Specifications include, but are not limited to: 1 The rails shall be Type II, Class “A” and shall conform to the specifications outlined by the following ALDOT Standard Specifications for Highway Construction: Section 630: Guardrail and Barrier Rail 2 (a) Class "A" guardrail shall be for roadways and shall require 12 gauge steel beam. (b) Class "B" guardrail shall be for bridges and shall require 10 gauge steel beam. (c) Type II guardrail shall require galvanized coating. Section 631: Guardrail and Barrier Rail Reset 3 (a) All products, materials and installation methods shall conform to the Alabama Department of Transportation Standard Specifications for Highway Construction, 2012 Edition. (b) Mix design, material inspection and test reports shall be available upon request.