Various CUs and MSs of heavy construction machinery at work, of pile driver frames, heads and machinery, mechanical shovels, buckets and cabs, heavy-duty trucks, large concrete buckets being swung over to elevator hoppers by crane and emptied into hoppers. Various shots of shovel buckets biting into dirt, filling truck, of pile drivers in action. ECUs of bucket, digging, emptying into truck. Sequence on pile driver ending in FOLLOW SHOT of dismantled pile driver head swinging from crane hook, TILT UP to several pile driver frames standing in row against sky. Various HAMSs of transit (theodolite) standing by itself in excavation.