Table of Approved Substitutes For MDOT SHA Standards

Category 3 - Drainage

Drawings for all Approved Substitutes may be obtained through the manufacturers.

• ADVANCED DRAINAGE STRUCTURES, INC. (PDF, 35 kb)
• AMERICAST / A Division of VALLEY BLOX, INC. (PDF, 79 kb)
• ATLANTIC PRECAST INDUSTRIES (PDF, 33 kb)
• CONTRACTORS PRECAST CORPORATION (PDF, 82 kb)
• EJ COMPANY (PDF, 1.0 mb)
• FREDERICK PRECAST CONCRETE, INC. (PDF, 78 kb)
• GILLESPIE PRECAST, LLC (PDF, 43 kb)
• HANSON CONCRETE PRODUCTS (PDF, 82 kb)
• MAYER BROTHERS, INC. (PDF, 67 kb)
• OLDCASTLE PRECAST (PDF, 43 kb)
• TERRE HILL CONCRETE PRODUCTS (PDF, 82 kb)

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