Full Text
April 2016 - FINAL DRAFT 9-1 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Chapter 9 CAPITAL IMPROVEMENT PROGRAM This chapter presents the capital improvement plan (CIP) for the Wastewater Collection System Master Plan. The CIP includes a summary of recommended projects, preliminary cost estimates, and an implementation plan. 9.1 BASIS OF COST ESTIMATES Cost estimates were prepared for general planning purposes and to guide project evaluation and implementation. The cost estimates presented in this document were developed from bid tabulations, cost curves, and unit costs obtained from previous studies and were based on a 20-City Average Engineering News Record Construction Cost Index (ENR CCI) of 10,037 (July 2015). Final project costs will depend on actual labor and material costs, competitive market conditions, final project scope, implementation schedule, and other variable factors, such as detailed utility and topography surveys. Cost estimates were prepared in accordance with the guidelines of the AACE International (the Association for the Advancement of Cost Engineering, 18R-97) for a Class 5 estimate. Of the five total estimates included in the AACE Cost Estimate Classification System, Class 5 estimates are most appropriate for planning projects before more definitive information (such as detailed designs) is available. For this reason, Class 5 estimates have wide accuracy ranges that vary from -20 to -50 percent on the low side to +30 to +100 percent on the high side. Class 5 estimates fluctuate based on the project’s technological complexity, the availability and accuracy of appropriate reference information, and the inclusion of an appropriate contingency determination. Typically, Class 5 estimates are prepared for any number of strategic business planning purposes, including, but not limited to, project screening, evaluating resource needs and budgeting, and long-range capital planning similar to what is being performed in this Master Plan. 9.1.1 Pipeline Unit Construction Costs Unit construction costs were developed to prepare order of magnitude cost estimates for gravity sewer and force main pipelines. 9.1.1.1 Gravity Sewers Gravity sewer pipeline improvements range in size from 8 inches to 66 inches in diameter. The unit costs provided for these pipelines were based on typical field conditions for construction in stable soil at a depth from 10 feet to 15 feet. Table 9.1 shows the unit costs for the construction of gravity sewer pipelines and appurtenances manholes). ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-2 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.1 Gravity Sewer Unit Construction Costs Wastewater Collection System Master Plan City of Modesto, California Pipe Diameter (inches) Unit Construction Cost ($/linear foot)(1) Pipe Diameter (inches) Unit Construction Cost ($/linear foot)(1) 8 $109 24 298 10 137 27 335 12 163 30 373 15 205 36 447 18 223 42 521 21 260 48 552 Note: Costs are provided as present value based on an ENR CCI number of 10,037, which corresponds with the 20-City Average Index in July 2015. Costs are not escalated to future years. Table 9.2 shows the unit costs for pipeline rehabilitation. Rehabilitation costs include direct construction-related activities and are attained from Modesto’s Wastewater Collection System Condition Assessment Report. 9.1.1.2 Force Mains New force mains will be required for three of the proposed lift stations: Chapman Road, Kansas Avenue, and Whitmore/Carpenter. Estimated unit costs for the construction of force mains are shown in Table 9.3. 9.1.2 Lift Stations Lift station costs were developed on the basis of pumping capacity. Lift station improvements will increase the firm pumping capacity, which is the capacity with the largest pump out of service. The lift station construction cost curve shown in Figure 9.1 was derived from past costs for projects of similar size in California. 9.1.3 Project Costs Construction costs were estimated by adjusting the total direct cost by 25 percent and estimating contingency to account for unexpected construction conditions, the need for unforeseen mechanical items, variations in final quantities, and other project considerations. ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-3 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.2 Gravity Sewer Rehabilitation Construction Costs Wastewater Collection System Master Plan City of Modesto, California Pipe Diameter (inches) CIPP Construction Cost ($/linear foot)(1) Slipline Construction Cost ($/linear foot)(1) 16 $115 $85 18 129 95 21 151 111 24 172 127 27 194 143 30 215 159 33 237 175 36 258 190 39 280 206 42 301 222 45 323 238 48 344 254 51 366 270 54 387 285 60 430 317 66 473 349 Note: Costs are provided as present value based on an ENR CCI number of 11,155.07, which corresponds with San Francisco Bay Area Index in July 2015. Costs are not escalated to future years. Table 9.3 Force Main Unit Construction Costs Wastewater Collection System Master Plan City of Modesto, California Pipe Diameter (inches) Unit Construction Cost ($/linear foot)(1) 4 $144 6 147 8 150 10 156 Note: Costs are provided as present value based on an ENR CCI number of 10,037, which corresponds with the 20-City Average Index in July 2015. Costs are not escalated to future years. ---PAGE BREAK--- ---PAGE BREAK--- LIFT STATION COST VS. CAPACITY CURVE FIGURE 9.1 CITY OF MODESTO WASTEWATER COLLECTION SYSTEM MASTER PLAN 100,000 1,000,000 10,000,000 100,000,000 0.1 1 10 100 Baseline Construction Cost Total Pump Capacity (MGD) ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-5 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx The total project cost was estimated as the total construction cost plus an allowance of 30 percent for engineering, legal, and administration costs. Table 9.4 summarizes the overall approach for developing capital cost estimates. Table 9.4 Capital Cost Estimating Approach Wastewater Collection System Master Plan City of Modesto, California Item Cost Formula Total Direct Cost = A Estimating Contingency B = 25 percent of A Total Construction Cost = A + B Engineering, legal, and administrative costs for implementing the project E.L.A. = 30 percent of Total Construction Cost Total Project Capital Cost = Total Construction Cost + E.L.A. 9.2 RECOMMENDED PROJECTS Table 9.5 summarizes the recommended projects for the CIP. Detailed descriptions of each project were described in Chapters 6 and 8. The City's 2005 sewer bond has already funded some of the projects listed in the CIP. Currently, these projects are either in progress or are planned to start in the near future. To keep track of the overall collection system improvements the City has planned, previously funded projects are listed in the CIP without costs to avoid double counting. 9.3 PROJECT IMPLEMENTATION PLAN The project implementation plan identifies the project phasing, project category, and projected cash flow requirements for implementing the CIP. 9.3.1 Project Phasing Assumptions The CIP projects were prioritized based on their level of urgency. As such, improvements needed to mitigate existing deficiencies were assigned the highest priority, and expansion of the system to accommodate growth was given the lowest. This system expansion will begin when prompted by the City’s growth. The recommended phasing for each project is shown in Table 9.6. ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-6 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.5 CSMP CIP Wastewater Collection System Master Plan City of Modesto, California Project Number Project Description/Street Purpose Improvement Category Ex. Size/ Diam. (in)(6) New Size/ Diam. (in)(6) Replace/ New Length (ft) Total Project Cost(1) Existing System Improvements Area 1 West Trunk LS 19 - Hahn Hahn Lift Station Honey Creek Road and Nightingale Drive This improvement will increase firm capacity from 0.65 mgd to 1.3 mgd to meet existing and future Capacity 0.6 mgd 2.6 mgd Replace - $1,791,000 A-3 Gravity Pipeline(2) Roseburg/Haney Avenue Inspections along this reach indicate that roots have penetrated the RCP. This Pipeline is recommended for urgent repair. The method of rehabilitation will involve cured-in-place pipe (CIPP) lining. Rehabilitation 18 - CIPP 3,000 $619,000 C-1 Gravity Pipeline(2) Woodland Avenue Pipeline aggregate along this reach is missing and protruding. The method of rehabilitation will involves slip-lining. Rehabilitation 54/60 - Slip-lining 24,900 $16,016,000 Rumble Trunk LS 30 - Rumble Rumble Lift Station Rumble Road near Bay Lane This improvement will increase firm capacity from 1.37 mgd to 2.33 mgd to meet existing and future Capacity 1.4 mgd 3.5 mgd Replace - $2,280,000 Area 2 Emerald Trunk B-2 Gravity Pipeline(2) Mercy Avenue Inspections along this reach have observed visible reinforcement with some areas of projecting rebar. The method of rehabilitation will involve CIPP lining and slip-lining. Rehabilitation 18/27/54 - CIPP/ Slip- lining 7,500 $2,176,000 D-2 Gravity Pipeline(2) Briggsmore Ave/Tully Rd The pipeline coating has deteriorated and is susceptible to corrosion. Rehabilitation 30 - CIPP 110 $39,000 Area 3 Sutter Trunk A-2 Gravity Pipeline(2) Pipelines entering Sutter Plant Pipeline reinforcements within the Sutter reach are corroded, and segments of the wall are missing. PoleCam data on the South Trunk identified pipelines with moderate to severe conditions. The South Trunk Siphon was included in this project for budgeting purposes. Rehabilitation 24/30 - CIPP 2,200 $726,000 S-4a Gravity Pipeline Highway 99 This improvement will increase reliability by constructing a parallel 16-inch diameter trunk under Highway 99. Reliability - 16 New 400 $373,000 C-2/S-4b Gravity Pipeline Highway 99 This improvement will rehabilitate the existing 16-inch diameter trunk. Rehabilitation 16 - Rehab 400 $113,000 River