Duluth & Northern Minnesota 2-8-2 "Mikado" Locomotives in the USA

The Duluth & Northern Minnesota was a logging railroad based in Knife River, MN. The railroad was no longer viable in 1919 and it was abandoned. Among the steam locomotive it owned was a Baldwin-built 2-8-2, which was its number 14. The locomotive was bought by and used on the Lake Superior & Ishpeming Railroad. Number 14 was brought to Minnesota and was restored in 1992 to run excursions on the North Shore Scenic Railroad. It was withdrawn from service in October 1998 and is now in storage serviceable at the Lake Superior Transportation Museum in Duluth, MN.


Qty.Road NumbersYear BuiltBuilder

Class Details by Steve Llanso of Sweat House Media

Class 13 (Locobase 13024)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 48, p. 235. Baldwin works numbers were 39664-39665 in April 1913.

These Mikados were the newest iron (well, mostly steel) on the D&NM and had many years left on the meter when the D&NM was sold in 1921. Both went over to the Lake Superior & Ishpeming as their 15, 14 in class Mk-1. In March 1959, the 14 was sold to the Inland Steel Company.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID13024
RailroadDuluth & Northern Minnesota
Number in Class2
Road Numbers13-14 / 21-22
Number Built2
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)14 / 4.27
Engine Wheelbase (ft / m)28.42 / 8.66
Ratio of driving wheelbase to overall engine wheelbase 0.49
Overall Wheelbase (engine & tender) (ft / m)57.33 / 17.47
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)137,000 / 62,142
Engine Weight (lbs / kg)178,000 / 80,740
Tender Loaded Weight (lbs / kg)115,000 / 52,163
Total Engine and Tender Weight (lbs / kg)293,000 / 132,903
Tender Water Capacity (gals / ML)6000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)10 / 9
Minimum weight of rail (calculated) (lb/yd / kg/m)57 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)20" x 28" / 508x711
Tractive Effort (lbs / kg)37,333 / 16933.98
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.67
Heating Ability
Tubes (number - dia) (in / mm)350 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)17.25 / 5.26
Firebox Area (sq ft / m2)153 / 14.22
Grate Area (sq ft / m2)41.30 / 3.84
Evaporative Heating Surface (sq ft / m2)3299 / 306.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)3299 / 306.60
Evaporative Heating Surface/Cylinder Volume324.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation8260
Same as above plus superheater percentage8260
Same as above but substitute firebox area for grate area30,600
Power L16787
Power MT436.87

  • 14 (in excursion service)
  • 14 (stored)
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