Port Isabel Lighthouse

The Point Isabel Lighthouse is a historic lighthouse located in Port Isabel, Texas, United States that was built in 1852 to guide ships through the Brazos Santiago Pass to Port Isabel. The lighthouse was added to the National Register of Historic Places on April 30, 1976.

On September 28, 1850, the United States Congress authorized an appropriation of $15,000 for "a lighthouse and beacon light" at Brazos Santiago Pass. Work began in February 1852. When complete, the lighthouse was an 82-foot-high brick tower and had four lights. By 1854, it had 15 lamps and 21 reflectors. A third order fresnel lens was installed in 1857 and the fixed light was varied by flashes.