Bridge replacement and rehabilitation

Background

The I-84, I-86 Salt Lake System Interchange project was designed and constructed in 1960. With the roadway, two bridge structures were constructed including #10590 (WB) and #10600 (EB). The Interstate system serves not only southern Idaho commerce, but connects the west coast ports to eastern and southern markets. The I-84, I-86 system is the key transportation link for the northern half of the United States.

Project Description

The Project Purpose is to improve safety and mobility on the I-84, I-86 interstate interchange system. To accomplish this, current design standards will be applied and potential roadway geometrics will be analyzed. The Project Need is to replace the aging bridge structures built in 1960 due to functional obsolescence and width restrictions. Both structures indicate insufficient ratings for deck, substructure, and super structure. New roadway geometrics will also be considered to improve safety and increase mobility.