HomeMy WebLinkAboutTIC 2020-07-20 Item 2D - Bid Award - Riverton Creek Flap Gate Removal with AtWork Comercial EnterprisesCity of Tukwila Allan Ekberg, Mayor
Public Works Department - Henry Hash, Director
INFORMATIONAL MEMORANDUM
TO: Transportation and Infrastructure Committee
FROM: Henry Hash, Public Works Director
BY: Mike Perfetti, Habitat Project Manager
CC: Mayor Ekberg
DATE: July 17, 2020
SUBJECT: Surface Water Fund - Riverton Creek Flap Gate Removal Project Restoration Phase
Project No. 99830103
Bid Award
ISSUE
Award a contract to AtWork Commercial Enterprises, LLC for construction of the Riverton Creek Flap Gate Removal Project
Restoration Phase.
BACKGROUND
This project is the second and final contract to construct the Riverton Creek Flap Gate Removal Project. This phase will
restore 1.48 acres of native riparian vegetation along Riverton Creek and 0.45 acres along the Duwamish River.
DISCUSSION
The Riverton Creek Flap Gate Removal Project Restoration Phase call for bids was sent on June 24, 2020 to organizations
on the MRSC small works roster that provide restoration services. Three bids were received via e-mail by the due date of
July 13, 2020. The bids were checked and tabulated. The apparent low bidder is At Work! with a bid of $106,090.60. The
Engineer's Estimate was $112,290.75.
FISCAL IMPACT (All amounts include sales tax)
The Riverton Creek Flap Gate Removal Project construction, including both phases, was initially budgeted at $918,000.
The low bid for the first phase, which was recently awarded, exceeded the budget and is utilizing all CIP funds dedicated for
this project. Staff proposes to transfer budget from the 205 Levee Certification Project, which is not currently needed since
the City has petitioned the King County Flood Control District to fund the rebuilding of the 205 Levee.
Bid Results Estimate Budget
Bid Amount 106,090.60 112,290.75
Contingency (10%) 10,609.06
Funding from 205 Levee Certification CIP 66,699.66
WRIA 9/CWM grant 50,000.00
Total $116,699.66 $112,290.75 $116,699.66
RECOMMENDATION
Council is being asked to award the construction contract for the Riverton Creek Flap Gate Removal Project to AtWork
Commercial Enterprises, LLC in the amount of $106,090.60 and consider this item on the Consent Agenda at the August 3,
2020 Regular Meeting.
Attachments: CIP Page 93
CIP Page 94
Bid Tabulation
https://tukwilawa.sharepoint.com/sites/publicworks/engineering/PW Drop Box/01 TIC Agenda/Agenda Items/TIC 07-20-2020/4. Riverton Creek Flapgate Removal PH 2 Bid Award/Info Memo Bid Award —Riverton Creek
Restoration_20200720.docx 33
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2019 to 2024
PROJECT:
Riverton Creek Flap Gate Removal Project No. 99830103
Remove two culverts and flap gates at Duwamish River; install pipe arch, create open channel
DESCRIPTION:
confluence, install trail bridge over new channel, restore/revegetate 200 feet of creek channel and
450 ft. of pond shoreline.
JUSTIFICATION:
Increase available salmonid rearing habitat and increase flood refuge in lower Duwamish River.
Improve fish access to Riverton Creek and enhance salmon rearing and resting area.
STATUS:
Design underway in 2018. Construction grant of $846k from WA State RCO.
MAINT. IMPACT:
Expected to increase maintenance.
COMMENT:
Project used as mitigation for East Marginal Way Pipe Replacement Project and HPA
Control #133763-1 requires work to be completed by June 11, 2019, which will need to be extended.
FINANCIAL Through Estimated
(in $000'sl 2017 2018 2019 2020 2021 2022 2023 2024 BEYOND TOTAL
EXPENSES
Design
204
100
40
344
Land (R/W)
0
Monitoring
15
15
15
15
15
15
90
Const. Mgmt.
184
184
Construction
918
918
TOTAL EXPENSES
204
1 100
1 1,142
1 15
15
1 15
15
15
15
1,536
FUND SOURCES
Awarded Grant
72
847
919
Proposed Grant
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
132
100
295
15
15
15
15
15
15
617
TOTAL SOURCES
204
100
1,142
15
15
15
15
15
15
1,536
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2019 - 2024 Capital Improvement Program 93 34
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2019 to 2024
PROJECT: Tukwila 205 Levee Certification Project No. 91341203
DESCRIPTION: Obtain levee certification for the Tukwila 205 Levee.
