20222.BL-4.5 miles west of Dalton, PA--24-foot flat-top undercrossing bridge no. 7.20 over highway [1913]
24-foot flat-top undercrossing bridge no. 7.20 over highway--Details--4.5 miles west of Dalton, PA [1913.04.09] Martins Creek Cut-Off line--Concrete Department--Sheet no. 3 of 3
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