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Delaware Department of Transportation

Stormwater Management

Map Viewer

The NPDES Map Viewer v3.0 is the primary tool to view and query DelDOT's stormwater inventory, including structures, conveyances, stormwater management facilities (BMPs) and related data. The tool provides advanced query and reporting capabilities. Data is sourced from complex field inventory processes and is noneditable for the majority of users.

Access the Map Viewer

First time users must create a login. Also, first time users are encouraged to listen to the training videos. The trainings explain and demonstrate key points in the User Guide.

User Guides

Training Videos

Create Account

Change and Forgot Password

Webpage Layout

Table of Contents

Map Navigation and Select by Map

Geographic Filter

Advanced Query

Actions, Reports, and Attachments

Identify Tool

Address Locator

Measurement Tool and Draw Graphics

Export Map to PDF

 ADA Information