Trunk RT-1 Gravity Pipeline(3) Tuolumne Avenue This improvement will provide gravity conveyance of the River Trunk flows from the discharge of the River Trunk force mains to the Sutter Plant. Capacity - 48 New 2,300 $3,211,000 RT-2 Gravity Pipeline(3) Colorado Avenue This improvement will provide gravity conveyance of the River Trunk flows from the discharge of the River Trunk force mains to the Sutter Plant. Capacity - 54 New 4,000 $8,648,000 RT-3 Gravity Pipeline(3) Colorado Avenue This improvement will provide gravity conveyance of the River Trunk flows from the discharge of the River Trunk force mains to the Sutter Plant. Capacity - 60 / 72/84 New 3,300 $7,442,000 RT-4 Gravity Pipeline(3) Tuolumne Boulevard This improvement will provide peak wet weather diversion for the existing Sutter Trunk. Capacity - 21 New 1,300 $1,137,000 RT-5 Force Main(3) Tuolumne Boulevard This improvement will add force mains that allow the system to maintain flushing velocities through a wide range of flows; these force mains will convey flows from the River Trunk Pump Station. Capacity - 30 & 42 New 2,600 $5,818,000 RT-6 Gravity Pipeline(3) Beard Brook North Gravity Alignment This improvement will extend the Dry Creek crossing that conveys flows to the River Trunk Pump Station. Capacity - 48 New 3,900 $16,967,000 RT-7 Gravity Pipeline(3) B Street This improvement will reroute flows to the River Trunk Pump Station. Capacity - 36 & 48 New 1,500 $2,071,000 RT-8 Force Main/ Gravity Pipeline(3) Open Space This improvement will convey flows from the new Shackelford PS to the new River Trunk in Colorado. Capacity - 14 & 18 New 3,200 $1,944,000 RT-9 Gravity Pipeline(3) Sutter Avenue This improvement will rehabilitate the Sutter Ave Trunk based on the results of the condition assessment. Rehabilitation - 24 New 1,300 $533,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-7 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.5 CSMP CIP Wastewater Collection System Master Plan City of Modesto, California Project Number Project Description/Street Purpose Improvement Category Ex. Size/ Diam. (in)(6) New Size/ Diam. (in)(6) Replace/ New Length (ft) Total Project Cost(1) RT-10 Gravity Pipeline(3) Open Space This improvement will rehabilitate a segment of the River Trunk based on the results of the condition assessment. Rehabilitation - 48/60/66 New 15,000 $14,069,000 RT-11 River Bank Armament(3) Tuolumne River Bank This improvement will provide armoring for the riverbank to prevent future erosion and exposure of the CSL and River Trunk. Reliability - - New - $4,668,000 RT-12 CSL Diversion Structures(3) North or Sutter Plant This improvement will provide a contingency to divert flows between the CSL and River Trunk. Reliability - - New - $560,000 PS - Shackelford Shackelford Pump Station(3) East of Crows Landing This improvement will eliminate the siphon below the Tuolumne River. Capacity - 4.2 mgd New - $2,989,000 PS - River Trunk River Trunk Pump Station(3) Morton Boulevard This improvement will eliminate the River Trunk inverted siphon and the associated issues. Capacity - 54.5 mgd New - $33,483,000 Area 4 Downtown Trunks DT-1 Gravity Pipeline J Street The trunk in J Street exceeds the maximum d/D criteria under PWWF, causing the existing 12-inch pipeline to surcharge; replacing the pipe will increase capacity. Capacity 12 15 Replace 2,400 $800,000 DT-2 Gravity Pipeline Kimble Street and Floto Street The existing 10-inch diameter pipelines exceed the maximum d/D criteria under PWWF at approximately 90 percent capacity; replacing these pipes will increase capacity. Capacity 10 12 Replace 1,000 $265,000 C-3 Gravity Pipeline(2) 9th Street Inspections along this reach have exposed missing aggregate, visible reinforcement and deterioration of the concrete walls. The method of rehabilitation will involve CIPP lining. Rehabilitation 27 - CIPP 3,300 $1,037,000 D-1 Gravity Pipeline(2) 12th St./Morton Blvd Aggregate and missing segments of the interior wall were observed below the flow line, which indicates the corrosion is due to chemicals within the wastewater. The method of rehabilitation will involve CIPP lining. Rehabilitation 21/24/27 - CIPP 1,800 $553,000 Area 5 Santa Rosa Trunk SR-4 Gravity Pipeline Coffee Road The existing 10-inch diameter pipelines in Coffee Road exceed the maximum d/D criteria and surcharge under PWWF; replacing these pipes will increase capacity. Capacity 10 15 Replace 1,600 $533,000 SR-6 Gravity Pipeline Kimble Street and Floto Street This improvement will rehabilitate the segment of the pipe that is over 50 years old and is deteriorated to the point that its structural integrity is compromised. Rehabilitation 18 - Rehab 1,000 $358,000 Rose and Celeste Trunk A-1 Gravity/Force Main(2) Scenic Dr/Oregon Dr The project includes rehabilitating gravity pipelines and the 14-inch diameter force main extending from Thousand Oaks Lift Station. Pipeline conditions range from severe