The prima facie speed limit on a Texas beach is __________ mph.

The prima facie speed limit on a Texas beach is established at 15 mph, which means that this speed is considered to be the maximum allowable limit unless otherwise indicated by signs or regulations. The purpose of this limit is to ensure the safety of beachgoers, pedestrians, and wildlife, while allowing for reasonable travel on the beach. It takes into account the unique environment of a beach, where conditions can change frequently and where the presence of people is often high.

Lower speed limits like 10 mph might not accommodate the needs for reasonable travel, while higher limits, such as 20 mph or 25 mph, would pose increased risks to safety in such a mixed-use area. The 15 mph speed limit strikes a balance, promoting safety while allowing for adequate mobility on the beach.