I-69 Twin Bridges over Patoka River (IN)
Project Type: Design-Build
Location: Pike & Gibson Co., Indiana
Owner: Indiana Department of Transportation (INDOT)
Client: Kokosing Construction Company, Inc.
Construction Cost: $35.2 Million
Completion Date: 2013
JSE provided design services for these precast prestressed semi-lightweight concrete bulb-tee superstructure twin bridges over the Patoka River Floodplain and CR 150N in Pike & Gibson County, Indiana. These bridges are located in seismic zone 2 which requires comprehensive seismic analysis to be performed on the substructures.
These precast prestressed bridges consist of a northbound structure with 30 spans and a southbound structure of 31 spans with a total length of each structure at approximately 4400 feet. The superstructure consists of a concrete deck supported by 4 beamlines of 84” precast prestressed bulb-tee beams. The substructures consisted of frame piers with reinforced concrete cap supported on two 4.5’ diameter columns; each column is supported on a 6’ diameter drilled shaft as the foundation.
Utilizing semi-lightweight concrete beams, the bridges are able to span over 154ft-span with 84” tall beams and also reduce the seismic forces distributed to the substructures which reduce the construction and material cost.
Total Length: 2 structures at 4,400’ each
Number of spans: 7 units with 30 spans (NB) and 7 units with 31 spans (SB)
Main Span: Varies from 130’ to 154’
ACEC Indiana Awards of Engineering Excellence - Merit, 2015
Indiana Completes Highway Early, Millions Ahead - ASCE CE Magazine, Nov. 2012
I-69 Twin Bridges over the Patoka River - ASPIRE, Spring 2013
Major Mover - Roads & Bridges, Feb. 2013