Crash Cushions must meet the requirements of the Specifications for Crash Cushions.
Application for approval shall be sent to the Methods Engineer in the Iowa DOTís Office of Design (515-239-1402). All product manuals, specifications and brochures along with correspondence indicating compliance with the Specifications for Crash Cushions shall be submitted. Samples of materials may also be requested. The Methods Engineer will evaluate the application and determine whether the product is to be approved.† Approved products are listed in the Materials Approved Products Listing Enterprise. (MAPLE) Details for when, where and how to use each product are in https://maple.iowadot.gov/files/455aa.pdf.
Acceptance of Crash Cushions will be on the basis of approved sources and brand names. If this brand name is not clearly evident on the product, a certification shall be furnished from the manufacturer.