Overview

The Shuibuya Dam is a major hydroelectric powerplant located on the Qingjiang River in Badong County, Enshi, Hubei Province, China. It operates as a concrete-face rock-fill embankment dam, a specific engineering design that combines the flexibility of rock-fill with the impermeability of a concrete face. The facility is currently operational and serves multiple critical functions for the region. Its primary purpose is hydroelectricity generation, contributing significantly to the local and national energy infrastructure. In addition to power production, the dam promotes flood control, enhances navigation along the river, and supports tourism and fishery activities in the surrounding area.

The Shuibuya Dam holds a distinct position in global civil engineering records. At 233 m (764 ft) tall, it is recognized as the tallest concrete face rock-fill dam in the world. The structure contains 15,640,000 m3 (20,460,000 cu yd) of material, reflecting the substantial scale of the construction effort. This height and volume underscore the technical complexity involved in managing the Qingjiang River's flow and harnessing its potential for energy production.

The plant has an installed capacity of 1840 MW, making it a significant contributor to the power grid in Hubei Province. The operator of the facility is the Hubei Qingjiang Shuibuya Project Construction Company, which oversees the day-to-day management and maintenance of the infrastructure. The dam was commissioned in 2008, marking the culmination of extensive planning and construction phases that transformed the landscape of Badong County.

The integration of hydroelectric generation with flood control and navigation improvements demonstrates a multi-purpose approach to water resource management. The concrete-face rock-fill design allows for efficient construction and durability, which is essential for maintaining the dam's performance over time. The Shuibuya Dam stands as a testament to advanced engineering solutions in the context of China's expanding energy infrastructure.

Why it matters

The Shuibuya Dam stands as a defining achievement in modern hydraulic engineering, primarily due to its structural classification and unprecedented scale. As a concrete-face rock-fill embankment dam, it represents a sophisticated hybrid design that combines the flexibility of a rock-fill core with the watertight precision of a concrete skin. At 233 m in height, it holds the distinction of being the tallest concrete face rock-fill dam in the world. This record-breaking elevation was not merely an architectural ambition but a necessary response to the topographical constraints of the Qingjiang River in Badong County, Enshi, Hubei Province. The structure contains 15,640,000 m3 of material, a massive volume that underscores the engineering complexity required to stabilize the river valley and manage the hydrostatic pressures at such an elevation. The successful construction of a dam of this magnitude using the concrete-face rock-fill method provided critical data on the performance of this technology under extreme load conditions, influencing subsequent hydroelectric projects in mountainous regions where traditional concrete gravity dams might be less economical or geologically suited.

Regional Energy and Basin Development

Beyond its structural novelty, the Shuibuya Dam serves as a cornerstone of the Qingjiang River basin development strategy. The project is operated by the Hubei Qingjiang Shuibuya Project Construction Company, which manages a facility with an installed capacity of 1840 MW. This generation capacity significantly bolsters the regional energy infrastructure of Hubei Province, providing a substantial baseload and peaking power source that supports industrial growth and urban consumption in the region. The dam was commissioned in 2008, marking a maturation of the Qingjiang cascade development, which aims to maximize the hydroelectric potential of the river system.

The engineering significance of the Shuibuya Dam also extends to its multi-purpose utility within the basin. While hydroelectricity is the primary driver, the structure is integral to flood control, a critical function in the variable climate of the Enshi region. By regulating the flow of the Qingjiang River, the dam mitigates downstream flooding risks, protecting agricultural lands and settlements in Badong County and beyond. Additionally, the reservoir created by the 233 m high embankment enhances navigation capabilities, allowing for more consistent water levels for river transport. The project also fosters local economic diversification through tourism and fishery development, leveraging the large surface area of the reservoir. This integrated approach demonstrates how large-scale hydroelectric infrastructure can serve as a multi-faceted engine for regional development, balancing energy production with ecological and economic stability in the Hubei Province landscape.

Construction History and Timeline

Construction of the Shuibuya Dam began with formal authorization in January 2002. The project involved significant logistical planning to manage the Qingjiang River's flow and the surrounding terrain in Badong County. By October 2002, engineers had successfully diverted the river, allowing for the primary embankment work to proceed. This early milestone was critical for establishing the foundation of the concrete-face rock-fill structure.

The physical construction of the dam reached its peak elevation on August 12, 2006. At this stage, the structure stood 233 m tall, eventually becoming the tallest concrete face rock-fill dam in the world. The rapid progress from river diversion to maximum height highlights the intensive engineering effort required for this hydroelectric facility.