to moderate. Urgent repairs are recommended where a void and corroded reinforcements have been observed. The method of rehabilitation will involve CIPP lining. Rehabilitation 16/18/24/30 CIPP 8,800 $2,631,000 LS 29 - Rose & Celeste Rose & Celeste Lift Station Rose Avenue and Celeste Drive This improvement will increase the firm capacity from 0.86 mgd to 1.3 mgd to meet existing and future Capacity 0.9 mgd 2.6 mgd Replace - $1,791,000 Area 6 Empire Trunk EM-1 Gravity Pipeline(4) Yosemite Road The existing pipelines in McClure Road exceed the maximum d/D criteria under PWWF; replacing these pipes will increase capacity. Capacity 10 15 Replace 200 In Progress EM-2 Gravity Pipeline(4) Garner Road This improvement will add a relief pipeline to alleviate surcharging within the Empire Trunk along Yosemite Boulevard and McClure Road. Capacity - 18 New 3,300 In Progress EM-3 Gravity Pipeline Hoover Avenue The existing pipelines exceed the maximum d/D under PWWF at approximately 95 percent capacity; replacing these pipes will increase capacity. Capacity 10 12 Replace 1,800 $476,000 EM-4 Gravity Pipeline Benson Avenue The 15-inch diameter trunk in Benson Avenue exceeds the d/D criteria under PWWF at approximately 93 percent capacity; replacing the trunk will increase capacity. Capacity 15 18 Replace 1,400 $507,000 LS 03 - Benson Benson Lift Station Benson Avenue This improvement will increase the firm capacity from 0.22 mgd to 1.3 mgd to meet existing and future Capacity 0.2 mgd 2.6 mgd Replace - $1,791,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-8 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.5 CSMP CIP Wastewater Collection System Master Plan City of Modesto, California Project Number Project Description/Street Purpose Improvement Category Ex. Size/ Diam. (in)(6) New Size/ Diam. (in)(6) Replace/ New Length (ft) Total Project Cost(1) Sonoma/Lakewood Trunk LS 31 - Scenic Scenic Lift Station(4) Scenic Drive This improvement will increase the firm capacity from 2.3 mgd to 18.4 mgd to meet existing and future Capacity 13.0 mgd 25.6 mgd Replace - In Progress Area 8 Ceres Trunk CT-1 Gravity Pipeline(4) Parallel to Tuolumne River This project rehabilitates the oldest and most deteriorated segment of the Ceres Trunk. Rehabilitation 18/21/24 - Replace 2,900 In Progress C-2a Gravity Pipeline(4) Highway 99 crossing This improvement will increase reliability by constructing a parallel 24-inch diameter trunk under Highway 99. Reliability - 24 New 300 In Progress C-2b Gravity Pipeline(4) Highway 99 crossing This improvement will rehabilitate the existing 24-inch diameter trunk. Rehabilitation 24 24 New 300 In Progress Area 9 River Trunk Tributary B-1 Gravity Pipeline(2) Spokane St/Cascade Ave Inspections along this reach have observed missing aggregate and visible reinforcement. The method of rehabilitation will involve CIPP lining. Rehabilitation 30 - Rehab 5,600 $1,963,000 City-Wide SDR Storm Drain Various Locations This improvement will remove storm drain connections from the sewer collection system. Storm Drain Removal - - - - $17,040,000 R&R Rehabilitation & Replacement Various Locations These improvements will help carry out the Small and Large Diameter Rehabilitation and Replacement Program. Rehabilitation - - - - $17,720,000 Existing Improvements Cost Estimate $175,138,000 Future System Improvements Area 1 West Trunk W-1 Gravity Pipeline Carpenter Road to Sutter Plant Build-out PWWF causes the lower reach of the West Trunk to exceed the maximum depth criteria at approximately 90 percent capacity; this improvement will increase capacity. Capacity - 48 New 5,200 $4,664,000 W-3 Gravity Pipeline Undeveloped Area These improvements are recommended to service future growth within the Beckwith- Dakota and College West CPDs. New Growth - 15 New 4,000 $1,333,000 W-4 Force Main North Avenue These improvements are recommended to service future growth within the Beckwith- Dakota and CPD. New Growth - 6 New 8,300 $1,983,000 W-6 Gravity Pipeline Kansas Avenue This improvement is recommended to service future growth within the Highway 132 CPD. New Growth - 15 New 4,300 $1,433,000 W-7 Gravity Pipeline Carpenter Road and Paradise Road This improvement is recommended to service infill as the sewer service area extends to include county islands. New Growth - 10 New 2,900 $645,000 LS 63 Kansas Lift Station Kansas Avenue and Altamont Court This improvement will add a lift station due to the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 2.0 mgd New - $1,477,000 LS 64 Dakota Lift Station Dakota Road and Beckwith Court This improvement will add a lift station because of the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 1.0 mgd New - $983,000 LS 39 Woodland Lift Station(5) Woodland Avenue and Poust Road This improvement will increase the firm capacity from its current capacity of 20.9 mgd to 25.9 mgd to meet future Capacity 27.4 mgd 32.4 mgd Expand - $1,293,000 Rumble Trunk R-1 