Modeling the impact of development policies and climate on suburban watershed hydrology near Portland, Oregon

•We co-developed 50-year suburban growth scenarios with stakeholders and simulated watershed response.•Development reduced evapotranspiration and increased streamflow in all scenarios.•Condensed development patterns that preserved forests had the least hydrologic impact.•LID controlsincreased infiltrationbut had minimal effecton watershed hydrology.•Effects of development overwhelmed effects of a warming climate on watershed hydrology.