All posts by bsullivan

Layout Design: The Georgetown Branch, 3.0

Last gasp. A 360 degree view of the layout prior to demolition

Picking up from my previous blog post which caught you up to date on where I am and have been, I want to share some of my thoughts as I approach redesigning the layout. This will be a long post, so get a cup of coffee and settle in.

Version 1

I originally conceived the Georgetown Branch (GB) layout back in the early 2000s when I was getting back into the hobby and leaning hard into the prototype modeling world. At the time, my interest in the GB had just bloomed and I decided that would be my next model railroad focus. I got a copy of CadRail 7 from a friend and set about learning how to use it. It’s got a bit of a steep learning curve, but I managed. Here’s what version 1 looked like:

Upper deck design with the Junction to the right, Chevy Chase near the HVAC, Bethesda at the bottom.
Lower deck; track exits helix at Dalecarlia, C&O Canal trestle by the HVAC and Georgetown to the right. Note the Glen Echo trolley loop I added for a little bit of flavor.

Eventually my track plan would evolve to include the space to the left of the doorway. The basement space I had was awkward – a semi-finished storage space which included the furnace, water heater, gas meter and electrical panel. I spent a few months gutting and rebuilding the space with new wiring, paint, wall paneling and a drop ceiling.

An awkward area beneath the stairs became the location for the helix, which I built to fit that specific space.

I started working on it in 2003 and by 2007 I had run out of steam. Two kids, a busy work schedule and plenty of other commitments meant that the layout would take a back seat.

Installing splines on the lower deck

At some point, when we realized we wanted to move to a larger house, I disassembled the layout and stored the lumber and salvageable pieces, like the unfinished helix, which I’d reuse on the next layout.

Version 2

Moving to a new house in 2010 meant that I had a new space to explore and plan around. This new space was a similar shape, but I had to design something that included space for a workshop. I decided to split the room in half lengthwise, complete the helix and mount it on wheels to make it moveable. The layout was in a room about 25′ x 6′. The new space needed to be gutted and rebuilt as well. Thankfully, I know a guy who built homes for a living.

Kelly pointing to some of his handiwork.

With Kelly’s assistance, the framing was done in an afternoon. I then set out to insulate the room and lay in electric and drywall.

The track plan consisted of a double deck layout. Staging would be on a shelf outside the room in the workshop area.

Upper level: Trains enter the layout from staging to the Junction at the right. Train proceeds across Rock Creek and into Chevy Chase (top left). Bethesda at bottom. Note multiple lift-out/lift-up bridges.
Lower level: Trains enter from helix now heading clockwise. Dalecarlia at the bottom, C&O Canal to the left and Georgetown at the top and right. Eventually I would add the “long siding” at the left, sliding the C&O Canal bridges to the bottom near Dalecarlia.

In its final incarnation (seen in the header image at the top of this post, it was about 90% of the benchwork, 45% of the track, 45% of the wiring, and about 5% of the scenery was done. You could operate from staging to Bethesda and back again if you wanted, and I even set up a few test ops sessions in JMRI just for fun. Alas, my interest ebbed and flowed as other challenges came and went around me. With the recent divorce, I knew it was an opportunity for change, so I didn’t look back. The layout was removed on May 31, 2025.

And like that *poof* he’s gone.

Since I’m now at a major inflection point with prime design opportunities, there are many things I have been pondering and considering.

Era

My previous layout was set in the 1945-1955 timeframe. Why? For four reasons.

  1. Georgetown steam switcher: 1945 was end of steam switcher in Georgetown, which I wanted to model. (*note – the Georgetown switcher job was in service from 1910 until the mid 1950s.)
  2. Whitehurst Freeway: The overhead freeway was constructed from 1947-9 in Georgetown, which I did not want to model. (I have since changed my mind; more on that another day.)
  3. Diesels and freight equipment: By extending the era out to 1955 it allowed me to include many first gen Diesels (like GP7’s and GP9’s) and freight cars that I enjoy.
  4. Economics: by having a wider era I would have more opportunities to take advantage of good deals on models when I came across them.