Gravity Pipeline Claremount Avenue and Maud Kump Terrace This reach of the Rumble Trunk experiences flow depths in excess of the maximum d/D at approximately 90 percent capacity during replacing the trunk will increase capacity. Capacity 21 24 Replace 5,100 $2,470,000 R-2 Gravity Pipeline McHenry Avenue This sewer trunk extension will provide service to future development in the Pelandale/McHenry CPD. New Growth - 10 New 900 $200,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-9 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.5 CSMP CIP Wastewater Collection System Master Plan City of Modesto, California Project Number Project Description/Street Purpose Improvement Category Ex. Size/ Diam. (in)(6) New Size/ Diam. (in)(6) Replace/ New Length (ft) Total Project Cost(1) Dale Trunk D-1 Gravity Pipeline Undeveloped Area These improvements are recommended to service future growth within the Kiernan- Carver and Kiernan-Carver North CPDs. New Growth - 15 New 1,200 $400,000 D-2 Force Main Undeveloped Area These improvements are recommended to service future growth within the Kiernan- Carver and Kiernan-Carver North CPDs. New Growth - 6 New 2,600 $621,000 D-3 Gravity Pipeline Chapman Road These improvements are recommended to service future growth within the Kiernan- Carver and Kiernan-Carver North CPDs. New Growth - 12 New 1,700 $450,000 D-4 Gravity Pipeline Chapman Road These improvements are recommended to service future growth within the Kiernan- Carver and Kiernan-Carver North CPDs. New Growth - 10 New 2,200 $489,000 D-5 Gravity Pipeline Undeveloped Area These improvements are recommended to service future growth within the Kiernan- Carver and Kiernan-Carver North CPDs. New Growth - 8 New 1,500 $267,000 LS # 60 Chapman Lift Station Chapman Road This improvement will add a lift station due to the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 1.6 mgd New - $1,276,000 North Trunk Extension N-1 Gravity Pipeline Bangs Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 27 New 2,800 $1,524,000 N-2 Gravity Pipeline Bangs Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 24 New 6,100 $2,954,000 N-3 Gravity Pipeline Bangs Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 21 New 1,600 $676,000 N-4 Gravity Pipeline Bangs Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 18 New 3,100 $1,123,000 N-5 Gravity Pipeline Bangs Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 15 New 2,400 $800,000 N-6 Gravity Pipeline Tully Road and Pelandale Avenue Future development within the northern portion of the City will require the completion of a trunk sewers to serve customers. New Growth - 10 New 800 $179,000 N-7 Gravity Pipeline American Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 15 New 3,100 $1,034,000 N-8 Gravity Pipeline Kiernan Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 10 New 5,600 $1,246,000 N-9 Gravity Pipeline Kiernan Avenue Future development within the northern portion of the City will require the construction of several trunk sewers to serve customers. New Growth - 8 New 6,300 $1,116,000 LS 59 Pelandale Lift Station Pelandale Avenue This improvement will add a lift station because of the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 0.3 mgd New - $645,000 LS 65 Kiernan Lift Station Kiernan Avenue and Carver Road This improvement will add a lift station because of the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 0.5 mgd New - $738,000 Area 3 Sutter Trunk S-1 Gravity Pipeline Jefferson Street The trunk in Jefferson Avenue exceeds the d/D criteria at approximately 89 percent capacity. Since the upstream and pipelines have steeper slopes, they were not identified as capacity deficient. Capacity 16 18 Replace 760 $275,000 Area 6 Sonoma Trunk Extension SO-1 Gravity Pipeline Undeveloped Area This group of improvements is recommended to service future growth within the Roselle-Claribel CPD. New Growth - 24 New 3,300 $1,597,000 SO-2 Gravity Pipeline Undeveloped Area This group of improvements is recommended to service future growth within the Roselle-Claribel CPD. New Growth - 18 New 2,600 $943,000 SO-3 Gravity Pipeline Undeveloped Area This group of improvements is recommended to service future growth within the Roselle-Claribel CPD. New Growth - 15 New 2,800 $933,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-10 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.5 CSMP CIP Wastewater Collection System Master Plan City of Modesto, California Project Number Project Description/Street Purpose Improvement Category Ex. Size/ Diam. (in)(6) New Size/ Diam. (in)(6) Replace/ New Length (ft) Total Project Cost(1) SO-4 Gravity Pipeline Undeveloped Area This group of improvements is recommended to service future growth within the Roselle-Claribel CPD. New Growth - 8 New 3,100 $549,000 LS 61 Wood Sorrel Lift Station North of Wood Sorrel Drive and Sylvan Avenue This improvement will add a lift station due to