23 Mile Road–Kalamazoo River Bridge facts for kids
Quick facts for kids 23 Mile Road–Kalamazoo River Bridge |
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| Coordinates | 42°16′06″N 84°50′52″W / 42.26827°N 84.84769°W |
| Characteristics | |
| Total length | 60 feet (18 m) |
| Width | 25.6 feet (7.8 m) |
| Longest span | 60 feet (18 m) |
| Number of spans | 1 |
| History | |
| Construction cost | $10,353 |
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23 Mile Road–Kalamazoo River Bridge
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| Built | 1922 |
| NRHP reference No. | 99001611 |
| Added to NRHP | December 22, 1999 |
The 23 Mile Road–Kalamazoo River Bridge is a special kind of bridge in Marengo Township, Michigan. It carries 23 Mile Road over the Kalamazoo River. This bridge was built in 1922 and is recognized as a historic place. It is listed on the National Register of Historic Places.
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History of the Bridge
Before this concrete bridge was built, an older bridge stood in its place. It was likely made of steel. In January 1922, the Michigan State Highway Department planned the new bridge.
Who Built the Bridge?
Calhoun County built the bridge as a "State Reward Bridge." This meant the state helped pay for it. A company called Mead Brothers from Battle Creek took down the old bridge. They also built the new one. The whole project cost $10,353.
Why Is It Historic?
The 23 Mile Road–Kalamazoo River Bridge was added to the National Register of Historic Places on December 22, 1999. It was chosen because it is one of the oldest bridges of its kind. It is also very well-preserved, meaning it is still in great condition. Another bridge in Calhoun County, the 12 Mile Road–Kalamazoo River Bridge, was added on the same day.
How the Bridge Was Designed
The bridge runs north to south. It is located about 0.4 kilometers (0.25 miles) south of Marengo. The area around it is mostly rural.
What Kind of Bridge Is It?
This bridge uses a special design called a "curved-chord through-girder." The Michigan State Highway Department created this style in the early 1920s. The bridge has one main section that is 18 meters (60 feet) long.
Unique Features of the Bridge
The main support beams, called girders, also act as the railings. They have a curved top surface. Along the sides, these girders have oval-shaped openings. Inside each oval, there are six smaller openings. The corners of the bridge have square posts. These posts have Armco guard rails attached to them. You can find a special bridge plate on the northwest corner post.
