Ellicott City, Maryland suffered its second damaging “1,000-year” flood in two years last month.
The city is in a vulnerable location at the foot of a hill where river branches meet the Patapsco River. Another factor, a lot of impermeable concrete, exacerbated the flood.
Ellicott City has thrived in recent years with robust development. About one-third of the watershed that feeds into the historic community is now covered by roads, rooftops, sidewalks, and other hard surfaces.
Since the first major flood in 2016, the county has designed and engineered more stormwater retention facilities, but these projects will take time to implement. Across most of the U.S, impermeable surfaces make up just 1% percent of the land. In many cities, though, hardscapes account for 40% or more of the land area, leaving them vulnerable to floods.
Related Stories
| Dec 4, 2013
Philadelphia City Council mulling bill requiring ID cards for construction workers
The Philadelphia City Council has held a series of hearings on a bill aimed at boosting the city's safety regulations in the wake of a deadly building collapse earlier this year.
| Dec 4, 2013
Changes completed on 2015 IECC provisions
The 2015 International Energy Conservation Code (IECC)—the code that serves as the model for states’ codes—has undergone final changes.
| Dec 4, 2013
Design-build makes gains along with more authorizing legislation
In 2009, more legislation authorizing design-build project delivery passed than in any year in Design Build Institute of America’s history.
| Dec 4, 2013
Rotterdam resiliency policies include floating neighborhood
The low-lying city of Rotterdam in the Netherlands is a world leader in storm resiliency with policies that impact businesses, private homes, and public infrastructure.
| Dec 4, 2013
Meet the 'world's greenest building': One Angel Square
The 500,000 sf, 14-story One Angel Square in Manchester, England, is being promoted as "the most environmentally-friendly building in the world."
| Dec 3, 2013
Architects urge government to reform design-build contracting process
Current federal contracting laws are discouraging talented architects from competing for federal contracts, depriving government and, by inference, taxpayers of the best design expertise available, according to AIA testimony presented today on Capitol Hill.
| Nov 27, 2013
ASHRAE data center standard open for public review
Standard 90.4P, Energy Standard for Data Centers and Telecommunications Buildings, is being developed in response to requests to recognize the energy performance profiles unique to data centers.
| Nov 27, 2013
Ohio legislators move to ban use of LEED on public construction
Two Ohio state senators have introduced legislation that seeks to ban the use of LEED in public construction.
| Nov 27, 2013
ASTM issues revised standard on phase I environmental site assessments
ASTM has issued revised standard ASTM E1527-13 that governs phase I environmental site assessments.
| Nov 27, 2013
Vancouver, B.C., bans doorknobs in building code update
The goal of making it easier for people to age in place led to amendments to Vancouver, B.C.’s building code including banning doorknobs in favor of lever handles.
