Tom Johnson’s Cass County Railroad is rooted firmly in the upheaval of the mid-1970s. The creation of Conrail in 1976 led to widespread rationalisation, with lightly used or unprofitable branches either abandoned or sold. In their place came a generation of short line operators, often built around a single customer or a small cluster of industries.
The Cass County Railroad sits comfortably within this landscape. Set in 1978, it represents a modest shortline working former Pennsylvania Railroad trackage around Logansport, Indiana. While freelance, the concept is entirely believable, drawing on the real pattern of agricultural traffic that sustained many of these lines.
Scope and Selective Compression
A defining feature of the layout is its restraint. Tom Johnson has chosen to model only a small part of a larger system, focusing on a single town and its immediate surroundings.
Connections to the wider railroad, including routes towards Kewanna and Mexico, Indiana, are suggested rather than shown. This approach allows the layout to remain compact while still implying a broader operational context. It is a clear example of selective compression used not just to save space, but to sharpen the focus of the model.
Track Plan and Baseboard Design
The layout is arranged as a U-shape around three walls of a spare bedroom, with shelves approximately 16 inches deep. The room itself measures just 11ft 4in by 10ft, reinforcing the compact, space-conscious nature of the design.
Construction is deliberately straightforward, using timber framing and plywood tops supported on wall-mounted battens and brackets.
There is nothing elaborate in the baseboard design, and that simplicity is intentional. By keeping the structure robust and uncomplicated, Tom Johnson has created a reliable foundation that allows attention to be directed towards operation and scenery rather than construction.
The track plan follows a continuous run folded into a U-shaped shelf, with a single staging track representing connections beyond the modelled area. Although a continuous loop is physically present, the railroad is operated as a point-to-point system, with trains entering and leaving via staging to represent interchange with Conrail and other regional lines.
The layout follows a “one town” concept, where depth of operation is created through the interaction of a few well-chosen industries rather than a wide geographic spread.
The track plan has continued to evolve over time, with later revisions placing greater emphasis on staging. An extended staging track now runs beyond the visible layout, allowing trains to enter and leave the scene in a more realistic manner. This addition has significantly improved operation, effectively turning the layout into a true point-to-point railroad despite its compact footprint.
Staging is accessed from outside the main room, with trains assembled and adjusted off-scene. This separation between the modelled area and the wider “world” of the railroad strengthens the illusion that trains are arriving from, and departing to, locations beyond the layout itself.
Operation and Traffic
Operation on the Cass County Railroad reflects the realities of a small late-1970s short line. A Conrail local provides the connection to the outside world, setting out and collecting interchange traffic.
From there, the Cass County Railroad’s own locomotive works the various spurs, serving grain elevators, a fertiliser facility, and other local industries. Traffic is modest but purposeful, consisting largely of covered hoppers and boxcars handling agricultural products such as corn, soybeans, seed, feed, and bagged fertiliser.
Recent refinements to the operating concept have introduced a stronger emphasis on push movements, reflecting both the prototype track arrangements in Logansport and the practical realities of a one-town layout. Rather than relying solely on traditional pull-and-run movements, cars are frequently propelled into spurs and industrial tracks, creating more varied and deliberate switching sequences.
This approach aligns closely with real short line practice, where restricted clearances, tight track layouts, and limited run-round opportunities often dictated how trains were worked. On the model, it adds both operational challenge and visual interest, reinforcing the sense that this is a working railroad rather than a simple display.
The layout centres on the Cass County Farm Bureau Co-op, which is modelled as a series of related facilities, including grain handling, feed, and fertiliser. This creates a range of switching moves within a compact space, allowing varied operation without the need for numerous separate industries.
Supporting industries such as Master Mix Feeds and smaller town businesses provide additional traffic, but remain secondary to the agricultural focus. This keeps the operation coherent, with most movements tied to a clear purpose.
Earlier covered hoppers were often effectively captive to specific elevators, a detail that helps inform wagon selection and movement on the layout.
The introduction of off-scene staging has transformed the way the layout operates. Rather than simply circulating trains, movements now have a clear origin and destination, with traffic appearing from staging, being worked locally, and then departing again. This gives even short operating sessions a stronger sense of purpose.
Staging is handled from behind the layout, with the operator standing inside a closet and working the rear of the staging tracks. Trains are removed from one end and reformed at the other, creating a simple but effective flow of traffic. This arrangement allows the visible layout to remain uncluttered, while still maintaining a connection to a wider railway network beyond the modelled scene.
Scenic Techniques
The scenic approach on Cass County Railroad is driven by speed, layering, and a clear understanding of what will actually be seen.
Tom Johnson does not begin with a traditional painted base. Instead, static grass mats from Heki and Scenic Express are applied directly to the plywood using wood glue. At a layout height of around 60 inches, the base surface is never visible, making a painted undercoat unnecessary. This is a deliberate choice that prioritises efficiency without compromising the final appearance.
From there, the scenery is built up in layers. Fine dirt and earth-toned turf are brushed into the surface of the grass mats, working down through the fibres to reach the glue below. This is followed by a heavy application of hairspray, which acts as a fixing agent for additional textures.
