Consultants & Contractors
Get resources, tools, and guidelines needed to collaborate with the Iowa DOT on a projects to build, maintain, and improve roads and infrastructure.
Services for Consultants & Contractors
-
Construction & Materials
Guidance on methods, materials, and compliance, ensuring your project meets all contract requirements.
-
Contracts
Letting information and contractor prequalification requirements.
-
Specifications
Construction and material specifications, standard specifications, general supplemental specifications, and ERL.
-
Design
Design manual, standard road plans, road design details, and other road design information.
-
Bridges & Structures
Bridge design policies and standards, automation tools, bridge maintenance and inspection manuals.
-
Right of Way
Right of way design, property appraisals, negotiations, relocations, property management, and utility coordination.
-
Traffic & Safety
Access management, advertising, traffic engineering, sign production, and transportation safety
-
Traffic Operations
Using technology like cameras and sensors to gather, analyze, and provide information to the traveling public.
Electronic Reference Library (ERL)
ERL contains the Construction Manual, Materials IMs, Specifications, Standard Plans, and other standards.
Access Current ERL
Issue Date - October 21, 2025