The US Army Corps of Engineers no longer provides levee certification services to federally authorized
JUSTIFICATION: levees. The existing certification expired in August of 2013. Certification is required for the Federal
Emergency Management Agency to accreditate the levee system as providing a 100-year level of
flood protection.
STATUS: Phase I was a overview of entire levee system and Phase II includes identification of levee deficiencies.
MAINT. IMPACT: Certification process is expected to lead to additional levee repair projects that are required to meet the
certification criteria. Certification is valid for a 10-year period.
Costs listed in 2019 through 2022 are estimates for potential repairs that would be grant dependent. King
COMMENT: County Flood Control District's Opportunity Grant Program currently has $63k per year. The Army Corps of
Engineers is currently designing a levee repair project near Mitchell Moving, GACO, and Segale Properties with
construction in 2019. Overall costs for Corps/Flood District project is $55 million, with no City funding.
FINANCIAL Through Estimated
(in $000's) 2017 2018 2019 2020 2021 2022 2023 2024 BEYOND TOTAL
EXPENSES
Certification Phase 1
350
350
Certification Phase 11
93
220
250
563
Design
275
275
Const. Mgmt.
30
115
600
745
Construction
200
750
4,000
4,950
TOTAL EXPENSES
443
220
525
230
865
4,600
0
0
0
6,883
FUND SOURCES
KC Flood Control
113
63
63
63
63
63
63
63
63
617
Proposed Grants
150
780
4,500
5,430
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
330
157
462
17
22
37
(63)
(63)
(63)
836
TOTAL SOURCES
443
220
525
230
1 865
1 4,600
1 01
01
01
6,883
Project Location:
Entire System '
s
2019 - 2024 Capital Improvement Program 94 35
Riverton Creek Flapgate Removal Project - Phase 2: Restoration
Certified Bid Tab
ITEM NO.
ITEM
UNITS
QUANTITY
1
Unexpected Site Changes
FA
1
2
Site Preparation
LS
1
3
Wattles
LF
1,000
4
Bark and Wood Chip Mulch
CY
105
5
PSIPE - Acer macrophyllum, BR
EA
10
6
PSIPE - Alnus rubra, BR
EA
30
7
PSIPE - Arbutus menzesii, 10" tube
EA
10
8
PSIPE - Betula papyrifera, BR
EA
125
9
PSIPE - Cornus nuttallii, #1
EA
10
10
PSIPE - Cornus sericia, BR
EA
231
11
PSIPE - Corylus cornuta, BR
EA
125
12
PSIPE - Fraxinus Iatifolia, BR
EA
47
13
PSIPE - Holodiscus discolor, BR
EA
416
14
PSIPE - Lonicera involucrata, BR
EA
131
15
PSIPE - Malus fusca, BR
EA
7
16
PSIPE - Physocarpus capitatus, BR
EA
131
17
PSIPE - Picea sitchensis, #1
EA
47
18
PSIPE - Populus basamifera, BR
EA
30
19
PSIPE - Populus tremuloides, BR
EA
7
20
PSIPE - Prunus emarginata, BR
EA
7
21
PSIPE - Pseudotsuga menzesii, #1
EA
145
22
PSIPE - Ribies sanguineum, BR
EA
416
23
PSIPE - Rosa nutkana, BR
EA
456
24
PSIPE - Rosa pisocarpa, BR
EA
131
25
PSIPE - Rubus parvifolium, BR
EA
416
26
PSIPE - Rubus spectabilis, BR
EA
131
27
PSIPE - Salix hookeriana, LS
EA
270
28
PSIPE - Salix Iucida (lasiandra), BR
EA
47
29
PSIPE - Salix scouleriana, LS
EA
265
30
PSIPE - Salix sitchensis, LS
EA
265
31
