On September 15, 2007, one of my oldest friends and I went in search of the original alignments of US 31 in Indiana from the Michigan state line to Indianapolis. I wrote about this trip on my old Roads site back then, but am now bringing those articles over to this blog.
Peru was next, just a couple miles down the road from Mexico. Some pronounce it PEE-rue and old maps sometimes spell it Perue, but I understand most locals agree it’s spelled and pronounced like the South American country. Built on the Wabash River, with a railroad and US 24’s original route running east-west through it, Peru is wider than it is tall, as this map shows.

Just outside this map to the north is US 24, so Peru has been bypassed by two US highways. Business US 31 enters from the north on Broadway St., then turns west onto Main St. (Business US 24), and then crosses the Wabash on the little yellow-highlighted road in the lower left corner of the map.
The first thing we encountered on old US 31 in Peru was the Mr. Weenie restaurant. The sign struck me funny, so I stopped for a photo.

When we reached the edge of downtown at 6th St., we found old US 31 closed. We parked to find out why.

As we neared the Miami County courthouse, we could see that a classic car show was being held in front of it. Wow!

I love old cars! Brian indulged me as I walked among them and photographed them. I shared the car photos in this post.

I had been through Peru once before and I remember seeing US 31 and US 24 shields guiding the way through town. I suppose I was too intoxicated by the vintage iron to look for them that day. Because of the car show we couldn’t drive Business US 31 to Business US 24 anyway, so we took a side street. At any rate, Business US 31 turns right onto Business US 24 and stays there for several blocks. The two split again on the west side of town, where Business US 31 heads south. Here’s a northbound photo from Business US 31 of the intersection.

The road led directly to a triple-span steel truss bridge crossing the Wabash River.

This map shows this portion of Old US 31 and this bridge.

The sun shone brilliantly through the bridge’s beams and trusses.

This unusual Business US 31 shield awaited on the guardrail after we crossed the bridge.

Brian, whose curiosity about old alignments was growing, wondered where the previous bridge might have been, and went off to search for clues. Unfortunately, he found very little, but his sleuthing gave me time to take more photos of the bridge, this time northbound.

When I first published this article on my original Roads site, the Miami County Engineer found it and sent me some scans of documents from when this bridge was built, which was in 1939. This excerpt shows the location of the previous bridge. If you scroll up to the previous map excerpt, the old road ran along the line of trees just west of the 1939 bridge. The old road north of the Wabash River is Kelly Street.

He also sent this excerpt from the documentation that shows a drawing of the previous bridge. It, too, had three spans, but they were Pratt trusses rather than the current bridge’s Parker trusses. It looks like it also had a wood floor!

The Miami County Engineer also sent me an excerpt from this 1935 map showing Old US 31’s original alignment south of the bridge. It followed what is now Airport Road as it curves to become Plothow Road. It’s not clear to me when the newer alignment was built.

Here’s where the later alignment ends at current US 31.

From here, US 31 follows its original corridor all the way to Kokomo. Somewhat reluctantly, we returned to the big slab. But we’d see a few snippets of an older US 31 roadway immediately to the east of the four lane highway.
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