HomeMy WebLinkAboutBID - 7579 RIVER RESTORATION AT WOODWARD TECHNOLOGY CENTER LOT 4ADDENDUM NO. 1
SPECIFICATIONS AND CONTRACT DOCUMENTS
Description of BID 7579: River Restoration at Woodward Technology Center Lot 4
OPENING DATE: 3:00 PM (Our Clock) December 6, 2013
To all prospective bidders under the specifications and contract documents described
above, the following changes/additions are hereby made and detailed in the following
sections of this addendum:
Exhibit 1 – Revised Bid Schedule
Exhibit 2 – Questions & Answers
Exhibit 3 – Clarifications & Revisions
Exhibit 4 – Flood Plain Use Permit
Exhibit 5 – Landscape Plan
Please contact John Stephen, CPPO, LEED AP, Senior Buyer at (970) 221-6777 with
any questions regarding this addendum.
RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN
STATEMENT ENCLOSED WITH THE BID/QUOTE STATING THAT THIS
ADDENDUM HAS BEEN RECEIVED.
Financial Services
Purchasing Division
215 N. Mason St. 2nd Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
970.221.6707
fcgov.com/purchasing
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 1 of 15
EXHIBIT 1 – REVISED BID SCHEDULE
(Please note that the bid schedule has also been uploaded as a separate Microsoft Excel document)
BID
NO.
CONTRACT
ITEM NO.
CONTRACT DESCRIPTION UNIT PLAN UNIT PRICE TOTAL
1202 Removal of Concrete Revetment LF 270 $ ‐
2 203 Unclassified Excavation CY 16689 $ ‐
3 206 Structure Excavation CY 79 $ ‐
4 206 Structure Backfill (Class I) CY 76 $ ‐
5 207 Topsoil (6‐inch) (Redistribute) CY 21802 $ ‐
6 208 Erosion Control (SWMP & Maintenance) LS 1 $ ‐
7 208 Erosion Log (12 Inch) LF 230 $ ‐
8 208 Erosion Log (18 Inch) LF 2700 $ ‐
9 208 Erosion Control Supervisor HR 80 $ ‐
10 211 Dewatering and Diversion LS 1 $ ‐
11 212 Seeding (Native) AC 29 $ ‐
12 212 Soil Preparation AC 29 $ ‐
13 213 Mulching (Hydro Mulch) AC 30 $ ‐
14 213 Boulder Wall (Complete) LF 54 $ ‐
15 214 Deciduous Tree (3" Caliper) EA 233 $ ‐
16 214 Deciduous Tree (Container ‐ Contract Grow) EA 115 $ ‐
17 214 Deciduous Shrub (5 Gallon Container ‐ Contract Grow) EA 802 $ ‐
18 214 Brush Layer Cuttings (Live Stakes) EA 360 $ ‐
19 214 Live Plantings (Plugs ‐ Contract Grow) EA 76037 $ ‐
20 214 Landscape Maintenance (24 Months) LS 1 $ ‐
21 216 Coir Matting (Channel Bank Protection) SY 1738 $ ‐
22 216 Soil Retention Blanket (Straw/Coconut) SY 3693 $ ‐
23 216 Aggregate Base Course Class 5 or 6 (8' Loop Trail) CY 234 $ ‐
24 306 Recondition Subgrade (12 Inch Depth) SY 5956 $ ‐
25 506 Riprap (Type L, 9 Inch at Spillway) CY 72 $ ‐
26 506 Riprap (Type M, 12 Inch at FES outfall and bridge crossing) CY 46 $ ‐
27 506 Riprap (Type M, 12 Inch for Bank Stabilization) CY 5105 $ ‐
28 601 Concrete Class D (Boulder Wall ‐ Foundation) CY 4 $ ‐
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 2 of 15
EXHIBIT 2 – QUESTIONS & ANSWERS
29 601 Concrete Class D (Bridge Abutment, Wingwalls, Weir) CY 41 $ ‐
30 602 Reinforcing Steel LB 3600 $ ‐
31 603 12 Inch HDPE Storm Pipe (FES Included) LF 183 $ ‐
32 604 ADS Area Inlet EA 1 $ ‐
33 604 4" Irrigation Meter (Complete) EA 1 $ ‐
34 607 Fence (Tree Protection ‐ Adjustments) LS 1 $ ‐
35 607 Fence (Waterfowl Exclusion Fence) LF 5388 $ ‐
36 608 4' Crusher Fine Path (4 Inch) SY 2430 $ ‐
37 608 10' Poudre River Trail (Colored, 5 Inch) SY 3209 $ ‐
38 619 12"x4" Tapping Saddle EA 1 $ ‐
