Middletown Flood Categories and Possible Impact Areas
• Major Flood - 15 feet or greater
  • 49-50 feet- Lowest point on Main Street at intersection with Court Street
  • 35-36 feet- Intersection of North Main Street and Johnson Street
  • 34-35 feet- Route 9 at the Cromwell border
  • 34-35 feet- Basement level of the Municipal Building
  • 32-33 feet- Interestion of DeKoven Drive and Green Street
  • 32-33 feet- Interestion of DeKoven Drive and Ferry Street
  • 31-32 feet- Interestion of Newfield Street and LaRosa Lane 29-30 feet- Intersection of Dekoven Drive and Washington Street
  • 26-27 feet- Intersection of North Main Street and High Street
  • 26-27 feet- Intersection of Dekoven Drive and Dingwall Drive
  • 26-27 feet- Intersection of Washington Street and Old Mill Road
  • 25-27 feet- Recycling Center- Johnson Street
  • 26-27 feet- Intersection of Washington Street and Old Mill Road
  • 23-24 feet- first floor of Remington Rand Building (180 Johnson Street)
  • 23-24 feet- Intersection of Dekoven Drive and MLK Drive (Metro Lane)
  • 23-24 feet- Intersection of Stack Street and Grove Street
  • 22-23 feet- Newfield St at Cromwell border
  • 22-23 feet- Intersection of Newfield St and Tuttle Street
  • 22-23 feet- City Yard at Thomas Street
  • 21-27 feet- River Road Power Plant
  • 21-22 feet- Intersection of Stack Street and Rome Avenue
  • 21-23 feet- Sewer Treatment Facility- River Road
  • 21-22 feet- Intersection of Union Street and River Road
  • 19-20 feet- Intersection of North Main Street and Grove Street
  • 19-20 feet- Intersection of Stack Street and Pease Avenue
  • 19-20 feet- Route 9 at Railroad Bridge
  • 19-20 feet- Intersection of Route 9 and Hartford Avenue
  • 19-24 feet- Washington Street between the intersections with Bernie O'Rourke Drive
  • 18-21 feet- Bridge Street
  • 18-19 feet- Intersection of North Main Street and Pease Avenue
  • 18-19 feet- DeKoven Drive Bridge at Sumner Brook and Little League Baseball Fields
  • 17-22 feet- River Road near Silver Street
  • 17-19 feet- River Road near Walnut Street
  • 17-18 feet- Mill Street Bridge at Sumner Brook
  • 16-18 feet- River Road Wellfield
  • 16-17 feet- Wilcox Island is submerged
  • 15-18 feet- Bernie O'Rourke Drive
  • 15-16 feet- Walnut Grove Drive (Veteran's Park) near Newfield Street
  • 15-16 feet- Harbor Drive
• Moderate Flood Stage- 12 feet to 15 feet
  • 14-15 feet- First Floor of Harbor Park Restaurant
  • 14-15 feet- Intersection of River Road and Eastern Drive
  • 12-15 feet- Palmer Field
• Flood Stage- 8 feet to 12 feet
  • 10-11 feet- Gazebo at Harbor
• Action Stage- 6 feet to 8 feet
• Normal- Below 6 feet

On average a predicted crest of over 20 feet will crest in Middletown 12 hours after the crest in Hartford.
On average a predicted crest between 16 and 20 feet will crest in Middletown 8 hours after the crest in Hartford.
On average a predicted crest between 8 and 16 20 feet will crest in Middletown 21 hours after the crest in Hartford.
On average a predicted crest of less than 8 feet will crest in Middletown 28 hours after the crest in Hartford.

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The estimations in the calculator are based on the assumptions from past flood crest data and using bivariate Regression. The above calculator estimates the possible crest in Middletown using the following formulas:

Hartford crests greater than 28 feet: Middletown = (1.0553(Hartford) + -11.5273) error of 0.3479
Hartford crests greater than 24 feet and less than 28 feet: Middletown = (0.9069(Hartford) + -6.92428) error of 0.3694
Hartford crests greater than 16 feet and less than 24 feet: Middletown = (0.8576(Hartford) + -5.78117) error of 0.4511
Hartford crests greater than 8 feet and less than 16 feet: Middletown = (0.6432(Hartford) + -1.94808) error of 0.4656
Hartford crests less than 8 feet: Middletown = 0.0 - 3.5 feet