the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 0.1 mgd New - $582,000 Lakewood Trunk Extension L-1 Gravity Pipeline Litt Road This group of improvements will service residential and business-commercial- residential growth to the east within the Roselle-Claribel CPD. New Growth - 18 New 900 $327,000 L-2 Gravity Pipeline Litt Road This group of improvements will service residential and business-commercial- residential growth to the east within the Roselle-Claribel CPD. New Growth - 15 New 1,700 $567,000 L-3 Gravity Pipeline Litt Road This group of improvements will service residential and business-commercial- residential growth to the east within the Roselle-Claribel CPD. New Growth - 12 New 800 $211,000 L-4 Gravity Pipeline Plainview Road This group of improvements will service residential and business-commercial- residential growth to the east within the Roselle-Claribel CPD. New Growth - 10 New 3,000 $668,000 L-5 Gravity Pipeline Claus Road This group of improvements will service business, commercial, and residential growth within the Village One CPD. New Growth - 8 New 300 $54,000 L-6 Gravity Pipeline Merle Ave This group of improvements will service business, commercial, and residential growth within the Village One CPD. New Growth - 10 New 400 $89,000 LS 67 Litt Lift Station Litt Road This improvement will add a lift station due to the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 1.3 mgd New - $1,118,000 Area 10 Ustick Trunk U-1 Gravity Pipeline Ustick Road At build-out of Area 10, the PWWF from new growth will cause the Ustick Trunk to surcharge; replacing this trunk will increase capacity. Capacity 12 15 Replace 2,100 $700,000 U-2 Gravity Pipeline Whitmore Avenue This group of improvements will service commercial and residential growth within the Fairview CPD. New Growth - 10 New 1,000 $223,000 U-3 Force Main Whitmore Avenue This group of improvements will service commercial and residential growth within the Fairview CPD. New Growth - 4 New 400 $99,000 U-4 Gravity Pipeline Whitmore Avenue This group of improvements will service commercial and residential growth within the Fairview CPD. New Growth - 10 New 3,400 $757,000 LS 62 Whitmore/Carpenter Lift Station Whitmore Avenue This improvement will add a lift station due to the area’s flat topography and the extensive length and minimum slope of the proposed pipelines. New Growth - 0.8 mgd New - $887,000 Future Improvements Cost Estimate $42,598,000 Total Capital Improvement Cost Estimate $217,736,000 Notes: Costs are provided in millions of dollars as present value based on an ENR CCI number of 10,037, which corresponds with the 20-City Average Index in July 2015. Costs are not escalated to future years. Total project costs include a 25 percent estimating contingency and a 30 percent allowance for engineering, legal, and administrative costs. Costs are provided in millions of dollars as present value based on an ENR CCI number of 11,155, which corresponds with San Francisco Bay Area Index in July 2015. Costs are not escalated to future years. Total project costs include a 25 percent estimating contingency and a 30 percent allowance for engineering, legal, and administrative costs. Cost estimates are from the River Trunk Realignment, Beard Brook Siphon, and Cannery Segregation Line Improvement Project PDR. The project’s cost is not included in the CIP because the improvement is currently in progress. The cost for the Woodlake Lift Station is based on the 2007 Master Plan and was escalated to reflect the most probable current cost. Lift station capacities refer to the total capacity unless otherwise noted. ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-11 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.6 CSMP CIP Phasing Wastewater Collection System Master Plan City of Modesto, California Project Number Project Total Project Cost Capital Improvement Program Cost per Phase(1) Phase 1 Phase 2 Phase 3 Phase 4 2016 2017 2018 2019 2020 2021-2025 2026-2030 2031-2035 Existing System Improvements Area 1 West Trunk LS 19 - Hahn Hahn Lift Station $1,791,000 $1,791,00 A-3 Gravity Pipeline $619,000 $619,000 C-1 Gravity Pipeline $16,016,000 $6,809,000 $9,207,000 Rumble Trunk LS 30 - Rumble Rumble Lift Station $2,280,000 $2,280,000 Area 2 Emerald Trunk Tributary B-2 Gravity Pipeline $2,176,000 $2,176,000 D-2 Gravity Pipeline $39,000 $39,000 Area 3 Sutter Trunk A-2 Gravity Pipeline $726,000 $726,000 S-4a Gravity Pipeline $373,000 $186,500 $186,500 C-2/S-4b Gravity Pipeline $113,000 $56,500 $56,500 River Trunk RT-1 Gravity Pipeline(3) $3,211,000 $3,211,000 RT-2 Gravity Pipeline(3) $8,648,000 $8,648,000 RT-3 Gravity Pipeline(3) $7,442,000 $7,442,000 RT-4 Gravity Pipeline(3) $1,137,000 $1,137,000 RT-5 Force Main(3) $5,818,000 $5,818,000 RT-6 Gravity Pipeline(3) $16,967,000 $16,967,000 RT-7 Gravity Pipeline(3) $2,071,000 $2,071,000 RT-8 Force Main/Gravity Pipeline(3) $1,944,000 $1,944,000 RT-9 Gravity Pipeline(3) $533,000 $533,000 