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TABLE 3 <br />STORMWATER FACILITIES <br />ESTIMATED CONSTRUCTION COSTS <br />FOR STORM DRAIN INSTALLATION IN IMPROVED AREAS <br />BACK UP INFORMATION <br />Storm Drain Pipe Construction Cost per Linear Foot <br />Diameter inch <br />Depth of Cover (ft) <br />18 <br />24 <br />30 <br />36 <br />42 <br />48 <br />54 <br />60 <br />66 <br />72 <br />84 <br />96 <br />Sub Task <br />Pipe + Bed (ft) <br />2 <br />2.5 <br />3 <br />3.5 <br />4 <br />4.5 <br />5 <br />5.5 <br />6 <br />6.5 <br />7.5 <br />8.5 <br />Width (ft) <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />14 <br />16 <br />Bedding (ft) <br />0.1 <br />0.1 <br />0.2 <br />0.2 <br />0.3 <br />0.3 <br />0.3 <br />0.4 <br />0.4 <br />0.4 <br />0.5 <br />0.6 <br />Shoring (If) <br />$ 10.34 <br />$12.42 <br />$14.90 <br />1 $17.88 <br />$21.46 <br />1 $25.75 <br />$30.90 <br />$30.90 <br />$37.09 <br />$44.51 <br />1 $53.41 <br />$64.09 <br />Excavation (CY) <br />$ 11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />$11.50 <br />Backfill and Air Tamped <br />Compaction (CY) <br />$ 17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />$17.25 <br />Piping (If) <br />$ 15.00 <br />$29.33 <br />$59.80 <br />$79.35 <br />$90.85 <br />$108.10 <br />$131.10 <br />$154.10 <br />$204.70 <br />$203.55 <br />$304.75 <br />$379.50 <br />Pavement Restoration <br />$ 6.40 <br />$8.54 <br />$10.67 <br />$12.81 <br />$14.94 <br />$17.08 <br />$19.21 <br />$21.35 <br />$23.48 <br />$25.62 <br />$29.89 <br />$34.16 <br />Traffic Control <br />$ 20.91 <br />$23.00 <br />$25.30 <br />$27.83 <br />$30.61 <br />$33.67 <br />$37.04 <br />$40.75 <br />$44.82 <br />$49.30 <br />$54.23 <br />$59.66 <br />Stream Management <br />$ 12.54 <br />$14.38 <br />$16.53 <br />$19.01 <br />$21.86 <br />$25.14 <br />$28.91 <br />$33.25 <br />$38.24 <br />$43.97 <br />$50.57 <br />$58.15 <br />Cover CY <br />2 -5 <br />0.7 <br />1.1 <br />1.5 <br />1.9 <br />2.3 <br />2.8 <br />3.3 <br />3.9 <br />4.5 <br />5.1 <br />6.5 <br />8.0 <br />5 -10 <br />1.4 <br />1.9 <br />2.4 <br />3.0 <br />3.6 <br />4.3 <br />5.0 <br />5.7 <br />6.5 <br />7.3 <br />9.1 <br />11.0 <br />10 -15 <br />1.9 <br />2.6 <br />3.3 <br />4.1 <br />4.9 <br />5.8 <br />6.7 <br />7.6 <br />8.6 <br />9.6 <br />11.7 <br />13.9 <br />15 -20 <br />2.3 <br />3.3 <br />4.3 <br />5.2 <br />6.2 <br />7.3 <br />8.3 <br />9.4 <br />10.6 <br />11.8 <br />1 14.3 <br />16.9 <br />2 -5 <br />$90.32 <br />$124.60 <br />$174.80 <br />$216.19 <br />$251.81 <br />$295.67 <br />$348.00 <br />$397.15 <br />$482.17 <br />$518.89 <br />$684.19 <br />$830.56 <br />5 -10 <br />$110.44 <br />$145.90 <br />$201.42 <br />$248.13 <br />$289.08 <br />$338.26 <br />$395.92 <br />$450.39 <br />$540.73 <br />$582.78 <br />$758.72 <br />$915.74 <br />10 -15 <br />$124.82 <br />$167.20 <br />$228.04 <br />$280.08 <br />$326.35 <br />$380.85 <br />$443.83 <br />$503.63 <br />$599.30 <br />$646.67 <br />$833.26 <br />$1,000.93 <br />15 -20 <br />$136.32 <br />$188.49 <br />$254.66 <br />$312.02 <br />$363.62 <br />$423.45 <br />$491.75 <br />$556.87 <br />$657.86 <br />$710.56 <br />$907.80 <br />$1,086.11 <br />Note 1: The costs in this table reflect an update of the original table prepared in 1999. The 2007 update includes a 15% increase to all unit costs. <br />Note 2: Construction costs presented in this table are planning level estimates. These estimated costs include minor stream management, traffic control costs <br />associated with typical in- stream culvert projects, average utility relocation and pavement restoration costs in improved areas. Utility easement or other land <br />acquisition costs are excluded. Information presented in this table is summarized in Table 2 (costs in Table 2 are rounded to the nearest $10). <br />