Home Basin Index

Surry Mountain Dam, Ashuelot River
Surry Mountain Dam, Ashuelot River
 Drainage Area: 100 sq. miles 
 Channel Capacity: 1,250 cfs 
 Storage at Spillway Crest: 5.94 in / 31,694 ac-ft  
 Normal Pool: 15 Feet (Summer), 18 Feet (Winter) 
 Gate Settings for November 14, 2025 07:00 am Gate 1 Gate 2 E. Gate Loc. E. Gate Pos. Gate 5 Gate 6 Gate 7 Gate 8
  0.4 0.3 1 56        
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
Nov-17 07:30 am 18.37 3.4 984 5.35     5.10 32.1
Nov-17 06:30 am 18.37 3.4 984 5.35 72 98 5.10 31.9
Nov-17 05:30 am 18.33 3.3 971 5.35 72 72 5.10 32.3
Nov-17 04:30 am 18.33 3.3 971 5.35 72 72 5.10 32.3
Nov-17 03:30 am 18.33 3.3 971 5.35 72 98 5.10 32.6
Nov-17 02:30 am 18.33 3.3 971 5.35 72 98 5.10 32.8
Nov-17 01:30 am 18.33 3.3 971 5.35 72 105 5.10 33.0
Nov-17 12:30 am 18.33 3.3 971 5.35 72 111 5.10 34.0
Nov-16 11:30 pm 18.33 3.3 971 5.35 72 111 5.10 34.3
Nov-16 10:30 pm 18.33 3.3 971 5.35 72 111 5.10 35.2
Nov-16 09:30 pm 18.29 3.3 958 5.35 72 85 5.10 36.4
Nov-16 08:30 pm 18.29 3.3 958 5.35 72 92 5.10 37.6
Nov-16 07:30 pm 18.28 3.3 954 5.35 72 98 5.10 39.0
Nov-16 06:30 pm 18.27 3.3 951 5.35 72 92 5.10 39.2
Nov-16 05:30 pm 18.27 3.3 951 5.35 72 92 5.10 40.3
Nov-16 04:30 pm 18.27 3.3 951 5.35 72 92 5.10 41.2
Nov-16 03:30 pm 18.27 3.3 951 5.35 72 92 5.10 43.0
Nov-16 02:30 pm 18.26 3.3 948 5.35 72 124 5.10 43.1
Nov-16 01:30 pm 18.24 3.2 942 5.35 72 111 5.10 44.6
Nov-16 12:30 pm 18.24 3.2 942 5.35 72 111 5.09 42.5
Nov-16 11:30 am 18.24 3.2 942 5.35 72 118 5.09 44.8
Nov-16 10:30 am 18.24 3.2 942 5.35 72 118 5.09 45.3
Nov-16 09:30 am 18.24 3.2 942 5.35 72 118 5.09 45.3
Nov-16 08:30 am 18.18 3.2 922 5.35 72 79 5.09 40.6
Nov-16 07:30 am 18.18 3.2 922 5.35 72 79 5.09 39.5
Maximum 24 Hour Drawdown Rate (5 feet/day): 496 cfs + Inflow (98 cfs) = 594 cfs
Report Generated November 17, 2025 07:48 am