Lakes Entrance - Mississippi Creek Bridge
About the Project
Scriveners Road, Kalimna West has become a strategic alternative route to Lakes Entrance. It is acknowledged as being the detour utilised to access Lakes Entrance when the Princes Highway is closed. Scriveners Road also provides essential access for the management of part of the Colquhoun State Forest north of Lakes Entrance and crosses the Gippsland Lakes Discovery Trail.
Council has upgraded the road over the years from a gravel track to a sealed road. In spite of this, the section over Mississippi Creek is still narrow and subject to regular flood damage.
The floodway was originally formed to mitigate the commanding flood flows, but the crossing has been heavily damaged by the many floods that have occurred since 2020. In 2022, the flood damage to the downstream side and the deteriorating condition of the upstream headwall had affected the road formation to the extent that it was no longer wide enough to cater for two-way traffic.
Council implemented single lane traffic whilst investigating and designing temporary works and were waiting for the compromised sewer main to be upgraded and relocated by East Gippsland Water. In 2023 the reinstatement of the road formation to its former width was achieved by using sheet piling as a temporary solution.
Objective and scope
The objective of the project is to upgrade the current culvert crossing to a higher bridge, thereby improving the road's functionality and resilience, particularly against floods. The project aims to ensure the new bridge has a 100-year design life and a load capacity of up to 68 tonnes. The project scope includes:
- Geotechnical investigation: Assessing the soil and ground conditions to inform the bridge design and construction process.
- Hydrological and hydraulic modeling: Analysing water flow patterns and hydraulic characteristics to ensure the bridge can withstand potential flooding events.
- Liaison with stakeholders and authorities: Collaborating with relevant parties to ensure regulatory compliance and gather input from stakeholders.
- Vegetation assessment and permits: Evaluating the impact of the project on surrounding vegetation and obtaining necessary permits for construction.
- Cultural Heritage Management Plan: Developing a plan to protect and manage cultural heritage sites that may be affected by the project.
- Detailed design: Creating a comprehensive design for the new bridge, taking into account flood resilience and potential realignment of road approaches to enhance safety.
- Grant funding application for construction works: Seeking financial support for the implementation of the project.
Additionally, a consultant has been engaged to undertake the engineering survey, geotechnical investigation, and detailed engineering design. While flood resilience is the primary focus, the project will also consider opportunities to improve road safety by realigning road approaches.
Consultation and community engagement
This project was initiated following community feedback identifying concerns regarding access to Lakes Entrance when the Princes Highway is closed, and reports of ongoing flood damage to Council infrastructure.
Letters will be posted to local residents directly affected by the investigations and subsequent activities to inform them of the proposed project. Project updates will also be provided in the tab below; please subscribe to follow this project to receive important information regarding this project directly to your inbox.
Funding
East Gippsland Shire Council has provided funding to undertake investigations and design.
The commencement of construction is subject to future funding availability and the success of future funding applications.
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