| |
A |
B |
C |
D |
E |
F |
G |
|---|
| 1 |
PRELIMINARY COST ESTIMATE |
| 2 |
|
|
|
|
|
|
|
| 3 |
2nd Street Public Parking Lot Improvement Project With |
| 4 |
Pemeable Paver Parking Lot Section |
| 5 |
ITEM # |
DESCRIPTION |
UNIT |
QUANTITY |
UNIT PRICE |
AMOUNT |
|
| 6 |
|
| 7 |
|
|
|
|
|
|
|
| 8 |
|
GENERAL |
|
|
|
|
|
| 9 |
1 |
Mobilization (include performance & payment bonds, maintenance
warranty bond, insurance, city business permit and all other
permits) |
LS |
1 |
$ 9,000.00 |
$ 9,000.00 |
|
| 10 |
2 |
Traffic Control (include RR flagging as needed, barricades, temporary
signage) |
LS |
1 |
$ 2,500.00 |
$ 2,500.00 |
|
| 11 |
3 |
Erosion & Sediment Control Measures
|
LS |
1 |
$ 1,800.00 |
$ 1,800.00 |
|
| 12 |
4 |
Construction Staking (for curb, planters, pipe, etc.) |
LS |
1 |
$ 2,800.00 |
$ 2,800.00 |
|
| 13 |
5 |
Site Restoration & Cleanup |
LS |
1 |
$ 3,200.00 |
$ 3,200.00 |
|
| 14 |
|
|
Subtotal for GENERAL = |
$ 19,300 |
|
| 15 |
|
DEMOLITION |
|
|
|
|
|
| 16 |
6 |
Remove Asphalt Concrete (include sawcut, haul off and disposal).
Ex. lot and alley |
SF |
37000 |
$ 0.70 |
$ 25,900.00 |
| 17 |
7 |
Remove 2nd street concrete sidewalk (includes haul off and disposal)
|
SF |
1100 |
$ 1.00 |
$ 1,100.00 |
|
| 18 |
8 |
Subgrade excavation (include earthwork, haul off and disposal) |
CY |
1600 |
$ 14.00 |
$ 22,400.00 |
| 19 |
9 |
Remove, Relocate &/or Reinstall Signs |
LS |
1 |
$ 1,000.00 |
$ 1,000.00 |
|
| 20 |
|
|
Subtotal for DEMOLITION = |
$ 50,400 |
|
| 21 |
|
PARKING LOT & 2ND ST. IMPROVEMENTS |
|
|
|
|
|
| 22 |
10 |
Extruded Concrete Curb, misc. locations |
LF |
350 |
$ 9.00 |
$ 3,150.00 |
|
| 23 |
11 |
Concrete commercial d/w approaches, 2nd St. & Alley's |
EA |
4 |
$ 3,200.00 |
$ 12,800.00 |
| 24 |
12 |
4" Concrete pavers on: 2" bedding layer, 4" choker rock, 12" of
#2 aggregate (Cultural Center parking lot section) |
SF |
31500 |
$ 5.50 |
$ 173,250.00 |
| 25 |
13 |
Permeable Concrete Sidewalk (internal & 2nd) (4" thick on 2" of
3/4"-0) |
SF |
2275 |
$ 6.00 |
$ 13,650.00 |
| 26 |
14 |
Tactile warning strips, walkway to parking areas |
EA |
4 |
$ 350.00 |
$ 1,400.00 |
|
| 27 |
15 |
Concrete wheel stops |
EA |
76 |
$ 140.00 |
$ 10,640.00 |
| 28 |
16 |
Recycling/refuse facilities, CMU walls with chain link gates |
EA |
2 |
$ 5,800.00 |
$ 11,600.00 |
| 29 |
17 |
Compaction Tests (parking lot) |
EA |
12 |
$ 65.00 |
$ 780.00 |
|
| 30 |
|
Subtotal for PARKING IMPROVEMENTS = |
$ 227,270 |
|
| 31 |
ITEM # |
DESCRIPTION |
UNIT |
QUANTITY |
UNIT PRICE |
AMOUNT |
|
| 32 |
|
| 33 |
|
TRAFFIC SIGNING AND STRIPING |
|
|
|
|
|
| 34 |
18 |
Street Signs incl. posts, no parking , one way, ADA, etc. |
EA |
12 |
$ 225.00 |
$ 2,700.00 |
|
| 35 |
19 |
Pavement striping, internal crosswalks, ADA, stalls, etc. |
LS |
1 |
$ 6,000.00 |
$ 6,000.00 |
|
| 36 |
|
Subtotal for TRAFFIC SIGNING AND STRIPING = |
$ 8,700 |
|
| 37 |
|
LANDSCAPE & IRRIGATION |
|
|
|
|
|
| 38 |
