Fairfax County, Va., considers impactful code change to reduce flood risk

Fairfax County, Va., in the Washington, D.C., metro region is considering a major code change to reduce the risk from floods.

The county is reviewing a proposal to base codes on 100-year storms instead of current 10-year storms. County staff cited the elevated risk of flooding in the county due to climate change as justification for the change.

Under the proposal, the county would require all future development to have proper drainage, pipe conveyance, and safety measures to be resilient to a 100-year storm event, adjusting for climate change. A “100-year storm event” is defined by the U.S. Geological Survey as one that statistically has a 1% chance of occurring in any given year. Such a storm would dump about 8 inches of rain over a 24-hour period on the county.

As the effects of climate change increase, that rainfall figure is likely to be adjusted in the future.

DPR Construction, PCL Construction Enterprises, The Whiting-Turner Contracting Company, Skanska USA, and Power Construction top BD+C's ranking of the nation's largest outpatient facility general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report. Note: This ranking includes construction revenue for work related to outpatient medical buildings, including cancer centers, heart centers, urgent care facilities, and other medical centers.

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Construction material prices continue to normalize despite ongoing challenges

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Top 25 Transit Facility Construction Firms for 2023

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Building with shipping containers not as eco-friendly as it seems

With millions of shipping containers lying empty at ports around the world, it may seem like repurposing them to construct buildings would be a clear environmental winner. The reality of building with shipping containers is complicated, though, and in many cases isn’t a net-positive for the environment, critics charge, according to a report by NPR's Chloe Veltman.

Pre-applied blindside waterproofing installed prior to pouring of concrete wall. Photo courtesy Walter P Moore

Waterproofing deep foundations for new construction

This continuing education course, by Walter P Moore's Amos Chan, P.E., BECxP, CxA+BE, covers design considerations for below-grade waterproofing for new construction, the types of below-grade systems available, and specific concerns associated with waterproofing deep foundations.

The new theater at the expanded Eastwood High School in El Paso, Texas, designed by DLR Group. Photo: Michael Robinson Photography, courtesy DLR Group

Performance-based facilities for performing arts boost the bottom line

A look at design trends for “budget-wise” performing arts facilities reveals ways in which well-planned and well-built facilities help performers and audiences get the most out of the arts. This continuing education course is worth 1.0 AIA learning unit.