Granite Rock Co. 10

Granite Rock Co. 10
Type and origin Power type Steam Designer Howard G. Hill Builder H. K. Porter, Inc Serial number 7461 Build date August 1942
Specifications Configuration: ​  • Whyte 0-6-0T  • UIC C nt Driver 4 ft 6 in (1,372 mm) Gauge 1,435 mm (4 ft 8 1⁄2 in) Minimum curve 150 ft (45.72 m) radius Length 29 ft 6 in (8.99 m) Fuel type Oil Fuel capacity 2,500 lb (1,130 kilograms) coal, or 300 US gallons (4,500 L; 1,000 imp gal) Water cap 1,200 US gallons (4,500 L; 1,000 imp gal) Firebox:  • Firegrate area 19.4 sq ft (1.80 m2) Boiler pressure 210 lbf/in2 (1.45 MPa) Heating surface 876 sq ft (81.4 m2)  • Tubes 790 sq ft (73 m2)  • Firebox 86 sq ft (8.0 m2) Superheater None Cylinders Two, outside Cylinder size 16.5 in × 25 in (420 mm × 640 mm) Valve gear Walschaerts Valve type Piston
Performance figures Tractive effort 21,630 lbf (96.22 kN) Factor of adh. 4.65
Career Numbers USATC 5001 GR Co. 10 First run August 1942 (As built) May 1997 (First restoration) April 11, 2015 (Second restoration) Withdrawn 1960s (Mainline service) July 2011(First excursion service) 2020(Second excursion service) Restored May 1997(First) April 11, 2015(Second) Disposition Out of service, getting reworks on valves and cylinders

Granite Rock Company No. 10 is an "S100" Class 0-6-0 steam locomotive built in 1942 by H.K. Porter for the United States Transportation Corps.

History

No. 10 was built in Pittsburgh, Pennsylvania, by H.K. Porter in 1942, for the United States Transportation Corps. (USATC), originally No. 5001, she served in the Army depot in Tracy, California.

After World War II, in 1947, No. 5001 at the time, was sold to the Granite Rock Company of Watsonville, California, renumbered to No. 10, where she was switching and hauling hoppers full of granite for the company's Logan-area quarry until the 1960s, when dieselisation became more popular amongst railroads and companies, such as GE switcher diesels for smaller companies like them.

No. 10 was then put out of service indefinetely for around 30 years, sitting in the Granite Rock's yards, until the late president and CEO of Graniterock, Bruce Woolpert, donated her to the California State Railroad Museum in 1995.

No. 10 was brought to the Dixon Boiler Works, in Los Angeles in 1996 to get a new boiler,as the original one had external corrosions, mostly at the "longitudinal butt strap", and in less than a year,she was fully restored to operating condition in May of 1997, pulling on the museum's excursion railroad called "Sacramento Southern Railroad".

In 1999, No. 10 participated in the Railfair of 1999, alongside many other famous locomotives.

In 2011, No.10 was taken out of service for extensive boiler repairs, before returning in April 11th, 2015.

As of 2024, No. 10 is still out of order since the early 2020s, as the museum is fixing some cylinder issues and reworking the valve bushings.

References

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