. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . g the Santa Ana river five miles westof Riverside, Cal., on the San Pedro,Los .Angeles & Salt Lake Railroad, is aconcrete structure 984 ft. long, 17 , and having an average height of55 ft. It contains about 14,000 cu. concrete. The main arches, eipht in number, which arc 9 by 21 ft., and arc pene-trated vertically by two wells by Sit., thus saving material and providing acomplete drainage system by means ofweep holes at the bottom of the wells,and horizontal tunnels at the t
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . g the Santa Ana river five miles westof Riverside, Cal., on the San Pedro,Los .Angeles & Salt Lake Railroad, is aconcrete structure 984 ft. long, 17 , and having an average height of55 ft. It contains about 14,000 cu. concrete. The main arches, eipht in number, which arc 9 by 21 ft., and arc pene-trated vertically by two wells by Sit., thus saving material and providing acomplete drainage system by means ofweep holes at the bottom of the wells,and horizontal tunnels at the top of eacharch haunch. The outer spandril walls are 3 , rising ft. above the crown ofthe arch, and surmounted by a TS in. tils, and a 5 ft. parapet wall forming arefuge bay on each side of the bridgeat each pier. The approaches are doubleretaining walls connecting with theabutment piers by a ft. arch • ofsimilar construction to that of thelarger arches. The retaining walls arerelieved by pilasters at either end. thesecond pilaster acting as the shore pierfor the small CONCRETE VI.\DUCT OVER THE S.\NT.\ .\NA RIVER. IN CALIFORNIA with loo-ft. centers, are circular, havinga radius of ft., and a rise of the spring to the crown of thearch. The arch ring is inches widerthan the spandril walls, and has an up-per radius of 50 ft., being 42 ins. thickat the crown of the arch. The sevenstream piers have a footing course 16by 8 ft. Above the footing course tothe water level, the piers are six inchessmaller, with the corners cut off. makingan octagonal form. The water tables. coping and a 3 ft. parapet wall. Thereare also two inner spandril walls run-ning from a point ft. from thecrown of the arch on each side, and atabout the same elevation, with a slopeof I to 30 to the piers. These walls areconnected by a cross wall ft. fromthe pier, and are covered by a 10 floor sustaining the ballast,which is ft. deep at the cr
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