PSIPE - Sambucus racemosa, BR
EA
547
32
PSIPE - Spiraea douglasii, BR
EA
40
33
PSIPE - Symphoricarpos alba, BR
EA
150
34
PSIPE - Thuja plicata, #1
EA
147
35
PSIPE - Tsiga heterophylla, #1
EA
22
Subtotal:
Sales Tax
Total Construction Cost:
Errors in Contractor Bid Proposals:
1 Amount on bid amount shown as $6,972.16
Engineer's Estimate
Atwork
Applied Ecology
Daramola
UNIT PRICE
AMOUNT
UNIT PRICE
AMOUNT
UNIT PRICE
AMOUNT
UNIT PRICE
AMOUNT
10,000.00
15,000.00
10,000.00
10,000.00
10,000.00
17,500.00
10,000.00
10,000.00
36,000.00
10,000.00
10,000.00
50,000.00
15,000.00
17,500.00
2.25
36,000.00
50,000.00
3.50
3,500.00
2,250.00
5.88
5,880.00
6.00
6,000.00
45.00
4,725.00
67.00
7,035.00
69.05
7,250.25
60.00
6,300.00
14.00
140.00
13.00
130.00
16.76
167.60
20.00
200.00
14.00
420.00
13.00
390.00
16.76
502.80
20.00
600.00
16.00
160.00
18.00
180.00
22.69
226.90
20.00
200.00
14.00
1,750.00
13.00
1,625.00
16.76
2,095.00
20.00
2,500.00
18.50
185.00
18.00
180.00
22.69
226.90
20.00
200.00
14.00
3,234.00
13.00
3,003.00
16.76
3,871.56
20.00
4,620.00
14.00
1,750.00
13.00
1,625.00
16.76
2,095.00
20.00
2,500.00
14.00
658.00
13.00
611.00
16.76
787.72
20.00
940.00
14.00
5,824.00
13.00
5,408.00
16.76
6,972.16
20.00
8,320.00
14.00
1,834.00
13.00
1,703.00
16.76
2,195.56
20.00
2,620.00
14.00
98.00
13.00
91.00
16.76
117.32
20.00
140.00
14.00
1,834.00
13.00
1,703.00
16.76
2,195.56
20.00
2,620.00
18.50
869.50
18.00
846.00
22.69
1,066.43
20.00
940.00
14.00
420.00
13.00
390.00
16.76
502.80
20.00
600.00
14.00
98.00
13.00
91.00
16.76
117.32
20.00
140.00
14.00
98.00
13.00
91.00
16.76
117.32
20.00
140.00
18.50
2,682.50
18.00
2,610.00
22.69
3,290.05
20.00
2,900.00
14.00
5,824.00
13.00
5,408.00
16.76
6,972.16
1 20.00
8,320.00
14.00
6,384.00
13.00
5,928.00
16.76
7,642.56
1 20.00
9,120.00
14.00
1,834.00
13.00
1,703.00
16.76
2,195.56
20.00
2,620.00
14.00
5,824.00
13.00
5,408.00
16.76
6,972.16
20.00
8,320.00
14.00
1,834.00
13.00
1,703.00
16.76
2,195.56
20.00
2,620.00
13.75
3,712.50
7.00
1,890.00
16.50
4,455.00
20.00
5,400.00
14.00
658.00
13.00
611.00
16.76
787.72
20.00
940.00
13.75
3,643.75
7.00
1,855.00
16.50
4,372.50
20.00
5,300.00
13.75
3,643.75
7.00
1,855.00
16.50
4,372.50
20.00
5,300.00
14.00
7,658.00
13.00
7,111.00
16.76
9,167.72
20.00
10,940.00
14.00
560.00
13.00
520.00
16.76
670.40
20.00
800.00
14.00
2,100.00
13.00
1,950.00
16.76
2,514.00
20.00
3,000.00
18.50
2,719.50
18.001
2,646.00
22.691
3,335.43
20.00
2,940.00
18.50
407.00
18.001
396.00
22.691
499.18
20.00
440.00
102, 082.50
10, 208.25
112,290.75
96,446.00
9,644.60
106,090.60
141,830.70
14,183.07
156,013.77
168, 540.00
16, 854.00
21 185,394.00
Corrected bid
m
Riverton Creek Flapgate Removal Project - Phase 2: Restoration
Certified Bid Tab
Engineer's Estimate Atwork Applied Ecology Daramola
ITEM NO, ITEM UNITS QUANTITY UNIT PRICE AMOUNT UNIT PRICE AMOUNT UNIT PRICE AMOUNT UNIT PRICE AMOUNT
2 Total bid proposal was $155,275.95
Certified by Date 5
Mike Perfetti, Habitat Project Manager
7/15/2020
37