If you are having issues with your LOGIN TO SIIMS, there was a recent change to new usernames and a different authentication process.  

Please send an e-mail to siims.support@iowadot.us for assistance.

In order to have an accurate 2022 inventory for the NBI submittal, replaced or removed structures are not archived from now until the submittal is complete.

These structures will be removed from the SIIMS inventory shortly after a valid tape is submitted.

Although notifications regarding the replaced or removed structures cannot be eliminated, these are not a concern during this time frame and will be properly handled by Iowa DOT personnel.

The Iowa Department of Transportation's (DOT) Structure Inventory and Inspection Management System (SIIMS) system is the single source location for entering and reviewing condition information on all Iowa bridges, both local and state owned. The system offers a variety of features and capabilities.