Battle of the Barrier Forts was fought along the river that has what total length?
Battle of the Barrier Forts The Battle of the Barrier Forts (also known as the Battle of the Pearl River Forts) was fought between American and Chinese forces in the Pearl River, Guangdong, China in November 1856 during the Second Opium War. The United States Navy launched an amphibious assault against a series of four forts known as the Barrier Forts near the city of Canton (modern-day Guangzhou). It was considered an important battle by the British whose interest lay in capturing Canton.
Point Marion Lock and Dam Point Marion Lock and Dam, previously known as Lock and Dam Number 8, is one of nine navigational structures on the Monongahela River between Pittsburgh, Pennsylvania and Fairmont, West Virginia. Maintained and built by the U.S. Army Corps of Engineers, the gated dam forms an upstream pool that is 11.2 mi long, stretching to the base of the Morgantown Lock and Dam. It is located at river mile 90.5 (river kilometer 145.6).