Electrical generation commenced shortly after the structural completion. The first generator became operational in July 2007, marking the initial phase of power output for the Hubei Qingjiang Shuibuya Project Construction Company. The third generator followed in March 2008, expanding the plant's capacity. Final completion of the entire project was achieved in 2008, bringing the total installed capacity to 1840 MW.

Beyond the engineering metrics, the construction required substantial social adjustments. A total of 13,967 people were relocated to accommodate the reservoir and the dam's footprint. This relocation effort was a key component of the project's timeline, ensuring that the flood control and navigation benefits could be realized without displacing communities during the final operational phases.

Year Event
January 2002 Formal authorization of the Shuibuya Dam project
October 2002 River diversion completed
August 12, 2006 Dam reaches maximum height of 233 m
July 2007 First generator becomes operational
March 2008 Third generator becomes operational
2008 Final completion of the project

Engineering Specifications and Design

The dam contains a total volume of 15,640,000 m3 (20,460,000 cu yd) of material. The maximum height of the dam above sea level is 409 m, and the crest length extends for 660 m. This engineering design utilizes a concrete face over a rock-fill core to manage hydrostatic pressure and seepage, a configuration that allows for significant height while optimizing material usage compared to traditional concrete gravity dams.

Spillway Configuration

Flood control is a primary function of the Shuibuya Dam, supported by a bank-type spillway designed to handle substantial water discharge. The spillway is equipped with five gates, each measuring 14 m in width and 21.8 m in height. This configuration enables a maximum discharge capacity of 16,300 m3/s, ensuring effective water management during peak flow periods on the Qingjiang River. The bank-type design integrates the spillway into the natural topography, optimizing structural stability and flow dynamics.

Power Station and Turbines

The hydroelectric power station is situated in an underground cavern to maximize surface area for navigation, tourism, and fishery, which are additional purposes of the dam. The plant houses four turbine-generator units, each with a capacity of 460 MW, contributing to the project's total installed capacity of 1840 MW. The underground location protects the machinery from external environmental factors and allows for efficient penstock routing from the reservoir. The operational status of the plant is currently active, having been commissioned in 2008.

Technical Specification Value
Dam Type Concrete-face rock-fill embankment
Height 233 m (764 ft)
Crest Length 660 m
Volume of Material 15,640,000 m3 (20,460,000 cu yd)
Maximum Height Above Sea Level 409 m
Spillway Type Bank-type
Spillway Gates 5 gates (14 m x 21.8 m each)
Maximum Discharge 16,300 m3/s
Power Station Location Underground
Turbine Units 4 units
Unit Capacity 460 MW each
Total Installed Capacity 1840 MW
Commissioning Year 2008
Operator Hubei Qingjiang Shuibuya Project Construction Company

Who built and designed the Shuibuya Dam?

Design and Engineering

The engineering design of the Shuibuya Dam was led by the China Water Resources and Hydropower Consulting Engineers Corporation (CWRC). This organization was responsible for the structural and hydraulic specifications that enabled the dam to achieve its status as the tallest concrete face rock-fill dam in the world. The design process focused on optimizing the concrete-face rock-fill embankment structure to withstand the hydrostatic pressures of the Qingjiang River while maximizing the efficiency of the 1840 MW hydroelectric capacity. The structural integrity of the 233 m high dam relies on the precise engineering calculations provided by CWRC, which ensured the stability of the 15,640,000 m3 of material used in the construction. The design also incorporated features to support the dam's secondary purposes, including flood control, navigation, tourism, and fishery management in the Badong County region of Hubei Province.

Construction Consortium

The physical construction of the Shuibuya Dam was executed by a consortium of major Chinese engineering firms. The Hubei Qingjiang Shuibuya Project Construction Company served as the primary operator and construction manager for the project. This company coordinated the efforts of several specialized contractors to complete the massive infrastructure work. The Gezhouba Group Company was a key builder involved in the project, leveraging its extensive experience in Chinese hydroelectric infrastructure. The Jiangnan Water Resource & Hydropower Engineering Co. also contributed to the construction efforts, providing specialized engineering capabilities for the rock-fill embankment and concrete face installation. Additionally, the China Water Resource & Hydropower No. 14 Bureau played a significant role in the building phase, ensuring that the construction met the rigorous technical standards required for the dam's operational status. These organizations worked in tandem to complete the dam, which was commissioned in 2008.