20 |
Street Trees, 2nd Street & internal lot w/ root barriers |
EA |
20 |
$ 450.00 |
$ 9,000.00 |
|
| 39 |
21 |
Amend/Place topsoil, weed fabric & barkdust, 2nd st. & internal
lot
|
LS |
1 |
$ 2,200.00 |
$ 2,200.00 |
|
| 40 |
22 |
Landscape, shrubs and groundcover
|
LS |
1 |
$ 7,500.00 |
$ 7,500.00 |
|
| 41 |
23 |
Irrigation heads, piping, backflow preventer, battery timer &
control valves
|
LS |
1 |
$ 5,000.00 |
$ 5,000.00 |
|
| 42 |
|
Subtotal for LANDSCAPE & IRRIGATION = |
$ 23,700 |
|
| 43 |
|
UTILITIES |
|
|
|
|
|
| 44 |
|
Storm System Improvements |
|
|
|
|
|
| 45 |
24 |
Pipe, 8-inch PVC w/ rock backfill |
LF |
175 |
$ 35.00 |
$ 6,125.00 |
|
| 46 |
25 |
Pipe, 4-inch HDPE slotted drainline in sock, pavement section
overflow drains, 4 each running N-S |
LF |
480 |
$ 8.00 |
$ 3,840.00 |
|
| 47 |
26 |
Wyes, 8", connect to ex. 12" in 2nd St. & 10" in Alley |
EA |
2 |
$ 450.00 |
$ 900.00 |
|
| 48 |
27 |
Pavement remove/restore, (2nd St.) |
SY |
8 |
$ 60.00 |
$ 480.00 |
|
| 49 |
28 |
Ditch inlets, construct in new landscape planters |
EA |
3 |
$ 1,100.00 |
$ 3,300.00 |
|
| 50 |
29 |
Manholes |
EA |
1 |
$ 2,200.00 |
$ 2,200.00 |
|
|
|
|
|
|
|
|
|
|---|
| 51 |
|
Subtotal for STORM SYSTEM IMPROVEMENTS = |
$ 16,845 |
|
| 52 |
|
Water System Improvements |
|
|
|
|
|
| 53 |
30 |
Water Service, 3/4" by City |
EA |
1 |
$ 575.00 |
$ 575.00 |
|
| 54 |
31 |
Water meter, 3/4" by City |
EA |
1 |
$ 1,200.00 |
$ 1,200.00 |
|
| 55 |
32 |
Pavement remove/restore (2nd St,) |
SY |
5 |
$ 60.00 |
$ 300.00 |
|
| 56 |
|
Subtotal for WATER SYSTEM IMPROVEMENTS = |
$ 2,075 |
|
| 57 |
|
Power & Lighting Improvements |
|
|
|
|
|
| 58 |
33 |
Parking lot lights, bronze fiberglass pole w/ double 100w HPS
shoebox heads and junction boxes |
EA |
2 |
$ 3,500.00 |
$ 7,000.00 |
|
| 59 |
34 |
Controller (Connection by PGE) |
LS |
1 |
$ 1,800.00 |
$ 1,800.00 |
|
| 60 |
35 |
Conduit, 2-inch pvc (electrical grade) |
LF |
180 |
$ 7.00 |
$ 1,260.00 |
|
| 61 |
36 |
Pull boxes |
EA |
3 |
$ 85.00 |
$ 255.00 |
|
| 62 |
|
Subtotal for POWER & LIGHTING IMPROVEMENTS = |
$ 10,315 |
|
| 63 |
|
OTHER COSTS |
|
|
|
|
|
| 64 |
37 |
Engineering Survey & Design |
LS |
1 |
$ 15,000.00 |
$ 15,000.00 |
| 65 |
38 |
Construction Management |
LS |
1 |
$ 4,000.00 |
$ 4,000.00 |
|
| 66 |
|
Subtotal for OTHER COSTS = |
$ 19,000 |
|
| 67 |
|
Subtotal for CONSTRUCTION COSTS = |
$ 358,605.00 |
|
| 68 |
|
|
Project Contingency (10%) |
$ 37,761.00 |
|
| 69 |
|
|
|
|
TOTAL = |
$ 415,366.00 |
|
| 70 |
|
Notes and Clarifications: |
|
|
|
|
|
| 71 |
|
|
|
|
|
|
|
| 72 |
|
1. The existing parking lot lighting is most likely substandard
and will need to be evaulated |
|
| 73 |
|
in the future. The existing lighting is located on the alley
and second street power poles. |
|
| 74 |
|
If the existing parking lighting is found to be sufficient,
estimate items #34-36 can be |
|
| 75 |
|
removed. |
|
|
|
|
|
| 76 |
|
|
|
|
|
|
|
