flexiblefullpage
billboard
interstitial1
catfish1
Currently Reading

Hardscape from development makes ‘1,000-year’ flood in Maryland worse

Codes and Standards

Hardscape from development makes ‘1,000-year’ flood in Maryland worse

Impermeable concrete made it easier for water to overwhelm drainage system.


By Peter Fabris, Contributing Editor | June 14, 2018

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

| May 31, 2012

Natural gas industry opposes federal carbon-neutral construction rule

The natural gas industry and some allies are working to block a federal green building rule that was expected to be a national model for carbon-neutral construction.

| May 31, 2012

Lawsuits push the legal boundaries of green building definition

This article explores some legal issues stemming from lawsuits in which plaintiffs have charged developers with not delivering on a promised level of sustainability.  

| May 31, 2012

ANSI approves Green Building Initiative’s design standard

The Green Building Initiative (GBI), a Portland, Ore. nonprofit organization, has had its new consensus-based standard for the design, construction, and operations of environmentally friendly buildings approved by the American National Standards Institute (ANSI).

| May 31, 2012

USGBC testing Minnesota buildings to see if they are living up to LEED standards

The Minnesota chapter of the U.S. Green Building Council (USGBC) has teamed up with EnergyPrint, a St. Paul, Minn. energy consulting firm, to study the energy and water use of more than 150 buildings in the state that have LEED certification.

| May 29, 2012

Reconstruction Awards Entry Information

Download a PDF of the Entry Information at the bottom of this page.

| May 25, 2012

Major retail chains welcome LEED Volume option

Large national chains such as Starbucks, Marriott, Verizon, and Kohl’s are welcoming the LEED Volume Program that enables them to batch certify similar projects.

| May 25, 2012

Alaska’s okay of gravel aggregate with naturally occurring asbestos opens up development

Some long-delayed projects in the Upper Kobuk region of Alaska may now move forward thanks to legislation that allows construction in areas that have naturally occurring asbestos.

| May 25, 2012

Las Vegas building codes may thwart innovative shipping container development

A developer wants to build a commercial development out of steel shipping containers in Las Vegas, but city codes would have to be altered or the project would have to obtain waivers for it to receive the city’s go-ahead.

| May 25, 2012

Collapse of Brooklyn building that killed worker blamed on improperly braced frame

The Occupational Safety and Health Administration cited SP&K Construction with 11 safety violations, for which it could face more than $77,000 in fines.

boombox1
boombox2
native1

More In Category




halfpage1

Most Popular Content

  1. 2021 Giants 400 Report
  2. Top 150 Architecture Firms for 2019
  3. 13 projects that represent the future of affordable housing
  4. Sagrada Familia completion date pushed back due to coronavirus
  5. Top 160 Architecture Firms 2021