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Electronic Reference Library (ERL)
The ERL contains the following resources:
Construction Manual
Flagger's Handbook
Materials IMs
Specifications
Standard Plans
The Materials IMs contain approved material sources, procedures, supplies, and fabricators.



Doc Express Instruction Guide for Contractors and Suppliers - updated June 2015
Construction and Materials building

Office of Construction and Materials

Iowa Department of Transportation
800 Lincoln Way
Ames, IA 50010

Phone: 515-239-1352
Fax: 515-239-1092
Email: central.construction@dot.iowa.gov