Sources: Washington State Department of Transportation; CP staff Washington State DOT and Guy F. Atkinson Construction have mapped a two- to three-week January schedule to place the final precast, prestressed concrete girders for the three-span, southbound Interstate 5 Puyallup River Bridge in Tacoma. To eliminate piers along BNSF and Union Pacific rail lines paralleling the water, engineers enlisted Federal Way,…
Read MoreDay: January 7, 2021
LafargeHolcim measures building enclosure prospects in Firestone deal
Sources: LafargeHolcim Ltd., Zurich; CP staff LafargeHolcim projects a second quarter closing on a $3.4 billion deal for Nashville-based Firestone Building Products (FBP), the largest acquisition in the company’s five-year history and one stretching well beyond its cement, aggregate and ready mixed concrete production competencies. With a full range of EPDM (ethylene propylene diene monomer), thermoplastic polyolefin, PVC, asphalt and…
Read MoreEPA rule clears traditional opaqueness in science justifying regulatory actions
Source: U.S. Environmental Protection Agency; CP staff A new rule establishes that when promulgating significant regulatory actions or developing influential scientific information, the Environmental Protection Agency will give greater consideration to studies where the underlying dose-response data are available in a manner sufficient for independent validation. The rule does not require the release of personally identifiable information or confidential business…
Read MoreU.S. Geological Survey reveals limits of climate change projections
Sources: U.S. Geological Survey, Department of the Interior; CP staff A new report from the USGS—the indispensable source of portland cement, crushed stone and sand & gravel shipment data—stresses the need to factor uncertainties attending climate change predictions, especially as models link present greenhouse gas emission levels to earth temperature trajectories through the year 2100.
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