I said I was going to start including post-1969 pre-1980 endpoints in pages as I got around to them, and fortunately, the biggest cluster of such points is in easy driving distance.
All of the Benton County spurs except IA 82 and 201 had their endpoints changed in the Great Decommissioning. All but IA 199 and 201 had a different endpoint at original commissioning; my copies of Highway Commission minutes from 1936 dovetailed with the route descriptions posted online a while ago, enabling me to piece things together. I am just going to note earlier ends, not chase after them, because the other one was usually at the other end of the business district.
Highways with at least one new photo: 82, 198, 199, 200, 201, 279, 287.
The history for IA 363 in Urbana was a little more complicated. (Did I need to make a map, I asked myself? Why yes, I do need to make a map!) That page also needed and got photos of the generic interchange signing at I-380.
Just over the border in Linn County, I added photos for the new end of IA 100 and photos at either end of IA 94.
I didn’t get around Iowa much this year, but these additions show at least some work. Some of the pictures were taken during that long period in May when the sun didn’t come out. I thought I could take advantage of that for the directions signs would usually be in bad light. (That backfired marvelously.)