If the shallow spot you find is less than 135 feet from a blue area on Bizer's chart,
Bizer shall give you $150.
No correction to Bizer's map is too small. email us
at winni@bizer.com.
We really do want to make this a perfect product. With your help, we might
just do it.
BIZER's Surface level of Lake Winnipesaukee
Lake Winnipesaukee's surface level is measured in feet.
Readings are made daily by the New
Hampshire Department of Water Resources.
The datum (zero point) is 500 feet above sea level. Median heights are
based upon data from
1984 through 2002.
As a rule of thumb,
assume: High Tide: June;
Low Tide: February. Temperature, (F),
readings are taken at the Lakeport Dam
about one foot below the surface.
The below historical statistics are updated
periodically: normally weekly or whenever the lake
level changes by more than two inches.
2009 Actual Deviation Outflow at
Date Height from Norm Lakeport Dam
----- ---- --.-- TEMP ---- ---
04/02 Thu 3.66 + .37 37 781 CFS
04/09 Thu 4.16 + .56 37 1238 CFS
04/16 Thu 4.12 + .19 40 1017 CFS
04/23 Thu 4.10 + .02 42 1767 CFS
04/30 Thu 4.00 - .15 50 997 CFS
05/07 Thu 4.05 - .04 51 392 CFS
05/14 Thu 4.16 - .04 53 290 CFS
05/21 Thu 4.19 - .06 56 287 CFS
05/28 Thu 4.26 - .01 58 304 CFS
06/04 Thu 4.37 + .07 63 307 CFS
06/11 Thu 4.31 + .05 63 667 CFS
06/18 Thu 4.49 + .25 63 1365 CFS
06/25 Thu 4.49 + .25 65 1692 CFS
07/02 Thu 4.35 + .20 68 1684 CFS
*--------------------------------------
For height above sea level, add 500 feet
Click here for NH DES graph of the last two weeks.
Notes:
-
The flow is the amount of water
leaving Lake Winnipesaukee at the Lakeport Dam. It is measured in cubic feet per second (CFS).
To put this in perspective, 1920 CFS
is enough to fill about 45 swimming pools each minute.
For a period of 24 hours, 1920 CFS yields 1.24 billion gallons, or enough water to lower the level
of Lake Winnipesaukee one inch. The flow fluctuates depending
on the time of year and the lake's height. The long-term
average is about 550 CFS.
-
Bridge heights reported on Bizer's
chart assume a full lake level of 4.3
feet.
To calculate today's bridge clearance for
any bridge on Lake Winnipesaukee, add 4.3 feet to the
height shown on Bizer's chart. Then subtract the most recent lake
surface-level
reading to obtain the actual clearance of any bridge. For example: to
compute the clearance of the Long Island Bridge on 17-Apr-00, add the published
bridge clearance (7.7 feet) to the full lake reading of 4.3 feet to get a subtotal of
12.0 feet. Now subtract the April 17th surface-level reading of
4.1 feet to get the actual clearance of 7.9 feet.

Additions & corrections to Bizer's
eighth edition Winnipesaukee chart:
The map grid is enclosed in [brackets]
- Boat launching is not longer availabel to the general public at Ames Farm Inn
(Grid H-12 on Bizer's chart).
- Effective in 2009, the M/S Mount Washington no longer serves the ports
of Meredith and Center Harbor; Only Weirs Beach, Wolfeboro, and Alton.
- Effective in 2009, the speed limit on Winnipesaukee shall be 45 MPH during
the day and 25 MPH at night.
This information is not on the chart because the law expires at the end of 2009.
Additions & corrections to Bizer's
seventh edition Winnipesaukee chart:
All updates are in Bizer's 8th edition.
The map grid is enclosed in [brackets].
- Sep-08 - Effective 2009, the speed limit on Lake Winnipesaukee shall
be 45 miles-per-hour (MPH) during the day and 25 MPH at night.
- Jul-08 - Bizer has been informed that Downing's Landing at the
southern end of Alton Bay does NOT sell gasoline.
- Jun-08 - Bizer has been informed that the boat launch at Pier 19
(Grid B-9 on Bizer's chart) is open to the public.
- May-08 - I noticed that the Burger King, accessible by boat
in Paugus Bay, is no longer in business.
- Jul-07 - A boater has reported that the C-Map cartridge of Winnipesaukee
has incorrectly labeled light #26 as light #53.
Light #53 is correctly labeled.
- Jul-07 - The Marine Patrol has notified Bizer that Buzzel Cove in
Moultonborough has been designated a NO-RAFTING area.
- May-07 - A new No-Rafting area has been added in/at/near Advent Cove in Meredith.
- May-07 - Green buoys named, "See 150", have been placed exactly 150 feet from the
following docks: Alton, Center Harbor, Glendale, Meredith, Tuftonboro,
and Wolfeboro. They are to assist boaters in judging distances.
- May-07 - It has been reported that the following places to eat (by boat) are
no longer in business: The ice cream shop next
to Coe House, Center Harbor; The LakeSide Deli, Meredith
- Apr-07 - Service and repairs are no longer available in
Center Harbor.
- Sep-06 - It has been reported that the C-Map chip of Winnipesaukee has
incorrectly colored (or swapped) the two buoys east of Twin Islands
in Moultonboro Bay.
- Sep-06 - A boater has reported an uncharted rock west of the northern
end of Joes Island in Moultonborough Bay. On Bizer's chart, this is near
the "h" in "Smith Cove".
Bizer intends to visit this location during September, 2006.
- Aug-06 - In an effort to assist boaters in judging distances,
green & white buoys have been placed exactly 150 feet from the piers
at Wolfeboro, Alton, Meredith, and Center Harbor.