2015-03-31 I&S Committee - Item 5 - Attachment 1 - Munna Pt Bridge Repairs Level 3 Bridge Report

designed to be wider than the existing bridge, so that shared use off-road pathways and
anti-jump provisions could be added in the future.

The cost estimate did not include repairs or coatings for the existing deck. In our opinion,
these repairs are necessary, and we have added cost allowances to the below estimate,
for deck coatings, repair of deck joints, cathodic protection of new pilecaps, coating of
stressing bars ends, NSC project management costs and a contingency.

The estimated cost:
   • New substructure (piles, columns, headstocks & removal of existing piles,
       pilecaps & columns) = $6,031,588 (per Arup 2011 report) + waterproofing &
       coating underside of existing bridge deck (allow $200,000) + replace deck joints
       ($75,000) + cathodic protection of pilecaps and piles to ensure 100 year life (allow
       $380,000) + clean up and coat all stressing bar ends (allow $20,000) design &
       project management costs (allow $650,000) + contingency (allow 10%) + GST =
       estimated $8,092,247 + GST.
   • Optional: The deck for a 3.5 metre wide shared use pathway (cycles &
       pedestrians) would be an estimated additional cost of $2,500,000 to 3,000,000 +
       GST.

2012-2013: SCC plans to introduce the design into a future construction budget

February 2014: Tod Consulting carried out investigation of bridge

The new Noosa Council (NSC) engaged Tod Consulting to carry out site inspections and
report on the bridge condition. We attended site on the 14th, 21st and 28th February 2014,
and our observations were as follows:

o   Deck units
    • Visual inspection, review of previous investigations and acceptance of previous
       investigation conclusions

o   Headstocks
    • Visual inspection, review of previous investigations and acceptance of previous
       investigation conclusions
    • The headstocks were not cracked

o   Columns
    • The columns were not cracked

o   Pilecap Beams
    • Core drilling down to reinforcement level on top of the pilecap beams revealed
        that top reinforcement has not corroded. Reinforcement cover was measured at
        100mm.




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