Technical information

In this section, you will find reams of technical data regarding flooding and flood projects and real-time gauge measurements.

Measures and readings includes data from the ALERT Hydrologic Data Collection System. ALERT is an acronym for Automated Local Evaluation in Real Time. Gauges installed all around the county generate data on reservoir levels, precipitation and stream flows.

The Hydrologic Engineering Center library provides flood insurance study data on specific creeks.

Technical reports is an index of many reports available on this Web site.

The GIS Data Download page is a tool to preview metadata and download District geographic-based information.

Vertical Control Network Search provides FEMA approved elevation information throughout the county. Download a detailed report with elevation information. Search by ZIP code, street address, parcel number, street intersection or by Benchmark ID Number.