Page 22 - DavisNow Community Meeting 2.13.2019

Cost Estimate DavisNow.org Community Meeting 2.13.2019 22
Methodology
This concept-level estimate establishes
a probable construction cost for all 18 components illustrated in this Punch List.
• Quantities are based on direct field observations
• Repair areas of each brick sidewalk and crosswalk are based on visual inspections of each individual deficient section
• Square footage of each area has been over- sized (x2) to assure that enough repair area has been quantified
• The individual components are further escalated with a 50% estimating contingency at the bottom of the estimate
• Based on the quantities, unit prices, and factors of safety used, Davis Square can be significantly improved for under $750,000
Brick Area Calculations
The SF areas listed in this chart represent the approximate size of each repair section, multiplied times 2.
Component
1 Sidewalk asphalt patch repairs 2 Sidewalk failed brick repairs
3 Crosswalk asphalt patch repairs 4 Crosswalk failed brick repairs
5 Granite pavers
6 Granite curb resetting
7 Granite Belgian blocks resetting at tree wells
Street tree replacements
9 Street tree lighting repairs
10 Traffic signals - repaint yellow poles and signal housing to black (or replace)
11 Traffic signals - repaint yellow signals on galv arms
Quan Unit Unit Price
Cost Scope
65,100 remove asphalt patches, prepare base, install new brick to match existing
40,250 replace broken/pulverized brick, level areas that have subsided
21,000 remove asphalt patches, prepare base, install new brick to match existing
32,900 replace broken/pulverized brick, level areas that have subsided
7,200 remove asphalt patches, prepare base, install new granite pavers to match existing
8,000 remove curb, adjust base, reset curbs with tight joints
4,800 remove blocks, adjust base, reset existing blocks in neat pattern
20,000 remove asphalt plugs and former tree roots; plant substantial new trees
52,500 install new conduit and sensors restring trees with LED light strings
70,000 replace existing yellow light poles and signal fixtures with black LED units
16,000 replace existing yellow signal fixtures with new black LED units
3,800 remove obsolete/unneeded signs; straighten poles to plumb/vertical
6,400 refinish - repaint black
4,000 straighten poles to plumb/vertical; remove old stickers
- removal by owners
35,000 remove section of brick; regrade base, reset bricks level with adjacent sections
40,000 prepare grade to support new lawn
12,000 remove existing tree roots; plant new trees 12,500 thin/remove overburdened branches
35,000 replace porcelain enamel interpretive signs, repair steel columns, replace sculptures
490,000 250,000 740,000
Street
College
Elm North
Elm South
Grove East
Grove West
Highland
Holland
Statue Park
Totals 1,850 1,300
Crosswalks 600 900 Total Area Calculated 4,650
1860 sf $ 1150 sf $ 600 sf $ 940 sf $ 120 lf $ 200 lf $ 12 ea well $ 10 ea tree $ 35 ea tree $ 14 ea unit $ 8 ea signal $ 38 ea loc $ 32 ea pole $ 40 ea meter $ 12 ea sign $ 1000 sf $ 4000 sf $ 6 ea tree $ 25 ea tree $ 7 ea sculpture $
50%
35 $ 35 $ 35 $ 35 $ 60 $ 40 $
400 $ 2,000 $ 1,500 $ 5,000 $ 2,000 $
100 $ 200 $ 100 $ - $
35 $
10 $ 2,000 $ 500 $ 5,000 $
$ $ $
Asphalt Patches Uneven/Broken SF SF
- 100 200 100 300 200 100 200
8
50 200
100 100
300 200
800 200
12
13
14
15
16
17
18
19
20
Sign poles - straightening, repairs Street light poles - refinishing
Parking meters, bike racks, bollards - straightening
Temporary sign removal
7 Hills Park - Walkway repairs
7 Hills Par - Barren Earth repair
7 Hills Park - Tree replacement
7 Hills Park - Tree pruning
7 Hills Park - Aerial Sculpture repairs
Subtotal (rounded)
Cost Estimating Contingency Add
Total Order of Magnitude Cost (rounded)