UDCE’s work focused on all facets of stormwater management including channel modeling, GPS/ California Coordinate System conversions, stormwater reports, and sustainable solutions for the Doyle Drive Replacement/ Presidio Parkway project - the 1.5 mile corridor extending from the Golden Gate Bridge Toll Plaza on the west to Broderick Street on the east.

Originally constructed in 1936, Doyle Drive needed design, seismic and traffic safety improvements. The project faced several significant challenges: highly variable and poor geologic conditions in an active seismic setting, preserving the natural and historical Presidio resources, providing extensive public outreach and inter-agency coordination for a large group of stakeholders and removing and replacing the existing facility while maintaining traffic during construction.