South Collaroy Foreshore & Stormwater Improvements

Detailed design and environmental assessment

Reviewing comments

Overview of the proposed works

The damaged section of the existing seawall, along with a stormwater outlet at the Rock Pool will be upgraded with new infrastructure designed to contemporary engineering standards, restoring the structural integrity of the seawall, promenade and stormwater culvert.

The work will be conducted using a staged approach (A & B - view the detailed design here) to improve the efficiency and increase the capacity of the stormwater network. Additionally, it will enhance pedestrian safety, beach access and visual amenity.

The details of proposed works include:

reconstructing around 70 metres of damaged seawall
reconstructing around 112 metres of the existing stormwater culvert from the Collaroy Surf Club Carpark to the Rock Pool outlet
reconstructing the existing beach access staircase, and
construction of a new junction pit with wet weather surcharge slot.

Images of the work site

Review of Environmental Factors (REF)

A detailed design and an environmental assessment for the project have been carried out. We invite you to view the detailed design and the associated Review of Environmental Factors (REF) for the proposed works and share any comments below.

Have your say

We invite you to provide your feedback by:

completing the comment form below
emailing or writing to us. Please include 'South Collaroy Foreshore & Stormwater Improvements Project' in the subject line of all email or written feedback.

All submissions in their entirety are made publicly available in the Community Engagement Report. Personal identifying information, and content which is discriminatory, hateful or which may defame, offend, insult, humiliate or intimidate will be redacted.

Comment form

*The comment count is manually updated and only indicative until the final report is published. It reflects the total online contributions received only.

Have an enquiry?

Name	Heidi Rasmussen - Stormwater and Floodplain Engineering
Phone	1300 434 434
Email	council@northernbeaches.nsw.gov.au
Website	northernbeaches.nsw.gov.au
In writing	marked 'South Collaroy Foreshore & Stormwater Improvements Project', Northern Beaches Council, PO Box 82, Manly NSW 1655.

Timeline

Timeline item 1 - complete

July 2024: Open and listening

We want to hear your thoughts
Timeline item 2 - active

September 2024: Under review

We'll review the responses and feedback you provide
Timeline item 3 - incomplete

Late 2024: Report to Council Meeting & Sharing what we heard

Report consultation outcomes to Council Meeting and the community and agree next steps
Timeline item 4 - incomplete

Autumn 2025: Construction commences

Expected start date (subject to approvals, contractor availablity and weather)

Overview of the Environmental Assessment

In accordance with Part 5 of the Environmental Planning and Assessment Act 1979 (EP&A Act), a REF was prepared by independent consultants for the proposed works.

The REF examines any potential environmental, social, economic, and cumulative impacts of the works and the ways we will mitigate these impacts, including during construction. The REF is an important document to ensure we are considering and protecting our valued beach and surrounding environment.

The REF considers the potential impacts of the proposed works including influence on any physical and chemical, biological, community, natural resource, cultural heritage and matters of national environmental significance.

Key findings of the REF include:

there will be negligible effects to coastal processes both in the near shore and offshore
no environmental harm to fauna and flora species will occur in the vicinity of the works, howver, Council will be applying for a NSW Fisheries permit to undertake the works in order to follow due process.
no Aboriginal or European heritage is expected to be unearthed or impacted during construction
cumulative impacts are considered to be negligible, and,
there is potential for short term environmental impacts during construction and actions are identified to mitigate this risk.

The REF concludes that the proposed works would not result in significant environmental impacts using the proposed mitigation measures.

To minimise any potential impacts from the proposed coastal protection works, a number of mitigation and management safeguards are incorporated into the REF.

The REF lists required actions to mitigate environmental impacts during construction. These actions will be included in a site-specific Construction Environmental Management Plan (CEMP) prepared by the construction Contractor. The Contractor will implement the CEMP during construction to mitigate the risk of environmental impacts.

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