ServicesHydropower and Dams

Our focus: conservation of the world’s irreplaceable resource – water. Our goal: Building a Better World.

...more than 7,500 employees on six continents...

MWH Global is a strategic consulting, technical engineering and construction services firm leading the wet infrastructure sector. Offering a full range of services and innovative, award-winning solutions beginning in the initial planning phases through construction and asset management, we partner with our clients in multiple industries to implement projects and programs that focus on water, energy, natural resources and infrastructure. Our 7,500 employees in 35 countries spanning six continents are dedicated to fulfilling our purpose of Building a Better World, which reflects our commitment to sustainable development.

Leading Wet Infrastructure Around the World

We are Building a Better World

Building a Better World is inherent to the way

we do business and the way we live our lives

as individuals. And as global leaders in the

wet infrastructure sector, our employees see

firsthand how critical water is for life on Earth.

We partner with organizations who strive to

ensure every single community – and every

human being – has access to clean water.

In addition, a sustainable future for our planet

and its people remains a top priority for our

company and its employees. This is why we

conduct and support educational outreach

programs designed to address climate change

and encourage sustainable practices.

We recognize that the health of our planet is

deeply rooted in the wellbeing of its people.

Therefore, we support global humanity by

supporting efforts to cure disease, fight poverty

and lend a hand to the many charitable

organizations dedicated to causes that fuel our

passion.

With a rich legacy that dates back to 1820 and more than 7,500 employees on six continents, our global team includes program managers, business consultants, engineers, geologists, operators, scientists, technologists and regulatory experts who provide solutions to the world’s most challenging wet infrastructure projects.

The MWH team is driven to meet today’s challenges, dedicated to innovation and committed to mastering and applying emerging technologies to create client-focused results. We have engaged in the engineering, construction, financing and management of some of the world’s largest and most technically significant wet infrastructure projects for our client base of more than 4,000 municipalities, governments, multi-national corporations and industries.

MWH Ranks at the Top of the SectorAccording to Engineering News-Record, our industry’s leading trade

publication, MWH is a leading firm in nearly every water category. We are

proud to be:

#2 Hydroplants

#3 Transmission Lines and Aqueducts

#3 Water

#3 Water Supply

#3 Sewer/Wastewater

#4 Design Firms for WaterSource: ENR, 2011 and 2012 Sourcebooks A complete list of our industry rankings is available at www.mwhglobal.com.

We Focus on Sustainable SolutionsPerhaps the most significant role we play in hydropower development, whether the construction of new facilities or improving the efficiencies of existing ones, is our role as stewards of our environment. Our sustainable solutions, specifically for fish and water quality protection, minimize the impact hydropower and dams facilities have on the environment and surrounding communities.

We Responsibly Develop Hydropower Throughout the World

Planning, Design and Construction Management

Water Intakes and OutletsMWH engineers design integral and free-standing, multi-level withdrawal intakes for hydroelectric projects. We have designed intakes to meet seismic design criteria, provide a selective reservoir elevation withdrawal and designs includ-ing articulating panels to help regulate downstream water temperatures.

PowerhousesWe have designed small, medium and large powerhouses, including some the largest powerhouses in the world. Our powerhouse design expertise includes powerhouse and pump station layout, equipment island analysis, floor slabs, walls, roofs, retaining walls, bulkheads, gates and trash racks. We are experienced in complicated foundations, drainage improvement, foundation strengthening and reme-diation. Our services include comprehensive dynamic and static structural analysis and use of state-of-the-art analytical modeling tools to meet local requirements typically follow-ing internationally accepted guidelines and requirements.

We represent a world-class concentration of hydropower expertise few other engineering

firms in the world can match. MWH-designed multiple purpose water projects have included

hydropower plants that are currently operating in 33 countries on five continents. Since 1920,

we have designed more than 120 new hydroelectric projects, with a total installed capacity of

70,000 MW, enough annual power for 25 million homes.

