Since concrete might pose a weight problem for the supports on the timber-deck bridges, the lighter steel grate often was used instead, according to Heffner, bridge maintenance coordinator for ...

The Mackinac Bridge is once again auctioning off vintage steel deck grating from the bridge.

The Mackinac Bridge Authority is auctioning off original, 60-year-old steel grating from the Mackinac Bridge deck.

Have you ever wanted to own a piece of the Mackinac Bridge? This auction is for you! The Mackinac Bridge Authority is auctioning off pieces of what they’re calling “vintage steel deck grating ...

Pieces of grating from the Mackinac Bridge are for sale for $20 each. They come in sizes of 5-by-8 and 5-by-11 inches. Mackinac Bridge Authority ...

MDOT is selling five, identical pieces of the original Mackinac Bridge grating separately to the highest bidder. Michigan Department of Transportation ...