Friday, January 1, 2010

BMP Trivia Question

Wing ditches collect and direct road surface runoff from one or both sides of the road away from the roadway and into undisturbed areas. Generally, wing ditches should be located no more than ___ feet apart on sites where grades are between 2% and 5%. (Hint: refer to the BMP handbook for wing ditch spacing guidelines)

Click on "comments" below and post your answers.

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