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2019-12-16 GC Agenda - Item 5 - Attachment 1 - Noosa Spit Shoreline Erosion Management Plan-Part 2
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Log in to see the plans as drawn Current State (Base Case) OPTION 1a: Beach Nourishment: Dual plug and shoreline nourishment. OPTION 1b: Beach Nourishment: Single plug and shoreline nourishment. OPTION 2: Extension of Existing Training Wall OPTION 3: Extension of Existing Submerged Breakwater OPTION 4: Groyne Field OPTION 5: Seawall along Beach OPTION 6: Do Nothing (Accept Impacts)
Risk Categories & Management Risk Assessment Risk Assessment Risk Assessment Risk Assessment Risk Assessment Risk Assessment Risk Assessment Risk Assessment
Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment Risk Description/Treatment
Unstable river bank and falling trees could cause Consequence Medium Nil Consequence Insignificant Nil Consequence Insignificant Slip Hazard on structure resulting in injury. Introduction of a Consequence Major Submerged structure presents navigation hazard and may be struck Consequence Major Slip Hazard on structure resulting in injury. Introduction of a submerged Consequence Major Trip/slip hazard when exposed. Potentail climbing/play structure that could Consequence Medium Unstable river bank and falling trees could cause injury to staff Consequence Medium
injury to staff and public. This may result in an Likelihood Possible Likelihood Rare Likelihood Rare submerged hazard may result in injuries when diving, swimming or Likelihood Possible by boat, causing serious injury. This may result in an increase in Likelihood Possible hazard may result in injuries when diving, swimming or boating near Likelihood Possible lead to injuries. Likelihood Possible and public. This may result in an increase in insurance claims for Likelihood Possible
RISK increase in insurance claims for accidents. boating near them. This may result in an increase in insurance claims insurance claims for accidents. them. This may result in an increase in insurance claims for accidents. accidents.
Risk Rating Medium (M52) Risk Rating Low (L4) Risk Rating Low (L4) for accidents. Risk Rating High (H72) Risk Rating High (H72) Risk Rating High (H72) Risk Rating Medium (M52) Risk Rating Medium (M52)
Workplace & Public Safety Exclusion of public from affected area using fencing, Consequence Medium N/A Consequence Insignificant N/A Consequence Insignificant Adequate signage/navigation aids of submerged hazards. Ensure Consequence Medium Adequate signage/navigation aids of submerged hazards. Council to Consequence Medium Adequate signage/navigation aids of submerged hazards. Council to hold Consequence Medium Exclusion of public from area when it is exposed using appropriate barriers Consequence Medium Exclusion of public from affected area using fencing, barriers Consequence Medium
barriers and signage. Council to hold appropriate Likelihood Unlikley Likelihood Rare Likelihood Rare central channel is used for boat traffic.Council to hold appropriate Likelihood Unlikley hold appropriate insurance coverage for liability and accidents. Likelihood Unlikley appropriate insurance coverage for liability and accidents. Likelihood Unlikley and signage. Council to hold appropriate insurance coverage for liability Likelihood Unlikley and signage. Council to hold appropriate insurance coverage for Likelihood Unlikley
TREATMENT insurance coverage for liability and accidents. insurance coverage for liability and accidents. and accidents. liability and accidents.
Residual Residual Residual Residual Residual Residual Residual Residual
Medium (M48) Low (L4) Low (L4) Medium (M48) Medium (M48) Medium (M48) Medium (M48) Medium (M48)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
Public perception of mismanagment if no action is Consequence Medium Compliants about noisy machinery and the physical appearance of the Consequence Insignificant Complaints about noisy machinery and the physical appearance of the Consequence Insignificant Intial complaints driven by change to navigation of river. Perception of Consequence Insignificant Complaints about delivering a project that is expected not to work Consequence Medium Intial complaints driven by loss of visual amenity. Consequence Low Perception of "over management" or "too much money being spent" during Consequence Low Public perception of mismanagment if no action is taken to Consequence Medium
taken to prevent breakthrough or repair erosion; Likelihood Likely machinery on the beach, in excess of positive feedback. Likelihood Unlikely machinery on the beach, in excess of positive feedback. Likelihood Unlikely "over management". Likelihood Likely well. Likelihood Likely Likelihood Possible construction. Public perception that seawall is visually unaesthetic. Likelihood Likely prevent breakthrough or repair erosion; potential ncrease in Likelihood Likely
RISK
potential increase in complaints to Council and the complaints to Council and the media.
