Interlocking
Module Name:
Interlocking
Diorama:
Downtown Tulsa -- includes Tulsa Interlocking, Depot and Railway Express
Owner Name:
NEONS
Sponsor:
Fearless Leader
Date Built:
2008
Date Updated:
In Progress
Status:
Active
Module Type:
8' standard module
Length:
8'
Width:
2'
Skyboard:
12" laminated
Track
Code:
80
Brand:
Atlas
Turnouts:
various Peco
Crossovers:
red to yellow (cw & ccw), yellow to blue (cw & ccw)
Passing Sidings:
none
Yard Tracks
yes
Industrial Spurs
yes
Other Tracks
yes
Electrical:
Wire
Connector
110V
Designer:
Fearless Leader & Pert
 
Red
12 gauge
PP-30
 
Carpentry:
Rambo
 
Yellow
12 gauge
PP-30
 
Track:
Pyro & Pert
 
Blue
12 gauge
PP-30
 
Wiring:
Pyro
 
Other
   
Yes
Scenery:
Fearless Leader
DCC Equipment:
UP-5
Powered Accessories:
Wall wart for UP-5
Scenery:
Oklahoma Scene:
Route 66 Scene:
 
Prototype RR:
Lenard
Track Plan
Interlocking
Sign Board
Tulsa Interlocking -- Yes, this terrible tangle of tracks really did exist! The Tulsa interlocking plant was the crossing of four of Tulsa's railroads, the Frisco, MKT, Midland Valley and Santa Fe. It allowed three of these railroads entrance to the Tulsa Union Depot, which was west of the interlocking. Midland Valley only crossed here and did not access the Tulsa Union Depot trackage. The Santa Fe yard was where the camera is standing and the Santa Fe freight depot was just beyond this module's skyboard.
Description & History
The NEONS (North East Oklahoma N-Scalers) nearly finished with a multi-year project to rebuild, update and authenticate our twenty-year-old diorama depicting the railroad tracks running across the north side of downtown Tulsa, Oklahoma. Part of the original diorama was featured in the May/June 2003 issue of N-Scale Railroading Magazine.

The re-work project was to transfer five 4'modules to three 8' modules, adding a 4' portion that was omitted before. New features are the Denver Street underpass and the de-compression of some tracks into the formerly missing 4' stretch. By modifying these modules from 4'ers to 8'ers, we eliminated a large number of connector tracks which has resulted in easier setup and smoother running. This 3-year project was completed in stages, with the track work, wiring and ballasting completed first, then the buildings were transferred to the new modules with some being rebuilt to better match their prototype, and finally, the remaining scenery was completed.

This historically accurate, 24' diorama depicts the north side of downtown Tulsa, Oklahoma circa 1957. Included on the modules from left to right (East to West) are the Tulsa interlocking where tracks from four railroads all crossed and inter-connected, the Frisco Freight building, the 1930's art deco Tulsa Union Depot with the Main Street overpass, the Railway Express Agency facilities, and the Denver underpass. You are looking south and downtown Tulsa sky-scrapers like the National Bank of Tulsa and Philtower (the office building Waite Phillips of Phillips 66 Oil Company gave to the Boy Scouts of America) would be just behind the skyboard of these modules.

Old photographs from the archives of the Tulsa World and Tulsa Tribune (the local morning and afternoon newspapers) were utilized along with numerous photos from private files to determine how the north side of downtown Tulsa appeared during this time frame. Sanborn maps and old documents from the Frisco railroad archives provided details on track geometry.
Industry Details:
Industry
Access Track
Switch Direction
Car Types
Spur Capacity