Emriver Em4
Stream Table

A robust, modular geomorphological research system capable of simulating floodplains, deltas, groundwater processes, and sediment transport.

Em4 specifications

Box 3.7 m x 1.2 m (12 ft x 3.9 ft);

Model footprint 4.22 m x 1.27 m (166 in x 50 in)

Portability Moveable, but not easily portable
Water 265 L (70 gal)
Media Amount 163 kg (360 lb)
Media Type Color-coded
Base Options Static, single, and dual-tilt
System Also Includes Reservoirs, pump, power supply, flow controller. Modeling accessories: measuring tape, quartz and plastic stones and rocks, acrylic shapes to simulate culverts, plastic vegetation, dye injection bottles for visualizing flow, scoops, and scrapers. User and laboratory manual, river geomorphology DVD.
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We had a great first class with our Em4. It was a hit with the students, best hydraulic lab by a mile. A couple of them thought it was coolest lab yet at GWU.

Owen Scholl

High Bay Manager, George Washington University

UPGRADES - Modular options that can be added at any time.

See the Applications for Science and Teaching pages for examples of how to use the Em4.


We have been very happy with our Em4 model since the day it arrived at BYU. We use it in beginning and upper division-level classes in geological sciences and civil engineering. The model is diverse and representative enough of many different aspects of stream and delta systems that students of all levels are engaged.

We keep the table in a prominent location in the lab section of our building, and many students are intrigued and inspired by it and often spend time outside of their scheduled labs to work with the table.

The lower-density media makes the table a good analogue for sediment transport on other planetary bodies, and some students have approached research projects for courses or their MS theses using the stream table.

We are so happy to have the Em4 and feel it helps to elevate our department’s educational and research profile. We recommend this product to anyone engaged in teaching or researching river processes.

Jani Radebaugh

Associate Professor, Department of Geological Sciences, Brigham Young University

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