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"The Pont-y-ru-Prydd goes over the River Taff near Newbridge. The arch measures 140 feet between the abutments, and has a rise or versed sine of 35 feet. The width of the soffit is 15 feet 10 inches at the springing, diminishing to 14 feet 5 inches at the crown by six offsers." — Encyclopedia Britanica, 1893

Pont-y-tu-Prydd

"The Pont-y-ru-Prydd goes over the River Taff near Newbridge. The arch measures 140 feet between the…

"An abutment for one end of the shore, the other end of which is firmly fixed in the ground."—Finley, 1917

Shoring

"An abutment for one end of the shore, the other end of which is firmly fixed in the ground."—Finley,…