So, with this new opportunity I have the ability to change my tack. I could go drastically off course or keep things steady. Here are the options I have considered so far:

  1. Keep things as-is. Model the ’45-55 timeframe and enjoy the flexibility.
  2. Forward date the layout to a more modern date. Something like 1965, when traffic on the branch was still significant and active. The local no longer ran from Eckington Yard, but rather originated in Georgetown, working the branch from there to the Junction and back again. Single crew, single train. Tighter curves, four-axle power.
  3. Backdate/single date the layout to a specific / earlier time. The 1920s through 1940s are in play. Let’s take 1945 as an example. The Alco S1 diesels appeared in Georgetown in 1945 and steam was still the main motive power for freights. The Whitehurst Fwy. was not yet built. An interesting mix of freight, with older equipment being stretched in service length due to war shortages. DC had yet to experience the postwar construction boom, and yet the city was still growing. Lots of unknowns about what things looked like due to lack of photographic evidence. How about 1948? Whitehurst was half-built. The city and suburbs were in full postwar-bloom. Lots of traffic and interesting equipment. What about something like 1925? All steam, and a need for some unavailable steam models like the D-7 0-6-0. Freight traffic was steady and building during this time with lots of interesting equipment. These options require broader curves for the larger steam locomotives.
  4. Model something else. I have always loved Conrail’s Boston line, which I grew up next to. This would require selling nearly everything I own and acquiring an entirely new roster of equipment, and a ton of new research.
Images such as this one that dates ca 1927 are tempting from a modelers perspective.
National Archives.

Design

Probably the hardest part of a new layout endeavor is the actual track plan. In years past I’ve primarily used pencil and paper to design layout track plans. With the Georgetown Branch v1 and v2 I used CadRail 7, which, unfortunately seems to be out of print now. I’ve thought about using other digital platforms such as FreeCAD, Illustrator or other digital solutions, but I keep coming back to the old pencil and paper. I think, for me, it will be the best way forward. I’m currently at the phase of literally getting ready to sit down and start drawing.

Givens & Druthers

When designing a model railroad it’s great to start by outlining what your constraints are (givens) and what your nice-to-have’s are (druthers). Here are mine:

Givens

  1. The era of the railroad shall be _________ (TBD)
  2. The railroad will depict the Georgetown Branch of the B&O between Georgetown Jct. and Georgetown
  3. Space for a workbench beneath or adjacent to the layout
  4. Space for the paint spray booth beneath or adjacent to the layout
  5. Space beneath the layout will be used for long-term basement storage. Items such as Christmas decorations.
  6. Construction will be a mixture of plywood and dimensional lumber
  7. Aisles will be a minimum of 30″ wide
  8. Operations will focus on two two-person train crews
  9. Operations will focus on prototype ops wherever possible
  10. Lift-outs/downs are acceptable, duck-unders only if at or above head level
  11. Mainline radius will be 36″ for all visible track. Minimum of 32″ elsewhere. Industrial tracks minimum 24″ radius.
  12. Turnouts will be #8 where possible, #6 elsewhere. Industrial trackage can be #5 or higher
  13. Rail weight will be code 70
  14. Structures and visual elements will represent the prototype as much as possible
  15. Light will be provided by LED fixtures.
  16. The layout room will be outfitted with GFCI outlets every six feet or so around the room.
  17. The layout electrical system will be able to be turned off at the wall with switches
  18. Motive power and rolling stock will stay as accurate as possible to the era
  19. ?

Druthers

  1. A speed limit will be enforced (electronically) on the railroad
  2. Handheld DCC control will be with Proto Throttles and/or TCS throttles
  3. The layout can be a single deck, double deck or a combination of the two, depending on the ideal design configuration
  4. The layout will be constructed in a way that gets trains up and running as quickly as possible. Avoid complexity in the layout design.
  5. Maintain “achievable layout” philosophy and standards throughout design and construction.
  6. Occasionally I will run “fun” equipment that is inappropriate for the era/setting
  7. Operations will be dictated by car cards and waybills. JMRI Ops Pro as a fallback.
  8. ?

This is really just a starting point. It’s where my head is now and over time there will surely be additions and adjustments. It’s a good exercise to go through as you design a layout, and a crucial part of the process.

