Specifications include, but are not limited to: Post, Steel, I-Beam, hot-dip galvanized after drilling, W6 x 8½" x 7' long. Drill for use with wood offset block, per the attached terms, conditions, MDOT 2012 Standard Specification for Construction Section 908 and MDOT Standard Plans R60 Series (7'-0" Galvanized Guardrail Post for use with Thrie Beam Rail) Post, Steel, I-Beam, hot-dip galvanized after drilling, W6 x 8½" x 6' long. Drill for use with wood offset block, per the attached terms, conditions, MDOT 2012 Standard Specification for Construction Section 908 and MDOT Standard Plans R60 Series (6'-0" Galvanized Guardrail Post for use with W-Beam Rail) Post, Steel, I-Beam, hot-dip galvanized after drilling, W6 x 8½" x 8' long. Drill for use with wood offset block, per the attached terms, conditions, MDOT 2012 Standard Specification for Construction Section 908 and MDOT Standard Plans R60 Series (8'-0" Galvanized Guardrail Post for use with W-Beam or Thrie Beam Rail when the guardrail is placed at the shoulder hinge point).