Page 7 - March-April2021 Vol 38 No 7

I-440 Bridge over I-65, Franklin Road and CSX Railroad. ©AERIAL INNOVATIONS asphalt, the addition of a third travel
lane in each direction, and ramp safety
Gantry used to roll girders into position. ©WSP USA improvements at the 21st Avenue and
Murphy Avenue exits.

Work also entailed the widening of
three bridges, removal of an elevated
median, upgrades to the intelligent
transportation system (ITS) and roadway
lighting, noise walls, rock fall mitigation
and landscaping improvements. The
I-440 over I-65 and CSX Railroad was
one of the most challenging aspects, and
was the largest potential risk factor for
delaying the schedule. The work required
the widening of a pair of 1000-ft-long
bridges on the fourth level of the system
interchange.
Design-Build Team & Process

TDOT awarded the project to the
Kiewit Infrastructure South with WSP
USA Inc. serving as the Team’s designer
on August 1, 2018. The DB schedule
for completion was set at 708 days. The
project included a disincentive, if not
completed on-time, of $100,000 per
day for the first 30 days and $400,000
each day after. This was a substantial
motivator for all parties involved.

Throughout the Fall of 2018, design
progressed, permits were secured,
utility coordination and constructability
reviews and approvals from TDOT,
FHWA, and vendor shop drawings
were well underway. The DB Team,
with TDOT’s approval, released a series
of Early-Works Packages that focused
on critical elements that needed to be
constructed prior to other activities.

This work included new noise
walls, relocation of existing fiber, and
two ramp terminal improvement
projects. These Early-Works packages
were approved for construction by
November 2018, which allowed limited
construction to start in December 2018.
Heavy construction commenced in
earnest in early 2019.
Pavement Rubblization

One of the significant achievements in
this project was the implementation of
a highly successful rubblization process.
Rubblization for the I-440 project
involved the crushing of the top layer of
the concrete pavement, which was then
recycled for use as graded base material
for the final asphalt pavement.

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