So that’s all for now. I am planning on diving into design over the next week or two, and I hope to share my progress throughout the process.

Changes: Catching Up

A duo of H16-44's traverses the shoofly bridge over Bradley Blvd., (May 1959)
A duo of H16-44’s traverses the shoofly bridge over Bradley Blvd., (May 1959) W. Duvall photo.

Life happens

Astute readers will notice that I haven’t really been active around here for the last year or so. The last time I wrote a blog post was July, 2025. Yikes! I want everyone to know that I am still here, still active in my research and modeling of the Georgetown Branch. But, a lot has happened since last Summer, so let’s catch up a bit and talk a bit about the future.

The spring and summer of 2025 proved to be a challenging time as I went through a divorce which finalized last Fall. Despite the closure of that chapter being a deep inflection point for me in so many ways, it also became a starting point for many other new opportunities, concerns, projects and challenges. It’s a tough space to navigate, and hobbies needed to take a back seat to getting a hold on more prescient tasks and responsibilities. To sum it up, I haven’t really felt up to doing much model railroading with everything else I’ve had going on.

The model railroad

As the dust settled, I wound up keeping the house and decided that I wanted to expand the model railroad now that I had domain over the basement space. I made the [believe it or not] not-so-difficult decision to demolish the model railroad. Yep. Good friend Kelly R. came over and we made short work of it in a very full day of demolition.

At one point Kelly gave me the nickname “heavy duty Ben” due to the fact that I overdid it with the screws when constructing the layout. Ok, maybe I went a little overboard.

We filled up three of those take out containers full of screws.

It was a bit of a bittersweet day, as a lot of heart and soul was poured into that little layout, but I knew that it was never what I wanted it to be and in the long run I would kick myself for not taking advantage of the basement space. Any model railroader will tell you there is a lot of excitement and thrill in considering a new layout.

So, after fourteen years, the layout came down. All of the special items, such as the trestle and the hand laid turnouts in Bethesda and a few other things were preserved, along with most of the lumber, Homasote, track, wire and the many hundreds of fasteners.

Here I am tearing down the helix I built 20 years ago in my old house. Never loved this thing; it had a 19.5″ radius, 3% grade and a few track kinks that I could never fix due to the close clearances. It was originally built to fit below a set of stairs.

So now what? A full 13.5 months have passed since Kelly and I did this demolition. He has visited a few times to help me relocate items in the basement in preparation for demolition of the greater basement; my spray booth, tools, shelves and lots of crates are now stored in this space, as it will be largely untouched during demolition. The rest of the basement is ready for demolition. So why haven’t I started? Well, it’s a big, messy job, requires a lot of coordination to deal with the debris and remember what I said about this time being a “tough space to navigate?” I haven’t really felt like it.

I haven’t been able to figure out a track plan. I have struggled to figure out how to render said track plan. After Kelly visited one day he made a nice CAD drawing of the basement to use as a starting point. (I highlighted the area the old layout occupied to give you an idea of how much additional space I will gain through renovation):

Since I’m at an inflection point with prime design opportunities, there are many things I have been pondering. I’m going to share my detailed thoughts in a follow-up blog post.

Research never sleeps

One thing that hasn’t stopped in the last year is my somewhat passive research on the Branch. Last July I gave my Georgetown Branch presentation to the B&O RR Historical Society at their 2025 Eastern Mini-Con. It was a hit. I was asked to come back this year, but struggled to say yes, since my layout was torn down and life was kind of scrambled. But, I had the idea that perhaps Kelly would want to do a collab, where we focus on the prototype modeling we’ve done. So, I formulated a plan, got Kelly on board and despite him having triple bypass surgery we managed to present at the 2026 Eastern Mini-Con just yesterday. It went really well and I think everyone enjoyed it.

I’ve collected several additional slides, images and other documents over the last year an change that I am gearing up to share here on the blog. I even got to make a special behind the scenes visit to the 3400 Water St. property as it was under renovation this past winter!

