CONNECTICUT RIVER BASIN
01135150 POPE BROOK (SITE W-3) NEAR NORTH DANVILLE, VT
LOCATION.--Lat 44°28'35", long 72°07'33", Caledonia County, Hydrologic Unit 01080102, on left bank, 0.3 mi north of
Pope Cemetery, 1.1 mi upstream of North Brook, and 1.7 mi northwest of North Danville.
DRAINAGE AREA.--3.25 mi².
PERIOD OF RECORD.--Discharge records: December 1990 to current year.
GAGE.--Water-stage recorder. Datum of gage is 1,141.20 ft above sea level.
REMARKS.--Records good except those for estimated discharges, which are fair.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 1960-1990, 380 ft³/s, June 30, 1973, gage height, 3.4 ft (data
provided by USACOE-CRREL).
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 35 ft³/s and maximum (*):
Discharge Gage height Discharge Gage height
Date Time (ft³/s) (ft) Date Time (ft³/s) (ft)
Oct. 21 1700 75 1.93 Apr. 28 1040 39 1.53
Nov. 9 1355 68 1.87 May 1 2100 49 1.66
Dec. 2 0715 116 2.26 May 6 2110 67 1.86
Dec. 24 2320 37 1.50 May 16 2355 42 1.57
Apr. 7 1710 66 1.85 July 15 unknown * 249 *c 2.96
Apr. 19 1650 48 1.65 Aug. 13 1320 107 2.20
Apr. 20 1750 39 1.53 Aug. 21 2305 119 2.28
Apr. 23 1720 38 1.51 Aug. 27 2150 93 2.09
Minimum discharge, 1.2 ft³/s, August 10.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1.7 3.7 12 e4.3 3.0 4.7 7.9 22 8.5 1.6 1.7 6.9
2 1.5 3.6 49 e4.3 2.9 7.5 7.1 22 6.2 1.6 1.7 5.2
3 2.1 3.4 13 e4.6 2.9 6.8 7.9 16 5.1 4.4 2.3 4.8
4 1.7 3.3 10 4.8 2.9 5.4 8.9 16 4.6 3.2 1.8 4.3
5 1.6 3.5 8.9 7.2 3.0 5.0 12 12 4.2 2.3 1.7 3.8
6 1.5 3.4 8.2 8.5 2.9 e4.8 23 23 3.9 1.8 1.6 3.5
7 1.5 3.6 7.7 6.0 2.9 e4.4 37 25 3.7 1.7 1.5 3.5
8 1.5 4.7 e7.6 5.4 2.8 5.4 22 16 3.4 1.6 1.4 3.3
9 4.1 31 e7.4 5.1 e2.8 4.9 15 14 3.2 7.8 1.5 3.0
10 5.8 13 7.0 5.0 e2.7 5.0 16 18 2.9 2.9 1.4 2.9
11 3.4 8.4 6.7 4.6 2.7 4.6 14 13 2.7 2.0 2.9 2.9
12 2.3 7.3 6.6 4.5 2.7 4.6 12 12 3.0 1.7 2.3 6.0
13 2.2 6.5 6.5 4.3 2.6 e4.1 14 11 3.6 1.7 25 4.4
14 1.9 6.2 6.5 4.3 e2.6 e4.2 13 9.6 2.8 2.4 6.7 3.8
15 1.8 e4.8 6.5 4.2 2.6 e4.3 14 10 2.5 e64 2.9 3.1
16 1.7 5.4 6.4 4.3 2.5 4.1 18 13 2.3 9.6 4.1 2.9
17 1.7 5.6 7.8 e3.9 1.9 e3.8 24 18 3.7 6.7 6.2 2.7
18 1.6 5.6 9.2 e3.7 2.5 e3.5 27 13 7.6 e5.4 2.8 3.0
19 1.6 5.8 8.3 e3.6 4.4 e3.6 32 11 8.5 5.0 2.2 2.6
