Sunday, March 20, 2022

1940,2003 US-23 Bridges and Lock & Dam on Cheboygan River in Cheboygan, MI

Drawbridge: (Bridge Hunter; Historic Bridges; Satellite)
Lock: (Satellite)
Dam: (Satellite)
Paper Mill: (Satellite)


2012 photo by C Hanchey via Bridge Hunter, License: Creative Commons Attribution-NonCommercial (CC BY-NC)

I'm trying to decide if the bascule leaves are wider than they are long. Historic Bridges agrees that the leaves are rather short. In fact, Bridge Hunter confirms that they are shorter than they are wide because a leaf's length is 35' but the deck width is 40'.
Old Postcard via BridgeHunter

As we have come to expect, the bascule bridge replaced a swing bridge.
HistoricBridges
Bridge Hunter

Historic Bridges explains that when they renovated the bridge in 2003 they used special posts similar to the old ones but with mounts for heavy inside beams to meet safety requirements. They also reused the original rail panels so that on the riverside one sees the historic appearance.
Street View


An over view of the dam, lock and paper mill. I've seen paper mills that make office paper that have gone out of business. But this mill makes toilet paper and Americans still use that.
David Mead, Sep 2019

Booker Fritz, Nov 2014
[It looks like all of the gates are all the way up. I was surprised by the Fall date because I had assumed this was runoff augmented by a Spring melt.]

Audrey Reynolds, Jun 2020

Booker Fritz, Nov 2013
[I checked the years. Booker's other Nov photo is labelled 2014.]

This is the only spillway I can remember seeing that has a sharp angle in it. That does make for an interesting water flow.
World Traveler, May 2020

A trail uses a walkway over the spillway so there are several photos of the hydraulic jump created by the two water flows colliding at the base of the spillway.
Jason B, Aug 2020

In fact, you get different water flows depending on which gates are opened.
Satellite

It looks like the lock has a non-trivial lift.
Diech67, Oct 2016

Diech67, Oct 2016

I noticed the "castle moat" drawbridge on the upstream side of the lock in the above photo. It appears that the drawbridge provides an access road to the paper mill.
Great Lakes Tissue Satellite

Mark Patterson, Aug 2020

In 2018, they had a serious maintenance issue because of the leak at the bottom of an upper gate.
Dan Pokriefka, Sep 2018

The hydropower plant by the lock generates just 1.5mw, and it is owned by the paper mill.
hydro

I'll bet this town started with mills powered by waterwheels.


No comments:

Post a Comment