2025 11 18 City Council Regular Session Packet

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kimley-horn.com 537 Market Street, Suite 202, Chattanooga, TN 37402 423-668-0520 
 
The attached opinion of probable cost (OPC) is provided as a general planning tool for future budget 
allocations and is based on the quantities and pricing provided. The OPC should be viewed as 
preliminary in nature. The primary purpose of this document is to allow for the planning of phased 
improvements using this information to help guide those decisions. Please consider the following in 
reviewing the OPC:  
• Based on the need to install new conduits for electric services including a new 400-amp 
single phase transformer, project lighting, electrical service for festivals and an EV charger in 
the parking area, it was determined that a ‘mill and overlay’ for the parking area would not be 
sufficient. The attached budget assumed a full-depth removal (12”) and reconstruction for all 
parking areas. Please note, some areas of the parking lot may not require full depth removal. 
This should be reviewed and discussed at the time of final design and bidding, allo wing 
contractors to submit alternatives to full-depth removal for some or all the parking area. 
• All concrete areas including paths and patio areas are proposed at a 6” depth. 
• Curbing costs are significant but will remove the need for wheel stops which can be 
hazardous during festival use in the parking area. The only exception is the parking spaces 
next to the proposed transformer. Wheel stops have been added here to provide an 
additional level of protection for the transformer. 
• Sod costs for the large, open space in the park are not included. It is assumed that the 
existing grass will remain and only minimal sodding to areas damaged during construction 
will be required. 
• Since revised drainage for the park would be extensive and potentially cost prohibitive, it is 
assumed that the existing drainage structures in both the park and parking lot areas will be 
sufficient in their current condition and location and will require minimal costs to direct surface 
flows adequately. This will need to be verified at the time of survey and preliminary design.  
• The pricing for a new 400-amp single phase service was provided by AUB, see attached e-
mail for more information. 
• Selection for parking area light fixtures has not been finalized. A lighting allowance has been 
included until a light vendor is selected after which this line item can be updated. 
 
Phasing 
Using the OPC numbers as a rough guideline, more than half the project costs are associated with 
the removal and renovation of the existing parking area including power and lighting improvements. 
Phasing of the parking lot improvements may not be cost effective, so three potential phases are 
proposed below based in part on existing budgetary limitations. 
Phase 1 – Design, Permitting and Initial construction phase. 
This phase includes full engineering and landscape drawings suitable for bidding, site demolition 
($20,000 for this phase) the installation of the new transformer and protective bollards and running of 
conduit for the installation of a pedestal for an EV charging station (EV charger already acquired).  
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