20 1.8 5.5 6.9 e3.5 6.0 e3.6 29 9.9 3.6 4.1 2.0 3.6
21 42 5.0 6.1 e3.4 4.0 e3.7 29 9.0 3.9 3.4 22 3.4
22 12 4.7 6.4 3.4 10 e3.6 28 11 7.3 3.0 21 2.7
23 7.6 4.4 5.8 4.0 e7.2 e3.5 29 8.8 3.6 2.8 7.7 3.5
24 6.0 4.1 12 e3.5 4.9 e3.5 24 7.9 2.8 2.6 5.1 3.3
25 4.7 4.1 14 e3.5 4.5 e3.4 23 7.6 2.8 2.4 4.7 2.7
26 4.0 4.4 e7.4 e3.4 4.4 6.1 24 7.1 2.5 2.2 4.6 2.6
27 3.7 3.9 e6.8 e3.3 5.5 4.7 21 6.5 2.5 2.1 14 2.5
28 3.8 e4.0 6.4 e3.2 5.8 5.5 29 6.1 2.1 2.8 15 2.3
29 3.4 4.1 7.4 3.1 --- 9.8 23 5.7 1.9 2.6 6.7 7.2
30 4.6 3.7 6.7 3.1 --- 11 19 5.7 1.7 2.0 6.2 5.1
31 4.7 --- e4.6 3.0 --- 10 --- 6.6 --- 1.8 5.3 ---
TOTAL 139.5 176.7 285.8 133.0 105.6 159.1 602.8 386.5 117.1 159.2 186.0 111.5
MEAN 4.50 5.89 9.22 4.29 3.77 5.13 20.1 12.5 3.90 5.14 6.00 3.72
MAX 42 31 49 8.5 10 11 37 25 8.5 64 25 7.2
MIN 1.5 3.3 4.6 3.0 1.9 3.4 7.1 5.7 1.7 1.6 1.4 2.3
CFSM 1.38 1.81 2.84 1.32 1.16 1.58 6.18 3.84 1.20 1.58 1.85 1.14
IN. 1.60 2.02 3.27 1.52 1.21 1.82 6.90 4.42 1.34 1.82 2.13 1.28
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 1997, BY WATER YEAR (WY)
MEAN 4.11 5.67 4.99 5.05 3.68 5.57 19.0 9.15 3.75 2.97 3.09 2.49
MAX 6.54 11.4 9.22 9.04 8.16 7.41 25.4 15.6 5.25 5.14 6.00 3.72
(WY) 1996 1996 1997 1996 1996 1995 1994 1996 1996 1997 1997 1997
MIN 2.20 2.79 3.43 2.50 1.98 2.66 6.87 4.69 1.84 1.40 1.73 1.61
(WY) 1995 1995 1993 1994 1993 1994 1995 1995 1995 1991 1993 1995
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1991 - 1997
ANNUAL TOTAL 3007.7 2562.8
ANNUAL MEAN 8.22 7.02 5.89
HIGHEST ANNUAL MEAN 8.44 1996
LOWEST ANNUAL MEAN 3.93 1995
HIGHEST DAILY MEAN 79 Apr 21 e 64 Jul 15 85 Apr 17 1993
LOWEST DAILY MEAN 1.1 Sep 23 a 1.4 Aug 8 .82 Aug 3 1991
ANNUAL SEVEN-DAY MINIMUM 1.2 Sep 18 1.6 Aug 4 .91 Jul 28 1991
INSTANTANEOUS PEAK FLOW b 249 Jul 15 b 249 Jul 15 1997
INSTANTANEOUS PEAK STAGE c 2.96 Jul 15 c 2.96 Jul 15 1997
INSTANTANEOUS LOW FLOW 1.2 Aug 10 .74 Aug 2 1991
ANNUAL RUNOFF (CFSM) 2.53 2.16 1.81
ANNUAL RUNOFF (INCHES) 34.43 29.33 24.62
10 PERCENT EXCEEDS 15 15 12
50 PERCENT EXCEEDS 5.6 4.4 3.5
90 PERCENT EXCEEDS 1.7 2.0 1.5
a Also occurred on August 10.
b From rating curve extended above 84 ft³/s on basis of theoretical weir formula.
c From floodmarks.
e Estimated.
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