These upper layers include a mix of fine turf, flowers, loose static fibres, and leaf materials such as Scenic Express Superleaf. Bushes and low growth are added using ready-made materials, including products from Martin Welberg. The emphasis is on variation rather than uniform coverage, with different textures blended together to avoid repetition.
The result is ground cover that feels dense and natural, without the need for a static grass applicator. The use of pre-made mats allows large areas to be covered quickly, while the layered textures prevent the surface from appearing flat or artificial.
Fallen leaves are placed with similar care, tending to collect beneath trees and along verges rather than being spread evenly across roads or open areas, reflecting how they are moved by traffic and wind.
Season also plays a part in the overall look. The layout represents mid-October, and this is reflected in the dominance of leafy growth rather than fresh green grass. This subtle shift in colour and texture helps to define the time of year and gives the scenery a slightly heavier, more settled appearance.
Trackside treatment follows a similar philosophy. Ballast is made from fine sand, blended from real material and commercial sources to achieve variation in tone. Weeds between the sleepers are represented using fine turf, applied directly into glue and then vacuumed back once set. The effect is restrained but convincing, avoiding the overgrown look that can easily creep into this area.
What stands out in all of this is the balance between speed and control. Large areas can be covered quickly using grass mats, but the final appearance is determined by the careful addition of layered textures. It is a pragmatic approach that produces consistent results without becoming labour-intensive.
Tree treatment follows the same layered and observational approach. Ready-made trees from Scenic Express are used alongside other materials, with individual specimens modified to improve their appearance. Additional branches are added from spare trees, and foliage is adjusted using oil paints.
Colour is applied with reference to real seasonal change. Leaves are not uniformly treated, but vary from top to bottom and from the outer edges inward, reflecting how fall colour develops in nature. Green tones are often retained in the lower portions, with more advanced colour change higher up and towards the canopy edges.
Fall colour is handled with restraint. While real trees can display vivid yellows and reds, these are used selectively, with most tones kept slightly subdued to avoid an artificial appearance. Brighter colours are introduced in patches to provide contrast, rather than being applied uniformly across the scene.
Variation is also important. Not all trees are shown in full fall colour, with some retaining green foliage to reflect the natural mix seen in the landscape. This balance prevents the scene from becoming visually overwhelming and helps maintain realism.
Trees are also integrated into the scene rather than placed individually. Additional foliage is worked in between trunks and at ground level, helping to form continuous masses of vegetation rather than isolated models.
Foliage is further refined using oil paints to unify tones across trees and low-level growth. This blending step helps tie individual scenic elements together, avoiding the patchwork effect that can occur when using multiple commercial products. The aim is not simply to add colour, but to control it as part of the overall composition.
Particular attention is given to the transition between modelled scenery and the backdrop. Additional low-level growth is worked along the base of the backscene, while tree masses are extended into it, helping to visually merge the two. This softens the boundary between foreground and background and reinforces the illusion of depth.
Structures are generally built on Masonite (hardboard) bases and installed as complete scenic units. While they are effectively permanent in normal use, they can be removed if required by soaking the surrounding area and carefully lifting the entire section. This allows scenes to be replaced or reworked without major disruption to the rest of the layout, providing a degree of flexibility within an otherwise fixed design.
Atmosphere
The layout captures the character of small-town northern Indiana with a light but effective touch. Structures such as local businesses and roadside scenes are modelled with care, but without unnecessary complexity.
Key industries, such as the Farm Bureau Co-op elevator, are kitbashed from multiple commercial kits, allowing larger and more individual structures to be created without resorting to full scratchbuilding.
Figures and details are used sparingly, allowing individual scenes to breathe. There is no sense of overcrowding, and the viewer is given space to take in each scene.
The overall effect is one of quiet realism, with the emphasis placed on everyday life rather than spectacle. It feels observed rather than constructed, which is a large part of its success.
The late-1970s setting is reinforced by the condition of the rolling stock, with weathering evident but without the heavy graffiti that would dominate later decades.
Design Philosophy
Tom Johnson has long favoured narrow shelf layouts with simple track plans, and the Cass County Railroad is a direct expression of that approach.
By limiting the scope of the layout, it becomes possible to complete the scenery relatively quickly and focus on refinement. The result is a layout that feels finished and coherent, rather than one that is constantly being expanded or reworked.
This focus extends into operation, where movements are designed to reflect the constraints of the prototype rather than convenience. The increasing use of push-based switching is a natural outcome of this thinking, favouring realism and operational discipline over simplicity.
Lighting and Presentation
Lighting plays a significant role in the overall impression of the Cass County Railroad. Rather than relying on even, diffused illumination, Tom Johnson has experimented with more directional lighting to replicate the effect of natural sunlight.
Photographs of the layout taken using a single LED ceiling light show strong, well-defined shadows, suggesting low sun and late afternoon conditions. This approach creates contrast and depth, helping to emphasise the three-dimensional quality of the scenery and structures. The result is noticeably different from the flatter appearance often produced by multiple light sources.