39 619 4" Gate Valve EA 1 $ ‐
40 619 4" Water Line (PVC C‐900) LF 62 $ ‐
41 621 24' Gravel Access Road LF 2020 $ ‐
42 622 Bench EA 8 $ ‐
43 623 12" x 17" Irrigation Valve Box (piezometer cover) EA 1 $ ‐
44 623 Irrigation Controller EA 1 $ ‐
45 623 Reduced Pressure Assembly EA 1 $ ‐
46 623 Master Control Valve Assembly EA 1 $ ‐
47 623 8" Gate Valve Assembly EA 1 $ ‐
48 623 6" Gate Valve Assembly EA 4 $ ‐
49 623 4" Gate Valve Assembly EA 1 $ ‐
50 623 8" Class 200 PVC Irrigation Mainline Pipe and Fittings LF 778 $ ‐
51 623 6" Class 200 PVC Irrigation Mainline Pipe and Fittings LF 5651 $ ‐
52 623 4" Class 200 PVC Irrigation Mainline Pipe and Fittings LF 441 $ ‐
53 623 3" Class 200 PVC Irrigation Mainline Pipe and Fittings LF 1437 $ ‐
54 623 3/4" Polyethylene Drip Lateral Pipe and Fittings LF 38133 $ ‐
55 623 16" Class 200 PVC Irrigation Pipe Sleeve LF 20 $ ‐
56 623 12" Class 200 PVC Irrigation Pipe Sleeve LF 188 $ ‐
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 3 of 15
EXHIBIT 2 – QUESTIONS & ANSWERS
57 623 8" Class 200 PVC Irrigation Pipe Sleeve LF 12 $ ‐
58 623 6" Class 200 PVC Irrigation Pipe Sleeve LF 8 $ ‐
59 623 2" Class 200 PVC Irrigation Pipe Sleeve LF 205 $ ‐
60 623 Drip Pipe Flush Cap Assembly EA 141 $ ‐
61 623 Remote Control Drip Valve Assembly (1") EA 47 $ ‐
62 623 Nelson Big Gun QC Valve Assembly (Female) EA 37 $ ‐
63 623 Nelson Big Gun Assembly with Male QC Valve and Riser EA 5 $ ‐
64 623 Manual Drain Valve Assembly EA 9 $ ‐
65 623 1" Quick Coupler Assembly EA 3 $ ‐
66 623 Drip Emitter Assembly (1 GPH) EA 3798 $ ‐
67 623 Control Wire LF 6870 $ ‐
68 623 Decoders EA 48 $ ‐
69 625 Construction Surveying LS 1 $ ‐
70 626 Mobilization LS 1 $ ‐
71 628 Bridge Girder and Deck Unit (20' Pedestrian Bridge) EA 1 $ ‐
72 629 Traffic Control (Bike and pedestrian) LS 1 $ ‐
$ ‐
BID
NO.
CONTRACT
ITEM NO.
CONTRACT DESCRIPTION UNIT
TRAIL
PLAN
UNIT PRICE TOTAL
ALT.
#1
Poudre trail completion (open the public) date: March 15,
2014 including adjustment to traffic control duration,
temporary construction fence placement / relocation
LS 1 $ ‐
ALT.
#2
Exclude Landscape Maintenance (24 months), Irrigation
System Operation, and Warrantee of plants
LS 1 $ ‐
TOTAL BASE BID
IN WORDS
ADD ALTERNATES
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 4 of 15
EXHIBIT 2 – QUESTIONS & ANSWERS
1. Will payment for Contract Grow need to be included?
No. Contract Grow material and delivery to the job site is being paid for directly
by City of Fort Collins. Proposals should include time to unload materials and
to care for plants once on-site.
2. When will Contract Grow material be available?
Material expected to be delivered to the site in June. An addendum will be
issued to extend the 180 days to complete work to allow time for installation of
contract grow material.
3. Is there a specific manufacturer required for the pedestrian bridge?
No. A list of manufacturers are provided in the specifications.
4. What measures, in addition to riprap, are required in the stabilization areas?
Installation to follow plans and details.
5. Is the amount of existing revetment material to be removed quantified?
Yes. It is provided in lineal feet in the contract documents.
6. Is the excavation for riprap (for bank stabilization) included in the
unclassified excavation line item?
