Weir Channels by Openchannelflow offer a drop-in-place solution to the problem of measuring flows in creeks, small streams, canals, and channels.

We’ve taken our experience with weir boxes / weir plates and combined it with the ease of installation of our Packaged Fiberglass Weir Manholes to create a product that is unique in the marketplace. By integrating our field removable/replaceable ISO/DIS 1438:2008 compliant sharp-crested, thin-plate weirs, with pre-engineered channels, Openchannelflow Weir Channels provide not only accurate flow measurement, but also operator safety, convenience, customization, and ease-of-use/installation.

Installation can be accomplished with either traditional anchor clips secured to earth anchors or the Weir Channel can be secured off-site to a pre-cast concrete slab for a true, no-hassle installation.

Weir Channel options

• Interchangeable weir plates (30° V, 60° V, 90° V, 120° V, and Cipolletti plates)
• (6) different channel widths / depths to choose from
• Flow meter sensor mounts
• Staff/level gauges (dual feet and meter increments)
• Upstream conditioning and diversion structures
• Flow straighteners
• Tranquilizing racks
• Slide gates
• Wing walls
• Operator platforms
• Recessed fiberglass grating
• Stainless steel hand rails

With Weir Channels from Openchannelflow, you get accurate flow measurement in an operator-friendly and easy to install factory-integrated package.