When the Levee Breaks: Part Two
(WDAY News Script)
Back in February, the National Weather Service warned the people
of the Red River Valley of the possibility of record spring
flooding. This early warning helped local officials prepare for
the flood.
Marv/News Center 6:
But in Grand Forks and East Grand Forks, the river rose even
higher than the predictions... Tonight... In part two of when the
levee breaks... John Wheeler looks at whether or not the disaster
could have been prevented.
Sounds Of... Drum Beat, Guitar
Mike Anderson/National Weather Service:
Something took place that wasn't the norm in Grand Forks. It just
was not in the mode of what was happening in the other locations
in the Valley.
John Wheeler/News Center 6:
The National Weather Service clearly had no idea that the red
would eventually go to fifty-four feet twenty six feet over flood
stage and two feet higher than the dikes that had been sandbagged
to fifty-two feet. Early crest predictions had said forty-nine
feet, but then came the rain and snow on april fifth and sixth.
Severe flooding hit Breckenridge, Minnesota. Still, the forecast
of forty-nine feet did not change. Cold weather made it difficult
for the weather service to gauge the effects of overland run off.
A week later, on Monday, April fourteenth, with the stage at
forty-three point seven feet, the crest prediction was raised to
fifty feet. By Wednesday, the river had risen dramatically to
forty-eight feet, and the crest prediction was raised to fifty
and a half. But the river continued to rise at two feet a day.
And the Weather Service had a hard time keeping their predictions
ahead of the river.
Mike Anderson/National Weather Service:
Really the five bridges... the four or five bridges in Grand
Forks definitely had a major impact... of those being overtopped
and the ponding in back of those bridges and the rate of rise
that those constrictions had.
Sounds Of... Helicopter
John Wheeler/News Center 6:
But what if the forecast had been right? Would higher dikes have
contained the water? We asked that question of Tim Bertschi of
the Army Corp of Engineers.
Tim Bertschi/Army Corp Of Engineers:
I think there would've been significant problems. I don't really
see... if we would've had additional time... I don't see the
results being changed. I really don't. When you're putting raw
clay up on top of that thing and you have velocities of eleven
feet per second in the river, which is phenomenal for that river,
I just don't have a whole lot of confidence that the protection
would have held even if it had been high enough in those areas.
Sounds Of... Helicopter
John Wheeler/News Center 6:
And because of the incredibly flat terrain in the Grand Forks
area, it would have been difficult to have found ground high
enough to have built a second line of defense.
Tim Bertschi/Army Corp Of Engineers:
In order to fully protect Grand Forks, you almost would've had to
fall back to Washington Avenue, which we did after the flooding
and built a levee to dry out the western part of town.
John Wheeler/News Center 6:
As far as the alledged controversy between the weather service
and the Corp of Engineers, Bertschi says this is not as important
as it seems. Bertschi says the corp didn't really know the water
would go as high as it did until the last two days before the
disaster, not in time to build the levees higher. And the force
of the water was breeching levees at fifty-one and a half feet
anyway. It is likely that this disaster was simply bound to
happen. John Wheeler, WDAY NewsCenter Six. Tomorrow... In part
three of When the Levee Breaks... John Wheeler looks at how Fargo
Moorhead avoided a disaster like the one in Grand Forks.