Merrill Lock No. 6

Also known as: Lockhouse 6 Restaurant
610 Midland-Beaver Road; Beaver, PA


By Nyttend - Own work, Public Domain,




The Merrill Lock and Dam was the second in a series of ten locks and dams built along the Ohio River between 1892 and 1904. The isolated grouping was designed by and named for engineer William E. Merrill, supervisor of the Ohio River improvement, assisted by engineer William H. Chadbourn Jr.

The complex, replaced in 1936 by the Montgomery Lock and Dam, has survived several owners and uses, most recently as a restaurant and marina. The orange-colored brick buildings perch on a narrow strip of land parallel to the Ohio River. The lock house's round-arched apertures and tower with flared and bracketed eaves lend it an Italianate flavor. The tower originally concealed a water tank for the lock buildings, and a semicircular bay at its base offers views up and down the river. Stone detailing at the imposts and sills sets off the patterned brick, while a large five-bay, hipped-roof dormer on the river facade and a smaller version facing east complement the height of the tower and chimney. An oversized paneled chimney anchors the rear elevation with the coal storage area at its base. The interior formerly housed the machinery used to operate the lock gates, and retains a foliated metal stair rail to the south of the main entrance.

To the east of the lock house, a foursquare house, tied stylistically to the main building through the use of round-arched windows on the upper story, housed either the lock master's family or crews. An identical house west of the lock house was demolished.

National Register information 

Posted to the National Register of Historic Places on September 4, 1980
Reference number
Architectural style
Victorian: Romanesque
Areas of significance
Transportation; Architecture
Level of significance
Evaluation criteria
A - Event; C - Design/Construction
Property type
Historic functions
Water-related; Institutional housing
Current function
Single dwelling
Periods of significance
1900-1924; 1875-1899
Significant years
1892; 1904
Number of properties
Contributing buildings: 3
Contributing structures: 1

Update Log 

  • September 4, 2020: New photos from Brian Manville
  • September 4, 2020: New photo from Brian Manville
  • November 19, 2018: New photo from Bill Eichelberger
  • November 19, 2018: New photo from Bill Eichelberger