A crypt from the 1800s can still be seen under the Franklin St Bridge on Buffalo Bayou. The area contained un-exploded artillery from the Confederate days.
In 1866, the Donnellan brothers found one of the unexploded bombs and accidentally blew it up while handling it. Their crypt was built right into the south bank of the bayou.
Donnellan’s Crypt red brick entrance can still be seen under the bridge to this day.
To this day there’s never been a professional cleanup to find the rest of the weaponry.