Yes. See project special provisions Section 203.
7. Is the removal of the berm at the river’s edge (currently installed to manage
site runoff) included in the unclassified excavation line item?
Yes. See project special provisions Section 203.
8. Can excess material be left on site?
Material to be relocated and stockpiled on approved location on Lot 1 as
indicated in specifications. Stockpile location to be adjacent to the River
Restoration Proposed Construction Staging/Storage Area indicated on Sheet
C3.
9. Are amendments required for the stockpile topsoil?
Yes. Spreading of topsoil and incorporating soil amendment at 6
cu.yds./1,000sf is required per specifications.
10. Does the stockpile contain a lot of rock?
The stockpile is available for inspection during site walk.
11. Does the topsoil need to be screened before placement?
No methodogy is specified.
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 5 of 15
EXHIBIT 3 – CLARIFICATIONS & REVISIONS
12. Is amendment to be included or excluded from seed mix A, B, and C or live
plantings 1, 2 and 3?
Wetland areas will not have amendment. Wetland areas include seed mix C
area and live planting areas 1, 2, and 3.
13. There is a discrepancy between the quantity of irrigation pipe and control
wire. Are the bid quantities correct?
Yes. The quantities in the bid are correct.
14. Is maintenance (including contract grow material) to be provided for 3 years
or 2 years?
Addendum to clarify maintenance requirements.
15. Will the 24’ gravel access road need to be removed?
No, it will stay in place, refer to specifications.
16. Is the tap for irrigation provided by the City of Fort Collins?
No. The contractor is required to provide and install the irrigation tap as per
plans.
17. Will access need to be controlled after the Poudre River Trail is re-opened?
Yes. Yes. See project special provisions Section 630.
18. Is survey work being completed with current overlot grading work?
Yes. Overlot grading will be completed, a certified survey done prior to
Woodward turning the property over to the City and prior to beginning this
contract work in January.
19. Will Mortenson have requirements for the site access that crosses
Woodward property and their active construction site?
Safety is a concern to Mortenson and Woodward. Safety PPE measures to be
followed.
20. How long will this contract include paying for water?
Until substantial completion per specifications (section 214, page 27).
21. How should quantity of water be determined?
Contractor methods to determine water required.
22. Were there density test completed for fill areas under the proposed trail?
The majority of the trail is in cut condition and has been left native. Fill areas
were specified for compaction at 90% SPD. Subgrade preparation as per plans
and specifications is required by the contract.
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 6 of 15
EXHIBIT 3 – CLARIFICATIONS & REVISIONS
23. Is there a map of the inundation anticipated with a 2-year event between the
pond and the river?
Sheet C3A includes the 100- and 500-year flood limits and the two floodway
limits. In addition, a 2-year storm inundates much of the low lying area near the
river and a 5-year storm could inundate as far up as the proposed bike trail.
Other Information Given During Prebid Meeting & Site Walk:
A. Additional excavation will be required at several groups of existing trees. An
additional line item will be added to the bid for this work.
B. The area will be an active construction site with Mortenson working on the
Woodward campus, PRPA working on pole relocation, and CDOT possibly working
on the Mulberry Bridge.
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 7 of 15
EXHIBIT 3 – CLARIFICATIONS & REVISIONS
1. PROJECT AND BIDDING CLARIFICATIONS/ANSWERS TO QUESTIONS
a. Contractor shall not responsible for City Tap Fees associated with the 4”
Irrigation Tap.
b. The approved Floodplain Use Permit is attached – see Exhibit A.
c. Riprap specified for the river bank revetment (work detailed on sheet C4-C8)
should follow the detail on sheet C8. The riprap under the bridge should be Type
M riprap 24” deep on 6” of bedding. The riprap at the 12” FES outfall should be
Type M riprap 24” deep on 6” of bedding. The riprap at the Pond B spillway
should be Type L riprap 18” deep on 6” of bedding.
d. The crusher fine material is detailed on sheet C20 as 3/8” minus aggregate from
Colorado Lien Co. or approved equal. Class 6 aggregate base course is a larger
rock (3/4” minus) and is detailed in the CDOT standard specifications.
e. Soil Amendment shall be applied at the rate of 6 cu. yds. / 1,000 sq.ft. except in
areas designated on the plans as Mix 1, 2, 3 or Mix C where no amendment shall
be applied.
