The project included approach work on both sides of the river as well as demolition of the existing bridge. The project is complicated by the limited work space and fluctuating river levels. Several unique aspects of the project included the contractors use of a barge causeway to access the construction area as well as the use of 9’ tall steel girders.

IDOT provided the resident engineer and HEI provided an assistant resident engineer, support staff and sub-consultants to meet all requirements for Phase III Engineering (construction inspection/materials inspection).

Unique aspects of the project included wick drains, 8’-diameter drilled shafts, T.I.P. testing for drilled shafts, 90’ sheet piling, hydrometer, and embankment surcharges. The project included new 9” PCC jointed pavement for approaches along with a new highway lighting system.