Minnesota Department of Transportation

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Hydraulics and waterways

We provide statewide technical assistance for hydrologic and hydraulic analysis of streams, rivers, culverts, ponds and storm drainage systems.

Atlas 14

Find rainfall frequency estimates for Minnesota.

Drainage Manual

Our Drainage Manual contains design criteria and basic working knowledge of hydrology and hydraulic design for use in the design and evaluation of highway drainage features.

TAMS-HydInfra inspection

HydInfra is our culvert and storm drainage asset management system.

Bridge scour

Find forms, procedures and resources for scour critical bridges being monitored during flooding.