Natural solutions would be most effective flood resilience policies for Houston

Several articles with recommendations about what Houston can do to become more flood-resilient have emerged since Hurricane Harvey struck.

The keys, say experts, are better land use planning and more green infrastructure. Above all, the city should acknowledge that more floods are likely and plan accordingly.

Officials have encouraged development, even in low-lying areas, as an engine of economic growth. Instead, the city should consider more initiatives such as a planned buyout of two low-income apartment complexes so that the area can be repurposed as a flood basin that doubles as a park.

Harris County, which includes Houston, should limit new development in remaining wetlands and prairies to preserve water-absorbing acreage. New approaches to building design could also make a difference.

For example, a new hospital in Corpus Christi, a city which was also struck by Harvey, includes oversized roof drains, space for food and water storage for four days, emergency generators that can provide power for five days, and hurricane-resistant exterior materials. Green roofs and rain gardens, both cost-effective features, could also have a measurable impact if deployed at scale.

New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.