From some of the same folks who brought you those fun-with-worst-case-scenarios hurricane flood maps earlier this year — Neena Satija and Kiah Collier of the Texas Tribune, and Al Shaw of ProPublica — comes a fresh set of animated maps of a few of Harris County’s most flooded and floodable places, along with a bit of investigation into how they got that way (and whether that might change any time soon). The new illustrated presentation shows off the spread of properties that took a dip during some of Harris County’s last few citywide submersion events (flooded properties from Tax Day 2016 are shown in yellow above, along with the Memorial Day 2015 flooded properties in orange).
Texas A&M Galveston researcher Sam Brody tells the authors that “more people die here than anywhere else from floods. More property per capita is lost here. And the problem’s getting worse.” In sorting through some of the whos, whats, and hows of Harris County’s flood infrastructure and chronically soggy residents, the article juxtaposes the recent flood damage data with the likes of FEMA-mapped 100- and 500-year flood zones (shown above), a visual tally of the land area developed last decade, and a view of what’s left of Houston’s coastal prairie (as of 2010):