Technique for estimating depths of 100-year floods in Pennsylvania

Water-Resources Investigations Report 86-4195



Techniques are developed for estimating 100-year flood depths in natural channels of unregulated Pennsylvania streams that drain less than 2,200 square miles. Equations and graphs are presented relating the depth of the 100-year flood above median stage and drainage area in five defined hydrologic areas in the State. Another graph defines the relation between drainage area and median depth of flow over the low point of riffles. Thus 100-year depths on riffles can be estimated by summing depth values derived from two simple relations.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Technique for estimating depths of 100-year floods in Pennsylvania
Series title Water-Resources Investigations Report
Series number 86-4195
DOI 10.3133/wri864195
Year Published 1990
Language English
Publisher U.S. Geological Survey
Contributing office(s) Pennsylvania Water Science Center
Description Report: iv, 16 p.; 1 Plate: 21.38 x 16.49 inches
Country United States
State Pennsylvania
Online Only (Y/N) N
Additional Online Files (Y/N) N
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