Risk Rating High (H56) Risk Rating Low (L8) Risk Rating Low (L8) Risk Rating Low (L16) Risk Rating High (H56) Risk Rating Medium (M32) Risk Rating Medium (M36) Risk Rating High (H56)
media.
Reputational
Undertake SEMP; provide strong messaging and Consequence Low Strong media messaging around the project, the tools to be deployed and Consequence Insignificant Strong media messaging around the project, the tools to be deployed and Consequence Insignificant Strong media messaging around the decision, upfront messaging about Consequence Insignificant Targetted messaging to align some of the expectations. Consequence Medium Strong media messaging about visual aspect of solution during project Consequence Low Strong media messaging around the decision, upfront messaging about Consequence Low Strong media messaging around the decision and cost/benefits Consequence Medium
communications of SEMP outcomes by Council Likelihood Possible what this solution provides and avoids. Public consultation to reduce Likelihood Rare what this solution provides and avoids. Public consultation to reduce Likelihood Rare visual aspects during project development, long term spreading of Likelihood Unlikley Likelihood Possible development. Conduct public consultation, where appropriate. Likelihood Unlikley visual aspects during project development, long term spreading of costs. Likelihood Unlikley by Council leaders; ; include public consultation, where Likelihood Possible
TREATMENT
leaders; include public consultation, where Residual complaints. Residual complaints. Residual costs. Conduct public consultation, where appropriate. Residual Residual Residual Seawall to be buried. Residual appropriate. Residual
appropriate. Medium (M32) Low (L4) Low (L4) Low (L8) Medium (M52) Low (L24) Low (L24) Medium (M52)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
Political stakeholder intervention from local and/or Consequence Major Political stakeholder intervention due to the solution requiring expense of Consequence Medium Political stakeholder intervention due to the solution requiring expense of Consequence Medium Political stakeholder intervention due to the solution requiring expense Consequence Medium Political stakeholder intervention due to the implementation of a Consequence Major Political stakeholder intervention due to the solution requiring expense of Consequence Medium Political stakeholder intervention due to the solution taking a infrastructure Consequence Medium Political stakeholder intervention from local and/or state Consequence Major
state government due to breakthrough impacting Likelihood Likely public funds for protection of limited area. Individual views on visual or Likelihood Possible public funds for protection of limited area. Individual views on visual or Likelihood Possible of public funds for protection of limited area. Individual views on visual Likelihood Possible 'legacy' design from Sunshine Coast Regional Council that has been Likelihood Likely public funds for protection of limited area. Individual views on visual or Likelihood Possible "heavy" direction, large expense of public funds for protection of limited Likelihood Likely government levels due to breakthrough impacting Noosa Sound Likelihood Likely
RISK Noosa Sound properties and boat moorings and due environmental impacts may not align with the option. environmental impacts may not align with the option. or environmental impacts may not align with the option. shown to be ineffective and expensive. environmental impacts may not align with the option. area. properties and boat moorings and due to loss of recreational
to loss of recreational amenity. Risk Rating Extreme (E84) Risk Rating Medium (M52) Risk Rating Medium (M52) Risk Rating Medium (M52) Risk Rating Extreme (E84) Risk Rating Medium (M52) Risk Rating High (H56) amenity. Risk Rating Extreme (E84)
Political Strong stakeholder involvement during the planning Consequence Medium Seek supporting 'natural' secondary solution that could alleviate short term Consequence Insignificant Strong stakeholder involvement with the decision making process. Seek Consequence Low Strong stakeholder involvement with the decision making process. Seek Consequence Low Nil Consequence Major Strong stakeholder involvement with the decision making process. Seek Consequence Low Strong stakeholder involvement with the decision making process. The long Consequence Medium Strong stakeholder involvement with the decision making Consequence Major
and decision making process. Likelihood Possible concerns and increase overall benefits. Likelihood Unlikley public feedback about dredge campaigns. Likelihood Possible public feedback about extension of existing structure. Likelihood Possible Likelihood Likely public feedback about similar structures at Munna Point and Likelihood Possible term benefits, seeking of public funds, spreading of costs. Likelihood Possible process. Likelihood Possible
Maroochydore.
