Local Myths and Rumors
isn’t Possum Kingdom Lake a constant level lake like
Granbury is not a constant level lake. However, since
Lake Granbury is below Possum Kingdom Lake, any discharge
of water from Possum Kingdom, either for power generation
or passing through of flood water, is received by Lake Granbury
making it seem constant level.
Kingdom Lake is the most northerly lake on the main tributary
of the Brazos River. Since Morris Sheppard Dam is the first
dam on the river, the only way that Possum Kingdom Lake
is filled is through rainfall and runoff in the Brazos Basin
above the dam which is largely in the arid region of northwest
MYTH: Why does Possum Kingdom Lake have to release water for people to canoe down the River?
Kingdom Lake was built to produce hydropower, which requires
releasing water from the Lake through the turbines and into
the River. The Morris Sheppard Dam hydropower electrical generating facility is considered a “peaking” plant. This means that if there is a need in the statewide power grid for an increase in voltage, the hydro-plant is put on-line, often with only 10 minutes notice. The power grid runs low on voltage during times of peak usage of electrical power, such as in the afternoons of hot summer days. Since the Morris Sheppard Dam hydropower electrical generating facility is called into service frequently in the summertime, water is released frequently. Water
released into the river goes directly into Lake Granbury,
making it appear to be constant level since it receives
this continual inflow of water, however, water is not released
solely to replenish the level of Lake Granbury or to allow
canoeists to have water in the River.
MYTH: Why is it easier to get approval after doing what I want to do on my lot, rather than to get approval ahead of time?
ANSWER: It’s not. The Authority regularly inspects all Authority leased property, as well as all on-the-water facilities such as docks. When an unpermitted improvement is noted, the owner of the improvement is notified. If the improvement is not removed or permitted, the Authority begins to issue citations (tickets) each day until the improvement is removed. Legal action against encroachments in the lake has also occurred in the past. Prior
approval of all improvements is required through lease contracts,
and Authority regulations.