The
Louisiana Department of Transportation
& Development selected BKI to provide
preliminary and final plans for adding one
lane in each direction of this two (2)
miles of urban interstate. The project was
divided into two contracts and included
interchanges with I-610 and Metairie Road
along I-10.
The
I-10/I-610 interchange included
reconstruction of elevated I-10/I-610
split over the 17th-Street Canal. The new
structure consisted of mainly pre-stressed
concrete girders spans and one three-span
continuous curved steel girder span unit.
Due to a drainage requirement, drainage
design included 3-ft. slabs over the 17th
Street Canal. The condition that a minimum
of two lanes of traffic in each direction
be kept operating while construction was
performed over the existing alignment made
the construction sequence a key aspect of
the project.
As part
of an environmental assessment included in
this project, BKI conducted a
comprehensive series of traffic counts
along this 10-mile length of interstate,
analyzed the data, and prepared a detailed
series of recommendations to address
congestion problems. BKI also performed a
detailed noise study and recommended noise
barriers be constructed throughout the
corridor.
Construction
cost was approximately $27
million.
