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History of Local
Government Concrete
Roads
John Nichols
1920 Parramatta Rd, Auburn, 1 km East of Duck River
Parramatta Road
• 1918 Gravel, lasted
three years
• 1923 reconstructed,
failed winter of 1925
• 1925 Formation of a
Task Force to solve
Parramatta Rd,
Formation of Main
Roads Board (MRB)
• 1925-33 Concrete
prime paving material
15 July 1927 14 May 1928
“Beneath the mighty pylons of the North Shore Bridge …..”
1928
1880 King Street, Sydney
• Base for wood block paving
• 1930 Fifty years later, still being
re-surfaced with wooden blocks
• 1960’s wooden blocks still being
recovered in excavations
1916 Woollahra Council
New South Head Road, Rose Bay
• First concrete running
surface pavement
• Still in service, with AC
surfacing
• 100th Anniversary
1917 Woollahra Council
• Hopetoun Ave, Vaucluse, low maintenance, intention to reduce land rates
• Mayor: W Foster (also a road contractor) “concrete roads in Woollahra had a profound effect on property values – doubled in five years”
“Where concrete goes down, values go up”
1918 Alfred Street, North Sydney
• 1928 Demolished for
SHB approaches
1919 Walker Street, North Sydney
Early Pavement details (before 1920)
• Slab thickness: 6”
• Placed directly on subgrade
Fossillised grass impressions on slab underside
• Concrete: 1:2:6 Cement : Sand : Agg
• Reo: 3/8” bar or rectangular mesh
1923 Botany Road Pavement
• Botany area: Heavy industry & wet sandy
subgrade
• “a quagmire in the wet and a ribbon of dust in
the dry”
• Municipalities of Alexandria, Waterloo, Mascot
& Botany formed:
Botany Road Trust Constitution Bill
• Construction starting ceremony by the premier
Sir George Fuller 10 December 1923
1923 Botany Road Pavement
• Slab thickness: 8” with edges 10”
• Concrete 1 : 1.5 : 3
Cement : Sand : Agg
• Reo 3/8” bars on a 9” square grid
• Imported paving machine with
mixing drum
1923 Botany Road Pavement
• Benefits were immediate
• Doubling of traffic flow
• Benefits estimated as several times the cost of
sinking fund and interest
• Confirmed that it paid to build good roads
• Success led to Parramatta Road Solution.
1925 Parramatta Road
• 1925 Formation of the
Main Roads Board
• Task Force to solve
Parramatta Rd
• 1925-33 Concrete
prime paving material
1925 Canterbury Road, Dulwich Hill
• First year of operation
of MRB
• On behalf of a group of
inner western
municipalities
1928 Edgeware Road, Marrickville
1928 Edgeware Road, Marrickville
Deficiencies in early
concrete roads
Deficiencies in early concrete roads
• Poor subgrade preparation
• Lack of sub-bases
• Inadequate shear load transfer
• Wide joints
• Low concrete strength
• Thin concrete base thickness
• Low compaction
Subsequent Australian
Pavement Milestones
1929 Hume Highway Marulan
Mulwarree Shire Council & MRB
• 8 km long
• Contractor: Concrete
Constructions (Roads)
Ltd
1930 Sydney to Newcastle Road
1952 Princes Highway
Georges River approaches
• 8 km section
• Wide expansion joints
• Placed on 2 inches of
sand
1966-69 Warringah Freeway
2.3km long, 23 lanes at Falcon St
• 200mm 18 MPa Concrete
• 150 mm DGB
• 300 mm select subgrade
1975 Clybucca flat
• First deformed bar CRCP in NSW
• First LMC subbase
(130 mm 8Mpa)
• Base 230 mm 4.0 MPa Flex 28day
• 5.5 km, 2 lane, single carriageway
1978 Foreshore Road, Port Botany
• First: Slip form paver
• CRCP
• 11.5 lane km
• Base 200 mm
• Sub-base 125 mm lime stabilised crushed rock
• Reo Long C16@150
Trans C12@500
1979 F4 Homebush
• CRCP
• 13.5 lane km
• Base 200 mm
• Sub-base 100 mm lime
stabilised crushed rock
• Reo
Long C16@155
Trans C12@900
1982
Bicentennial Roads Program to 1988
Pacific Highway, Wyong (May ’82) &
Hume Highway, Tumblong (Jul ‘82)
Completion of Hume & Pacific
Highways: Brisbane to Melbourne
• Last missing link:
• Pacific Highway, Woolgoola – Ballina
156 km Dual Carriageway Freeway
60% concrete
• Dead Line: 2020
History of Local Government Concrete Roads
Evolution of Design & Construction
• Subgrade preparation
• Attention to drainage
• Jointing
• LMC subbase
• PCP, short joint spacing 4-5 m
• Selected use of CRCP
• Pavement thickness, concrete
strength and compaction
• Restoration by Grooving & Grinding
Summary
History of Local
Government Concrete
Roads
John Nichols
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