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CRDC 1401-EM140225N IITY a&sca Juu,uv,l,w�a:r4��. Client City of Coppell Project Name: Sand Lake /Denton Tap Intersection Improvements Project Manager: JFristin Green Date Prepared: 2/25/2014 ENGINEER'S OPINION OF PROBABLE COST Item No. Description Units Quantity Unit Price Item cost 100 Mobilization LS 1 $15,000 $15,000 101 Furnish, install, and maintain Project Sign EA 1 $600 $600 102 Preparation of Right -of -Way (complete) LS 1 $5,000 $5,000 103 Prepare and Implement Traffic Control Plans LS 1 $5,000 $5,000 104 Remove street sign EA 7 $100 $700 105 Remove and dispose of existing concrete pavement SY 985 $8 $7,877 106 Remove trees EA 4 $500 $2,000 107 Remove existing storm sewer pipe LF 8 $15 $120 108 Remove existing inlet EA 2 $830 $1,660 109 Remove and replace sidewalks LF 477 $50 $23,850 110 Relocate utility lines (underground) LS 1 $335,000 $335,000 111 Relocate overheard conduit LF 1,805 $5 $9,025 112 Relocate existing traffic signal and utility boxes LS 3 $800 $2,400 113 Relocate and install existing traffic poles & CTV systems EA 2 $1,300 $2,600 114 For unclassified street excavation CY 148 $15 $2,222 115 Furnish and install 8 -inch portland cement treated subgrade SY 730 $2 $1,095 116 For portland cement TON 12 $110 $1,284 117 Furnish and install 8 -inch reinforced concrete pavement w/ 6" integral curb SY 663 $48 $31,840 118 Construct reinforced concrete retaining wall LF 120 $150 $18,000 119 Furnish and install solid concrete interlocking paving units SY 38 $170 $6,460 120 6 -inch monolithic concrete curb LF 260 $3 $780 121 Furnish and install barrier free ramps SY 4 $950 $3,800 122 Recessed 10' curb inlet EA 2 $3,000 $6,000 123 Furnish and install 21" storm sewer LF 8 $70 $560 124 Connect to existing storm sewer EA 2 $500 $1,000 125 Furnish and install mulching (6 -inch depth) SY 560 $13 $7,280 126 For furnishing topsoil (2 -inch depth) SY 187 $21 $3,927 127 Restore landscape and disturbed areas SY 56 $5 $252 128 Furnish and install broadcast seeding SY 248 $1 $248 129 Furnish and install Specimen Canopy Tree (Burr Oak), 4" cal. B/B EA 30 $750 $22,500 130 Furnish and install Ornamental Native Grasses, 1 gal. container EA 850 $20 $17,000 131 Furnish and install Tree Protection Perimeter Fencing LS 1 $1,000 $1,000 132 Install root barrier LF 120 $17 $2,040 133 Repair, replace, modify and restore existing irrigation systems LS 1 $3,500 $3,500 134 Furnish and install street sign pole EA 7 $40 $280 135 Furnish and install pull boxes (1 for every 500 LF) EA 4 $600 $2,166 136 Furnish and install new street lighting (poles and fixtures only) EA 12 $5,000 $60,000 ENGINEER'S OPINION OF PROBABLE COST $ 604,066 CONTINGENCY (20 %) $ 120,813 TOTAL WITH CONTINGENCY $ 724,879