TREATMENT
Residual Residual Residual Residual Residual Residual Residual Residual
Medium (M52) Low (L8) Medium (M32) Medium (M32) Extreme (E84) Medium (M32) Medium (M52) High (H72)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
Litigation from property owners in Noosa Sound due Consequence Extreme Difficulty in obtaining regulatory approvals, particularly from the Consequence Low Difficulty in obtaining regulatory approvals, particularly from the Department Consequence Low Nil Consequence Insignificant Boats damaged by impacting submerged structure may seek Consequence Low Nil Consequence Insignificant Difficulty in obtaining regulatory approvals for a large structure in the Consequence Medium Litigation from property owners in Noosa Sound due to reduced Consequence Extreme
to reduced protection from hazards causing damage Likelihood Possible Department of Fisheries given ongoing nature of project and possible Likelihood Possible of Fisheries given ongoing nature of project and possible disruption to Likelihood Possible Likelihood Rare recourse. Potential increase in insurance cases and legal disputes. Likelihood Unlikely Likelihood Rare coastal zone. Likelihood Possible protection from hazards causing damage to properties. Likelihood Possible
to properties. disruption to adjacent fish habitat zone. adjacent fish habitat zone. Implementation of a strategy that is not consistent with the
Implementation of a strategy that is not consistent State Coastal Management Plan (2016) could present
RISK
with the State Coastal Management Plan (2016) could legal/regulatory issues and non-approval from the State.
Risk Rating Extreme (E82) Risk Rating Medium (M32) Risk Rating Medium (M32) Risk Rating Low (L4) Risk Rating Low (L24) Risk Rating Low (L4) Risk Rating Medium (M52) Risk Rating Extreme (E82)
present legal/regulatory issues and non-approval from
the State.
Legal, Governance & Regulatory Collaborate with relevant stakeholder at government Consequence Low Strong stakeholder engagement with regulatory bodies to assist in defining Consequence Insignificant Strong stakeholder engagement with regulatory bodies to assist in defining Consequence Insignificant N/A Consequence Insignificant Adequate signage/navigation aids of submerged hazards. Council to Consequence Low N/A Consequence Insignificant Strong stakeholder involvement with the planning and decision making Consequence Insignificant Reduce risk of litigation by making residents aware of risks as Consequence Low
and industry level to ensure regulatory compliance; Likelihood Unlikley the detailed design. Strong long-term, multi criteria assessment. Strong Likelihood Rare the detailed design. Strong long-term, multi criteria assessment. Strong Likelihood Rare Likelihood Rare hold appropriate insurance and seek legal advice where needed. Likelihood Unlikley Likelihood Rare process. This could include presenting, preparing reports/findings and Likelihood Rare per advice from King and Co. (lawyers); Implementation of this Likelihood Unlikley
Undertake SEMP and provide strong messaging of its compliance reporting to assure stakeholders that habitat zones will not be compliance reporting to assure stakeholders that habitat zones will not be Council to seek legal representation for any disputes. collaborating with State Government to get regulatory approval. strategy is still against regulatory guidance; Collaborate with
outcomes to key stakeholder groups, including maintained. maintained. relevant stakeholder at government and industry level to ensure
TREATMENT government and affected industry groups; Seek legal regulatory compliance;
Residual Residual Residual Residual Residual Residual Residual Residual
advice, where appropriate to ensure compliance with Low (L24) Low (L4) Low (L4) Low (L4) Low (L24) Low (L4) Low (L4) Low (L24)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
regulatory and legislative requirements.
Loss of use of the area to reducing numbers of person Consequence Disruption to recreational area leads to temporary loss in tourist trade. Consequence Disruption to recreational area leads to temporary loss in tourist trade. Consequence Disruption to recreational area leads to temporary loss in tourist trade. Consequence Disruption to recreational area leads to temporary loss in tourist Consequence Disruption to recreational area leads to temporary loss in tourist trade. Consequence Disruption to recreational area leads to temporary loss in tourist trade. Consequence Loss of value to Noosa Sound properties due to reduced hazard Consequence
Low Insignificant Insignificant Insignificant Insignificant Insignificant Insignificant Medium
present in the local economy resulting in loss of trade. protection/increased boat traffic adjacent to properties.
potential tourism trade. Likelihood Likley Likelihood Possible Likelihood Possible Likelihood Possible Likelihood Possible Likelihood Possible Likelihood Possible Reduced recreational amenity of the Spit may lead to a drop in Likelihood Possible
user numbers resulting in less tourist trade.
