It is common for construction contracts, particularly public works contracts, to require written notice of any claim for changed or extra work. The notice must be submitted within a stipulated number of days of the event giving rise to the claim and must itemize the increased costs the contractor expects to incur. Failure to give proper timely notice constitutes a waiver of the claim. Read More.
On September 24th, the nation celebrated the opening of the National Museum of African American History & Culture. Designed by David Adjaye and Philip Freelon, the project broke ground in February 2012 on the northeast corner of the Washington Monument grounds. Read more.
To learn more about the museum, visit the Smithsonian website. To learn about the building and its unique architectural features, click here. The project included lowering a restored 77-ton Pullman car and a 21-foot penitentiary guard tower into the basement and finishing the project around them; learn more about the artifacts here.
The “Measured Mile Method” is a technique used for quantifying equitable adjustments (pricing claims) when repetitive or recurring items of work are affected by delay or disruption for which the project owner is responsible. Production rates in unaffected segments of work are compared with production rates for impacted segments of the same work, resulting in a cost comparison. Read more.
Linking Wales with England the one mile long bridge reaches a height of 445 feet at its peak. This video follows a maintenance crew as they walk up and perform their tasks. What's really interesting about this particular video is the use of a 360-degree camera setup. Read more.
Construction claims and changes are the bane of all construction projects. For any number of reasons, scope changes, design conflicts, changed conditions, severe weather, late submittals or late approvals, and potential change orders can be a daily occurrence on complex projects, and sometimes lead to claims.
Successful recovery for valid claims begins with a proper change management program, starting with identification.Read more.
The five-year Panama Canal Expansion project was officially inaugurated on June 26, 2016. The $5.25 billion project started construction in 2007, including a new set of locks on the Atlantic and Pacific sides of the water way and excavation of more than 150 million cubic meters of material, creating a second shipping lane and doubling the cargo capacity of the water way. Read more.
The Mechanical Contractors Association of America (MCAA) has published over the years a series of factors that affect labor productivity resulting from various situational job conditions, such as stacking of trades, weather, overtime and learning curve. The factors have frequently been used by contractors to support loss of productivity (LOP) claims on projects resulting from delays, impacts and acceleration. In response to recent court rejections of use of the MCAA factors to calculate LOP damages, Prof. William Ibbs and Dr. Xiaodan Sun conducted a study to learn why and make suggestions for improvement.
This is an excellent paper and is very informative. Proposed Improvements to the MCAA Method for Quantifying Construction Loss of Productivity documents the history of the MCAA model, it identifies mistakes in its application, and it compares the MCAA model with other LOP studies and previous case decisions. The study found that since 2001, only two of nine cases where MCAA factors were used were successful, reversing a trend of five out of five prior to 2000. Read more.
Here's a 4D building information model (BIM) of the planned new stadium for the LA Rams football team. A 4D model is one that ties objects in a 3D BIM model to activities in a CPM schedule (the 4th "D"). As the schedule is "played" on a computer display, each object in the model appears when it is encountered in the schedule like a time-lapse video. This 4D model, produced by the Conco Companies, a concrete design, construction and formwork supplier, is a good example how 4D works. Read more.