Aluminum Box Culvert with Headwalls and Aluminum Box Culvert conforming to the NCDOT 2024 Standard Specifications for Roads and Structures, and any addenda thereto. All structures must be inspected, approved, and stamped by an NCDOT Materials & Test inspector. https://connect.ncdot.gov/resources/Specifications/2024StandardSpecifications/2024%20Standard%20Specifications%20f or%20Roads%20and%20Structures.pdf ; For a list of approved Producers/Suppliers go to https://apps.ncdot.gov/vendor/approvedproducts/Producer.aspx ; Materials covered by Section 1032 that are shop and/or field welded require notification to the M&T Metals group. Producer/Suppliers can use the Notification for Beginning of Work Form which can be found on the Materials and Tests Unit webpage at the below weblink: https://connect.ncdot.gov/resources/Materials/MaterialsResources/MT%20Form%20M4000%20Notification%20of%20Be ginning%20Work.pdf
