Definition
A diverting reservoir is a water‑storage facility that is primarily intended to divert, regulate, or redirect water flow from a natural watercourse to another channel, irrigation system, hydro‑electric plant, or municipal supply. The term is used descriptively rather than as a formal classification in the engineering literature.
Overview
In practice, many reservoirs serve multiple functions, including flood control, water supply, recreation, and power generation. When the dominant operational purpose is to control the distribution of water rather than to retain it for long‑term storage, the reservoir may be described informally as a “diverting reservoir.” Such structures are often located at strategic points—such as near the headwaters of a river or at a confluence—where water can be efficiently routed through canals, pipelines, or penstocks.
Etymology/Origin
The phrase combines the verb divert, from Latin divertere (“to turn aside”), with reservoir, from French réservoir (derived from Latin reservare, “to keep back”). The compound likely emerged in technical discourse during the 20th century as water‑resource engineering terminology expanded.
Characteristics
Typical features associated with a diverting reservoir may include:
- Intake structures designed for controlled withdrawal of water.
- Spillways or overflow channels that manage excess flow while maintaining desired diversion rates.
- Low storage capacity relative to multipurpose reservoirs, emphasizing flow regulation over volume retention.
- Integration with conveyance infrastructure such as canals, tunnels, or penstocks that deliver water to downstream uses.
Because the term is not a standardized classification, specific design criteria can vary widely depending on the project’s objectives, geographic setting, and regulatory framework.
Related Topics
- Reservoir (general)
- Diversion dam
- Irrigation canal
- Hydroelectric power plant
- Water‑resource management
Accurate information is not confirmed that “diverting reservoir” constitutes a distinct, widely recognized category in engineering textbooks or official water‑resource glossaries. The description above reflects common usage of the phrase in technical contexts.