I've already posted about the overpass. Here's an updated photo with the overpass painted Floquil concrete lightened up a bit with reefer white. I still need to add road lines. Using a mirror means I will not be able to put any vehicles on the overpass.
I also put a wheat field in an empty are between Rochelle and Global III. Corn fields are much more prevalent here in northern Illinois than wheat fields, but I find corn fields impossible to do convincingly so I plan to regulate corn fields to photo backdrops. For the wheat field, I first filled in the area with additional plaster and leveled it off. I added one more thin layer of plaster and used the teeth of a broken keyhole saw blade to simulate furrows in the soil for about a third of the field. After painting the plaster with dirt brown latex paint, I added Woodland Scenics harvest gold static grass to simulate the unharvested wheat.
A new project I just started is the Proviso yard office. Using pictures of the prototype office, I scratch-built the office using .030 styrene laminated with JTT brick sheet. The structure also uses Grant Line windows and and doors. I will be working on the parking lot next and then details.
I did something different for the roof. As you can see from the satellite photo of the building, the roof uses a white plastic roofing material that has seams.
I tried to simulate this by using a black ball point pen to draw the seam lines and then airbrushed the roof a very, very light grey color so that the seam lines still showed through. Probably should have used a darker grey, but I think it turned out pretty good. I may add some weathering to darken it up a bit.
I also added the smaller BLMA yard office next to the yard tower. I'll post later about the building in the background later.