Energy generation is often a byproduct of wet infrastructure designed to store, regulate or deliver

water, for multiple uses including flood control, raw water storage, navigation, aquaculture,

recreation and environmental purposes. MWH engineers are the leading experts in multiple use

water resources planning and engineering. This collective multi-disciplinary experience sets us

apart, and as environmental stewards, we are dedicated to sustainable development principles

in all phases of project execution.

MWH engineers designed the largest canal in the world as part of the Ghazi Barotha Hydropower Project in Pakistan. This 10.5-meter-deep, 52-kilometer-long concrete-lined headrace canal has a capacity of 1,600 cubic meters per second.

Water Conveyance SystemsMWH-designed canals, pipelines and tunnels range in ca-pacity from 1.0 cfs to 60,000 cfs and penstocks from one to more than 35 feet in pipe diameter. Our services span the life of the project from initial project engineering and planning through to construction management services, operations and maintenance support, and decommission-ing. Our experience includes using a variety of construction materials and applications such as buried and above-ground steel and buried concrete to address wide-ranging project goals, including conveyance, flow velocities, reduc-ing head losses and increasing power generation.

Regulatory and PermittingThe MWH organization is a leader in strategic regulatory planning and environmental services designed to achieve timely approvals and public acceptance. Our full range of consultation services includes FERC licensing and relicens-ing in the U.S. and international expertise in environmental impact assessment and permitting regulations. Our integrated approach of engineering and planning services offers an unmatched level of efficiency.

Specialized Hydropower Expertise in All Types of Hydropower Technologies

Pumped StorageOur pumped storage expertise includes planning, design, upgrade and rehabilitation of pumped storage projects with capacities ranging from 40 to more than 2,000 MW. MWH has experience with all types of single staged and multiple staged units, single and adjustable speed, and specialized expertise in system modeling, financial plan-ning, contracting strategies and regulatory and community

assessment. Our engineers lead the industry with successful projects that include the most recent advances in design technology, materials, fabrication methods and controls, which significantly improve the efficiency, performance, opera-tion and project flexibility.

Incremental HydropowerThe potential for generating additional power at exist-ing dams, 97 percent of which do not have hydroelectric facilities, is paramount to meeting power generation needs across the globe. In the U.S. alone, this equates to more than 21,000 MW of additional energy generating potential by repowering, rehabilitating and upgrading existing hydro-power facilities, as well as adding hydropower generation to existing dams, water systems and treatment plants.

Plant Rehabilitation and UpgradeMWH engineers have prepared plans and specifications and supported procurement and/or construction for more than 300 hydro rehabilitation projects. This experience includes the modernization of existing powerhouses and generating equipment, replacing or improving equipment and control systems, providing better reservoir regula-tion, adjusting reservoir water levels or performing other hydraulic enhancements. As one of the few engineering firms in the world specialized in designing and managing the construction of new hydro facilities, we are uniquely capable of applying the most current techniques for project redevelopment. Improving the way water is stored, deliv-ered and utilized can result in higher power production at an existing hydropower facility.

Small HydroOur engineering experience on more than 25 new and re-developed small hydro plants in the last 20 years has led to an unmatched depth of understanding on the differences between large and small hydro projects. We understand that the economics associated with these small plants, es-pecially those with significant intake and water conveyance features are often dependent on our cost-effective design solutions. Our expansive knowledge of financing, costing and procurement facilitates successful hydro development for our clients.

Cultivating Innovative Hydropower TechniquesThe MWH team is at the forefront of planning, design and implementation of innovative hydropower facilities, including fish-friendly turbines and water passageway, hydrokinetic developments, and ultra low-head hydro and ocean and wave energy systems. It is predicted these new systems could play a significant role in energy generation by 2025, with the potential of nearly 13,000 MW of new capacity.