RT-10 Gravity Pipeline(3) $14,069,000 $14,069,000 RT-11 River Bank Armament(3) $4,668,000 $4,668,000 RT-12 CSL Diversion Structures(3) $560,000 $560,000 LS - Shackelford Shackelford Lift Station(3) $2,989,000 $2,989,000 LS - River Trunk River Trunk Lift Station(3) $33,483,000 $33,483,000 Area 4 Downtown Trunks DT-1 Gravity Pipeline $800,000 $800,000 DT-2 Gravity Pipeline $265,000 $265,000 C-3 Gravity Pipeline $1,037,000 $1,037,000 D-1 Gravity Pipeline $553,000 $553,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-12 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.6 CSMP CIP Phasing Wastewater Collection System Master Plan City of Modesto, California Project Number Project Total Project Cost Capital Improvement Program Cost per Phase(1) Phase 1 Phase 2 Phase 3 Phase 4 2016 2017 2018 2019 2020 2021-2025 2026-2030 2031-2035 Area 5 Santa Rosa Trunk SR-4 Gravity Pipeline $533,000 $533,000 SR-6 Gravity Pipeline $358,000 $358,000 Rose and Celeste Trunk A-1 Gravity Pipeline $2,631,000 $2,631,000 LS 29 - Rose & Celeste Rose & Celeste Lift Station $1,791,000 $1,791,000 Area 6 Empire Trunk EM-1 Gravity Pipeline(4) In Progress EM-2 Gravity Pipeline(4) In Progress EM-3 Gravity Pipeline $476,000 $476,000 EM-4 Gravity Pipeline $507,000 $507,000 LS 03 - Benson Benson Lift Station $1,791,000 $1,791,000 Sonoma/Lakewood Trunk LS 31 - Scenic Scenic Lift Station(4) In Progress Area 8 Ceres Trunk CT-1 Gravity Pipeline(4) In Progress C-2a Gravity Pipeline(4) In Progress C-2b Gravity Pipeline(4) In Progress Area 9 B-1 Gravity Pipeline $1,963,000 $1,963,000 City-wide SDR Storm Drain $17,040,000 $1,020,000 $1,020,000 $5,000,000 $5,000,000 $5,000,000 R&R Rehabilitation & Replacement $17,720,000 $8,860,000 $8,860,000 Existing Improvements Cost Estimate $175,138,000 $4,120,000 $58,259,000 $4,699,000 $16,967,000 $9,917,000 $53,456,000 $13,860,000 $13,860,000 Future System Improvements Area 1 West Trunk W-1 Gravity Pipeline $4,664,000 $4,664,000 W-3 Gravity Pipeline $1,333,000 $1,333,000 W-4 Force Main $1,983,000 $1,983,000 W-6 Gravity Pipeline $1,433,000 $1,433,000 W-7 Gravity Pipeline $645,000 $645,000 LS 63 Kansas Lift Station $1,477,000 $1,477,000 LS 64 Dakota Lift Station $983,000 $983,000 LS 39 Woodland Lift Station(5) $1,293,000 $1,293,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-13 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.6 CSMP CIP Phasing Wastewater Collection System Master Plan City of Modesto, California Project Number Project Total Project Cost Capital Improvement Program Cost per Phase(1) Phase 1 Phase 2 Phase 3 Phase 4 2016 2017 2018 2019 2020 2021-2025 2026-2030 2031-2035 Rumble Trunk R-1 Gravity Pipeline $2,470,000 $2,470,000 R-2 Gravity Pipeline $200,000 $200,000 Dale Trunk D-1 Gravity Pipeline $400,000 $400,000 D-2 Force Main $621,000 $621,000 D-3 Gravity Pipeline $450,000 $450,000 D-4 Gravity Pipeline $489,000 $489,000 D-5 Gravity Pipeline $267,000 $267,000 LS 60 Chapman Lift Station $1,276,000 $1,276,000 North Trunk Extension N-1 Gravity Pipeline $1,524,000 $1,524,000 N-2 Gravity Pipeline $2,954,000 $2,954,000 N-3 Gravity Pipeline $676,000 $676,000 N-4 Gravity Pipeline $1,123,000 $1,123,000 N-5 Gravity Pipeline $800,000 $800,000 N-6 Gravity Pipeline $179,000 $179,000 N-7 Gravity Pipeline $1,034,000 $1,034,000 N-8 Gravity Pipeline $1,246,000 $1,246,000 N-9 Gravity Pipeline $1,116,000 $1,116,000 LS 59 Pelandale Lift Station $645,000 $645,000 LS 65 Kiernan Lift Station $738,000 $738,000 Area 3 Sutter Trunk S-1 Gravity Pipeline $275,000 $275,000 Area 6 Sonoma Trunk Extension SO-1 Gravity Pipeline $1,597,000 $1,597,000 SO-2 Gravity Pipeline $943,000 $943,000 SO-3 Gravity Pipeline $933,000 $933,000 SO-4 Gravity Pipeline $549,000 $549,000 LS 61 Wood Sorrel Lift Station $582,000 $582,000 Lakewood Trunk Extension L-1 Gravity Pipeline $327,000 $327,000 L-2 Gravity Pipeline $567,000 $567,000 L-3 Gravity Pipeline $211,000 $211,000 L-4 Gravity Pipeline $668,000 $668,000 L-5 Gravity Pipeline $54,000 $54,000 L-6 Gravity Pipeline $89,000 $89,000 ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-14 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.6 CSMP CIP Phasing Wastewater Collection System Master Plan City of Modesto, California Project Number Project Total Project Cost Capital Improvement Program Cost per Phase(1) Phase 1 Phase 2 Phase 3 Phase 4 2016 2017 2018 2019 2020 2021-2025 2026-2030 2031-2035 LS 67 Litt Lift Station $1,118,000 $1,118,000 Area 10 Ustick Trunk U-1 Gravity Pipeline $700,000 $700,000 U-2 Gravity Pipeline $223,000 $223,000 U-3 Force Main $99,000 $99,000 U-4 Gravity Pipeline $757,000 $757,000 LS 62 Whitmore/Carpenter Lift Station $887,000 $887,000 Future Improvements Cost Estimate $42,598,000 $0 $0 $0 $0 $0 $12,630,000 $10,931,000 $19,037,000 Total Capital Improvement Cost Estimate $217,736,000 $4,120,000 $58,259,000 $4,699,000 $16,967,000 $9,917,000 $66,086,000 $24,791,000 $32,897,000 Notes: Costs are provided in millions of