Lehigh Canal, Lock 25, 800 feet south of Walnutport-Slatington Bridge, Walnutport, Northampton County, PA
Significance: 22 by 100 foot lock constructed by the Lehigh Coal and Navigation Company. The third of seven locks (originally eight) in the four mile Section Three between the Lehigh Gap Dam and the outlet lock below Lockport. Lift: 9/1 feet. The lock is in good condition though there is a heavy growth of shrubbery in the lock walls. A concrete bulwark has been poured behind the drop gate at the upper end, over which a wooden footbridge passes. The two story stuccoed locktender's house adjacent is still used as a residence.
Survey number: HAER PA-160
Building/structure dates: ca. 1825 Initial Construction