Adams
• Community: Thornton
• Stream Name: Grange Hall Creek
• Basin: South Platte
• Title: Major Drainageway Planning - Grange Hall Creek, Phase B, Thornton, Adams County
• Date: 12/1/1977
• Designation Date: 1/19/1978
• Floodplain - Doc Type: Floodplain Report/Masterplan

I
I
I
I
I
I
I
II
Ii
11
I
I
I
I
I
I
I
I
I

HYDRO-TRIAD. LTD.

(1) (2) (3) (4) (5) (6) (7) (8)
STATIONING DRAIN. STR~ET UTILITY ENGR. & CONSTR. TOTAL OF OPERATIONS
REACH STA. TO STA. JURISDICTION IMPROVE. IMPROVE. RELOCAT. CONTING. SERVICES ** COLUMNS 1-5 RIGHT-OF-WAY MAINTENANCE
- (ANNUAL)
1G 0+00 to 76+50 Adams County (39.5)* 0 0 (5.9)* (5.0)* (50.4)* 0 (12.25)*
2G 76+50 to 143+65 Thornton 37.0 115.0 15.0 25.1 21.1 213.2 0 1.58
3G 143+65 to 175+30 Thornton 0 0 0 0 0 0 0 0
4G 175+30 to 205+40 Northglenn 0 0 0 0 0 0 0 0
5G 205+40 to 219+20 Thornton 0 0 0 0 0 0 0 0
6G 219+20 to 236+65 Northglenn 35.0 28.0 1.0 9.6 8.1 81.7 0 0.23
7G 236+G5 to 278+40 Northglenn 123.0 116,3 9.1 37.3 31.4 317.1 0 26.87
8G 273+40 to 294+65 Northglenn 103.0 33,3 2.0 20.7 17.5 176.5 0 1.75
gG 294+65 to 309+65 Northglenn 27.0 0 0 4.0 3.4 34.4 0 8.95
TOTAl) NORTHGLENN 288.0 177 .6 12.1 71.6 60.4 609.7 0 37.8
THORNTON 37.0 111,5 15.0 24.5 21.1 213.2 0 1.58
IS 0+00 to 16+80 Northglenn 31.5 23,3 7.7 9.4 7.9 79.8 0 1.39
2S 16+80 to 77+65 Thornton 80.2 39,0 7.7 19.0 16.0 161. g 11.8 4.13
3S 77+65 to 110+70 Thornton 0 0 0 0 0 0 0 0
4S 110+70 to 130+90 Northglenn 18.2 109.3 0 19.1 16.1 162.7 5.0 0.75
5S 130+90 to 140+00 Northglenn 19.7 12.8 8.0 6.1 5.1 51.7 0 2.65
TOTALS NORTHGLENN 69.4 145.4 15.7 34.6 29.1 294.2 5.0 4.79
THORNTON 80.2 39.0 7.7 19.0 16.0 161. 9 11.8 4.13
IN 0+00 to 26+25 Northglenn 0 0 0 0 0 0 0 0
2N 26+25 to 47+00 Northglenn 63.1 45.0 13.0 18.2 15.3 154.6 11.9 3.07
1NE 0+00 to 47+00 Thornton 115.6 19.5 0 20.3 17.1 172.5 10.0 5.78
2NE 47+00 to 51+75 Northglenn 49.0 15.7 7.0 10.8 9.1 91.6 2.5 1.38
lSE 0+00 to 22+20 Thornton 65.2 9.4 3.7 11.7 9.9 99.9 5.0 1.06
2SE 22+20 to 41+00 Adams County 6.7 0 0 1.0 0.8 8.5 0 0.04
JURISDICTION TOTALS ADAMS COUNTY 6.7 0 0 1.0 0.8 8.5 0 0.04
NORTHGLENN 469.5 383.7 47.8 135.2 113.9 1150.1 19.4 47.04
THORNTON 298.0 182.9 26.4 76.1 64.1 647.5 26.8 12.55
GRAND TOTAL 774.2 566.6 74.2 212.3 178.8 1806.1 46.2 59.63
* Costs are responsibility of private owners - no public costs ** 11% of columns 1 through 4 HYDRO-TRIAD, LTD. 9/77

GRANGE HALL CREEK MAJOR DRAINAGEWAY PLANNING STUDY
SUMMARY OF IMPROVEMENT COSTS
(THOUSANDS OF DOLLARS)

TABLE m: - 3