Please bear with me as I slowly bring this stuff online to share. I’ve got to make time to go through it and do the proper research which takes some time. I promise, it will be worth the wait! There will be some catching up to do. I am hopeful that I’ll get into a more regular cadence of posting things here, as I truly love the interactions and sharing my findings. This is very much a passion project of mine and I hope you enjoy it as much as I do.

More to come.

Caveat Emptor

February 22, 1958. Car was three months old when photo taken. Noted as a "cement car". Location is 30th St., near "sand and gravel bins" on the map. View is SW.

Sometimes I find things that make me scratch my head, like this recent listing on eBay. At first I thought – oooh, a new image of a covered hopper in Georgetown. But almost immediately realized that this was just a rip off of one of the images I scanned from Mr. Mumford’s collection that was lent to me by H. Smith many years ago. I spoke to Mr. Mumford before he passed and he gave me permission to share the images on my website. While this seller states that they do not sell reproductions, I’m puzzled by the source of this image, as the only other place I have ever seen it is in Mr. Mumford’s photo album which now resides at the B&O RR Historical Society, along with copies of my high-res scans. Just be careful out there. Do your research. You can find a much better, medium res JPG on my Gallery, here. (if you need a higher res version for research purposes, contact me.) πŸ™‚

February 22, 1958. Car was three months old when photo taken. Noted as a “cement car”. Location is 30th St., near “sand and gravel bins” on the map. View is SW. Photo by R. Mumford.

B&O Caboose C2603 I-10 in Georgetown, ca 1967

This magnificent slide came up on eBay a week or so ago and although it was mislabeled as Philadelphia, PA, I immediately recognized it as the new yard in Georgetown, DC. There are a few things that make this image special, first and foremost is the caboose itself. This is no regular B&O I-5 caboose that we typically see on the Branch, no, this is an Ex Buffalo, Rochester & Pittsburg (BR&P) car! The slide listing dates it to 1967 and while the listing is wrong, I think the date is relatively close as it aligns generally with the timeline for this car as I understand it. Maybe someone can ID the vehicles seen in the photo. The repack date on the cab reads “2-27-64”.

Also of note is the B&O class M-26 boxcar peeking out to the left, #26xxxxx.

And, one of the more fascinating things about this caboose is that it’s still in existence today! Yep, hard to believe, and very much a random thing I stumbled on when I was looking for info on this car, but the car currently resides on the Rochester & Genesee Valley RR Museum, lettered as Livonia, Avon & Lakeville No. 2603.

Photo from Rochester & Genesee Valley RR Museum website: https://rgvrrm.org/lal2603/

https://rgvrrm.org/lal2603/

Built by Mt. Vernon Car Co. in 1918 as Buffalo, Rochester & Pittsburgh 252, it was renumbered Baltimore & Ohio C2603 in 1935. It’s primary assignment was to the Riker Rounds Pool. It was sent to DuBois Shops in October 1959 for rebuild, from which it was released in October 1961 with updated cupola windows, toilet, new interior, and Ajax handbrakes. It was assigned to the LeRoy Switcher, before it was reassigned to the Rochester Subdivision Pool in 1963. C2603 was retired in March 1967.

This is all really exciting to me, as it portrays another really interesting piece of rolling stock on the Georgetown Branch – something I had never seen before. I wouldn’t have thought one of these cabs would have made its way all the way down to Georgetown, but here we are! I tried valiantly to secure this slide for the Georgetown Branch collection, but alas it slipped away. A bit too much for a cab roster shot alone. Hope it finds a good home wherever it ends up.

Creeping Through Bethesda, April 19, 1982

Chessie (B&O) GP38 no 3848 makes its way through downtown Bethesda in the Spring of 1982. Photo by unknown. eBay purchase.

The local is slowly crossing Bethesda Ave on a sunny April day as it makes its way West toward Georgetown. Today’s turn has a single boxcar and caboose. The same loco is seen in another photo from four days later, previously posted to the blog! Note the “Radio …” text written within the blue of the Chessie logo on the nose. “Radio Equipped” graffiti, perhaps?

Checking In

Taking a call on the Southern RR steam loco telephone while at the Great Scale Model Train Show last month.

