His surviving company Greiner Engineering built the Bay Bridge - and the harbor tunnel, Friendship airport, the Mystic River bridge, the Tampa and Orlando airports and much of I-75. It was owned by Easco Corporation of Baltimore where I was an officer for awhile. He built a home on St. Paul St in Guilford where members of the Mitchell family lived for many years.

So happy to see my favorite bridge in one of your videos! Thank you for the informative historical and engineering perspectives.

When I worked in BG&Es gas division out of Front Street many years ago, we had a detailed drawing of the Hanover St. Bridge due to it carrying a large cast iron gas main from the Spring Gardens gas plant across the river to Brooklyn. At the draw span, the gas main traveled down the bridge pier, across the river bed, and back up the pier on the other side of the span. Every cast iron pipe joint was drawn in detail. The overall drawing details were impressive and all inked by hand back when drafters had to be very skilled in both drawing and lettering style. I believe the drawing was put in the company's historic archives at the Front St. Complex along with other early gas company artifacts like the original field book of the Gas Light Company of Baltimore founded by Rembrandt Peale.

Thanks for another informative video! I used to like using that bridge to go from the Brooklyn Park area into South Baltimore & Federal Hill when I used to live in Laurel, MD (much better than the busy, congested 295 route). However, I never knew that I was using such a unique & historical bascule bridge!

Back in the 70s we used to go fishing and crabbing underneath the bridge to the Trussell into some big storm and ever since it's been watering underneath the the bridge

I like the I-296 bridge. You can see the city skyline as you are coming into the city. You can also see the stadiums from up there.

One point of correction. While J E Greiner was involved in building the Hanover Street Bridge, he could not have been personally involved with the Bay Bridge because he died in 1942. Probably it was the Greiner company but not Greiner himself.

Another enjoyable segment, Johns. Thanks for doing these. Another comment. The bridge over the Susquehanna is not a railroad bridge, but the Rte. 40 bridge, now known as the Hatem Bridge.

Yeah the potholes on that bridge definitely show it’s age

Greiner Engineering designed the bridges, so deserves much credit that they have stood and functioned this long. The bridges were constructed by others, who were construction contracting firms. But that is another future story.

This bridge is so rough to drive over 😮‍💨

Very interesting video. I'm sure the mechanism to raise the bridge is still operational, but do they do they still open the bridge on a regular basis to let boat traffic out? Thanks

And remember the Maryland Yacht Club.

That bridge been there since 1916? 😳

Anyone know the last time the span was opened?

Nice video, but it’s called the Vietnam Veterans Memorial Bridge.