e3c8f4ec317740a79063e8605029323d

Three-part diagram depicts the process of a canal boat "locking-through."

Three-part diagram depicts the process of a canal boat "locking-through

The upper sluice valves are opened and water in lock is raised to level of upstream canal. Upper gates are opened and boat enters lock (top illustration). Upper gates and their sluice valves are closed. Sluice valves in lower gates are opened, allowing water to empty from the lock (middle illustration). The boat is lowered slowly as the water in the lock drops to level of downstream canal. Lower gate is opened and boat proceeds on lower level of canal (bottom illustration).

Abbr=PUB

U.S. National Park Service

Project=Handbook; Art_Registration_No=PUB-0036; Reflective Art

Government owns art and all reproduction rights.

Public domain

Industry and Technology, (HFC ArtTheme)
, Watercolor, (HFC ArtMedium)

Image

Chesapeake and Ohio Canal National Historical Park, Code: CHOH

Chesapeake and Ohio Canal National Historical Park
Latitude: 39.5996513366699, Longitude: -77.9448394775391

Image Management System : IMS 07442

HFC Commissioned Art Collection

20190904

01/01/1990 - 12/30/1990

Image_Size=6-3/4" X 9-3/4"; Count:1b/3; Chesapeake and Ohio Canal National Historical Park handbook, page 34

MC A5

Public Can View

Demers, Donald

Organization: Harpers Ferry Center
Address: Harpers Ferry Center, 67 Mather Place, Harpers Ferry, WV, 25425, 304-535-5050

Sunday, October 6, 2019 3:37:41 PM

Sunday, October 6, 2019 3:37:41 PM

07442.jpg

jpg

45.1 kB

Museum

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