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U.S. Geological Survey Resources
Data and Reports
I. Rural Regression Equations
USGS Hydrologic Regions NC Map
USGS Magnitude and Frequency of Rural Floods in the Southeastern US (Excel Spreadsheet)
USGS SIR 2009-5158 Volume 2 of 3 - for NC
II. Urban Regression Equations
Estimating flood hydrographs for urban basins in NC USGS WRI 96-4085
Estimation of flood-frequency characteristics of small urban streams in NC USGS WRI-96-4084
Methods for Estimating the Magnitude and Frequency of Floods for Urban and Small, Rural Streams in Georgia, South Carolina, and North Carolina, 2011
The National Flood-Frequency Program - Methods for Estimating Flood Magnitude and Frequency
III. Other USGS Data
Drainage Areas of Selected Sites by Quadrangle
Flood-Frequency Statistics USGS Gaged Sites
Flow-velocity and depth data during peak discharge events
Low-flow characteristics of streams in NC - Giese and Mason 1993
Mean Annual Runoff Map - Plate 2
USGS Drainage Areas of Selected Sites on Streams in North Carolina
USGS National Water Informatiom System - NWIS
USGS StreamStats NC
Hydraulics Resources
Consultant Resources for Hydraulics
Guidelines for Drainage Studies
Guidance in the methods, procedures, policies, and criteria for Drainage Studies and Hydraulic Design.
Highway Floodplain Program
Floodplain guidance, FEMA coordination, forms, submittals, requests and other resources.
Highway Stormwater Program
Highway Stormwater Program products and useful links
Hurricane Florence
Data and resources regarding about Hurricane Florence
Hydraulic Forms and Checklists
Forms, Checklists and Resources
Hydraulic Unit Announcement Notifications
Sign up here to receive email notifications on Hydraulic Unit updates and announcements
Resources for Geopak Drainage
Guidelines and instructions for Geopak Applications.
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