Pioneers in civil project management incorporating safety, reliability and sustainability strategies with every plan and requirement.
© 2026 Civil Environmental Services. Website by R3 Marketing Essentials
After the major floods that hit NSW between February and July 2022, Bridge No. 11554 suffered serious damage. Scour had eroded the embankments beneath Span 16, and at Pier 3 the floodwaters had exposed the bored cast- in-place piles. The existing rock protection around Pier 15 and Pier 16 had also shifted, as most of the smaller rocks (under 150mm) were washed away, leaving the structure vulnerable.
Civil Environmental Services was brought in to fix the damage. We removed the failed material and rebuilt the scour protection using larger, interlocked rock (D50 ≥ 300mm) laid over geotextile. We also reshaped and stabilised the embankments under Span 16, restoring the integrity of the bridge and helping protect it from future flood events.
Enabling Works & Traffic Management — Mobilised to site with required labour, plant and materials; established a secure compound with construction signage and fencing; installed 50 m of temporary concrete barriers with crash cushions to maintain a safe, efficient work zone.
Services & Environmental Setup — Located and protected underground services (including high-risk assets) using steel plates and coordination with service providers; implemented sediment fencing, floating booms and regular environmental compliance checks; installed and maintained erosion/sedimentation controls to prevent runoff into Eastern Creek and protect riparian vegetation.
Vegetation & Access — Cleared and grubbed low vegetation (shrubs, grass, ground cover) with all green waste disposed at approved facilities; removed selected trees in accordance with approved drawings under arborist oversight, with median clearing scheduled at night to minimise traffic impacts; constructed over 5000m2 of temporary access track and centre median ramp using compacted DGB20 over geotextile, completed kerb adjustments and temporary kerb ramps, and reinstated all disturbed areas on completion.
Embankment Regrade & Scour Protection — Following removal of existing scour protection materials, reshaped and regraded the embankment to the specified design profile, removing unsuitable material for long-term stability; placed geotextile fabric as a separation and filtration layer between the subgrade and the scour protection system; installed over 1500 tonnes of 300-600 mm riprap across the embankment for primary erosion protection; placed 1.5 tonne boulders along the toe line and at critical locations to prevent movement during high-flow events, ensuring correct interlocking for structural stability and hydraulic performance.
Final Trim & Quality Assurance — Performed final trim to achieve consistent coverage and design levels; completed quality inspections verifying geotextile installation, riprap thickness and correct placement of scour rock.
Compliance & Safety — Works executed in accordance with environmental management requirements (including sediment and erosion controls) and strict safety protocols to protect the waterway and the structural integrity of the bridge.
