Tedious Work
Even with the right equipment, it was a lot of work. They had no idea at that time what was hidden. They could have been buried with something dangerous.
Divers slowly attached ropes around the submerged object and then the bulldozer. The heavy equipment pulled on anything submerged in water with its horsepower.
What Was it?
After a while, the bulldozer brought something to the surface. The town was gathered to witness what the boy found.
A few people gasped when they saw the massive hatch. Soon, a picture began to form in their heads: Was this an old transport vehicle? Some people used shovels to remove the mud and muck and reveal what had been submerged.