Issue Date - April 15, 2025
The new ERL is now live, and can be found at https://erl.iowadot.gov/.
The Legacy ERL is provided as a mobile-friendly version. The October 15, 2024 ERL has moved to the archive.
Browse ERL library
- Standard Specifications with GS-23004
- Supplemental Specifications
- Materials I.M.s
- Standard Road Plans
- Standard Culvert Plans
- Standard Bridge Plans
- Sign Truss Standards
- Flagger Training Website
- Intelligent Transportation Systems Standards The following are not Iowa DOT contract documents, but are provided for information purposes:
- Construction Manual
- SUDAS Standard Specifications