Dams, Water Control Structures and Hydro Power

UESI provides engineering, consulting, inspection, maintenance and construction services to customers nationwide. Our services cover assets located both above and below the water and support operating plants and dams undergoing decommissioning. We have the capabilities to respond rapidly to emergent work, perform large scale projects, and support multi-year service contracts.

UESI provides multi-disciplined consulting and engineering services. We are able to address a wide range of challenges facing the hydro power industry. Our resources include engineers, consultants, diver/inspectors, and marine construction specialists to address issues both above and below the water.

UESI inspection programs comprehensively assess a structure and its operating components. Data can then be combined to address regulatory issues and create a comprehensive maintenance plan, if necessary. Inspection plans are developed in cooperation with the Licensee so that they are specific to the needs of the facility. Inspection services include:

Mechanical and Structural Inspection
Concrete and Steel Inspection
Underwater Inspection
Scour Assessment
Inlet/Outlet Works, Penstock and Tunnel Inspection

Sonar-Enhanced Inspection
Coating and Corrosion Inspection
Weld Inspection
Leak Detection
FERC Part 12 Inspection Support

Our Services

UESI has extensive experience in performing repair and maintenance work on concrete structures. With our in-house engineering capability, we are able to address the design/build needs of complex repair or maintenance requirements. With our highly skilled dive teams, these services are easily extended to underwater areas. Our repair, maintenance, and marine construction services include:

Debris, Sludge and Sediment Removal	Concrete Placement by Tremie or Pumping
Concrete Repair and Leak Sealing	Leak and Spall Repair
Epoxy and Chemical Grout Injection	Apron Repair
Head Gate Adjustment and Repair	Pump, Pipe and Cable Installation
Weld Repair of Carbon and Stainless Steel	Erosion Control and Mitigation
Certified Underwater Coatings Application	Bulkhead, Pier and Pile Rehabilitation
Underwater Leak Detection, and Repair	Gate Installation and Underwater Rehabilitation
Scour Protection and Remediation	Membrane Installation
Penetrations and Deep Diving	Gates and Guides – Sills and Seals
CP Installation	Shafts and Linkage
Concrete Restoration	Trash Racks and Stop Logs
Grout and Epoxy Injection	Valve Repair and Replacement

Please visit our service pages for an overview of UESI’s capabilities. If you have questions, one of our professional engineers, subject matter experts, or technical specialists will be happy to discuss your maintenance issue or project needs to assist in developing an effective approach.