TUESDAY JULY 22, 2014

The level gauge reading at Lake Sebago on Monday, July 21, 2014 was lake elevation 265.42 feet USGS Datum. This level is 1 foot 3 inches below the spillway crest, 0.7 inches below mid target range, and 3 inches above the August 1 target level of 265.17 feet. Lake level has decreased 3.1 inches since Wednesday, July 16, during which period the NWS recorded no precipitation in Portland. Woods pond reports a level on July 22, 2014 of 4.35 feet. 

 On Monday July 14, 2014, Warren began a capital project to install new gates in the Head Gate bypass structure to improve the ability to control water to the bypass reach. The project involves installing 5 stainless steel gates on the downstream side of the structure with an anticipated completion date of August 06. 

Based on current lake level the August 1 target, and the river gate construction work; outflows will be reduced to 50,000 cfm on Thursday July 24, 2014 with 3,000 cfm allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY JULY 17, 2014

The level gauge reading at Lake Sebago on Wednesday, July 16, 2014 was lake elevation 265.68 feet USGS Datum. This level is 11.6 inches below the spillway crest, 1.9 inches above mid target range, 0.4 inches below the upper target limit, and 5.8 inches above the August 1 target level of 265.17 feet. Lake level has decreased 2.4 inches since Thursday, July 10, during which period the NWS recorded 1.1 inches of precipitation in Portland. 

 On Monday July 14, 2014, Warren began a capital project to install new gates in the Head Gate bypass structure to improve the ability to control water to the bypass reach. The project involves installing 5 stainless steel gates on the downstream side of the structure with an anticipated completion date of August 06. While the existing gates are available for emergencies, continued unseasonable precipitation could impact Warren’s ability to meet the August 01 target lake level. 

Based on current lake level and the river gate construction work, outflows will remain 70,000 cfm for the coming week with 4,500 cfm allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site.

Please use caution and obey all warning signals and signage in the vicinity of the dams.

FRIDAY JULY 11, 2014

The level gauge reading at Lake Sebago on Thursday, July 10, 2014 was lake elevation 265.88 feet USGS Datum. This level is 9.2 inches below the spillway crest, 2.8 inches above mid target range, and 0.1 inches below the upper target limit for this date. Lake level has decreased 0.6 inches since Sunday, July 06, during which period the NWS recorded 0.96 inches of precipitation in Portland. 

Based on the August 1 target of 265.00, outflows will be increased today, Friday, July 11, 2014 to 70,000 cfm with 5,000 cfm allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information by participating in surveys with staff or visiting the on-line survey page such that we may continue to improve our sites.

Double Click Survey to be directed to the survey website. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

MONDAY JULY 7, 2014

The level gauge reading at Lake Sebago on Sunday, July 06, 2014 was lake elevation 265.93 feet USGS Datum. This level is 8.6 inches below the spillway crest, 2.4 inches above mid target range, and 5.8 inches above the lower target limit for this date. Lake level has increased ¼ inch since the last full report Wednesday, July 02, during which period the NWS recorded 2.96 inches of precipitation in Portland. 

On Tuesday July 8, 2014 Warren will be removing debris from the Saccarappa dam eastern spillway. To safely accommodate this work outflows from Sebago will be reduced today to 40,000 cfm with 4,500 cfm allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY JULY 3, 2014

A severe thunderstorm delivered 0.56” of precipitation yesterday afternoon raising lake level. Due additional precipitation forecast for today and tomorrow, the planned flow reduction will be deferred.

Outflows will remain 65,000 CFM with 4,500 CFM allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

  S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site.

Please use caution and obey all warning signals and signage in the vicinity of the dams.

WEDNESDAY, JULY 2, 2014

 The level gauge reading at Lake Sebago on Tuesday, July 01, 2014 was lake elevation 265.91 feet USGS Datum. This level is 8.9 inches below the spillway crest, 0.8 inches above mid target range, and 4.9 inches above the lower target limit for this date. Lake level has decreased 2.0 inches since the last report on Thursday June 26, 2014, during which period the NWS reports precipitation in Portland at 0.77 inches.

Based on the above, outflows will decrease to 55,000 CFM tomorrow, July 3, 2014 with 4,500 CFM allocated to the bypass reach and a further temporary reduction on or about Monday, July 7, 2014 to accommodate downstream maintenance on July 9. 

All Recreation features at downstream projects are open. 

  S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site.

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY, JUNE 26, 2014

The level gauge reading at Lake Sebago on Wednesday, June 25, 2014 was lake elevation 266.08 feet USGS Datum. This level is 6.8 inches below the spillway crest, 1.2 inches above mid target range, and 6.1 inches above the lower target limit for this date. Lake level has decreased 4.7 inches since the last report on Thursday June 19, 2014, during which period the NWS reports precipitation in Portland at 0.92 inches. Today’s 15 minute averages indicate the lake has increased 0.7 inches as a result of yesterday’s precipitation event with the full impact yet to be realized. There are no other impoundment reports to include with relevant data. 

