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Erosion and Sediment Pollution Control Program Manual.pdf

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OPEN-TOP CULVERTS - <strong>Sediment</strong> Removal Efficiency: VERY LOW. This device is not an<br />

ABACT for special protection watersheds, but may be used to make other BMPs that are ABACT<br />

work more effectively. Open-top culverts may be used to intercept runoff from access or haul roads<br />

<strong>and</strong> divert it to well-vegetated (erosion resistant) areas or sediment removal facilities. Such culverts are<br />

typically more easily traversed than either waterbars or broad-based dips, but can require more<br />

maintenance if being crossed by heavy equipment or exposed to sediment-laden runoff. Open-top<br />

culverts are not acceptable for stream crossings <strong>and</strong> should not be used instead of pipe culverts.<br />

Spacing should be according to Table 3.2.<br />

Source Unknown<br />

363-2134-008 / March 31, 2012 / Page 26

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