2. REVISIONS TO BID SCHEDULE
a. The following ADD ALTERNATES have been changed:
ALT #1 – no change
ALT #2 – Revised to: Exclude Landscape Maintenance (24 months),
Irrigation System Operation, and Warrantee of all plants
b. Revised Bid Schedule is attached as Exhibit 1 and as a separate Microsoft Excel
document.
3. REVISIONS TO PLANS
a. Seed Mixes and Landscape Notes on Sheet L9 have been revised. See attached
Exhibit B.
4. REVISIONS TO CONTRACT DOCUMENTS/SPECIFICATIONS
a. SECTION 00520 AGREEMENT – In Article 3, Section 3.1, and Section 3.2.1, the
Contract Time for the Work has been revised to be Substantially Complete within
two-hundred and ten (210) calendar days after the date with the Contract Times
commence. On page SP-12 regarding Milestone 3, Substantial Completion has
been revised to 210 days after Notice to Proceed.
b. On page SP-12, (11) Seeding has been added to the list of Salient features to
be shown on the Contractor's Progress Schedule.
5. REVISIONS TO PROJECT SPECIAL PROVISIONS
a. REVISION OF SECTION 107 LEGAL RELATIONS AND RESPONSIBILITIES
TO PUBLIC – Subsection 107.18 is hereby revised as follows: For this project all
insurance certificates shall name The City of Fort Collins, Woodward Inc., and
Mortenson Construction as additionally insured parties.
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 8 of 15
b. REVISION OF SECTION 207 TOPSOIL –
i. In Subsection Properties of Topsoil, maximum size of stones and or organic
debris allowed has been changed from 3 inch to 6 inch.
ii. Replace the last paragraph under Pay Item with the following: This item
includes distributing 6 inches of topsoil across the entire site and as
directed by the City representative. All work necessary to meet the 6"
specification is considered coincident to the work. This item also
includes any fine grading required along the river banks as detailed in
the plans.
c. REVISION OF SECTION 212 SEED, SOIL PREPARATION
i. In Subsection 212.02 (b)2. Soil Preparation, replace paragraph four
beginning with ‘Soil Amendment shall be applied…’ with the following: Soil
Amendment shall be applied at the rate of 6 cu. yds. / 1,000 sq.ft.
except in areas designated on the plans as Mix 1, 2, 3 or Mix C where
no amendment shall be applied.
ii. Item (a) Soil Preparation under Subsection 212.06 has been deleted.
iii. In Subsection 212.06 (c) Seeding, the following has been added to
paragraph one: Seed parallel to the contour of finish grade.
iv. In Subsection 212.06 (c) Seeding, replace the third paragraph beginning
with ‘In areas designated as…’ with the following: When requested by the
Contractor and approved by the Owner’s Representative, seeding may
be accomplished by broadcast seeding. Seed rates in these areas
shall be doubled when broadcast methods are used.
v. In Subsection 212.07 Method of Measurement, references to ‘fertilizer’ have
been deleted.
vi. In Subsection 212.08 Basis of Payment, reference to ‘sod’ has been
deleted.
d. REVISION OF SECTION 213 MULCHING – The following has been added to
Subsection 213.02:
i. Add to 213.02: - Hydomulch shall be uniformly applied over seeded
and wetland areas at a rate of 2,500 pounds per acre. No tackifier shall
be used in hydromulch mixture.
The hydromulch material for hydraulic mulching shall consist of virgin
wood fibers manufactured expressly from clean whole wood chips.
The chips shall be processed in such a manner as to contain no
growth or germination inhibiting factors. Fiber shall not be produced
from recycled materials such as sawdust, paper, cardboard, or residue
from pulp and paper plants. The wood cellulose fiber mulch shall be
dyed green to aid in visual metering during application. The dye shall
be biodegradable and not inhibit plant growth. The wood cellulose
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 9 of 15
fibers of the mulch must maintain uniform suspension in water under
agitation. Upon application, the mulch material shall form a blotter-like
mat covering the ground. This mat shall have the characteristics of
moisture absorption and percolation and shall cover and hold seed in
contact with the soil. The Contractor shall obtain certifications from
suppliers that laboratory and field testing of their product has been
accomplished, and that it meets all of the foregoing requirements
pertaining to wood cellulose fiber mulch.
The wood cellulose fiber mulch shall conform to the following
specifications:
1. Percent moisture content 10.0% ± 3.0%
2. Percent Organic Matter* 99.3% ± 0.2% (Wood Cellulose Fiber)
3. Percent Ash Content* 0.7% ± 0.2%
4. pH 4.9 ± 0.5
5. Water Holding Capacity* 1200-1600 grams**
*Oven-Dried Basis
** Per 100 grams of fiber
The wood cellulose fiber mulch shall be packaged in units containing
current labels, with the manufacturer’s name, the net weight, and
certification that the material meets the foregoing requirements for
wood cellulose fiber mulch.