Based on the above, downstream work planned for July 9 as indicated in last week’s report, and a decreasing upper target level; outflows will increase to 65,000 CFM on Friday, June 27, 2014 with 4,500 CFM allocated to the bypass reach. Outflows will be re-evaluated once the full impact yesterdays precipitation has been realized. 

All Recreation features at downstream projects are open. 

  S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY, JUNE 19, 2014

The level gauge reading at Lake Sebago on Wednesday, June 18, 2014 was lake elevation 266.47 feet USGS Datum. This level is 2.2 inches below the spillway crest and 10 inches above the lower target limit for this date. Lake level has decreased 1.6 inches since the last report on Thursday June 12, 2014, during which period the NWS reports 2.3 inches of precipitation. 

Other impoundment reports for the week are Woods Pond reporting a level of 4.45 feet or 0.05 feet below full pond, and 0.35 feet above summer dam settings of 4.1 feet. The State Park reports an upstream level of 272.5 for Long Lake and both sluice gates closed with no immediate plans for reopening. 

 Based on the above, and a decreasing upper target level, outflows will increase to 60,000 CFM on Friday, June 20, 2014 with 4,500 CFM allocated to the bypass reach. 

On or about July 9, 2014, S.D. Warren will reduce the impoundment level at the Saccarappa Project, FERC P-2897, for the purposes of removing debris from the vicinity of the spillway. The reduction will be approximately 3 ft below the spillway crest or 66.95 ft NGVD, and is anticipated for two (2) days duration. 

All Recreation features at downstream projects are open. 

  S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY, JUNE 12, 2014

The level gauge reading at Lake Sebago on Wednesday, June 11, 2014 was lake elevation 266.52 feet USGS Datum. This level is 1.6 inches below the spillway crest and 9.7 inches above the lower target limit. Lake level has decreased 1.6 inches since the last report on Thursday June 5, 2014 when the lake was at full pond, while the NWS reports negligible precipitation during the period. 

Other impoundment reports for the week are Woods Pond reporting a level of 4.4 feet or 0.1 feet below full pond, and 0.3 feet above summer dam settings of 4.1 feet. The State Park is reporting one sluice gate open with plans for closing that gate on Saturday morning dependant on the significance of forecast precipitation. 

 Based on the above, outflows will remain 55,000 CFM with 4,500 CFM allocated to the bypass reach. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

THURSDAY, JUNE 05, 2014

Based on instantaneous readings, the level gauge at Lake Sebago today, June 5, 2014 reached 266.65 feet USGS Datum. This level equates to full pond and spillway crest and is 10.4 inches above the lower target limit. Lake Level has increased 1.3 inches since Tuesday, May 27, 2014 while the area has received 0.11 inches of precipitation with additional precipitation forecast for today. 

Woods Pond reports a level of 4.6 feet or 1.2” above full pond. 

Based on the above, outflows to the Presumpscot will be increased today June 5, 2014 to 55,000 CFM with 4,500 CFM allocated to the bypass reach. Additional flow increases will be considered based on precipitation and inflow. 

All Recreation features at downstream projects are open. 

 S.D. Warren is collecting recreation site use and monitoring data for all our hydro sites. Please assist us in collecting this valuable information such that we may continue to improve our sites.

Double Click Survey to be directed to the survey site. 

Please use caution and obey all warning signals and signage in the vicinity of the dams.

 

sappi | warren release papers hydroelectric power updates

The purpose of this site is to inform the community of water level changes to Sebago Lake and flow changes in the Presumpscot River. Information and updates on recreational facilities along the river is also available.

For questions, please contact us at presumpscotriver@sappi.com.
My Site

Eel Weir Sebago Basin Spillway

My Site

Eel Weir Fishing Access at bypass reach, Route 35, Windham

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Eel Weir Fishing Access at Tailrace, Middle Jam Rd, Windham

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Dundee Tailrace View downriver from under Angler Bridge to bypass reach. Dundee Rd, Windham

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Gambo Portage Downstream from Gambo Pond, fishing access to the bypass reach, or hike with connection to the Mountain Division Trail and Oriental Powder Mill complex maintained by PRLT. http://www.prlt.org/

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Little FallsRoute 202, between Windham & Gorham

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Mallison Falls Angler access bridge to the bypass reach. Canal St., Gorham

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Saccarappa Falls View from Bridge St, Westbrook

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Cumberland Mills Fishway Opened May 1, 2013, Cumberland St, Westbrook