Geosense V-Notch Weirs and Tanks measure seepage water flows in open streams, channels or tanks as part of dam monitoring programs. Learn more here.

V notch weirs really are just that – a thin plate weir with a ‘V’ notch cut into it. The weir is placed to obstruct open channel flow and allow water to flow over the notch. This enables us to accurately measure the flow, by measuring the head upstream of the V notch.

The model ESM-10 V-notch weir is an integral part of a seepage monitoring system. It is designed to measure water seepage through, around, or under a dam in earth or concrete dams. It is one of the oldest, simplest, and most reliable devices used to measure the quantity of water flow.

Rectangular weirs and triangular or v-notch weirs are often used in water supply, wastewater and sewage systems. They consist of a sharp edged plate with a rectangular, triangular or v-notch profile for the water flow. Broad-crested weirs can be observed in dam spillways where the broad edge is beneath the water surface across the entire stream.

Geosense® V-Notch Weirs and Tanks are used to measure seepage water flows in open streams, channels or tanks and are used mainly as part of Dam Safety Monitoring programs.

A v notch weir is simply a ‘v notch’ in a plate that is placed so that it obstructs an open channel flow, causing the water to flow over the v notch. It is used to meter flow of water in the channel, by measuring the head of water over the v notch crest.

Water flow monitoring in open channels is widely employed in environmental and geotechnical field. Leakage measurement is one of the most important indicator of the overall performance of earth/rock-fill and concrete dam.

These plates are designed to measure seepage water flows in channels or tanks. Triangular weirs are sharp crested thin plates with V-shaped opening (or notch). These plates are installed at the exit of a channel, tank, or basin in order to measure the real-time flow of water.

This document summarizes an experiment on measuring the discharge coefficient of a V-notch weir. It includes: 1. An introduction describing V-notch weirs, their principle of operation, applications, advantages and disadvantages.

The model ESM-10 V-notch weir is an integral part of seepage monitoring system. It is designed to measure seepage of water through, around or under a dam in earth as well as concrete dams. It is one of the oldest, simplest and the most reliable device used …