Office of Bridges and Structures
Find the design manual, automation tools and consultant/designer resources.
Office of Contracts
The Office of Contracts is at the focal point where all of the preletting activities converge so contracting can take place for construction.
Office of Design
The Office of Design provides road design manuals, CADD drawings and standard drawings for consultants and designers working with the Iowa DOT.
Office of Local Systems
Find local jurisdiction information, street finance report, utility coordination and accommodation and federal-aid guides.
Office of Location and Environment
OLE combines expertise from the engineering, environmental, historical, and scientific fields to help design road projects. OLE evaluates problem areas, proposes solutions and then works together to select the best option.
Office of Maintenance
Find information about Iowa DOT rest areas, snow plows, winter operations, winter driving tips, snow removal, snow fence, Weatherview, and salt and abrasive use.
Office of Right of Way
Find manuals, brochures, CADD information and property sales.
Office of Traffic and Safety
Search Iowa-led pooled fund studies, IHRB reports, current ITS activities and more.
Explore standard specifications for highway and bridge construction, and the Electronic Reference Library.
Disadvantaged Business Enterprise (DBE) Program
Title VI home
Title VI of the Civil Rights Act of 1964 is the federal law that protects individuals and groups from discrimination on the basis of their race, color and national origin in programs and activities that receive federal financial assistance.
English bridge standards
MicroStation V8 English bridge standards
English county bridge standards
Access the MicroStation V8 English county bridge standards.
English precast culvert standards
Access the MicroStation V8 English precast culvert standards.
English sign truss standards
Access the MicroStation V8 English sign truss standards.
LRFD English culvert standards
Access the MicroStation V8 LRFD English culvert standards.
LRFD precast culvert standards
Access the LRFD precast culvert standards.
Road design details
The design details contained in this manual (commonly referred to as the "Green Book") have been developed to aid the designer in the development of detailed design plans for interstate and primary road construction in the state of Iowa.
Standard road plans
The standard road plans contained in this manual (commonly referred to as the "Red Book") have been developed to show standardized design features, construction methods and approved materials to be used in design plans for interstate, primary and secondary road construction in the state of Iowa.