Hydraulic Mulching. Cellulose fiber mulch shall be added to water to
form a homogeneous slurry. The operator shall spray apply the slurry
mixture uniformly over the designated seeded area. Hydraulic
mulching shall not be done in the presence of free surface water.
Mixing procedure for the hydraulic mulch mixture shall be as follows:
1. Fill tank with water approximately ¼ full.
2. Continue filling while agitating with engine at full rpm.
3. Add wood cellulose fiber mulch. Do not add fertilizer.
e. REVISION OF SECTION 214 PLANTING –
i. References to ‘Boulder Wall’ have been revised to ‘Boulder Wall and
Benches’.
ii. In Subsection 214.04, under ‘Warranty’, Item 4 has been deleted.
Reference description of Alternates in the Bid Schedule.
iii. In Subsection 214.04, in paragraph beginning with ‘The Landscape
Establishment Period begins with…’, the last sentence stating ‘If the Notice
of Substantial Landscape Completion is issued at any other time, the
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 10 of 15
Landscape Establishment Period begins at the start of the next spring
planting season and lasts for a period of 24 months.’ has been deleted.
iv. In Subsection 214.04, the following has been added: Live Plant Mix 1, 2,
and 3 (wetland live plants) shall be excluded from warrantee and
replacement requirements.
v. In Subsection 214.05, delete reference to ‘tree wrap’.
vi. In Subsection 214.06, under Pay Item, add ‘Bench’ with Pay Unit ‘Each’.
vii. In Subsection 214.06 under Pay Item, replace ‘Alternate #2 Exclude
Landscape Maintenance (24 Months) and Warrantee of Live Plantings’ with
Alternate #2 Exclude Landscape Maintenance (24 months), Irrigation
System Operation, and Warrantee of Plants, Pay Unit: Each
f. REVISION OF SECTION 607 FENCES –
i. Reference to color ‘blaze orange’ has been deleted.
ii. Under subsection Clean-up, Sentence has been revised as follows: The
fence and posts shall be removed at the end of the Maintenance Period.
g. REVISION OF SECTION 623 IRRIGATION SYSTEM –
i. Subsection 623.27 shall include the following:
Irrigation System Operation: During the maintenance/warranty
Landscape Establishment period the Contractor shall energize and
winterize the irrigation system. Winterization may occur by operating
the drain valves on the system and using compressed air to evacuate
water through the drip zone and water gun quick coupler
valves. Irrigation drip zones for trees and shrubs are designed like a
standard irrigation system and the Contractor shall provide controller
programming and seasonal schedule adjustments to maintain plant
health during the maintenance/warranty period.
In addition, during the maintenance/warranty Landscape
Establishment period the Contractor shall perform the manual
operation of irrigating the native grass seed areas with the mobile
water guns. There are five (5) water guns specified for this project and
thirty-seven (37) quick coupler locations between which the water
guns must be relocated on a 1-2 hour schedule (peak season, July) per
location. This peak season manual movement of water guns is
anticipated to require one (1) person, 8 hours per day, 4 days per
week.
The minimal seasonal schedule for one (1) person, 8 hours per day, for
this manual operation shall be estimated at:
May- 2 days per week,
June- 3 days per week,
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 11 of 15
July and August- 4 days per week,
September- 3 days per week and
October- 2 day per week.
Typically in May and October irrigation is performed for only 1/2 the
month. During seed germination the Contractor may be required to
perform manual rotation of the water guns between the quick coupler
locations on the peak season schedule. This is an estimated
schedule and the Contractor shall be responsible for maintaining
proper soil moisture to promote seed germination and establishment
through the maintenance period.
ii. Under Subsection 623.33, add the following under Pay Item:
Irrigation System Operation (24 months), Pay Unit: Each
Alternate #2 Exclude Landscape Maintenance (24 months), Irrigation
System Operation, and Warrantee of Plants, Pay Unit: Each
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 12 of 15
EXHIBIT 4 - FLOODPLAIN USE PERMIT
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 13 of 15
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 14 of 15
EXHIBIT 5 - LANDSCAPE PLAN
Addendum 1 – 7579 River Restoration at Woodward Technology Center Lot 4 Page 15 of 15