Lydia Maren Holt

Lydia Maren Holt

@lydia_dcwatershed

Urban water planner in Washington, D.C., exploring how small infrastructure choices shape healthier neighborhoods. I collect repair notes, trail maps, and questions worth asking twice, with a soft sp...

Recent posts

How blue green roofs can manage stormwater

Could rooftops become part of a city’s drainage system? Amsterdam is testing a useful shift in perspective: a roof does not have to be a passive surface that sends every drop of rain toward the nearest gutter. Blue-green roofs can hold wat...

Philadelphia green infrastructure lessons for cities

A Useful Lesson from Philadelphia’s Rainwater Streets This short video on Philadelphia’s Green City, Clean Waters program shows stormwater infrastructure doing several jobs at once: slowing runoff, filtering pollutants, and reducing pressu...