It’s been three months since my last post and a lot has been going on. Between sending my kids off to college, presenting a clinic on the Georgetown Branch at the Mid Atlantic Railway Prototype Modelers meet, a trip to Portugal to watch my daughter compete in the Acrobatic Gymnastics World Championship, prepping for and attending the Great Scale Model Train Show for the weekend as a vendor with my model RR club, presenting a clinic on upgrading Proto2000 GP7/GP9’s for the Potomac Division of the Mid East Region, NMRA, Parents weekend at aforementioned kids’ schools (JMU/Quinnipiac), traveling to New England to visit family for a long weekend, attending a Slowdive concert in Philadelphia and a Brothertiger show in DC, layout ops and open houses and much more…

So, yeah, it’s been hectic. The Georgetown Branch project has taken a back seat this Fall to “life” but fear not, it’s still very much active and moving forward in different ways. I have been talking to Kelly a lot lately as he pushes through with his designs of the Whipple Truss bridge across the C&O Canal. He’s been working on this for the last couple years and recently revamped his approach, integrating steel beams for support due to the wide span. Testing of the fine 3D printed parts continues with promising results. I think he’s close to a final design and will be producing test prints soon. It’s exciting times.

Test fitting bridge parts.
The first iteration at the top, with a carbon fiber center spar. Steel beams at the bottom for reference.
Kelly measuring the deflection on the steel bars across the span with the weight of one loco in the center.

Follow along on Kelly’s Blog.

Regarding the MARPM Georgetown Branch presentation, which hopefully some of you witnessed. Fear not. While that clinic was not recorded, I will be presenting it online for the OpSIG group Virtual Meetup on December 8th, at 7:00pm. It will hopefully be recorded and posted to their YouTube channel afterward for public viewing.

1970 National Christmas Tree in Georgetown

I stumbled on this image on eBay and had to snag it. Yes, I know it’s not great with “A-OK” Paddy taking up most of the frame, but these things are hard to come by so I’ll take what I can get. πŸ™‚ Anyway, this depicts one of the most cursed shipments I’ve ever heard of on the Georgetown Branch.

November 28, 1970. Caption on the back: “Giving the okay sign is C.L. “Paddy” Ingvalson, president of the Keep South Dakota Green Association, who was on hand Friday when the National Christmas Tree was unloaded after a trip from Rapid City, S.D. The closely-guarded train was twice-derailed on the journey. The tree will be erected in the Ellipse, south of the White House. Lighting is scheduled for Dec. 16.”

Since 1954 the National Christmas Tree was shipped via rail from destinations far and wide across America, often arriving in Georgetown to be transloaded by crane to a flatbed truck, driven across DC to the Mall, and erected in front of the White House for the Pageant of Peace. In 1970, a 78′ spruce in Nemo, South Dakota was selected. The tree was felled on Nov 10th and loaded onto a truck for the 22 mile journey to Rapid City, SD. There it was loaded onto Chicago North Western 132577, a 70-ton 65’6″ gondola, to begin its journey to the Nation’s Capital on Nov 16th.

CNW 132577 with the National Christmas Tree, Proviso yard, Chicago, IL. Chicago North Western Historical Society

Unfortunately the train derailed twice along the way. The first was two days after departing Rapid City near the town of Beemer, NE on Wed Nov 18th when the train took a siding and derailed.

Train Derailment Slows Nations Christmas Tree – Fremont Tribune – Fremont, NB – November 18, 1970

The ill-fated train would derail again, this time outside of Pittsburg, PA. It arrived a bit early to DC and had to layover from November 24 to 27 on the US Army Map Agency siding, adjacent to the south entrance of Dalecarlia Tunnel. The train would continue on to Georgetown on November 28, where it would arrive in the yard to be transloaded onto a flatbed truck and head to its final destination, the National Mall, where it would be the centerpiece of the Pageant of Peace.

December 6, 1970. After erection, the tree was blown over by high winds over 50mph. Historic Images photo.
December 7, 1970. The next day, the tree was righted and repaired. Historic Images photo.
December 15, 1970. The lights were tested on the tree. “President Nixon will officially light the tree on 12/16 to open the Pageant of Peace.” Historic Images photo.