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
Codes and Standards | Jun 15, 2020
Workers want policy changes before they return to offices
More office cleaning, work from home opportunities, and staying home when sick among the desired adjustments.
Codes and Standards | Jun 12, 2020
Carbon emission legislation prompts commercial real estate to innovate
Mass timber, augmented reality, and modular construction among the trends.
Codes and Standards | Jun 11, 2020
USGBC offers new pilot credit to address green cleaning and COVID-19
Provides guidance on cleaning and disinfecting buildings using green cleaning best practices.
Codes and Standards | Jun 10, 2020
AIA issues tools for reducing risk of COVID-19 transmission in buildings
Tailored strategies offered for offices, retailers, schools, and senior living facilities.
Codes and Standards | Jun 8, 2020
OSHA construction safety inspections fall 84% during COVID-19 pandemic
Agency focuses on preventing disease transmission in healthcare industry.
Codes and Standards | Jun 8, 2020
5 must reads for the AEC industry today: June 8, 2020
Frank Lloyd Wright sites set to reopen and construction jobs rise by 464,000.
Codes and Standards | Jun 8, 2020
Reopened offices raise liability risk for businesses and owners
Risks may not be covered by property insurance.
Codes and Standards | Jun 4, 2020
American Wood Council updates report on fire resistance of wood members and assemblies
Provides new examples and background on mass timber calculations.
Codes and Standards | Jun 3, 2020
Virginia makes GCs liable for subs employee wages
New law allows workers to sue GCs for wages in class action.
Codes and Standards | Jun 2, 2020
Designers, owners reinventing restaurants to cope with COVID-19
Options include rearranged seating, mobile ordering, designated flow spaces.
