. Electric railway journal . Fig. 18—Southern Pacific 1200-Volt Lines—Four-Track In-termediate Bridge at Curve fabricated by the American Bridge Companv from SouthernPacific designs. Figs. 19 to 26 show the several types of steel pole spanside and center construction which are used in operatingever public streets. The clearance between the top ofthe rail and the trolley is 22 ft. throughout. The poles forside construction are 34 ft. long and for center pole con- EUcu-ic H>J--Journal Fig. 20—Southern Pacific 1200-Volt Lines—StandardDouble-Track Span Construction of feeder, in.; size of troll

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. Electric railway journal . Fig. 18—Southern Pacific 1200-Volt Lines—Four-Track In-termediate Bridge at Curve fabricated by the American Bridge Companv from SouthernPacific designs. Figs. 19 to 26 show the several types of steel pole spanside and center construction which are used in operatingever public streets. The clearance between the top ofthe rail and the trolley is 22 ft. throughout. The poles forside construction are 34 ft. long and for center pole con- EUcu-ic H>J--Journal Fig. 20—Southern Pacific 1200-Volt Lines—StandardDouble-Track Span Construction of feeder, in.; size of trolley wire, No 0000; approxi-mate weight of messenger, trolley wire and hangers, 1 V-> foot; approximate weight of feeder, 1^ lb. per pole has a protecting sleeve at the ground line. Thissleeve is 24 in. long and 6 in. of it extends into the concretefoundation. It was specified that in a 60 windstormat right angles to the track these poles must not have.

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