RISK
Risk Rating Medium (M36) Risk Rating Low (12) Risk Rating Low (12) Risk Rating Low (12) Risk Rating Low (12) Risk Rating Low (12) Risk Rating Low (12) Risk Rating Medium (M52)
Economic
Nil Consequence Low Stong media messaging about construction of project and disruptions. Consequence Insignificant Stong media messaging about construction of project and disruptions. Consequence Insignificant Stong media messaging about construction of project and disruptions. Consequence Insignificant Stong media messaging about construction of project and Consequence Insignificant Stong media messaging about construction of project and disruptions. Consequence Insignificant Stong media messaging about construction of project and disruptions. Consequence Insignificant Stong media messaging and economic support to relocate Consequence Low
Likelihood Likley Likelihood Rare Likelihood Rare Likelihood Rare disruptions. Likelihood Rare Likelihood Rare Likelihood Rare users of Noosa Spit to other local regions. Likelihood Unlikley
TREATMENT
Residual Residual Residual Residual Residual Residual Residual Residual
Medium (M36) Low (L4) Low (L4) Low (L4) Low (L4) Low (L4) Low (L4) Low (L24)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
Cost of mitigation is likely to increase substantially in Consequence Major Budget estimates undervalue project, resulting in medium financial loss Consequence Low Budget estimates undervalue project, resulting in medium financial loss Consequence Low Budget estimates undervalue project, resulting in medium financial loss Consequence Low Budget estimates undervalue project, resulting in medium financial Consequence Low Budget estimates undervalue project, resulting in medium financial loss. Consequence Low High up-front capital costs, complex construction in a difficult enviornment Consequence Medium Cost of mitigation is likely to increase substantially in the event Consequence Major
the event of breakthrough event. Likelihood Almost Certain Likelihood Unlikely Likelihood Unlikely Likelihood Possible loss Likelihood Possible Likelihood Possible leads to financial variation risk. Likelihood Possible of breakthrough event. Likelihood Almost Certain
RISK
Risk Rating Extreme (E88) Risk Rating Low (L24) Risk Rating Low (L24) Risk Rating Medium (M32) Risk Rating Medium (M32) Risk Rating Medium (M32) Risk Rating Medium (M52) Risk Rating Extreme (E88)
Financial
Implement SEMP; ensure strong project Consequence Medium Early tenderer engagement to refine scope and costs. Strong Consequence Low Early tenderer engagement to refine scope and costs.Strong communication Consequence Low Early tenderer engagement to refine scope and costs.Strong Consequence Low Early tenderer engagement to refine scope and costs. Strong Consequence Low Early tenderer engagement to refine scope and costs. Strong Consequence Low Early tenderer engagement to refine scope and costs. Strong Consequence Low Have a Council budget allocated to in the event of a Consequence Medium
management pirnciples are applied in order to Likelihood Possible communication and partnering with the right supplier to ensure time and Likelihood Unlikley and partnering with the right supplier to ensure time and costs are managed Likelihood Unlikley communication and partnering with the right supplier to ensure time Likelihood Unlikley communication and partnering with the right supplier to ensure Likelihood Unlikley communication and partnering with the right supplier to ensure time and Likelihood Unlikley communication and partnering with the right supplier to ensure time and Likelihood Unlikley breakthrough. Apply strong project management skills to Likelihood Almost Certain
TREATMENT appropriately manage the project costs. costs are managed appropriated. appropriated. and costs are managed appropriated. time and costs are managed appropriated. costs are managed appropriated. costs are managed appropriated. manage budget allocation.
