Mackinaw Bridge Facts Photo:. Visitors in search of the Mackinaw Bridge will have to satisfy themselves with the Mackinac Bridge, which is the correct name for the functional yet elegant structure connecting the Michigan cities of Mackinaw and St. Extending an incredible 26, feet, or 5 miles, from shore to shore, the Mackinac remains one of the longest suspension bridges in the world and the longest how much money does the mackinac bridge make a year the Western Hemisphere, at time of publication. While the bridge’s overall length includes approach sections on a self-supporting pontoon, the actual suspended section of the bridge between anchorages measures 8, feet. The span between its towers is 3, feet — slightly longer than 10 football fields end to end — and the towers themselves reach a maximum height of feet. Since the bridge is for road traffic, the structure incorporates a four-lane highway — Interstate 75 — with a total width of 54 feet, poised feet above the water at midspan. The Mackinac design incorporated lessons learned from the infamous Tacoma Narrows Bridge collapse inin which the twisting bridge collapsed in high winds. The Mackinac was constructed as one of the safest bridges of its time; engineers used deck-stiffening trusses to help reduce oscillation of the structure. Since all suspension bridges are susceptible to movement, the Mackinac is designed to contort as much as 35 feet laterally in high winds, although the bend does not become a swaying motion, and the bridge gradually returns to its original form once conditions subside. The structure can also support 38, tons, or one ton per lineal foot of roadway, a reassuring statistic for the thousands of motorists who drive across each day. To give an indication of the increase in traffic across the Straits, the bridge celebrated its 50 millionth vehicle crossing inafter more than a quarter of a century of service.
Several high-wind warnings, two partial closures and one full closure due to falling ice, meant the bridge wasn’t as accessible as planned in March. According to a press release from the Mackinac Bridge Authority, regular fare passenger vehicles generated The bridge authority’s lone source of funding comes from the tolls collected. That money is used to maintain, operate, and protect the year-old National Historic Civil Engineering Landmark, according to the press release. Revenue should be high again in April as the weather warms up and events such as the Jeep the Mac will bring more travelers across the bridge. All rights reserved About Us. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Advance Local. Community Rules apply to all content you upload or otherwise submit to this site. Ad Choices. View from atop the Mackinac Bridge. By Matt Durr mattdurr mlive.
How much did it cost to build the Mackinac Bridge?
Please purchase a subscription to read our premium content. If you have a subscription, please log in or sign up for an account on our website to continue. Please log in, or sign up for a new account to continue reading. Thank you for Reading! On your next view you will be asked to log in to your subscriber account or create an account and subscribe purchase a subscription to continue reading. Courtesy photoThis image, taken by the Mackinac Bridge Authority during center grate replacement work in , shows the inch-high pipe curb and the inch-high railing that runs the length of the bridge. It also continues to strike fear in some who get more than a little nervous about crossing the five-mile-long span, even on the nicest of days. Sometimes it gets downright nasty, which can make a trip across the bridge a little nerve-wracking even for a hearty soul. Litzner said wind is the most common weather concern for vehicles crossing the bridge. Here is a breakdown of the minimum restrictions placed on bridge traffic at various wind speeds. Speeds are not for a single gust, but an average of five minutes. The direction of wind does not affect the rating. The escort is intended to make sure the high-profile vehicles maintain properly low speed. That speed will be no more than 20 mph, but could be less. Passenger vehicles not towing anything may cross the bridge, but at no more than 20 mph.
THE MACKINAC BRIDGE IN WINTER (2019) — Jason Asselin
How much money does the mackinac bridge make a year friends in your social network know what you are reading. The Mighty Mac will see its first major work since its construction starting around A link has been sent to your friend’s email address. A link has been posted to your Facebook feed. Welcome to our new and improved commentswhich are for subscribers. This is a test to see whether we can improve the experience for you. You do not need a Facebook profile to participate. You will need to register before adding a comment. Typed comments will be lost if you are not logged in. Please be polite. It’s OK to disagree with someone’s ideas, but personal attacks, insults, threats, hate speech, advocating violence and other violations can result in a ban. If you see comments in violation of our community guidelinesplease report. Michigan’s two peninsulas became truly connected 60 years ago this week, as the Mackinac Bridge opened to traffic on Nov. More: Michigan residents purchase pieces of Mackinac Bridge. The Mighty Mac is clearly going strong. But man-made things don’t last forever. So, how much life does the Mackinac Bridge have left in it? The Mackinac Bridge has many more generations of peninsula-switching motorists to facilitate, according to the man in charge of it. The authority operates as a employee bridge maintenance team that keeps it painted and repaired, Sweeney said.
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