1 of 10

First responders stand at attention along the side of the room Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

Betty Wells, Port Isabel Chamber of Commerce President, bows her head in prayer Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

Port Isabel City Manger Jared Hockema shares how Monday evening’s bomb threat is a grim reminder of the importance of the Queen Isabella Causeway to their community Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

Brownsville Fire Department honor guard member Juan J. Garcia holds out the Texas flag Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

Drivers travel to and from South Padre Island Tuesday morning along the Queen Isabella Causeway. Tuesday marked the 19th anniversary of the causeway collapse that took eight lives in 2001.(Denise Cathey/The Brownsville Herald).

Capt. Juan Herrera, K-9 Officer Lisa Perez and Officer Carlos Gonzalez of the South Padre Island Police Department listen to speeches by officials Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

South Padre Island Mayor Patrick McNulty says a few words about the impact the causeway collapse had on Port Isabel and South Padre Island Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)

Desiderio Tristan and Nason Rumfield of the Brownsville Fire Department Pipes and Drums play “Dawning of the Day” Tuesday morning at the memorial ceremony for the 19th anniversary of the Queen Isabella Causeway collapse at the Port Isabel Event & Cultural Center.(Denise Cathey/The Brownsville Herald)