According to Schnabel Engineering:
In 2005, settlement and lateral movement of the North Plaza and the Ashlar Seawall prompted the National Park Service (NPS) to close a portion of the Jefferson Memorial due to public safety concerns. Schnabel was commissioned by NPS to analyze the problem and develop a repair strategy. [They] conducted an extended settlement study to determine the cause of the seawall and North Plaza movements and the rate of settlement. The problem was in large part due to the foundation timber piles of the seawall not extending to bedrock.
Schnabel conducted a value analysis with NPS to determine the best remedy. The selected option involved demolition and then reconstruction of the seawall on 48-inch-diameter caissons and 18-inch-diameter steel pipe piles. This $13.5 million project was one of the first in Washington, DC to be funded by the American Recovery and Reinvestment Act of 2009. The project received an ASCE 2012 Project of the Year Award from the National Capital Section.
In 2016, I filed a FOIA request to see documentation relating to the project. Below, you will find a breakdown of the records that came in from the National Park Service (NPS).
This post was published on December 20, 2016 10:58 pm
In September 2024, a Freedom of Information Act (FOIA) request was filed with NASA seeking…
Background Welcome to the FBI Files on Historical Figures & Groups archive at The Black…
A new release of Department of Defense (DoD) emails obtained through the Freedom of Information…
Newly released Department of Defense records reveal the prolonged and often frustrating prepublication review process…
Newly released Federal Aviation Administration (FAA) documents obtained by The Black Vault under FOIA case…
Background The Central Intelligence Agency was created in 1947 with the signing of the National…