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University of Windsor invasive species research centre closes
CBC News (5/27)
The Canadian Aquatic Invasive Species, based at the University of Windsor, is closing because it's run out of federal funding.

Stockbridge HS invention to monitor Great Lakes pest
Lansing State Journal (5/27)
In Michigan, a team of Stockbridge High School students has spent the past year designing an underwater camera to keep tabs on the state’s fight against invasive sea lampreys. Next week their invention will get its first real test.

'Once in a lifetime ' experience: Lighthouse keeper on Lake Superior
CBC News (5/19)
A group is hiring two students to serve as lighthouse keepers this summer on Porphyry Island, about 40 kilometers east of Thunder Bay, Ont.

Superior students set sail for hands-on learning about St. Louis River, Lake Superior
Wisconsin Public Radio (5/16)
Close to 1,500 students from northern Minnesota and Wisconsin set sail for a day on St. Louis River to learn about the Great Lakes, as part of the week-long St. Louis River Quest.

Tree group aims to ‘ReLeaf’ Michigan
WKAR - East Lansing, MI (5/10)
An Ann Arbor-based organization has been planting trees all over Michigan since 1988. ReLeaf Michigan helps property owners learn about trees and how to plant them, citing their numerous benefits.

Coldwater bacteria threatens Great Lakes salmon
Charlevoix Courier (5/3)
A new study shows a bacterial disease that sickens fish whether raised in captivity or in the wild is imperiling popular salmon species in the Great Lakes Basin.

TEACH Calendar of Events
What's going on in your neighborhood this month? Meet other people and learn together at recreational and educational events! Our new dynamic calendar is updated daily with current educational events.
TEACH: Building the Mackinac Bridge

table of contents
Introduction
The construction period: 1954-57
Bridge trivia
References and more information

The Mackinac Bridge looking south. Rising 552 feet (that's 55 stories!) above the Straits of Mackinac, where lakes Michigan and Huron meet, is the world-famous Mackinac Bridge. Also known as the "Mighty Mac," this engineering marvel is 5 miles long and, anchor block to anchor block, holds the record as the longest suspension bridge in the world!

Before the Mackinac Bridge was constructed, travelers between Michigan's upper and lower peninsulas had to cross the Straits via an an hour-long ferry ride. On busy weekends, like the start of hunting season or the Fourth of July holiday, carloads of anxious travelers would wait in line as long as 24 hours to catch a ferry.

Although the bridge was envisioned way back in the late 1800s, Sen. Prentiss M. Brown, Sr., the "Father of the Mackinac Bridge," was the key figure in the bridge construction project. Governor-elect G. Mennen (Soapie) Williams was another strong advocate for the bridge and helped to create the Mackinac Bridge Authority in 1950. Steinman quote.The bridge designer was Dr. David B. Steinman and primary contruction firms were Merrit-Chapman & Scott and the American Bridge Division of U.S. Steel.

Today, the Mackinac Bridge is hailed as one of the most outstanding engineering achievements of the century and leaves people wondering how Michigan ever got along without it! The 100 millionth crossing of the bridge happened on June 25, 1998.

View from the Mackinaw City shore, May 2000.

Images: The Mackinac Bridge looking south, and view from the Mackinaw City shore (May 2000), both courtesy Christine Manninen.

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