Dan's time is divided between three primary tasks involving hydrology and hydraulic engineering: advising and assisting NRCS state offices with projects, developing software to assist project planners and engineers, and participating in a professional cadre to provide training in the many river and watershed related courses offered by NRCS.
A 1980 graduate of Georgia Tech in Civil Engineering, Dan began his career working for Boeing in Seattle as a structural engineer on the 767 commercial aircraft. Having also worked for the Corps of Engineers in Memphis Tennessee as a co-op student in hydraulics, he returned to the Corps in Los Angeles in 1984. Including a one-year stint as a Regional Hydraulic Engineer with the Federal Highway Administration, Dan now has over 25 years of experience in hydraulics and hydrology, and holds a professional engineering license for the states of California and Oregon.
Dan's technical work with the Corps included flood analyses, such as 100-year floodplain determination for the Los Angeles River through the San Gabriel Valley urban area. He designed an innovative flood protection barrier to protect Redlands CA from boulder-laden floods coming down out of the steep San Bernardino Mountains. He analyzed the tide-influenced system of canals and pump stations draining the floodprone coastal city of Huntington Beach.
Joining SCS in Portland in 1991, Dan has been the Columbia River Basin river flow forecaster, which included snowpack analysis for over 180 river gages. His current activities include technical development of the watershed model AGNPS. He added a major model enhancement, enabling snowpack accumulation and melt, as well as the freeze-thaw process in soil. He serves on the HecRas support team, providing training and project support. Dan has also been upgrading the climate data generation model GEM6.
As backpacking is one of Dan's favorite activities, he is pictured at right, in the Grand Canyon. The camera is pointing north and the background smoke comes from forest fires in Southern Utah. The canyon creates its own microclimate, and turnover of the within-canyon airmass due to diurnal flux of temperature would push the smoke out by 10 am, only to return each evening.
< Back to the Water Quality & Quantity Team Contacts