Lincoln Park Estimated Costs-PDF — File 200539

Weston Sampson 3/2/2016 Page 1 11-Jan-16 City of Somerville, Massachusetts Lincoln Park Improvements Overall Project Budget - Opinion of Probable Cost Total Cost for Site Improvements SUBTOTAL 7,464,285 $ Mobilization, Overhead & Profit (10%) 746,428 $ Contingency (10%) 746,428 $ TOTAL CONSTRUCTION BUDGET 8,957,142 $ OPM Services for Construction (Clerk of the Works) assumes 60 week construction schedule @ 30 hrs / week Resident LA / Engineer 1800 HRS 125 $ 225,000 $ Subtotal 225,000 $ Design Services Amendment and Contingency based on amendment request dated 1.11.16 Additional Design Services 1 LS 196,250 $ 196,250 $ 20% Design Contingency during construction 1 LS 39,250 $ 39,250 $ Subtotal 235,500 $ OVERALL PROJECT OPINION OF PROBABLE COSTS 9,417,642 $

Weston Sampson 3/2/2016 Page 2 11-Jan-16 City of Somerville, Massachusetts Lincoln Park Improvements Overall Project Budget - Opinion of Probable Cost Unit Unit Cost Ext Cost Notes SITE PREPARATION/ DEMOLITION Temporary construction fence 1,200 LF 8 $ 9,600 $ Assumes a two "work zone" approach. Construction entrance traction pad 2 LS 5,000 $ 10,000 $ Constrction trailer with electricity and internet 1 LS 20,000 $ 20,000 $ assumes 60 weeks Erosion control device - straw wattles 1,000 LF 5 $ 5,000 $ Tree Removal and Pruning 1 LS 30,000 $ 30,000 $ 56 Trees and/or Large Shrubs R&D Paving 7,670 SY 10 $ 76,700 $ R&D Fence 2,000 LF 7 $ 14,000 $ Strip & Dispose existing turf @ 2"d 875 CY 60 $ 52,500 $ Strip & Stockpile loam @ 6"d 3,536 CY 8 $ 28,288 $ R&D Existing Lighting 1 LS 25,000 $ 25,000 $ R&D Existing Utilities and Structures 1 LS 20,000 $ 20,000 $ Misc. Demolition 1 LS` 25,000 $ 25,000 $ 15% contingency 1 LS 47,413 $ 47,413 $ Subtotal 363,501 $ EARTHWORK Rough Grading 29,480 SY 1 $ 29,480 $ Fine Grading 29,480 SY 2 $ 58,960 $ 15% contingency 1 LS 13,266 $ 13,266 $ Subtotal 101,706 $ SUBSURFACE STORMWATER SYSTEM Stormwater Chambers 3,160 EA 280 $ 884,800 $ 25 year event storage Excavation 11,967 CY 15 $ 179,505 $ Reuse on-site Drain Stone 6,967 CY 35 $ 243,845 $ 12" Drain Pipe 1,000 LF 35 $ 35,000 $ 6" Perforated Underdrain Pipe 980 LF 25 $ 24,500 $ At playground areas Drain Inlets 20 EA 2,500 $ 50,000 $ Drainage Structures 5 EA 6,000 $ 30,000 $ Manholes 12" Collector Drains at Fields 1975 LF 35 $ 69,125 $ 2" Lateral Drains at Fields 10150 LF 9 $ 91,350 $ 15% contingency 1 LS 241,219 $ 241,219 $ Subtotal 1,849,344 $ SITE IMPROVEMENTS Cast-In-Place Walls (30" ht.) 260 CY 700 $ 182,000 $ Deck Facade at Walls 935 SF 25 $ 23,375 $ Granite Landscape Boulders (Natural) 300 TON 400 $ 120,000 $ Assumed 50 blocks at 3' x 6' x 2' Granite Landscape Blocks (Cut Stone) 115 TON 450 $ 51,750 $ Seawall Stone or similar Concrete Mow Curb 1400 LF 25 $ 35,000 $ Concrete Paving 2,715 SY 75 $ 203,625 $ Colored Concrete Paving 460 SY 95 $ 43,700 $ Bituminous Concrete Paving - Vehicular 555 TON 160 $ 88,800 $ 4" full depth pavement located at schoolyard and fire lane. Gravel Subbase 1,835 CY 35 $ 64,225 $ 8" depth assumed Color Sealcoat 24,095 SF 1 $ 24,095 $ Poured-In-Place Playground Surface 10,165 SF 16 $ 162,640 $ Steel Edger 405 LF 15 $ 6,075 $ Recycled Plastic Timber Edger 300 LF 9 $ 2,700 $ Wood Mulch Fiber Surfacing 186 CY 50 $ 9,300 $ Crushed Stone Under Mulch and Decks 130 CY 35 $ 4,550 $ Granite Curbing 405 LF 35 $ 14,175 $ Play Equipment 1 LS 785,000 $ 785,000 $ Decking and Bridges 1,790 SF 45 $ 80,550 $ Accessible Aggregate Surfacing 340 SY 30 $ 10,200 $ Drinking Fountain 3 EA 5,000 $ 15,000 $ Seating (Benches, Lounges, Hammocks) 1 LS 200,000 $ 200,000 $ OLRA 1 LS 45,000 $ 45,000 $ fencing, furshings, etc. Misc. Furniture / Amenities 1 LS 75,000 $ 75,000 $ Trash Receptacles, Bike Racks, Bollards etc. 15% contingency 1 LS 326,514 $ 326,514 $ Subtotal 2,573,274 $

