2-8-4 "Berkshire" Type Locomotives

The development of the 2-8-4 wheel arrangement for steam locomotives was a result of an effort by the Lima Locomotive Works to improve on the speed and horse power of the USRA Mikado (2-8-2) locomotive, which was designed by the United States Railroad Administration during World War I. The USRA design had difficulty keeping up steam over long periods and often experienced wheel slippage.

Lima Locomotive Works' engineer William E. Woodward started with a New York Central Class H-7 "Mikado" type locomotive and added a larger firebox, creating an experimental Class H-10 "Mikado". He then went one step further and designed a locomotive with a 100 square foot firebox. This larger firebox required a four-wheel trailing truck to support it. The resulting locomotive was designated Class A-1, and it was the first 2-8-4.

This new 2-8-4 locomotive was sent to the Boston & Albany Railroad by Lima in the early spring of 1925 for tests on that railroad. In several test runs over a division of the railroad that crossed the Berkshire Hills, the demonstration locomotive, which carried road number "1" hauled up to 2500 tons. The most dramatic test occurred on April 14, 1925. A Class H-10, 2-8-2 "Mikado" type steamed eastbound from the Selkirk Yard pulling a 46 car, 1691 ton, train. About 47 minutes later the Class A-1 demonstrator led a 54 car, 2296 ton, in the same direction. The demonstrator Class A-1 arrived at North Adams Junction ten minutes ahead of the Class H-10. Soon after these impressive tests, the Boston & Albany ordered forty-five of these new locomotives. Being the first railroad to use this new wheel arrangement the B&A chose to call them "Berkshire" type.

Lima put its Class A-1 demonstrator on the road and sent it across the country to sell this new class of locomotive. Wherever it went the Class A-1 established new records. This locomotive was later shipped to the Illinois Central Railroad as part of its order for fifty "Berkshires" and became Illinois Central road number 7049.

After its debut in 1925, the "Berkshire" type locomotive continued to be improved by locomotive builders and the various railroads that used them. These heavy-duty main line locomotives were used by many railroads. Notably among them were the Boston & Albany Railroad, the Chesapeake & Ohio, the Erie Railroad, the Illinois Central Railroad, the Nickel Plate Road and the Pere Marquette Railroad.

Twenty of the "Berkshire" type locomotives exist today: 2 from the Pere Marquette, 6 from the Nickel Plate Road and 12 of the C & O's 2-8-4 locomotives, which they called "Kanawhas".

There are also two tenders that were used on "Berkshire" type locomotives that have survived. They are both from the L&N. One was the tender from L&N number 1966 and it is now at the Southern Railway Museum in Duluth, GA and the other is the tender from L&N number 1985 and it is now at the Kentucky Railway Museum in New Haven, KY.

Information for this introduction to Berkshires provided by Richard Duley.

Builders of 2-8-4 "Berkshire" Type Locomotives (by Richard Duley)

Number of Locomotives by Builder
RailroadALCOBaldwinLimaOtherFrom Other Railroads
Atchison, Topeka & Santa Fe15 7 B&M
Boston & Albany55
Boston & Maine25
Chesapeake & Ohio7020
Chicago & North Western12
Detroit, Toledo & Ironton6
Erie253545
Illinois Central51
International - Great Northern5
Louisville & Nashville2022
Missouri Pacific25
New York, Chicago & St. Louis1565
Norfolk Southern5
Pere Marquette39
Pittsburgh & Lake Erie7
Richmond, Fredericksburg & Potomac10
Toronto, Hamilton & Buffalo2
Virginian5
Wheeling & Lake Erie32
Totals:16875368


Number of 2-8-4 "Berkshire" Type Locomotives Built by Year (by Richard Duley)

Year
Railroad192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949Total
AT&SF1515
B&A31141055
B&M20525
C&O1426104090
CNW1212
DT&I426
Erie503520105
IC5151
InternationalGN55
L&N1462242
MoPac2525
NYC&St.L151510301080
NS55
PereMarquette15121239
P&LE77
RF&P1010
TH&B22
Virginian55
W&LE102371032
Total8291622535154252551939347410540732611

