Waikato regional economic profile - Waikato Regional Council

Figure 68: Flood protection direct benefit area and land useThe most significant flood protection and river management activities occur within twozones – the Lower Waikato and Waihou Piako. The features of these schemes aresummarised in table 7.Table 7:Summary of features of Waikato region flood protection and control schemesFlood protection providedtoLower Waikato41,000 ha 250,000 haValue of flood assets (RV) $108 million $221 millionAnnual expenditure(flood/river only)Annual capital spendAnnual depreciationAssets$3.7 million(3.4% of asset value)$1.3 million$1 millionStopbanks 250 kmFloodgates 253Pump stations 66Channels/streams 250 kmPumps 120Waihou Piako$6.6 million(3% of asset value)$1.9 million$2.5 millionStopbanks 343kmFloodgates 134Pump stations 52Channels/Streams 986kmAlthough the direct beneficiaries of the schemes are landowners in the flood plains, it isalso worthwhile noting that SH 1, 2, 25, 26 and 27 all go through the floodplains of theLower Waikato and Waihou Piako catchments. Sections of SH 2 and 25 are currentlybelow high tide level. The flood protection works ensure that these roads remain openand viable in their present form and location.In the Waihou and Piako zones, service level reviews were completed in 2011. Theoutcomes of these surveys represent substantial progress in the quality of theinformation available, supported by WRC’s asset management system.Doc # 2069885 Page 69