Advanced Infrastructure Engineering Design: Darlington Upgrade Project

This report details the Darlington Upgrade Project, a crucial component of Adelaide's North-South Corridor, aimed at upgrading 3.3 km of the Main South Road. The project involves constructing a lowered motorway using FCFA bored pile walls and revetment slopes, along with steel box girder bridges to manage heavy traffic flow. The report outlines the design of four intersections, including underpasses and bridges, to alleviate traffic congestion. It covers the design considerations for underpass structures, including load calculations and reinforcement details. The project's innovative approach to traffic management and the use of off-line bridge construction are highlighted. The report also references relevant studies and standards, providing a comprehensive overview of the project's design, construction, and its impact on improving traffic flow in the region. The report is a mid-project review that includes an introduction, project progress, project solutions, a Gantt chart analysis, and a conclusion summarizing problems and issues. It also includes an initial task allocation report with detailed project information and design concepts.

ADVANCED INFRASTRUCTURE ENGINEERING DESIGN
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DARLINGTON UPGRADE PROJECT
INTRODUCTION
Background
We worked together to generate a non-stop North-South corridor which will be a major traffic
route in Adelaide which would run between the towns Old Noarlunga and Gawler with total
distance coverage of about 78 km. The Darlington Upgrade Project is an integral part of the
development of this North-South corridor of Adelaide and anticipated to provide an upgrade to
about 3.3 km of the current Main South Road that runs between Tonsley Boulevard and the
Southern Expressway (Gibbons and Cowan, 2018).
One of the major characteristics of the Darlington Upgrade Project is a non-stop motorway that
is lowered. The lowered motorway is maintained using a combination of FCFA bored pile walls
as well as revetment slopes that slope at 60⁰. The details of the design of the revetment slopes
have been provided by Pointon et al. The bored piles are generally needed just after the bridge
abutments as well as at regions in which space is not enough for the construction of the
revetments. The cumulative length of the bored pile walls is about 2 km having a maximum
retained height of about 11 km.
Why the Upgrade Project
The part of Main South Road that runs between the intersection of Ayliffes Road/Shepherd Hill
Road and Southern Expressway tends to be the busiest part of Adelaide's road and carries about
73000 cars every day. The intersection of Main South Road and Strut Road tends to be the
busiest section in South Australia having to carry about 98000 vehicles that moves through it
every day. An innovative, as well as a collaborative approach, has been developed and adopted

for traffic management in a bid to manage this heavy traffic via an early iterative design as well
as review process of constructability. The project is thus aimed at minimizing the disruption to
the more than 73000 vehicles that use the corridor every day through the construction of three
steel box girder bridges off-line in nearby yards.
Solution
Our final design generated four intersections that would serve to ease the traffic level on the
road. The intersections included:
 Construction of an underpass in 1st intersection
 Construction of an underpass in 2nd intersection
 Construction of a bridge in the 3rd intersection
 Construction of an underpass at the 4th intersection
The drawing boundaries for the site as well as the scale drawing for the entire section is as
illustrated in the scale drawing section that demonstrates the various dimensions of each of the
intersections as well as boundary measurements covered by the region.
The originator will check all phases of structure for precision, fulfillment and consistence with
the Brief and important Standards. Underpass structure is planned under the Dead burden, Super
forced Dead burden and Live burden. According to the IRC 6 arranged the Live burden blend
through investigate the Underpass structure in PC included programming and Extract the
consequences of Analysis in Design sheets of underpass and after this structure the Underpass.
The principle things to incorporate on the Design Summary Sheet are:
i. Details of span configuration

ii. Cross sections of design utilized in the investigation at basic positions, for example support
and mid-length.
iii. Subtleties of the fortification or potentially pre-stress and the area limits at the basic
segments.
iv. The usefulness plan minutes and coming about worries at the basic areas.
v. Live Load Distribution Factors for various loadings.
vi. Design Live Load.
vii. The accessible live burden limit at the basic areas, for use in checking overwhelming burden
developments.
viii. Establishment data, i.e. configuration bearing weights for spread footings and configuration
heap loads for heaped establishments.
ix. Configuration scour recompense.
Section scale drawing

References
Gibbons, P. and Cowan, S., 2018. Subgrade Treatment Design for Expansive Soils in Adelaide
using Australian Standard as 2870–Is this the Right Approach?. Australian Geomechanics
Journal, 53(1), pp.97-106
Loureiro, M., Ingram, M., and Loizias, M., 2017. Analysis and design of the South Road double
composite steel tub girder bridge. In Asset Management of Bridges (pp. 137-146). CRC Press
Parrott, J., 2018, July. The Darlington Project–designing a modern marvel. In Australian Institute
of Traffic Planning and Management (AITPM) National Conference, 2018, Perth, Western
Australia, Australia
Pointon, S., Gibbons, P. and Cowan, S., 2018. Design and construction of cost-effective 60o
revetment walls in unsaturated clay. In the 13th Australia New Zealand conference on
Geomechanics (ANZ 2019). Australian Geomechanics, Perth Australia
Riley, E., Harris, P., Kent, J., Sainsbury, P., Lane, A. and Baum, F., 2018. Including health in
environmental assessments of major transport infrastructure projects: a documentary
analysis. International journal of health policy and management, 7(2), p.144
Salih, A., Hird, N., and Kenyon, J., 2018. Darlington upgrade project-pushing the boundaries in
bridge design. In Australian Structural Engineering Conference: ASEC 2018 (p. 26). Engineers
Australia
Strayer, D., Renge, K., Stapleton, M. and Keating, A.C.M., 2016, August. UN Decade of Action
for Road Safety: The Half-Way Point. In International Conference on Traffic and Transport
Psychology (Vol. 2, p. 5)