Category Archives: Floods

River flooding in Southern and Central U.S.

A deadly storm system pummeled the southern and central U.S. this weekend leaving many areas flooded. The weather system extended from the Canadian Maritime provinces to Texas, and brought gale force winds and widespread flooding from the northern Midwest through Appalachia.

Flooding will continue to be a threat this week, the Weather Channel reports, as more than 200 river gauges reported levels above flood stage from the Great Lakes to eastern Texas. Floodwaters on the Ohio River in Louisville and Cincinnati are at their highest level in about 20 years.

Flood damage is excluded under standard homeowners and renters insurance policies. However, flood coverage is available in the form of a separate policy both from the National Flood Insurance Program (NFIP) and from a few private insurers.

Below is a look at the National Flood Insurance Program’s flood insurance penetration rates in just a few of the affected areas. The table illustrates the low penetration rates of flood insurance.

(click on table to enlarge)

 

 

Adapting to flooding with amphibious architecture

The New Yorker magazine reported recently on the work of the Buoyant Foundation Project, an organization that provides architectural flood mitigation solutions for vulnerable populations.

Amphibious architecture allows an otherwise-ordinary structure to float on the surface of rising floodwater. An amphibious foundation retains a home’s connection to the ground by resting firmly on the earth under usual circumstances, but allows a house to float when flooding occurs.

A buoyant foundation is specifically designed to be retrofitted to an existing house that is already slightly elevated off the ground and supported on short piers.  Under the house the foundation’s buoyancy blocks provide flotation, vertical guideposts prevent the house from floating away, and a frame ties everything together.  Any house that can be elevated can be made amphibious.

Amphibious retrofitting has not yet gained widespread acceptance, and buildings with amphibious foundations are not eligible for subsidized policies offered by the National Flood Insurance Program.