Following the HPMV Evaluation in accordance with the NZTA Bridge Manual of twenty (20) bridge and culvert structures on Porangahau & Wimbledon road as part of the Porangahau and Wimbledon Roads PGF Project, a total of eight (8) structures have been identified as not being capable or carrying full HPMV vehicle loading.
The Porangahau and Wimbledon Road Upgrade will include projects to strengthen these structures to provide future generations with safe and durable roading infrastructure along what is a key thoroughfare in our district.
This first bridge upgrade is currently employed by an all CHB local team and has one new employee through the Mayors Taskforce For Jobs, with another looking to start this week. We expect to start works on the next bridge ‘Kokomoko’ in the next month.
September 2021: Following the completion of an assessment of the bridge it was determined that to make the Porangahau Road/Wimbledon Road route HPMV capable Bridge 174 Kokomoko would require strengthening.The proposed works are to strengthen the abutments by installing concrete columns directly to the front face to enable the abutments and beams to work together. A Traffic Management Plan will be developed to implement the restriction of the bridge to a single 3.7m wide central lane with a 10km/h speed restriction in order to keep the road open and safe for use.
The traffic management and width restriction on the bridge will be kept in place until strengthening works of the bridge have been completed.
September 2021: Design complete
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