for an overlay and $46,000/mi for localized PCC rehab, the <strong>City</strong> needs to spend approximately $1.45m/year to maintain the current condition average. Pavement Type Miles Average PCI Selected Rehab Based on PCI Rehab Design Life (yrs) Annual Program (mi/yrs) Average Rehab Cost ($/mile) Annual Cost ($) Asphalt 151.8 64 Thin Overlay 20 7.6 170,000 1,290,000 Concrete 70.1 66 Localized Rehab 20 3.5 46,000 160,000 Annual Budget Based on Average Design Life ($/yr): 1,450,000 The third methodology to confirm the required amount <strong>of</strong> annual funding is to identify the current network deficiency, that is the amount required to rehabilitate all streets in the network assuming unlimited funding, and then divide by the typical life cycle <strong>of</strong> each rehabilitation activity. This is referred to as the Fix All Estimate and Steady State Budget. For <strong>Bartlesville</strong>, Fix All Estimate is approximately $32.4M and the Steady State Budget is $1.3M/year, broken down as follows: ACP Rehab Function Total Cost ($) % <strong>of</strong> Total ART COL LOC Life Cycle Cost ($) Full Recon (ACP) 1,480,500 6.9 0 309,700 1,170,800 29,500 Partial Recon (ACP) 4,744,200 22.2 217,200 1,368,000 3,159,000 118,400 Thick Olay 3,527,400 16.5 146,000 915,600 2,465,800 141,500 Moderate Olay 5,229,400 24.4 494,700 1,630,900 3,103,800 208,700 Thin Olay 5,608,800 26.2 957,700 2,317,100 2,334,000 224,200 Surface Treatment 450,300 2.1 147,300 128,800 174,200 45,900 Slurry Seal 303,100 1.4 133,900 90,000 79,200 60,700 Routine Maintenance 47,500 0.2 27,000 12,900 7,600 32,200 Total Asphalt Network: 21,391,200 100 2,123,800 6,773,000 12,494,400 861,100 PCC Rehab Function Total Cost ($) % <strong>of</strong> Total ART COL LOC Life Cycle Cost ($) Full Recon (PCC) 112,500 1.0 0 0 112,500 1,500 Partial Recon (PCC) 2,756,400 25.0 0 1,320,600 1,435,800 55,200 Extensive Panel Replacement 3,121,900 28.4 0 1,715,500 1,406,400 104,600 Moderate Panel Replacement 1,840,600 16.7 7,500 592,600 1,240,500 61,400 Localized Panel Replacement 2,149,700 19.5 35,800 700,900 1,413,000 72,500 Creak Seal, Local Rehab 894,600 8.1 70,800 255,100 568,700 90,100 Crack Sealing 108,800 1.0 23,700 33,500 51,600 21,400 Routine Maintenance 24,900 0.2 500 14,200 10,200 13,700 Total PCC Network: 11,009,400 100 138,300 4,632,400 6,238,700 420,400 Total Network Rehab: 32,400,600 2,262,100 11,405,400 18,733,100 1,281,500 3.3 NETWORK BUDGET ANALYSIS MODELS A total <strong>of</strong> 4 budget runs ranging from $750k to $2.00M per year plus Fix All and Do Nothing options were ran for the asphalt and concrete networks in order to fine tune the analysis process and identify optimum expenditures. The budget analysis results are summarized below: • Fix All - The Fix All budget is similar to the Fix All Estimate in that it assumes each street is rehabilitated with unlimited funds available. The idea is to identify the upper limit <strong>of</strong> spending the IMS Infrastructure Management Services <strong>Bartlesville</strong> 2012 Report Rev1 page 17
<strong>City</strong> would require without any constraints on budgets. For <strong>Bartlesville</strong>, the Fix All budget is approximately $27.8M over 10 years and increases the network PCI to a maximum <strong>of</strong> 94 tapering <strong>of</strong>f to an 85 within 10 years. The Fix All budget is on the same order <strong>of</strong> magnitude as the Fix All Estimate developed in Section 3.2. • Do Nothing - This option identifies the effect <strong>of</strong> spending no capital for 10 years. After 10 years, the Do Nothing option results in a PCI drop from a 65 to a 48. The Do Nothing option is used to estimate the amount <strong>of</strong> equity removed from the system due to deferred rehabilitation. • $750k through $2.00M - Identifies the resultant network PCI at various funding levels. The results <strong>of</strong> the analysis are summarized in the following plot (Figure 13). The X axis highlights the annual budget, while the Y axis plots the 5 year Network Post Rehab PCI value. The diagonal blue line is the analysis results. As can be seen from the plot, a budget <strong>of</strong> $1.25M would maintain the current PCI <strong>of</strong> 64 (the PCI was measured at 65, but has dropped slightly since then). Figure 13 – 5 Year Network PCI Analysis Results Figure 14 presents the same analysis results on an annual basis. This shows that if the budget falls below $1.25M, over time, the overall condition <strong>of</strong> the roads will deteriorate. IMS Infrastructure Management Services <strong>Bartlesville</strong> 2012 Report Rev1 page 18
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