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5-Waters-Volume-5-Land-Drainage
4 Hororata River Drainage Area
4.1 Scheme Summary
Scheme Area
| 761.91 ha |
Scheme Coverage -Capital value (as at 1 July 2020)
| Class A
| $14,020,810
|
Systems components
| Drain Length (m) | None |
| Pump stations (No.) | None |
| Other assets | None |
| History | Installation Date | Installed progressively from 1850's |
Value ($)
| Replacement Cost | - |
| Depreciated Replacement Cost | - |
| Financial | Annual maintenance cost
% of total Land Drainage maintenance
| $4,500/year on average
2% of total Land Drainage maintenance spend
|
| Drainage Outlet | Ultimate discharge point | Hororata River |
| Sustainability | Sustainable drain management practices | Adopted and Encouraged |
4.2 Key Issues
The following key issues are associated with the Hororata River Drainage area. A list of district wide issues are located in 5Waters Activity Management Plan: Volume 1.
Table 4‑1 Hororata River Key Issues
| Changing regulations regarding activities that can be undertaken in and adjacent to natural waterways and managing this against community expectations and budgets. | Continue to work with the Community Committees and Environment Canterbury to identify appropriate mitigation works as issues arise. |
4.3 Overview & History
The Hororata river scheme has a rating area of 762Ha.
The scheme being associated with a section of the Hororata River is adjacent to the Hororata Township. Rates are collected for willow control and other minor works within the river including erosion protection maintenance.
In 2011, a variation to the Te Waihora Water Conservation Order was made, bringing a strong cultural focus into place. The Selwyn - Waihora Zone Committee (established under the Canterbury Water Management Strategy) also released its Zone Implementation Plan (ZIP) and ZIP addendum.
4.4 Resource Consents
There are no existing consents for this land drainage scheme.
4.5 Scheme Assets
There are no Council owned assets within this scheme.
4.6 Operational Management
Council delegates some aspects of management of the Land Drainage network to 9 Land Drainage Committee's comprising of local residents with an interest in the Land Drainage network. Council Service Delivery Staff work alongside the Committee's to prioritise and facilitate maintenance activities which are undertaken by a number of local contractors.
4.7 Photos of Main Assets
Photo 1 – Hororata River
4.8 Risk Assessment
A risk assessment has been undertaken for Hororata River scheme. The key output from the risk assessment is the identification of any extreme and high risks which need to be mitigated. In order to mitigate these risks they have been included and budgeted for in the projects within this LTP. No high risks have been identified for this scheme.
4.9 Asset Valuation Details
There are no Council owned assets within this scheme.
4.10 Renewals
There are no renewals for this scheme.
4.11 Critical Assets
The criticality model for has been updated for the 2018 AcMP. The methodology of the criticality model can be found in 5Waters Activity Management Plan: Volume 1 and it provides details of how the criticality has been calculated for the reticulation assets. There is no criticality for this scheme.
4.12 Asset Condition
The asset condition model was run for Hororata in 2018. The methodology of the model can be found in 5Waters Activity Management Plan: Volume 1 and it provides details of how the model has been calculated for the reticulation assets (particularly pipes). There is no known recorded condition for assets within this scheme.
4.13 Funding Program
There are no projects specific to the Hororata River scheme in the 10 year LTP budgets, however the scheme will benefit from a number of district-wide initiatives. The list of district wide projects can be found in 5Waters Activity Management Plan: Volume 1.
