A new Occupational Safety and Health (OSHA) Rule, which was to begin being enforced on June 23, 2016, has been postponed until September 23, 2017. This new rule significantly reduces the Permissible Exposure Limit (PEL) for crystalline silica. The previous PEL was 250 micrograms per cubic meter for the construction industry and is now being
In this issue of SCI FYI, we are sharing a synopsis of The Mitchell Site: An Upgrade, a paper presented by Don Booth at the 82ndAnnual Meeting of the Society for American Archaeology, Vancouver, Canada. The Mitchell Archaeological Site is a pre-Columbian Mississippian (A.D. 1050-1350) mound center located at the western end of University Drive in Mitchell, Illinois.
Southern Illinois has a rich history of coal mining, dating back to the early 1800s where coal was first observed outcropping along the bluffs above the American bottoms. Fast forward to present day and the historic abandoned underground mine works now pose a significant mine subsidence risk to an area that has seen heavy development.
Architectural building designs that incorporate large windows for lighting or aesthetic value will have the need for roof anchors. Whether bolted, embedded in concrete or welded, roof anchors are the integral part of the fall arrest system used for window washing crews and other trades that would need to access your building’s façade. The testing
Due to federally protected bat species regulations set forth in the Endangered Species Act (ESA) of 1973, land development activities that require tree clearing may trigger the need to consult with the United States Fish and Wildlife Service (USFWS). The USFWS is the federal agency tasked with ensuring that project actions do not harm or
Transportation system improvements oftentimes benefits commuters while also creating negative noise impacts on neighboring communities. Recognizing the fact that traffic noise cannot be completely eliminated, the Federal Highway Administration (FHWA) has adopted a more realistic and comprehensive policy that strives to make traffic noise more manageable through improved rules. The previous rules utilized Traffic Noise
As part of a federal project with the St. Louis District of the U.S. Army Corps of Engineers and with technical expertise from Dr. Lynn Robbins of Missouri State University, SCI completed a three-week Indiana bat survey along the Mississippi River. The purpose of the survey, spanning eight sites along the Mississippi River in Illinois and
Factors to consider when selecting a vapor retarder include material type, geographic location, and placement within the structure. A vapor retarder, more commonly known as a vapor barrier, can be useful in construction when it is necessary to separate an area of high temperature and humidity from an area of lower temperature and humidity. However,
Railroads have played a major role in the history and development of our country and are frequently determined to be significant by State Historic Preservation Offices. On the surface, it may seem that converting an abandoned rail bed into a trail would be a rather straight forward, relatively simple process. However, there are a multitude