. Electric railway journal . wayis a combination of earth-filled approaches, from the mainlandand the island ends, and a reinforced-concrete arch viaductwith a steel lift bridge at the center. The length of the filledportion of the causeway is 8184 ft.; of the concrete viaduct).J358 ft., and of the lift bridge, 100 ft. On the filled portion ofthe causeway there is sufficient room for a double-track inter-urban line, but only a single track can be maintained on theconcrete viaduct and Scherzer 100-ft. clear span steel lift bridge. The interurban track will consist of 80-lb T-rail laid on6-in. x
. Electric railway journal . wayis a combination of earth-filled approaches, from the mainlandand the island ends, and a reinforced-concrete arch viaductwith a steel lift bridge at the center. The length of the filledportion of the causeway is 8184 ft.; of the concrete viaduct).J358 ft., and of the lift bridge, 100 ft. On the filled portion ofthe causeway there is sufficient room for a double-track inter-urban line, but only a single track can be maintained on theconcrete viaduct and Scherzer 100-ft. clear span steel lift bridge. The interurban track will consist of 80-lb T-rail laid on6-in. x 8-in. x 8-ft. cypress ties, spaced 2 ft. centers in gravel orbhell ballast. Six-bolt Bonzano rail joints will be used, togetherwith welded bonds of No. 0000 copper, supplied by the ElectricRailway Improvement Company, of Cleveland, Ohio. About100,000 cypress ties are used. The company is also experiment-ing with 20,000 hard pine ties, seasoned and dipped in carbo-lineum, and with 10,000 creosoted ties. The roadbed is nearly. Galveston-Houston Line—Decking on Bridge AcrossClear Creek all embankment work, 18 ft. wide at the top. The cuts are veryfew and light. There will be about 27 open-deck pile trestleson the line, crossing creeks, bayous and natural drainage will vary in length from 24 ft. to 700 ft. Culverts ofcypress timber are to be provided at various points to insuregood drainage. The minimum depth of ballast below thebottom of the tie is to be 6 in., and the ballast is to be crowned March it, 191 i. ELECTRIC RAILWAY JOURNAL. 409 to shed water throughout the entire line. Cattle guards are tobe installed at all road crossings, and the entire right-of-waywill be fenced in, except where the line crosses highways. CATENARY TROLLEY AND OTHER CIRCUITS Direct current for car operation will be supplied by a singlecatenary trolley of No. 0000 B. & S. section, carried on three-fourths of the line by a 7/ 16-in. steel messenger cable. About10 miles of the line near th
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