Added the largest train room that zoning would allow. Ceiling height is 10′ to nicely accommodate a Mushroom layout with 3′ deck elevation change. Passing sidings are designed to handle a maximum train length of 8′. The two Mushroom levels are connected by an 8′ 6″ long elevator.
Mushroom 3d View
The modeled area is the D&RGW Moffat Mainline from Denver to Grand Junction. Specific locations include North Yard and adjacent Prospect Industrial District, Arvada, Chemical and Rocky on the upper level, and Granby, Kremmling and Grand Junction on the lower level. Most modeled locations follow the prototype when possible. Denver Union Station is represented with 2 platform station tracks high above the aisle between Staging and North Yard. Signature scenes are Byers Canyon and Gore Canyon on the lower level.
Layout design using
Cadrail with input from layout design guru Don Mitchell.
Layout structure uses standard wood framing techniques. Walls are anchored to the floor. Lots of construction help from
Dick Roberts MMR.
Floor Framing Design
Start of floor framing Oct 2016
Raised floor framing
Raised floor framing
Floor framing shear wall
Floor framing shear wall access
North Yard floor framing Nov 2016
North Yard floor joists ready to install.
North Yard floor
Arvada / Chemical floor framing Dec 2016
Levels connected Jan 2017
Arvada / Checmical floor
Aisle 1 Mushroom Supports Mar 2017
First Upper Wall
Upper Walls are in Apr 2017
Full height wall along stairs
Start of Aisle 2 Mushroom Supports
Start of Staging install. Staging was saved from last layout.
Staging done May 2017
Temporary DCC install
Staging lives! May 2017
Aisle 2 Mushroom Supports
Arvada / Chemical Mushroom Support Joists
Adding Shear Panels to Aisle 1 Nov 2017
Adding Shear Panels to Aisle 2
More Aisle 2 Shear Panels
Starting to Dress Up the Future Dispatcher’s Office
Entry Doors with Logo Jan 2018
Rocky Plywood Base
Zuni / Arvada Plywood Base
Access Hatch in Prospect Industrial District May 2018
Denver Union Station, North Yard and Prospect Industrial District are built on 3/4″ plywood covered with cork. The remainder of the layout is built on 1/4″ plywood topped with 2″ foam. DCC layout control using
Digitrax and JMRI. Turnout, Signal and Detection control using the Tam Valley Depot QuadLN_S product family designed by Robin Becker, PhD and Duncan McRee, PhD.
Yampa Valley Mail at Denver Union Station Mar 2018
Denver Union Station. Platforms Built by Dick Roberts MMR
CSDPU at Fox Jct May 2018
Staging Filling Up with Coal July 2018
DUS Wiring Mar 2019
Fox Jct Mar 2019
Heading West Towards North Yard
North Yard Crossover
Fox Jct OS
Fox Jct Closeup. QuadLN_S with Detector and Signal Boards May 2019. For more on the QuadLN click here: Electronics and Software
Denver Union Station West OS
Denver Union Station East OS
Westbound Zephyr leaving Denver
Each power district has a Tam Valley Depot CFJ circuit breaker. There are DCC Ammeters on each district plus one for total command station output. For more info about the ammeter click here: Electronics and Software
F units pass the Utah Jct water tank. To go to the project page for the tank, click here: Utah Jct Water Tank
I designed and assembled these N scale searchlight signal circuit boards to use as fascia-mounted stand-ins for future trackside signals.
Searchlight masts driven by QuadLN_S Signal Board to show the LED colors. To go to the Signals project page click here: N Scale Searchlight Signals
North Yard body tracks going in March 2020. The aluminum bar stock spacers helped keep things straight.
North Yard body tracks complete April 2020
North Yard service tracks complete May 2020
Servos for North Yard east end installed and frog power wired. One QuadLN_S is running 13 servos and the other is running 16 servos: the first test of the new QuadLN_S 16 servo mode!
North Yard TOFC track and Auto tracks installed Nov 2020.
Bowman Biscuit in place adjacent to North Yard December 2020. To go to the Bowman project page click here: Bowman Biscuit (Keebler)
Bowman Front Office, Dec ember 2020.
Daniel Smith (email@example.com) in Australia 3-D printed these sand towers. They look perfect astride the North Yard engine service tracks. Mar 2021
If I had been there back in those days it would have been fun to play a few tunes outside Bowman Biscuit and maybe get some great cookies as tips. May 2021
After struggling to fit in a more prototype version of Utah Jct, I turned to my friend and layout design guru Don Mitchell for suggestions. He came up with this “Full Mitchell” trackplan that uses 2 double-slips and a second crossing to make it fit. Required a change to Peco C55 track for Utah Jct and 7 transitions between Atlas and Peco! Westbound CSDPU empties hold the crossing May 2021.
Cargill Elevator – another Dick Roberts masterpiece! The size is approximately 60% of full scale. March 2022
East end of Cargill. Look closely and you will see a safety chain. No surprise, Dick was a safey expert for Cal OSHA after all!
Closeup of some of the many details added by Dick.
North Yard bookends. Cargill in the foreground and Bowman Biscuit in the distance. Both created by Dick Roberts, MMR.
North Yard west end servos. May 2022
Utah Jct servos and detectors. May 2022
Belt Job crossing Utah Jct, passing the D&SL water tower and heading towards staging. Yes those hoppers should be loaded, but doesn’t the internal bracing built by Dick Roberts look good? May 2022
Started backdrop installation with this coved corner. Reusing 28″ tall valley roll flashing that was used for the backdrop on the last layout.
Installed remaining backdrop from the last layout. There is no longer a view of the staging yard from the upper level!