We Have Planned, Designed and Operated Some of the World’s Largest and Most Complex DamsOur experience includes the planning, design and construc-tion management of dams both in the U.S. and around the world. Our experienced, multi-disciplinary team of engi-neers is supported by the latest computer hardware and software. This blend of expertise and capability provides our clients with the necessary engineering services regard-less of project size. Our reputation for innovative, quality engineering extends into all types of dam design including:

• Earth and Rock-fill Dams

• Concrete Dams• Roller Compacted Dams

• Rubber Dams

SpillwaysThis expertise extends into the necessary skills to handle all aspects of project design, rehabilitation, inspection and safety review. Our engineers have provided solutions to resolve issues for more than 300 dam projects throughout the world, helping clients develop practical programs for evaluation and design alternatives addressing dam safety, operations and regulatory issues while minimizing costs and service interruptions.

Dam RaisingOur expertise in dam raising comes from designing more than 20 such projects, including both concrete and fill dams. Raising existing dams, or designing new structures to allow for staged developments, enables adaptation of these projects to economic realities. Staged development reduces the initial cost of a project and allows for later expansion as the need for water and/or electricity grows. It can also compensate for reservoir siltation and meet changing flood safety regulations.

Seepage Evaluation and ControlMWH engineers routinely perform seepage analysis on the foundation and embankment structures for both new and existing dams and levees using the most technically advanced techniques. Mitigation designs have included internal drainage, seepage cutoff barriers using sheet piles, slurry walls, foundation grouting and soil mixing; and exten-sion of the seepage path both upstream and downstream.

Our design and construction support services for raising the Guri Dam in Venezuela by 171 feet (52 meters) in 1986 was recognized by ENR magazine as one of the top 125 Engineering Achievements in the last 125 years.

Proven Experience

AMP Hydroelectric Projects, United StatesThe MWH team is designing and managing construction of four new hydroelectric projects on the Ohio River that will provide a new source of clean, renewable energy for more than 70 municipal electric systems in four states. The facili-ties are being installed at four existing U.S. Army Corps of Engineers locks and dams and have a combined generat-ing capacity of more than 300 MW. We are providing a full range of multi-disciplinary services, including preliminary engineering, hydraulic modeling, procurement, detailed design and resident engineering.

Karahnjukar Hydroelectric Project, IcelandWe provided design, engineering and construction management support for the $2-billion Karahnjukar Hydro-electric Project, which is the largest project ever developed in Iceland. The198-meter-high dam is the highest concrete-faced rockfill dam in Europe and will yield 690 MW from six turbines at the world’s highest head (600 meters) for the type of turbines used at this project.

Rocky Mountain Pumped Storage Project Upgrade, United StatesMWH engineers provided planning, design, regulatory and construction management services for the 848-MW Rocky Mountain Pumped Storage Facility in Rome, Georgia, when it was originally constructed in 1989. As a testament to our continued client service, we are currently managing the upgrade of the facility to increase the plant’s peak gen-erating capability to a maximum of 1,050 MW.

MWH Global 370 Interlocken Boulevard, Suite 300 Broomfield, CO 80021+1 303 410 4000

Don ErpenbeckNorth America 175 West Jackson Boulevard, Suite 1900 Chicago, Illinois 60604 Donald.Erpenbeck@mwhglobal.com+1 312 831 3077

Glenn S. TarboxDams Practice Leader2353 130th Avenue, NE, Suite 200Bellvue, Washington 98005Glenn.tarbox@mwhglobal.com+1 425 896 6950

Contact Us

Craig ScottAsia PacificTower 2, Deans Park, 7 Deans Ave.Christchurch, New ZealandCraig.Scott@mwhglobal.com+64 3 343 8746

Mario FinisGlobal Growth Sector Leader175 West Jackson Boulevard, Suite 1900Chicago, Illinois 60604Mario.Finis@mwhglobal.com+1 312 831 3230

John TargettLatin AmericaAv. Conquistadores 626-638San Isidro, LimaPeruJuan.F.Targett@mwhglobal.com+511 700 3777

Craig McMasterEurope-AfricaEastfield HouseEastfield RoadEdinburgh – EH28 8LSUnited KingdomCraig.McMaster@uk.mwhglobal.com+44(0) 131 3354200

06/2012www.mwhglobal.com