The lighting itself is relatively simple. Tom Johnson uses LED units rated at around 4100 lumens, with multiple fittings available when needed. By selectively reducing the number of active light sources, it becomes possible to control the mood of the scene without complex equipment or staging.
The backdrop also plays a part in this effect. While a painted cloudy sky is used on the layout, photographic skies are sometimes introduced for images, a technique that is becoming increasingly common among modellers seeking greater realism. This helps to reinforce the illusion of depth and contributes to the overall realism of the scene.
Depth is further enhanced through the use of forced perspective. Structures in the background are reduced in scale or positioned to appear more distant, with elements such as trees placed in front of the backdrop to push features further away visually. In one instance, a church scene is set back using a combination of reduced apparent size and partial screening by foreground trees, reinforcing the illusion of distance.
Additional cues are introduced through vertical elements such as telegraph or power poles. These are deliberately scaled and positioned to exaggerate perspective, subtly drawing the eye into the scene and increasing the perceived depth of what is, in reality, a very shallow space.
Taken together, these choices show a clear understanding that presentation is not just about modelling, but about how the model is seen. Light, shadow, and background all work together to define the atmosphere of the layout.
From the viewing side, staging is completely concealed behind fascia and scenic treatment, preserving the illusion that trains are arriving from and departing to distant locations.
Locomotives and Identity
The locomotive fleet on the Cass County Railroad reflects the realities of late-1970s short line operation, with second-hand power forming the backbone of the roster.
Tom Johnson’s principal road locomotive is Alco RS3 No. 30, supported by a small fleet that includes a GP7 and an Alco C420. These locomotives rotate on and off the layout, reflecting the limited but varied power typical of a small short line. Together, they form a practical, workmanlike fleet of four-axle road switchers suited to both branch line running and local switching duties.
Rather than relying on an off-the-shelf identity, Tom Johnson has established a distinct and believable look for the railroad’s locomotives. The RS3, built from a Bowser model, has been repainted and weathered to avoid any direct association with Missouri Pacific. While some RS3s did survive into short line service, many Mopac examples were rebuilt into GP12s, making an unmodified version in original colours less convincing for the period.
The finish is deliberately subdued. A faded red upper body and red-and-white nose striping replace any original scheme, while the underframe, fuel tank, and trucks are finished in black. The paint has been blended using dry brushing with oils, creating a worn, dusty appearance that sits naturally within the late-1970s setting.
Detailing is restrained but effective. Additions such as coupler lift bar extensions, brake chain, and small crew items like brooms help lift the model beyond its ready-to-run origins without overcomplicating it. The result is a locomotive that feels used rather than embellished.
Performance and sound are given equal attention. The RS3 is fitted with a LokSound V5 decoder paired with a Scale Sound Systems speaker, producing a deep, well-balanced Alco exhaust note. This combination gives the model a convincing presence in operation, avoiding the thin or overly sharp sound often associated with smaller speakers.
The C420 represents a slightly newer layer within the fleet and carries a weathered Conrail blue finish. This is based on a specific prototype detail, with one example, No. 2072, noted as having received Conrail blue. Retaining this livery reinforces the second-hand nature of the fleet, suggesting a locomotive acquired directly from a larger system with minimal alteration.
Taken together, the fleet avoids uniformity in favour of credibility. Each locomotive appears to have come from a different source, yet all sit comfortably within the same operating context, reinforcing the impression of a small railroad assembling whatever serviceable power it can obtain.
| Reporting Mark | No. | Class | Livery | Model | Seen |
|---|---|---|---|---|---|
| CCRR | 30 | ALCO RS-3 | Blue | Bowser | |
| CCRR | 2070 | ALCO C420 | Conrail Blue | Atlas? | |
| CCRR | 2072 |
Freight Cars
| Reporting Mark | Number | Road/Company | Colour | Prototype | Model | Seen | N Scale |
|---|---|---|---|---|---|---|---|
| ACL | 120284 | ACL | Delivery Beige | Pullman-Standard 2929 Covered Hopper | Tangent 35160-09 | ||
| ATSF | 301512 | SantaFe | Box Car Red | PS2 Three Bay Covered Hopper | Tangent | ||
| CCRR | 888749 | Cass County | Penn Central Green | PS-2CD 4785 | Scale Trains | ||
| CR | 18196 | Conrail | Blue | Transfer Caboose | Bluford Shops 34011 | ||
| CR | 886965 | Conrail | Brown | PS-2 4785 Covered Hopper | Scale Trains SXT31036 | ||
| CR | 889093 | Conrail | Brown | PS-2 4785 Covered Hopper | |||
| CR | 889653 | Conrail | Brown | PS-2 4785 Covered Hopper | |||
| TLCX | 30073 | White | |||||
| TLDX | 6846 | Illinois Grain Corporation | Yellow | PS2 Three Bay Covered Hopper | Proto 2000 | – |
Lessons for Modellers
The strength of the Cass County Railroad lies in its clarity. Every element serves a purpose, from the industries chosen to the traffic they generate.
It demonstrates that a successful layout does not need to be large or complex. A well-defined concept, a restrained track plan, and a clear understanding of operation can produce something far more convincing than a more ambitious but unfocused design.