8c - Community Center Slide ReplacementFederal Way Community Center
Slide & APU Replacement
Contingency Funding
Presented by
John Hutton, Parks Director
December 6, 2022
Original Scope of Work
• Remove current concrete footings and install new
• Install new slide & stairs within leisure pool area
• Remove APU Structure (play unit) and install new APU structure
within same footprint
• Remove old pool plaster and re -plaster with new
Additional Concrete Removal
• Concrete Footing Removal
■ Building plans and initial field verification determined that the existing footing was 8" in depth
■ Upon demo, an additional 16" of footing was discovered, leading to additional cost for removal
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concrete cuts for demo
during demo
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additional slab thickness
Rust/Corrosion Repairs
Late October 2022, tiles with visible rust stains were removed to
determine severity of corrosion underneath, if any. Upon removal, CEM
discovered conditions of the concrete behind the tile along with
embedded rebar to be significantly deteriorated from rust/corrosion.
Based on this discovery, CFW staff authorized CEM to remove tiles from
additional locations. Conditions of concrete and rebar in the additional
locations presented the same deterioration. The level of corrosion
uncovered was beyond anything staff had anticipated.
Rust/Corrosion Repairs
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h. ginning of project
after demo to expose interior corrosion
Rust/Corrosion Repairs
• CEM Aquatics recommended GPR (ground penetrating radar) and
engineer review. A full report and plan for reconstruction would
follow.
• CFW staff directed CEM Aquatics to complete temporary repairs
• Repairs include demo of visible corrosion within specified areas,
installing embedded zinc anodes to slow corrosion over time and
patching concrete with SIKA products approved for this application.
• These repairs should extend the life of the pool approximately 10
years.
Tile Repairs
Tile replacement is needed in areas
where rust/corrosion repairs are being
completed
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Waterproofing
• Kryton Waterproofing Systems three step Krystol Leak Repair
System will be applied over all repairs to prevent water intrusion
• Additionally, CFW staff is requiring waterproofing of the entire pool
to extend the pool life and reduce potential future water intrusion
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Current Condition & Future
The full extent of damage caused throughout the concrete will remain
unknown until a full GPR assessment is completed.
Contingency Budget
Funded by unallocated ARPA contingency funds
Additional Concrete Removal
$30,000.00
Rust/Corrosion Repairs
$30,200.00
Tile Repairs
$409300.00
Waterproofing
$129200.00
Total
$1129700.00
Policy Question
Should the City Council approve allocation of additional funding in the
amount of $112,700 for the Federal Way Community Center Slide and
APU Replacement project from unallocated ARPA Contingency funds
and authorize staff to execute the proposed change orders?
Questions?
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