Construction along the shorelines can put a strain on natural systems. (Photo by Carole Swinehart/Michigan Sea Grant Extension)
One of the more subtle but relentless threats to the Great Lakes is
coastal development. Condos, ever larger and nicer beach homes
and buildings and parking lots in the watershed all have an
impact on the Lakes. As the population grows and the suburban
lifestyle keeps spreading, the health of the lakes is compromised
in countless tiny ways. Reporter Peter Payette finds those tiny
ways all add up:
Transcript
We’re continuing our look at ‘Ten Threats to the Great Lakes.’
Lester Graham is our guide through the series. He says the
experts who were surveyed to determine the threats say rapid
development is among the problems affecting the lakes:
One of the more subtle but relentless threats to the Great Lakes is
coastal development. Condos, ever larger and nicer beach homes
and buildings and parking lots in the watershed all have an
impact on the Lakes. As the population grows and the suburban
lifestyle keeps spreading, the health of the lakes is compromised
in countless tiny ways. Reporter Peter Payette finds those tiny
ways all add up:
Greg Reisig is standing at the edge of a 20-acre construction site
just down the street from the shore Lake Michigan.
Below him is a man-made pond a few hundred feet long. It was a
dry summer around here, but the pond is full.
In fact, Reisig says the water level is always the same.
“And that indicates there’s a lot of ground water flowing
here…there’s a lot of water in this pond and you can see what
was a whole big wetland complex…there’s a lot of cedar and red
osier dogwood…all the wetland plants.”
There are no wetlands here now.
The site in northern Michigan was excavated for homes a few
years ago.
But now the Army Corps of Engineers says the wetlands that
were here need to be restored. A few acres likely will be
restored. But Reisig says almost the whole site was wetlands
once. He expects it will soon be a subdivision with not much
more than a drainage ditch connecting it to Lake Michigan.
“What will that do to the amount of flow of water going into the
bay? Because of hard road surfaces, hard driveways, roofs,
buildings and supposedly fertilized lawns. What will happen to
the water and how will that increase the flow to the bay?”
The developer’s attorney says this is nonsense. Matt Vermetten
says this land was heavily farmed and mined for clay.
“There are pockets of quote unquote wetland and those are there
because of excavation for clay. So is this a wetland complex of
the nature we speak of when we typically speak of such a thing? I
think not.”
Disputes like this are becoming more common around the Great
Lakes. John Nelson is the baykeeper with the Grand Traverse
Bay Watershed Center. The bay off Lake Michigan and attracts a
lot of people. But Nelson says development doesn’t have to be a
problem.
He says the problem is people don’t think about the ecology of
the lakes. For example, east of Traverse City, Michigan, resorts
dominate the coastline. Along the beach, thick stands of sedges
and rushes extend out a few hundred feet. But the sections of
dark green marsh alternate with stretches of clean sand and white
lawn chairs.
(birds calling on beach)
Nelson grew up here and says this part of the lake was never a
sugar sand beach.
“They’ve located in a coastal marsh. Instead of celebrating and
dealing with that they’ve chosen to see it as they would like to
have it and then change it.”
The impacts of the changes are cumulative. Fish and wildlife
habitat is fragmented. The natural filtering properties of the
wetlands are gone.
So every time the city gets a rain shower all the dust and grime
and pollution are washed right into the lake.
Census data show people are leaving many of the Great Lakes
coastal cities and spreading out along the coastline. But it’s not
clear how local governments should plan for the growth.
Mike Klepinger studies land use planning for the Michigan Sea
Grant program. He says it’s hard to make direct connections
between a healthy lake and particular land uses.
“We are getting more planning along the shoreline than we had
thirty years ago in the state. The number of counties and number
of townships that have a plan has gone up, for example. But we
don’t know whether those plans are really doing any good.”
And it’s hard to implement good planning on a broad basis. In
any area, dozens of different local governments might have
independent control over development.
Multiply that by the number cities, townships and counties along
the coasts of the Great Lakes… and it’s hard to see how it all can
be managed so that enough coastline habitat is preserved.
For the GLRC, I’m Peter Payette.