Using ROWD Sled

Structural Calculations

The ROWD mobile dewatering sled is an alternative to conventional dewatering structures that are stationary. To determine the limits of the structural design an analysis of the critical components was performed. The structural analysis included evaluation of; the controlling vertical members, locking plate, and securing pins. In addition, 3D analysis of the long side gates, as a complete system, was conducted. For analysis the loading condition of the ROWD sled was evaluated completely full of water. Each structural component was observed to be within allowable stresses for A36 steel using ASD design methodology under the loading condition. Results indicate a minimum factor of safety equal to 1.5. The ROWD sled is safe to operate under conditions that are less than or equal to the extreme loading condition. Furthermore, these results are applicable regardless of ambient conditions the dewatering sled is exposed to.

ROWD Structure Analysis


Flow tests were performed on 2 degree and 5 degree slopes with a 3-inch trash pump and a 6-inch trash pump. The purpose of this test was to try and identify the max flow rate of a standard size ROWD sled on different slopes.


Tips for Using ROWD Sled

  • The two inlets are not for hooking up two pumps to one filter bag.
  • Largest optional filter bag is 4.5 feet x 16 feet for a standard-size ROWD sled.
  • Using filter fabric instead of Geotech allows water to filter through both the lower row and top row of bales. This is important on uneven ground.
  • Geotech or filter fabric can be precut to 12 feet x 24 feet for a standard ROWD sled.
  • Hang extra hose clamps, screwdriver or wrench on railing to connect filter bag.
  • Extra filter bags can be bagged and tied to back of ROWD sled.
  • Mulch top soil or right-of-way with spent bales to reduce waste.

Learn about ROWD and how to assemble the dewatering sled with the downloadable instructions below.