. Electric railway journal . rs where thezinc and lead ores from the Joplin district are treated. The new interurban division connecting the cities ofJoplin and Pittsburg is 24 miles long, and is located on aprivate right of way the entire distance. Woven wirefencing supported on concrete posts encloses the of way. ROADWAY Steam railroad standards were followed in the road-way construction. The total curved track on the 24miles is but 7300 ft., and no curve exceeds 3 deg., andthere are only two of these, the remainder being The grades are very light, considering that
. Electric railway journal . rs where thezinc and lead ores from the Joplin district are treated. The new interurban division connecting the cities ofJoplin and Pittsburg is 24 miles long, and is located on aprivate right of way the entire distance. Woven wirefencing supported on concrete posts encloses the of way. ROADWAY Steam railroad standards were followed in the road-way construction. The total curved track on the 24miles is but 7300 ft., and no curve exceeds 3 deg., andthere are only two of these, the remainder being The grades are very light, considering that the south Carl Junction, Mo., to Pittsburg, Kan., about 18 miles. All openings for drainage less than 8 ft. and requiringmore than 24-in. pipe have standard square-box and double-arch culverts of modern design. The concrete used forthe track substructures comprised the Kansas hydrauliccement mixed with chats and river sand in the proportionof 1 :5 .2. The concrete boxes were so designed as not torequire steel Joplin & Pittsburg—Spreading Ballast There are seven bridges between Pittsburg and Joplin;one is a 250-ft. through-truss bridge and the other shorterstructures are I-beam and built-up girder spans. Thebridges were all built and erected by the SouthwesternBridge Company, Joplin, Mo. The concrete abutments and
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