Residual Residual Residual Residual Residual Residual Residual Residual
Medium (M52) Low (L24) Low (L24) Low (L24) Low (L24) Low (L24) Low (L24) High (H60)
Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating Risk Rating
Significant, permenant loss of terrestrial vegetation Consequence Medium Ongoing nourishment project will cause continual short term impacts on Consequence Low Ongoing nourishment project will cause continual short term impacts on Consequence Medium Limited short term disruption to local environmental values, limited Consequence Low Limited short term disruption to local environmental values, limited Consequence Low Limited short term disruption to local environmental values, limited long Consequence Low Significant, short term disruption to local environmental values, but long Consequence Medium Significant, permanent loss of terrestrial vegetation and Consequence Medium
and wetlands, ongoing and unmitigated erosion will Likelihood Almost Certain local environmnetal values. Dredge extraction areas can be targeted to Likelihood Possible local environmental values. Dredge extraction areas can be targeted to avoid Likelihood Possilbe long term stabilisation of habitat. Nourishment after constrcution Likelihood Almost Certain long term stabilisation of habitat. Nourishment after constrcution Likelihood Likely term stabilisation of habitat. Nourishment after constrcution likely to Likelihood Likely term stabilisation of habitat. Nourishment after constrcution likely to casue Likelihood Likely wetlands, ongoing and unmitigated erosion will cause loss of Likelihood Almost Certain
cause loss of habitat. Future mitiagtion options likely avoid environmnetally sensitive areas. Greater spacing between environmentally sensitive areas. likely to casue localised disruption ot environmental values. likely to casue localised disruption ot environmental values. casue localised disruption ot environmental values. localised disruption to environmental values. habitat. Future mitiagtion options likely to be more extensive
to be more extensive and cause greater nourishment allows some reduction in impact. and cause greater environmental harm.
RISK
environmental harm.
Risk Rating High (H60) Risk Rating Medium (M32) Risk Rating High (H60) Risk Rating Medium (M40) Risk Rating Medium (M36) Risk Rating Medium (M36) Risk Rating High (H56) Risk Rating High (H60)
Environmental
Implement SEMP to reduce environmental harm and Consequence Medium Nourishment footprint to be carefully selected and programed to avoid Consequence Low Nourishment footprint to be carefully selected and programed to avoid most Consequence Low Design of structures to incorporate fih habitat zone. Stabilisation of Consequence Low Design of structures to incorporate fih habitat zone. Stabilisation of Consequence Insignificant Design of structures to incorporate fish habitat zone. Stabilisation of river Consequence Insignificant Design detailing to incoporate habitat reestablishment and stabilise existing Consequence Low Nil Consequence Medium
damage. Likelihood Possible most disruptive times and locations. Careful multi-criteria monitoring to Likelihood Unlikley disruptive times and locations. Careful multi-criteria monitoring to assess Likelihood Possilbe river bank will prevent further loss. Nourishment footprint to be Likelihood Unlikley river bank will prevent further loss. Nourishment footprint to be Likelihood Unlikley bank will prevent further loss. Nourishment footprint to be carefully Likelihood Unlikley habitat. Nourishment footprint to be carefully selected and programed to Likelihood Unlikley Likelihood Almost Certain
TREATMENT
Residual assess and adapt to impacts. Residual and adapt to impacts. Residual carefully selected and programed to avoid most disruptive times and Residual carefully selected and programed to avoid most disruptive times and Residual selected and programed to avoid most disruptive times and locations. Residual avoid most disruptive times and locations. Residual Residual
Medium (M52) Low (L24) Medium (M32) Low (L24) Low (L8) Low (L8) Low (L24) High (H60)
Risk Rating Risk Rating Risk Rating locations. Risk Rating locations. Risk Rating Risk Rating Risk Rating Risk Rating
Residual Risk Average Medium (M43) Residual Risk Average Low (13) Residual Risk Average Low (18) Residual Risk Average Low (L21) Residual Risk Average Medium (35) Residual Risk Average Low (L21) Residual Risk Average Low (L25) Residual Risk Average Medium (M49)
Highest Residual Risk in Option Medium (M52) Highest Residual Risk in Option Low (L24) Highest Residual Risk in Option Medium (M32) Highest Residual Risk in Option Medium (M48) Highest Residual Risk in Option Extreme (E84) Highest Residual Risk in Option Medium (M48) Highest Residual Risk in Option Medium (M52) Highest Residual Risk in Option High (H60)
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