Houston Police, Harris County Divers at Center of Guadalupe River Recovery Effort

Divers from the Houston Police Department and Harris County Sheriff’s Office are playing a leading role in the search for flood victims still missing after the devastating July 4 disaster in the Texas Hill Country. Their mission, armed with advanced sonar technology, is both emotionally charged and perilous.

Linsey Cooper

By 

Linsey Cooper

Published 

Aug 7, 2025

Houston Police, Harris County Divers at Center of Guadalupe River Recovery Effort

As the first light of day illuminates the Guadalupe River, divers from the Harris County Sheriff’s Office and the Houston Police Department are already submerged in the water. The goal is to locate the last remaining victims of the devastating flood that struck the Texas Hill Country on July 4.

“We’re essentially searching for a needle in a haystack,” stated Capt. David Jasper of the Harris County Marine Unit highlighted the challenges of the operation. A devastating flood traversed 127 river miles from Camp Mystic to Canyon Lake, resulting in over 130 fatalities and putting immense pressure on local search teams.

Last week, teams from the Houston area came together to participate in one of the most significant search operations related to flooding in the state's recent history. Their attention is now on Nimitz Lake—a seemingly tranquil name for a perilous area of water now obscured by concealed hazards.

“Our commitment is to serve the community.” "Our focus is on supporting the families," Jasper stated.

Floodwaters at Camp Mystic carried away 8-year-old Cile Steward, a young camper, leaving him unaccounted for. Rather than meticulously searching every part of the river, divers in Houston are employing cutting-edge sonar technology to identify potential targets. As soon as sonar detects an anomaly, divers are dispatched to examine the precise location.

Sgt. Benjamin Luce observed that a significant portion of their findings consists of debris: “It’s a lot of just debris piles... shallow waters, twisted logs, metal.” What distinguishes this team is its technology. Divers equipped with rare head-mounted sonar can scan in real time as they navigate underwater—only around 30 dive teams worldwide utilize this advanced technology.

“He can navigate around obstacles and hazards, and he’s heading directly towards that target,” stated Sgt Edward Godwin of HPD’s dive team.

“This isn’t a cheerful conclusion,” Jasper acknowledged. “Our responsibility is to assist these families in discovering tranquility.”

Although the tools are helpful, they do little to alleviate the emotional burden. Every mission draws the divers nearer to families clinging to hope—and at times, finding closure.

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