Sheetflow Erosion and Sediment Control

January 31, 2020

Asphalt Berm Water Diversion

July 20, 2019

Water-filled Diversion Berm

Photo: David Jenkins

I am always looking for products and materials that achieve the goal of environmentally friendly erosion controls, such as this reusable best management practice.

Specification
Materials

A. Berm shall be a minimum 6 inches high and 10 feet long and made of 10 mil polyurethane or 22 oz. PVC.

Construction Requirements
Water Filled Diversion Berms

a. Water filled diversion berms shall be installed such that offsite water is prevented from entering the job site and site water is kept within the project boundary.
b. Berms may be used to prevent contaminants and water from entering catch basins.
c. Berms may be used on impervious surfaces.

Payment
O. Payment for “TESC – Water Filled Diversion Berms” will be made at the contract unit price per each per month as stated in the Schedule of Unit Prices, and shall be full compensation for furnishing the specified diversion berms. The unit price per each shall include the cost of mobilization/demobilization, cleaning, hauling and all incidentals for the number of diversion berms required by the Engineer for the duration of the contract.

December 10, 2017

Extruded Asphalt Curbing as a Best Management Practice (BMP)

Here is an an example of extruded asphalt curbing being used as a barrier to keep storm water out of the construction area, on the left, and keep site water from flowing outside the project, to the right. In this case, the non-project water is dirtier because the paving is broken up and equipment is driving through muddy areas. The object of the construction project is to grind existing, poor, asphalt, rebuild the base using the ground asphalt, then lay new asphalt over the top. This is being done in phases to keep from opening up too much area as this work is being done in winter.

Click on the image for larger size.

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