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MNDOT Spec Wood Mulches: 

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MNDOT Type 5 Mulch*

"Provide Type 5 mulch with the following characteristics:

  1. (1)  Raw wood slash from hard or soft timber harvested during clearing and grubbing operations on the project;

  2. (2)  Product of a mechanical chipper, hammermill, or tub grinder;

  3. (3)  Maximum length of individual pieces shall not to exceed 20 in [500mm], and.

  4. (4)  Maximum width of individual pieces shall not exceed 2 in [50mm]. "

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"Provide mulch from a supplier outside of the Emerald Ash Borer quarantine areas or, if the mulch originates from within the quarantine areas, obtain a Compliance Agreement with the MDA. The Department will not allow mulch transported in or through a quarantine area to be transported outside the Emerald Ash Borer quarantine area without approval from the MDA. Find the quarantine area by contacting the MDA at 1-888-545- 6684 or visit the MDA Emerald Ash Borer website."

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MNDOT Type 6 Mulch* 

"Provide Type 6 mulch with the following characteristics:

  1. (1)  Raw wood material from hard or soft timber and that is the product of a mechanical chipper, hammermill, or tub

    grinder;

  2. (2)  Material is free of mold, dirt, sawdust, and deleterious material;

  3. (3)  Do not use wood material in an advanced state of decomposition, chipped-up manufactured boards or chemically

    treated wood; including wafer board, particle board, Chromated Copper Arsenate (CCA), or penta treated wood;

  4. (4)  Material is air dried;

  5. (5)  Do not allow unattached bark, green-leaf composition to exceed 20 percent by mass;

  6. (6)  Maximum length of individual pieces shall not to exceed 12 in [300 mm]; and

  7. (7)  Maximum width of individual pieces shall not to exceed 2 in [50mm]. "

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"Provide mulch from a supplier outside of the Emerald Ash Borer quarantine areas or, if the mulch originates from within the quarantine areas, obtain a Compliance Agreement with the MDA. The Department will not allow mulch transported in or through a quarantine area to be transported outside the Emerald Ash Borer quarantine area without approval from the MDA. Find the quarantine area by contacting the MDA at 1-888-545- 6684 or visit the MDA Emerald Ash Borer website. "

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*Source: http://www.dot.state.mn.us/pre-letting/spec/2016/2016specbook.pdf Pgs : 675-676

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Sylva Corporation, inc. is located in Sherburne and MilleLacs Counties. As of Jan. 1st, 2020 Sylva Corporation is located outside of the Emerald Ash Borer Quarantine area. Please call or email to get a quote for MNDOT Type 5 or MNDOT Type 6 Mulches. 

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