Modeling Monday: The Middletown Scene - Airline Bridge over Route 9

Continuing in Middletown, as promised last time, here's how I did the Airline Bridge over Route 9. 

Always start with a prototype photo, if you can. Fortunately, I drive under this bridge every day during my commute to Hartford so reference photos are easy to get :^)

I started with a standard Micro-Engineering through plate girder bridge kit, built according to the instructions.

But I discovered quickly that I was going to have to try and "skew" the bridge in order to follow the Airline's track alignment over Route 9.  Thankfully, the bridge was long enough that I could afford to trim back a bit. Here it is mocked in place to start figuring the proper angles.

I eyeballed it in the proper alignment with the track centerline and then marked the cutting lines with a ruler.

Then used my bandsaw to cut it to the proper angle.

The bridge rested on the west end abutment fine - next I needed to figure out the east abutment.

In order for it to actually rest on the layout, the east abutment had to come in a bit closer - which required another trip to the bandsaw to cut the bridge down further.

Once it fit nicely between the abutments, I leveled it out using pieces of styrene as shims/bridge shoes.

And, of course, the bridge track required trimming too.

Once the track was installed, I weathered the bridge using Rustoleum Camo Brown paint & Bragdon powders.

Next up - doing the somewhat distinctive (or at least not at all standard or symmetrical) wing walls at the west abutment. I took the angles directly off of the prototype photo as you see above.

I made templates for the wing walls out of scrap foam core, which is much cheaper and easier to work with than styrene. Trim & fit to your heart's desire before committing to styrene.

And here are the foam core templates mocked up in place to compare to the prototype photo.

Once I was happy with how they looked, I used them as cutting templates to cut and trim the .060" sheet styrene. I used strip styrene to make the "cap"(?) on top of the walls. By the way, thanks to Bruce Wilson for convincing me to get this Ultimation sander - it's a super helpful tool, especially for this sort of work!

I painted the walls a base of Sky Grey (Tamiya XF-19)...

... and got some AK "Concrete" to try out for some concrete texture. Plain styrene certainly needs texture in order to look like concrete and this AK product - brushed on according to the instructions - does a great job.

Initially, it may come out looking a bit too coarse or larger than scale (left), but you can keep working it and even sand it down a bit if you like (right).

But there's no denying that the texture makes all the difference... as you'll see below...

Hopefully you'll agree that these "finish" photos compare pretty favorably to the prototype pics earlier in this post. I'm pretty happy with how they came out.

You may have noticed some timeline inconsistency in these photos though - we haven't yet covered (figuratively or literally) the terrain in the vicinity of Route 9 (despite what you see above :^) so that'll be next!