Project Supervision

To ensure quality control and adherence to the engineering design, the Shuibuya Dam project was supervised by a panel of independent consultancy firms. The Huadong Hydropower Engineering Consultancy Co. was one of the primary supervising bodies, overseeing the construction progress and technical compliance. Zhongnan Co. also served as a supervisor, providing additional oversight of the project management and construction quality. The China Water Resource & Hydropower Engineering Consultancy further contributed to the supervision process, ensuring that the final structure aligned with the initial design parameters set by CWRC. This multi-layered supervision framework was critical in managing the complexities of building the world's tallest concrete face rock-fill dam, ensuring that the 1840 MW capacity and the 233 m height were achieved with minimal structural risk. The collaborative effort between the designers, builders, and supervisors resulted in a fully operational hydroelectric powerplant that continues to serve the energy and water management needs of the region.

Hydroelectric Operations and Capacity

The Shuibuya hydroelectric power station is the primary energy-generating component of the Shuibuya Dam complex on the Qingjiang River in Badong County, Enshi, Hubei Province, China. The facility is operated by the Hubei Qingjiang Shuibuya Project Construction Company and has been operational since its commissioning in 2008 (per Enipedia structured data). The power plant is characterized by its significant installed capacity and its unique underground structural design, which optimizes the use of the surrounding topography of the Enshi region.

Turbine Units and Installed Capacity

The hydroelectric station houses four turbine units, each with an individual capacity of 460 MW. These units collectively provide a total installed capacity of 1840 MW for the facility. The turbines are housed within an underground power plant, a design choice that integrates the machinery directly into the rock face of the dam structure. This underground configuration is typical for large-scale concrete-face rock-fill embankment dams, where the powerhouse is situated beneath the dam body or the adjacent valley walls to minimize surface footprint and structural load. The four 460 MW units represent the core generating assets of the project, converting the potential energy of the water stored behind the 233 m tall dam into electrical power for regional distribution.

Grid Integration and Regional Impact

The 1840 MW output of the Shuibuya Dam plays a substantial role in the energy grid of Hubei Province and the broader China region. As a major hydroelectric source, the plant contributes to the stability and capacity of the regional power network, providing a renewable energy counterweight to thermal generation sources. The operational status of the plant, confirmed as operational since 2008, ensures a consistent contribution to the provincial load. In addition to electricity generation, the dam’s operations support flood control, navigation, tourism, and fishery, indicating a multi-purpose infrastructure strategy that balances energy production with environmental and economic management of the Qingjiang River basin. The integration of these functions underscores the strategic importance of the Shuibuya project within China’s hydroelectric infrastructure landscape.

Regional Impact and Multipurpose Benefits

The Shuibuya Dam serves functions beyond power generation, providing critical infrastructure for flood control, navigation, tourism, and fishery development in the Qingjiang River basin. Located in Badong County within the Enshi region of Hubei Province, the structure’s 233 m height and 15,640,000 m3 volume significantly regulate river flow, mitigating seasonal flooding that historically affected downstream communities.

Flood Control and Navigation

As a concrete-face rock-fill embankment dam, Shuibuya stabilizes water levels on the Qingjiang River, enhancing navigability for vessels transporting goods and passengers. Improved navigation supports local trade routes, connecting Badong County to broader economic networks in Hubei. The dam’s reservoir capacity allows for strategic water release during peak flood seasons, reducing erosion and infrastructure damage in low-lying areas.

Tourism and Fishery Development

The reservoir created by the dam has become a focal point for regional tourism, attracting visitors to the scenic Enshi landscape. Water quality improvements and stabilized habitats support fishery activities, providing livelihoods for local communities. Recreational boating, fishing, and eco-tourism initiatives leverage the dam’s presence, contributing to Badong County’s economic diversification.

Social Impact: Relocation of 13,967 People

The construction of Shuibuya Dam necessitated the relocation of 13,967 residents from the reservoir’s inundation zone. This social disruption required coordinated efforts by the Hubei Qingjiang Shuibuya Project Construction Company to provide housing, employment opportunities, and infrastructure in resettlement areas. While relocation posed challenges, including cultural adaptation and land allocation, it also spurred urban development in Badong County, with new schools, roads, and markets established to accommodate displaced populations.

Overall, the dam’s multipurpose benefits underscore its role as a catalyst for regional growth in Enshi, balancing ecological management with socioeconomic progress. The integration of flood control, navigation, and tourism infrastructure has transformed the Qingjiang River into a multifaceted resource for Hubei Province.

See also