Rehabilitation of Two 75T Gantry Cranes

Advanced Crane Technologies was contracted as the PRIME contractor by the U.S. Army Corps of Engineers to rehabilitate two (2) 75-ton gantry cranes at the Jim Woodruff Dam. The scope included comprehensive mechanical, electrical, structural, and environmental upgrades in accordance with USACE specifications. The project required detailed inspection, rehabilitation, and full load testing of both intake and spillway cranes.

Upgrades included asbestos and lead abatement, mechanical and structural repairs, and replacement of outdated systems such as lighting, festooning, compressed air, and travel alarms. The hoisting and travel systems were cleaned, lubricated, and rebuilt as needed, including complete motor, brake, encoder, and limit switch replacement. Additional upgrades included installation of new remote controls, safety chains, and cab refurbishments.

Scope of Work

• Site Inspection: Performed detailed mechanical inspections and certifications
• Design & Planning: Provided all drawings, submittals, and project management per specification
• Mechanical Repairs: Replaced equalizer pins, aux hoist input shaft, drive motors, and hook blocks
• Structural Upgrades: Performed welding repairs, replaced splice plates, and repaired machinery deck
• Environmental Remediation: Performed asbestos and lead abatement; applied spot painting and protective coatings
• System Replacement: Installed new festoon system, air system, limit switches, hoist brakes, encoders, lighting, travel alarms, and remote controls
• Refurbishment: Cleaned, lubricated, and reinstalled gear drives, drums, and machinery
• Testing: Conducted full load testing and recertification
• Spare Parts: Provided specified spare parts to the client