Erosion control products shall meet the requirements of applicable Iowa Department of Transportation Specifications. Mats containing straw will be allowed for the protection of slopes only, and not for ditches.
Acceptance of erosion control products for use on Iowa Department of Transportation projects will be on the basis of manufacturer and brand name approval.
Approved manufacturers and products are listed in the Materials Approved Products Listing Enterprise. (MAPLE)
To obtain approval, the manufacturer shall submit the following to the Materials Office in Ames, Iowa:
1. Product identification including brand name and product number
2. A sample suitable for testing may be requested by the Office of Materials.
3. The NTPEP test data for products covered by NTPEP.
4. Company information with list of contact personnel and any available product literature.
The Office of Materials may sample and test erosion control products to verify compliance with specifications.