Alternative Title
Paper No. 2.24
Location
St. Louis, Missouri
Date
10 Mar 1998, 2:30 pm - 5:30 pm
Abstract
Interstate 15 Reconstruction Project includes rebuilding of 137 bridges; widening the existing three general purpose lane roadway to four general purpose lane with a HOV lane and an auxiliary lane roadway, and other associated work such as converting the existing diamond interchanges to single point urban interchanges (SPUI). The project will be built under a design-build procurement process and is anticipated to be completed in 4 ½ years by October of 2001. The subsurface soils beneath the corridor consist of lake deposits (Lake Bonneville), namely soft to medium stiff plastic clays, silts and loose to medium dense sands ranging in thickness over 150 meters. The shallow water table is generally 5 to 10 feet below natural grade. The soft clays have low shear strengths and are highly compressible under embankment loads. The Salt Lake segment of the Wasatch fault is approximately 3.5 kilometer to the cast of the highway corridor. The structures will have to be designed to meet the seismic criteria and take into account the high liquefaction potential of some of the saturated sand lenses. Stage 1 efforts included identification of the various subsurface conditions; evaluation of soil parameters; establishing guidelines for field investigations, laboratory testing; analysis; reporting etc. In addition, various project specific studies were carried out for the proposed reconstruction project, details of which are presented in the paper.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1998 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Gunalan, K. N.; Lee, Thomas S.; and Sakhai, Si, "Stage 1 Geotechnical Studies for Interstate 15 Reconstruction Project, Salt Lake County, Utah" (1998). International Conference on Case Histories in Geotechnical Engineering. 24.
https://scholarsmine.mst.edu/icchge/4icchge/4icchge-session02/24
Stage 1 Geotechnical Studies for Interstate 15 Reconstruction Project, Salt Lake County, Utah
St. Louis, Missouri
Interstate 15 Reconstruction Project includes rebuilding of 137 bridges; widening the existing three general purpose lane roadway to four general purpose lane with a HOV lane and an auxiliary lane roadway, and other associated work such as converting the existing diamond interchanges to single point urban interchanges (SPUI). The project will be built under a design-build procurement process and is anticipated to be completed in 4 ½ years by October of 2001. The subsurface soils beneath the corridor consist of lake deposits (Lake Bonneville), namely soft to medium stiff plastic clays, silts and loose to medium dense sands ranging in thickness over 150 meters. The shallow water table is generally 5 to 10 feet below natural grade. The soft clays have low shear strengths and are highly compressible under embankment loads. The Salt Lake segment of the Wasatch fault is approximately 3.5 kilometer to the cast of the highway corridor. The structures will have to be designed to meet the seismic criteria and take into account the high liquefaction potential of some of the saturated sand lenses. Stage 1 efforts included identification of the various subsurface conditions; evaluation of soil parameters; establishing guidelines for field investigations, laboratory testing; analysis; reporting etc. In addition, various project specific studies were carried out for the proposed reconstruction project, details of which are presented in the paper.