dollars as present value based on an ENR CCI number of 10,037, which corresponds with the 20-City Average Index in July 2015. Costs are not escalated to future years. Total project costs include a 25 percent estimating contingency and a 30 percent allowance for engineering, legal, and administrative costs. Costs are provided in millions of dollars as present value based on an ENR CCI number of 11,155, which corresponds with San Francisco Bay Area Index in July 2015. Costs are not escalated to future years. Total project costs include a 25 percent estimating contingency and a 30 percent allowance for engineering, legal, and administrative costs. Cost estimates are from the River Trunk Realignment, Beard Brook Siphon, and Cannery Segregation Line Improvement Project PDR. The project’s cost is not included in the CIP because the improvement is currently in progress. The cost for the Woodlake Lift Station is based on the 2007 Master Plan and was escalated to reflect the most probable current cost. ---PAGE BREAK--- ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-15 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx 9.3.2 Project Category Classification Projects are grouped into the following categories: Capacity Improvements: These include either replacing existing trunk sewers or adding new trunk sewers or pump stations to convey current peak wet weather flows As growth continues and more users contribute to the system, increased flow will potentially create additional hydraulic capacity deficiencies during wet weather conditions. For this reason, the hydraulic model was used to identify peak wet weather flow deficiencies at build-out of the service area. The projects that address peak wet weather flow deficiencies at build-out are considered capacity related and are not strictly an expansion of the system to connect future users. New Growth Improvements: These include adding new pump stations and extending existing trunk sewers to serve new customers. Rehabilitation and Replacement (R&R) Improvements: These include improvements to existing trunk sewers or pump stations to extend their useful lives, repair structural deficiencies, and/or improve performance to provide adequate peak hydraulic capacity throughout the planning period. Reliability Improvements: These include constructing parallel sewers where existing sewers cross below major obstacles. Storm Drain Cross Connection Removal: Currently, the City has 60 known storm drain cross connections that discharge storm water runoff to the sanitary sewer system. Based on discussions with the City, it was assumed for the hydraulic model that the cross connections will be removed. Therefore, the capacity evaluation and proposed improvements were developed under the assumption that storm water connections will be removed in the future. Costs per project category are summarized in Table 9.7. Figure 9.2 is a graphical distribution of the costs per category. 9.3.3 Cash Flow Projection The projected cash flow presented in this document is based on the recommended CIP and the implementation schedule. Because it contains only projections, the cash flow analysis is provided merely as a preliminary tool to assess impacts on the City’s resources over time. Currently, others are developing a more detailed financial plan to fund the CIP. The projected cash flow is presented in Figure 9.3. ---PAGE BREAK--- April 2016 - FINAL DRAFT 9-16 pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/CH09/Draft Final - Ch09 CS.docx Table 9.7 Capital Cost Summary by Project Category Wastewater Collection System Master Plan City of Modesto, California Improvement Type Project Phasing(1) Total(1) Phase 1 2015-20 Phase 2 2021-25 Phase 3 2026-30 Phase 4 2031-35 Capacity Improvements $55.6 $40.8 $1.3 $5.6 $103.3 New Growth Improvements - $10.2 $9.6 $13.4 $33.2 R&R Improvements $30.7 $10.2 $8.9 $8.9 $58.6 Reliability Improvements $5.6 - - - $5.6 Storm Drain Removal $2.0 $5.0 $5.0 $5.0 $17.0 Total $94.0 $66.1 $24.8 $32.9 $217.7 Notes: Costs are provided in millions of dollars as present value based on an ENR CCI number of 10,037, which corresponds with the 20-City Average Index in July 2015. Costs are not escalated to future years. Total project costs include a 25 percent estimating contingency and a 30 percent allowance for engineering, legal, and administrative costs. ---PAGE BREAK--- Capacity Improvements New Growth Improvements R&R Improvements Reliability Improvements Storm Drain Removal CSMP CIP COSTS BY PROJECT CATEGORY FIGURE 9.2 CITY OF MODESTO WASTEWATER COLLECTION SYSTEM MASTER PLAN Total CSMP CIP Cost = $ 217.7M $103.3 M $33.2 M $58.6 M $5.6 M $17.0 M ---PAGE BREAK--- ---PAGE BREAK--- $0 $10 $20 $30 $40 $50 $60 $70 Storm Drain Removal Reliability Improvements R&R Improvements New Growth Improvements Capacity Improvements CSMP CIP CASH FLOW FIGURE 9.3 CITY OF MODESTO WASTEWATER COLLECTION SYSTEM MASTER PLAN $103.4 M $80.8 M ---PAGE BREAK---