Weston Sampson 3/2/2016 Page 3 Unit Unit Cost Ext Cost Notes PLANTING Tree Planting (4"-4.5" cal.) 150 EA 1,200 $ 180,000 $ Shrub / Groundcover Planting 7,250 SF 28 $ 203,000 $ Rootzone Mix 2,120 CY 36 $ 76,320 $ Loam and Seed 17,670 SY 4 $ 70,680 $ Loam and Sod 14220 SY 10 $ 142,200 $ High Use Mix Garden Planters 25 EA 1,500 $ 37,500 $ Storage Shed 1 EA 8,000 $ 8,000 $ for gardens 15% contingency 1 LS 107,655 $ 107,655 $ Subtotal 825,355 $ FIELD AND COURT AMENITIES Softball Field- Infield Mix 140 CY 60 $ 8,400 $ Foul Poles 2 EA 3,000 $ 6,000 $ Skate Amenities 1 LS 200,000 $ 200,000 $ Soccer Goals 2 EA 5,500 $ 11,000 $ Portable Backstop 1 LS 25,000 $ 25,000 $ BVCL Fencing - 8' Ht. 1040 LF 65 $ 67,600 $ Ornamental Fencing- 4' Ht 360 LF 120 $ 43,200 $ Basketball Goals 3 EA 5,500 $ 16,500 $ Multi-Sport Goal 1 EA 10,000 $ 10,000 $ Player Benches 6 EA 1,500 $ 9,000 $ Splash Pad Equipment 1 LS 40,000 $ 40,000 $ Turf Protection Fencing 1 LS 30,000 $ 30,000 $ Storage Shed for DPW / Rec 1 LS 8,000 $ 8,000 $ divided with two locking doors Irrigation System 1 LS 100,000 $ 100,000 $ All lawn and planting areas, softball field and soccer field Backflow Preventer and Cabinet 1 LS 8,000 $ 8,000 $ Water Service 1 LS 15,000 $ 15,000 $ 15% contingency 1 LS 89,655 $ 89,655 $ Subtotal 687,355 $ ELECTRICAL Sports Lighting 8 EA 60,000 $ 480,000 $ Pedestrian Lighting 40 EA 10,000 $ 400,000 $ Cabinet 1 EA 10,000 $ 10,000 $ Upgrade Electrical Service 1 LS 35,000 $ 35,000 $ 15% contingency 1 LS 138,750 $ 138,750 $ Subtotal 1,063,750 $ TOTAL CONSTRUCTION COSTS SUBTOTAL 7,464,285 $ Mobilization, Overhead & Profit (10%) 746,428 $ Construction Contingency (10%) 746,428 $ TOTAL CONSTRUCTION 8,957,142 $ OPM Services for Construction (Clerk of the Works) assumes 60 week construction schedule @ 30 hrs / week Resident LA / Engineer 1800 HRS 125 $ 225,000 $ Subtotal 225,000 $ Design Services Amendment and Contingency based on amendment request dated 1.11.16 Additional Design Services 1 LS 196,250 $ 196,250 $ 20% Design Contingency during construction 1 LS 39,250 $ 39,250 $ Subtotal 235,500 $ OVERALL PROJECT - OPINION OF PROBABLE COSTS 9,417,642 $