| 77 |
|
2. The two recycling and refuse facilities might be relocated
to the north side of the alley |
|
| 78 |
|
to gain several parking stalls and to decrease the walking
distance to the facilities. |
|
| 79 |
|
|
|
|
|
|
|
| 80 |
|
3. The irrigation meter cost does not include system development
charges. |
|
|
| 81 |
|
|
|
|
|
|
|
| 82 |
|
4. Undergrounding of the overhead utilities on the north side
of the alley was not considered |
|
| 83 |
|
in the estimate but should be completed to improve the appearance
of the area. |
|
| 84 |
|
|
|
|
|
|
|
| 85 |
|
5. The 2001 drainage master plan indicates that the piping systems
in the near vicinity of |
|
| 86 |
|
the project site do have adequate capacity. The last pipe
runs before discharging into a |
|
| 87 |
|
open channel, pipe #1450 (546' of 18") and #1451 (83' of
18"), are undersized and need |
|
| 88 |
|
to be replaced in the future with 24" pipes at a 2001 cost
of $140,000. CIP #C4A & #C4B. |
| 89 |
|
Reducing or eliminating the flow from the +/-1 acre of impervious
parking area may |
|
| 90 |
|
allow the existing system to adequately convey the basin
flows. |
|
|
|
| 91 |
|
|
|
|
|
|
|
| 92 |
|
6. The cost estimate assumes that the subgrade of the parking
lot has an infiltration |
|
| 93 |
|
rate of 1/4" per hour or less. The voids in the baserock
will provide a significant detention |
|
| 94 |
|
volume which when hydraulically modeled, may reduce or eliminate
the need to replace |
|
| 95 |
|
the downstream piping system. The 4-inch pipe is the detention
overflow piping. |
|
| 96 |
|
|
|
|
|
|
|
| 97 |
|
7. If it is found through infiltration testing that the rate exceeds
0.5" per hour, the paver |
|
| 98 |
|
baserock section & excavation can be reduced, at a significant
cost savings. The 4-inch |
|
| 99 |
|
detention over flow pipe can also be eliminated. The storm
system in the landscape planters |
| 100 |
|
might also be eliminated if the infiltration rate exceeds
0.5" per hour. The parking lot grading |
|
|
|
|
|
|
|
|
|---|
| 101 |
|
plan should direct excess runoff from the pavers to the inlets
on 2nd street, as currently |
|
| 102 |
|
occurs today for overflow of large storm events. |
|
|
|
|
| 103 |
|
|
|
|
|
|
|
| 104 |
|
8. Additional paving should be completed on private property north
of the public alley, with |
|
| 105 |
|
input from the various property owners and other stakeholders. |
|
|
|
| 106 |
|
|
|
|
|
|
|
| 107 |
|
9. Raised planters and pots adjacent to the buildings on the north
side of the alley |
|
| 108 |
|
were not included in this estimate. |
|
|
|
|
|
| 109 |
|
|
|
|
|
|
|
| 110 |
|
10. Collection systems for the runoff from the existing rooftops
will need to be installed |
|
| 111 |
|
by the private property owners, and is was not considered
in this estimate. |
|
|
| 112 |
|
An existing 10-inch mainline is available for raindrain connections
in the public alley. |
|