A Comparison of Famous Berkshires and Kanawhas

 NKP (S-2)
(Lima)
PM (N)
(Lima)
C&O (K-4)
(ALCO)
Wheel Arrangement2-8-42-8-42-8-4
Length101'100'-8"105'-2"
Drivers69" dia.69" dia.69" dia.
Weight on Drivers264,300 lbs278,000 lbs292,000 lbs
Total Locomotive Weight440,800 lbs436,500 lbs460,000 lbs
Locomotive & Tender Weight802,500 lbs794,500 lbs850,000 lbs
Grate Area90.3 sq ft90.3 sq ft90.3 sq ft
Cylinders (dia x stroke)(2) 25" x 34"(2) 26" x 34"(2) 26" x 34"
Cylinder HP2754 HP2979 HP2979 HP
Boiler Pressure245 psi245 psi245 psi
Tractive Effort64,100 lbs69,350 lbs69,350 lbs
Tender Capacity:   
water:22,000 gals.22,000 gals. gals.21,000
coal:22 tons22 tons30 tons

USA and Canadian Railroads that used 2-8-4 "Berkshire" Type Locomotives

Surviving Examples of 2-8-4 "Berkshire" Type Locomotives

No.ClassF.M. WhyteGaugeRailroad LineLocationStatusBuilder InformationNotes
1966M-12-8-44'-8½"L&N Southeastern Railway Museum, Duluth, GAdisplaytender only
2707K-42-8-44'-8½"C&O Illinois Railway Museum, Union, ILdisplayALCO (Schenectady) #70856, 1943
765A (1985)M-12-8-44'-8½"L&N FWRHS, Edgerton Rd, New Haven, INauxiliary water tendertender only, from Kentucky Railway Museum
765S22-8-44'-8½"NYC&StL FWRHS, Edgerton Rd, New Haven, INoperationalLima #8673, 1944
2789K-42-8-44'-8½"C&O Hoosier Valley Railroad Museum, North Judson, INrestorationALCO (Schenectady) #75202, 1947
2716K-42-8-44'-8½"C&O Kentucky Railway Museum, New Haven, KYdisplayALCO (Schenectady) #70865, 1943Once operated in the Norfolk Southern steam program.
2705K-42-8-44'-8½"C&O B&O Railroad Museum, Baltimore, MDdisplay
1223N-12-8-44'-8½"PM North Harbor Drive, Grand Haven, MIdisplayLima #7837, 1941
1225N-12-8-44'-8½"PM Steam Railroading Institute, A A Shops, Owosso, MIoperationalLima #7839, 1941Appeared in Polar Express movie
2727K-42-8-44'-8½"C&O Museum of Transportation, St. Louis, MOdisplayALCO (Schenectady) #70876, 1944
755S22-8-44'-8½"NYC&StL Conneaut Station, Conneaut, OHdisplayLima #8663, 1944
2700K-42-8-44'-8½"C&O Dennison Railroad Depot Museum, Dennison, OHdisplayALCO (Schenectady) #70849, 1943 many rumors of being restored
779S32-8-44'-8½"NYC&StL Lincoln Park, Lima, OHdisplayLima #9380, 1949
763S22-8-44'-8½"NYC&StL Age of Steam Roundhouse, Sugarcreek, OHrestorationLima #8671, 1944From the Virginia Museum of Transportation
2776K-42-8-44'-8½"C&O Jesse Eyman Park, Washington Court House, OHdisplayALCO (Schenectady) #75189, 1947
759S22-8-44'-8½"NYC&StL Steamtown National Historic Site, Scranton, PAdisplayLima #8667, 1944
757S22-8-44'-8½"NYC&StL Railroad Museum of Pennsylvania, Strasburg, PAdisplayLima #8665, 1944
2760K-42-8-44'-8½"C&O Treasure Island Road, Lynchburg, VAdisplayALCO (Schenectady) #75173, 1947
2756K-42-8-44'-8½"C&O Huntington Park, Newport News, VAdisplayLima #9263, 1947
2732K-42-8-44'-8½"C&O Science Museum of Virginia, Richmond, VAdisplayALCO (Schenectady) #70881, 1944
2736K-42-8-44'-8½"C&O National Railroad Museum, Green Bay, WIdisplayLima #70885, 1925
2755K-42-8-44'-8½"C&O Chief Logan State Park, Logan, WVdisplayLima #9262, 1947 Placed on the National Register of Historical Places on Sep 28, 2006

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