Standard Subsea is a maritime robotics company. Scout is an uncrewed surface vessel that deploys an observation-class ROV to inspect the submerged concrete and steel of a navigation lock without dewatering it or putting a diver in the water. It works the flooded chamber and yields to every commercial tow, so the lock stays in service. Stereo cameras, scanning sonar, and an acoustic and dead-reckoning positioning chain produce a measured, located record of cracks, spalling, corrosion, and missing hardware. Every demonstration delivers the raw data and a written report of measured defects, plus a photogrammetric 3D model where conditions allow; USACE applies the condition rating. The system is self-sufficient: it launches at a boat ramp, runs on hot-swappable batteries with no site power, and is piloted remotely from Los Angeles by a two-person ground crew. It puts cheap, scalable inspection and bathymetric capability in the hands of every USACE district.