Times Herald - www.thetimesherald.com - Port Huron, MILake levels nearing record lows
Waterfront homes have more beach; ships sail lighter
By BOBBY AMPEZZAN
Times Herald
When Jerry Eschenburg, 49, surveys the scene in front of his East China Township home there are a few things that stand out: a two-year-old "For Sale" sign, a beach spreading in front of a flood wall, a Jet-Ski lift suspended above sand that once was covered by water.
Eschenburg said he doesn't think low water levels in the St. Clair River and Lake Huron are turning prospective homebuyers away from his waterfront property - "nothing's selling right now, let's face it" - but it's not helping.
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Water levels in lakes Huron and Michigan are teetering just above an all-time low, and everything from shipping to power generation, to recreational boating to water habitat may be hurt.
On Friday, the U.S. Army Corps of Engineers released a six-month forecast that predicts water depths for the lakes will hover just above record-setting lows through the winter months.
The all-time low water depth for the lakes for the month of January - 576.12 feet - was set in 1965. As of Friday, the depth was 576.31 feet.
Lake Huron is more than 2 feet shallower than average, and 5 feet shy of the record high set in 1987.
"We have been below average on Michigan-Huron for quite some time, since about 1999," said Keith Kompoltowicz, a meteorologist with the corps. "There have been times where we've seen above average rainfall, but it hasn't been enough to get the level climbing back to closer or higher than average."
Kompoltowicz said lake water levels are determined largely by the amount of water running into the lake basin, fueled either by rain or melted snow and ice, and the amount of water evaporating from the surface of the lakes.
"Looking back at January (and) February, 2007, almost 8 inches evaporated just in that two month period," a period when the average evaporation rate is 5½ inches, the meteorologist said.
The low lake levels have meant area boaters are doing more with less.
Eschenburg said his neighbor takes her Jet Ski to a local marina to put it in the water, and his brother had to push the family's 40-foot house boat out into the St. Clair River before he could reach water deep enough to run the propeller.
Cynthia Sellinger, a hydrologist for the National Oceanic and Atmospheric Administration's Great Lakes Environmental Research Laboratory in Ann Arbor, said marinas on lakes Huron and Michigan are spending more money on dredging, hydropower plants are running at half capacity or less, and floodplains and wetlands are drying up.
But the biggest impact has been on commercial shipping. For every inch of clearance lost in the lakes, freighters must shed between 11,000 and 22,000 pounds.
Glen Nekvasil, spokesman for the Lake Carriers' Association, said the largest recorded shipment carried through lakes Huron and Michigan in November was about 63,000 tons. When the water is high, freighters may carry upward of 72,000 tons in a trip.
Shipments of coal to Detroit Edison's St. Clair Power Plant were down 10,000 tons in December to about 61,000 tons, he said. The reduced amount of coal could produce electricity for the entire greater Detroit area for three hours.
In a three-week span in August and September this year, two 1,000-foot freighters ran aground in the mouth of the harbor in Muskegon.
"We can't control evaporation. We can't control precipitation, but we can dredge the Great Lakes," Nekvasil said.
Commercial shippers pay into the federal Harbor Maintenance Trust Fund, which Nekvasil said has a surplus of between $3 and $4 billion, some of which he thinks should be used for dredging.
Nekvasil said according to estimates from the Army Corps of Engineers $230 million is needed to "clear up the dredging backlog on the Great Lakes."
Dredging may be part of the problem.
Sellinger said the International Joint Commission, a bi-national organization formed to solve water management disputes, has commissioned a $14 million study that will in part evaluate whether dredging - particularly in the St. Clair River - has accelerated the speed at which water in lakes Huron and Michigan is draining into Lake Erie.
She said the study may recommend the corps implement "compensating work," such as a weir, which would slow the flow of water out of the lakes.