Hartford                   Middletown
Crest                       Crest
37.6 ft- 03/21/36     28.2 ft- 03/21/36
35.4 ft- 09/23/38     25.75 ft- 09/24/38
30.74 ft- 06/01/84   21.27 ft- 06/02/84
30.6 ft- 08/20/55     20.44 ft- 08/20/55
27.6 ft- 04/07/60     18.69 ft- 04/07/60
25.6 ft- 04/08/87     16.9 ft- 04/08/87
25.52 ft- 01/02/49   16.7 ft- 01/02/49
25 ft- 03/29/53        16.68 ft- 03/30/53
24.78 ft- 08/31/11   15.5 ft- 08/31/11
24.52 ft- 03/24/48   16.05 ft- 03/04/48
23.38 ft- 04/18/07   14.93 ft- 04/19/07
23.04 ft- 03/16/77   13.7 ft- 03/16/77
22.47 ft- 04/04/76   13.5 ft- 04/04/76
22.2 ft- 06/04/52     13.4 ft- 06/04/52
22.1 ft- 04/25/58     13.76 ft- 04/25/58
22.06 ft- 04/02/51   13.62 ft- 04/02/51
22.04 ft- 04/05/05   13.45 ft- 04/06/05
21.64 ft- 04/02/98   12.6 ft- 04/02/98
21.57 ft- 03/08/79   12.3 ft- 03/09/79
21.56 ft- 04/18/96   12.98 ft- 04/19/96
21.56 ft- 12/27/81   12.7 ft- 12/27/81
21.55 ft- 09/09/11   13.02 ft- 09/10/11
21.29 ft- 04/01/10   12.96 ft- 04/02/10
21 ft- 12/17/83        11.7 ft- 12/17/83
20.99 ft- 04/22/82   11.5 ft- 04/21/82
20.94 ft- 04/14/93   11.82 ft- 04/19/93
20.9 ft- 10/10/05     11.91 ft- 10/11/05
20.9 ft- 05/14/96     11.6 ft- 05/14/96
20.72 ft- 10/17/05   12.26 ft- 10/17/05
20.7 ft- 04/06/59     12.15 ft- 04/06/59
20.7 ft- 01/29/96     11.7 ft- 01/30/96
20.4 ft- 10/27/05     11.82 ft- 10/28/05
20.3 ft- 04/14/47     11.79 ft- 04/15/47
20.16 ft- 04/18/11   12.04 ft- 04/19/11
19.95 ft- 10/31/03   11.45 ft- 11/01/03
19.72 ft- 10/22/75   10.87 ft- 10/22/75
19.42 ft- 03/25/10   11.11 ft- 03/26/10
19.41 ft- 03/09/11   11.03 ft- 03/09/11
19.2 ft- 01/11/98     9 ft- 01/11/98
19.06 ft- 04/12/80   10.4 ft- 04/12/80
18.95 ft- 04/15/08   10.66 ft- 04/16/08
18.94 ft- 12/14/08   10.55 ft- 12/14/08
18.88 ft- 04/07/50   10.06 ft- 04/07/50
18.87 ft- 03/11/08   9.96 ft- 03/11/08
18.8 ft- 04/20/54     10.21 ft- 04/20/54
18.76 ft- 04/08/89   10.4 ft- 04/09/89
18.6 ft- 12/04/96     9.4 ft- 12/02/96
18.2 ft- 04/10/97     9.3 ft- 04/10/97
17.86 ft- 04/07/74   9.2 ft- 04/08/74
17.84 ft- 05/22/06   9.87 ft- 05/22/06
17.8 ft- 04/25/61     9.35 ft- 04/26/61
17.78 ft- 03/13/11   9.69 ft- 03/14/11
17.51 ft- 04/26/05   9.8 ft- 04/27/05
17.4 ft- 03/24/99     8.7 ft- 03/25/99
17.36 ft- 05/02/08   9.52 ft- 05/02/08
17.3 ft- 06/18/98     9 ft- 06/18/98
17.2 ft- 09/19/99     8.8 ft- 09/19/99
17.13 ft- 05/16/06   9.61 ft- 05/17/06
17.1 ft- 04/21/97     8.6 ft- 04/22/97
17.08 ft- 05/01/11   9.31 ft- 05/02/11
16.93 ft- 03/21/11   9.19 ft- 03/21/11
16.78 ft- 04/06/09   9.27 ft- 04/07/09
16.55 ft- 01/11/78   8.1 ft- 01/28/78
16.54 ft- 04/22/08   8.8 ft- 04/22/08
15.9 ft- 11/15/95     8.3 ft- 11/15/95

Incidents of Flood Crests by Month

Month	# Above 8ft	% Above 8ft	# Above 16ft	% Above 16ft	# Above 24ft	% Above 24ft
January	4	6%	1	10%	0	0%
February	0	0%	0	0%	0	0%
March	11	17%	3	30%	1	50%
April	27	42%	2	20%	0	0%
May	5	8%	0	0%	0	0%
June	3	5%	1	10%	0	0%
July	0	0%	0	0%	0	0%
August	2	3%	2	20%	0	0%
September	3	5%	1	10%	1	50%
October	4	6%	0	0%	0	0%
November	2	3%	0	0%	0	0%
December	4	6%	0	0%	0	0%

Percent Likelihood of High Flood Crests by Month, based on historical occurence

Month	% Above 8ft	% Above 16ft	% Above 24ft
January	5%	1%	0%
February	0%	0%	0%
March	15%	4%	1%
April	36%	3%	0%
May	7%	0%	0%
June	4%	1%	0%
July	0%	0%	0%
August	3%	3%	0%
September	4%	1%	1%%
October	5%	0%	0%
November	3%	0%	0%
December	5%	0%	0%