FLOOD07843

• County: Statewide
• Basin: Statewide
• Title: Nationwide Summary of US Geological Survey Regional Regression Equations for Estimating Magnitude and Frequency of Floods or Ungaged Ssites 1993
• Date: 1/1/1993
• Prepared By: USGS
• Floodplain - Doc Type: Educational/Technical/Reference Information

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Q2 = 0.0504 A 0806p1.87
Q5 = 0.229 AO,777 pU5
QIO = 0.487 AO,76Op1.40

Q25 = 1.06 A 0.742 p1.25
Q50 = 1.75 A 0,730 p1.l6
Q100= 2,71 AO,719 pl.07
Q200= 4.01 AO.70S pl.OO
Q500= 6.40 AO,695 pO.918

Rio Grande Region

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EXPLANATION

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Regional boundary

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Plains Region

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100 KILOMETERS

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Digital base from U.S, Geological Survey 1:2.000,000,1970
....bra equal-area pro}ectlon based on stanclard paraOels 29.5 and 45.5 dBgrees

Figure 1. Flood-frequency region map for Colorado.

40 Natlonwlda Summary 01 u.S. Geological Survey Regional Regreealon Equatlonetor estimating Magnitude and Frequency 01
Flooda lor Ungaged SIIa8, 1993