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<br />. precipitation, rainfall losses, and flood routing. PMP/PMF estimates are based on transposition and <br />theoretical maximization of distance extreme storms for which there is no supporting rainfall, streamflow, or <br />paleoflood data in ~ basin investigated in northwestern Colorado, Paleoflood estimates for mountain <br />rivers have uncertainties of about 25 percent given the HWM-PSI relations developed in 1995. New <br />insight of the hydrometeorology of flooding gained from interdisciplinary paleoflood investigations improves <br />flood-frequency relations by providing data on the magnitude and ages of maximum floods. Inferences <br />about maximum precipitation characteristics can then be made from paleoflood data. These results provide <br />infoflllation that can be used by dam-safety engineers and managers to help make a risk-based approach <br />for hydrologic aspects of dam safety, <br /> <br />REFERENCES <br /> <br />Anderson, M.T., Graf, J's., and Marzolf, G.F., 1996, Controlled flooding of the Colorado River in Grand <br />Canyon; the rationale and data-collection planned: U,S. Geological Survey Fact Sheet-089-96, 2 p. <br />Baker, V.R., Kochel, R.C., and Patton, P.C., (eds.), 1988, Flood Geomorphology: New York, John <br />Wiley, 503 p. <br />Baker, V.R., 1987, Paleoflood hydrology and extraordinary flood events: Journal of Hydrology, v. 6, <br />no. 1-4, p. 79-99. <br />Baker, V.R., 1994, Geomorphological understanding of floods: Geomorphology, v. 10, p. 139-156, <br />. Barnes, H.H., Jr., and Davidian, Jacob, 1978, Indirect methods, in Hershey, R.W., ed., Hydrometry-- <br />Principles and Practices: New York, John Wiley, p, 189-190. <br />Birkeland, P.W., 1984, Soils and geomorphology: New York, Oxford University Press, 372 p, <br />Boner, F.C., and Stermitz, Frank, 1967. Floods of June 1964 in northwestern Montana: U.S. Geol. <br />Surv, Water Supply Paper 1840-B, 242 p. <br />Boyle Engineering Corporation, 1990: Ritschard Dam Hydrology Report, Wolford Mountain Project, <br />Prepared for the Colorado River Water Conservation District. <br />Boyle Engineering Corporation, 1994: Ritschard Dam Hydrology Report, Wolford Mountain Project, <br />Prepared for the Colorado River Water Conservation District. <br />Brien, D., in press, Paleoflood and streamflow data to describe the spatial occurrence of rainfall and <br />snowmelt floods in Wyoming: M.S. thesis, University of Wyoming, Laramie. <br />Buckley, J.L, 1995, Evaluation of design criteria for hazardous dams, University of Wyoming <br />unpublished thesis, 93 p, <br />Bullard, KL, 1986, Comparison of estimated maximum flood peaks with historic floods: Bureau of <br />Reclamation, Denver, Colorado, 165 p. <br />Butler, DL, 1990, Estimated water-quality conditions and potential downstream channel effects of the <br />proposed Rock Creek and Wolford Mountain Reservoirs, North-Central Colorado: U.S, Geological <br />Survey Water-Resources Investigations Report 89-4177,101 p. <br />Changnon, David, and McKee, T.B., 1986, Economic impacts and analysis methods of extreme <br />. precipitation estimates for Eastern Colorado: Cooperative Institute for Research in the Atmosphere, <br />Colorado State University, CIRA Paper No, 5, 75 p, <br /> <br />35 <br />