Thursday, February 26, 2009

Mt Hamilton Rd CA - rt130

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The sinuous 19-mile (30 km) Mt. Hamilton Road (part of State Route 130) is popular with bicyclists and motorcyclists. Built in 1875–76 in anticipation of the observatory, and the need to carry materials and equipment up the mountain in horse-drawn wagons, the grade seldom exceeds 6.5 percent. The road rises over 4,000 ft (1,200 m) in three long climbs from San Jose to the mountain top. Length is 19 miles (31 km) from the Alum Rock Road junction. The upward trek is interrupted by two descents, first into Grant Ranch County Park, and again to cross Smith Creek.

The road is advertised to include 365 curves, one for each day of the year. This is true, subject to definition of the term "curve." If the yellow line bends to the right, then straightens out, then bends to the right again, it is regarded as one curve. If the yellow line describes an ess, on the other hand, it counts as two curves, regardless of how gentle the ess may be.


Sounds Like fun. Think I'll do this one as my first real LIDAR test stage .. still gotta make a DEM though.Also, I'm only planning on working on the section from smith creek to the summit, due to tree cover - I expect much better data for this segment of the road (and its easier and faster to run with less trees =)

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