---
title: "Westrich-Jurashek (1985) Total Load Equation | Sediment Transport"
slug: "westrich-jurashek-1985-total-load-equation"
description: "Find the Westrich-Jurashek (1985) total load equation."
tags: ["1D river modelling"]
updated: 2022-08-04T09:54:41Z
published: 2022-08-04T09:54:41Z
canonical: "help.floodmodeller.com/westrich-jurashek-1985-total-load-equation"
stale: true
---

> ## Documentation Index
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# Westrich-Jurashek (1985) Total Load Equation

The Westrich-Jurashek equation was developed from laboratory experiments on the transporting capacity of rigid boundary channels. Only fine sediments were used (0.026 to 0.11mm) in the experiments, which recorded the maximum transport without deposition on the channel bed. An energy balance equation was fitted to the results.

The equation is:

![image042(1).gif](https://cdn.document360.io/5074bc26-a9ef-4bf4-b1de-a5c6ce628aca/Images/Documentation/image042%281%29.gif) (9)

Where

Vs= settling velocity of the sediment particles (Other variables are as defined above.)

The applicability of the equation is limited to fine sediments and sediment transport over rigid boundaries.