Spillway Gate Design

Spillway Gate Design & Supply — Reliable, Custom Hydraulic Gate Solutions

Our spillway gate designs provide precise water flow control and flood management for dams, reservoirs, and hydraulic engineering projects. Engineered for long-term durability and operational reliability, our solutions support a wide range of applications—from large flood-control dams and irrigation systems to hydropower stations and low-head water retention structures.

Our Spillway Gate Designs are crafted to provide optimal water flow control and management in various applications. Our innovative designs ensure durability and efficiency, making them ideal for flood control, irrigation, and hydroelectric systems. Trust our expertise to deliver spillway gate solutions that meet your specific needs and exceed industry standards. BIC mainly works in water conservancy, small-scale hydropower and water treatment fields, capable of undertaking turn-key projects including engineering investigation and design, construction, supervision, consulting and evaluation, monitoring and inspection, installation and commissioning.

Role and Importance of Spillway Gates

Gated spillways are essential for dam safety and water regulation. Compared with fixed weirs, spillway gates allow operators to:

· Adjust reservoir levels dynamically to prevent overtopping.
· Control discharge rates accurately during floods or seasonal regulation.
· Enable safe maintenance shutdowns by isolating flow when needed.
· Maximize reservoir storage while maintaining safe flood-release capacity.

As a result, spillway gate design is a critical engineering component in modern dam and water-management systems.

Types of Spillway Gates We Provide

We offer a comprehensive range of spillway gate types, each selected according to hydraulic conditions, head requirements, discharge capacity and site constraints.

Radial (Tainter) Gates

Curved gate leaves rotating around trunnions, ideal for high-flow spillways used in medium- and large-scale dams.

Vertical Lift Gates

Straight-panel gates that move vertically; suitable for installations requiring precise flow regulation and full closure capability.

Drum Gates

Commonly used in low-head dams, diversion weirs and urban engineering projects, with simple operation and minimal civil modifications.

Other Gate Types

· Slide / Sluice gates
· Flap gates
· Needle gates
· Fuse plug spillway components

This gate portfolio allows engineering teams to match gate characteristics with flow, safety and operational requirements.

Key Design and Structural Considerations

Our spillway gate solutions follow rigorous structural, mechanical and hydraulic design principles. Major considerations include:

Structural Steel Construction

Gate panels and ribs are welded and stiffened to transfer loads reliably. Built-up girders or curved ribs ensure resistance to water pressure and vibration.

Trunnion & Anchorage Systems

Trunnion bearings, anchor plates, and supporting concrete structures are engineered to withstand hydrostatic loads, fatigue cycles and seismic conditions.

Hoisting & Actuation Systems

We provide hydraulic cylinders, electromechanical hoists or cable-chain systems depending on site needs. Hydraulic systems are often selected for smooth, predictable and powerful operation.

Corrosion Protection & Sealing

High-performance coatings, anti-wear materials, stainless steel components and reliable sealing systems ensure long service life in harsh environments.

Maintainability & Safety

Designs integrate maintenance walkways, stoplogs, guides, lifting attachments, and modular components to simplify inspection, repair and overall lifecycle management.

Why Choose Our Spillway Gate Solutions

Fully Customizable Designs: Tailored to site headwater/tailwater conditions, discharge requirements, structural loads, and automation needs.
Engineering Through Delivery: We support survey, conceptual design, structural/hydraulic calculations, fabrication, installation, commissioning and after-sales service.
Hydraulic & Automation Integration: Optional systems include hydraulic actuation, SCADA connectivity, sensors, remote monitoring and automated flood control.
Long-Term Reliability: Durable materials, robust structural design, tight quality control and safety-oriented engineering ensure dependable performance.