Roading
SH57 Laws Hill Reconstruction
Project Overview: 3.5km of State Highway 57 realignment. Works included temporary traffic management, earthworks, roading construction, drainage, bridging and retaining wall construction, landscape work, co-operative environment / partnership. Installation and management of two temporary roads. Large fills and high cut batters. Extremely wet soil conditions, 10 major culvert installations. 4km of kerb and channel and associated sumps. 2km of subsoil drainage. Hydroseeding of cut batters. Clearing of pine trees and scrub.
Earthworks
300,000m3 cut to fill in wet clay and loess
250,000m3 cut to waste
80% Greenfield diversion
High inflow of ground water
Surcharging of fills and settlement periods
Monitoring of fill settlement
Geotextile foundations