GROUND IMPROVEMENTS FOR THE ROUTE 21 VIADUCT PROJECT

Geotechnical aspects were critical elements of the successful construction for the Route 21 Viaduct in Newark, New Jersey. The original viaduct and interchange were structurally deficient and functionally obsolete and needed replacement. The project objective was to design and construct the replacement to the existing Route 21 Viaduct and the adjacent interchange while maintaining traffic flow throughout the construction period. Difficult subsurface conditions at the site that included a later of weak and highly compressible layer of soil organic silt and peat complicated the construction of the project. A significant ground improvement program was required for the soft soils to permit the construction. Ground improvement was needed to reduce post construction settlements and increase the stability of the new embankments and retaining structures. The preloading program included extensive geotechnical instrumentation to control fill placement and evaluate the performance of the ground improvement. The paper discusses the ground improvement aspects of the project and presents the finding so fthe ground improvement program. It also highlights the key issues that affect the successful implementation of the different geotechnical aspects of the project. Design, construction and economic issues are discussed in the paper.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407444
• Corporate Authors:

  American Society of Civil Engineers

  Geo-Institute
  Reston, VA  United States  20191-4400
• Authors:
  • Pepe, F
  • Ro, K
  • Wilson-Fahmy, R
  • Bergeson, W
• Conference:
  • Geotechnical Engineering for Transportation Projects, Geo-Trans 2004
  • Location: Los Angeles, California
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004

Language

• English

Media Info

• Features: References; Tables;
• Pagination: 10 p.
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 126
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Compressible soils; Construction; Embankments; Ground effect; Ground settlement; Improvements; Interchanges; Organic materials; Peat; Retaining walls; Silts; Stability (Mechanics); Traffic flow; Viaducts
• Geographic Terms: Newark (New Jersey)
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Operations and Traffic Management; Pavements; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00988663
• Record Type: Publication
• ISBN: 0784407444
• Report/Paper Numbers: Volume II
• Files: TRIS
• Created Date: Apr 13 2005 12:00AM