HomeMy WebLinkAboutTIS 2024-08-26 Item 2A - Bid Award - 2023 CBD Sanitary Sewer Rehabilitation Phase 4B: Cured-In-Place Pipe Sewer Mains Lining with Iron Horse LLC
INFORMATIONAL MEMORANDUM
TO:Transportation and Infrastructure Services Committee
FROM:Adib Altallal,UtilitiesEngineer
CC:Mayor Thomas McLeod
DATE:August23, 2024
SUBJECT:2023 Central Business District Sanitary Sewer Rehabilitation Phase 4B
Project No. 80040201
ConstructionBid Award
ISSUE
Approve construction bid award with Iron Horse LLC for 2023 Central Business District Sanitary Sewer Rehabilitation Phase
4B Project.
BACKGROUND
The City of Tukwila has thousands of feet of aging sewer mains throughout, but especially in the Central Business District
(CBD). The City has been conducting regular inspections and assessments of mains at the CBD for the last 15 years. A
typical repair includes digging up the road to create a deep trench where the new sewer main will go. It is costly and typically
inconvenient to the public. In certain scenarios, an aging sewer main loses some of its structural integrity, but has not started
cracking, sagging, or crumbling. In such cases, we are able to utilize a minimally-disruptive technology where a lining is
inserted through a manhole and into the existing sewer main to strengthen it and increase its useful life. The aforementioned
trenchless technology minimizes disruptions to the public and greatly reduces the damage to the road. The technology is
utilized when possible, but it is not applicable in all scenarios.
DISCUSSION
A call for bids was advertised for the 2023 Central Business District Sanitary Sewer Rehabilitation Phase 4B Project on June
26, and July 3, 2024. two bids were opened on July 18, 2024, and the confirmed lowest bidder was Iron Horse LLC with a bid
of $1,339,083.18. T was $1,307,633.22.
FINANCIAL IMPACT
Construction costs associated with the 2023 Central Business District Sanitary Sewer Rehabilitation Phase 4B are within the
approved budget and will be funded by the sewer enterprise fund.
Cost Estimate Fund Source 2023-24 Construction Budget
Contract $1,339,083.18
Contingency 15% 200,862.48
Total $1,539,945.66 Sewer Fund $1,500,000
RECOMMENDATION
Council is being asked to approve the construction award with Iron Horse LLC in the amount of $1,339,083.18 for the 2023
Central Business District Sanitary Sewer Rehabilitation Phase 4B Project and consider this item on the Consent Agenda at the
September 16, 2024 Regular Meeting.
Attachments: 2023 CIP, Page 65
Iron Horse LLC Construction Contract
Bid Tabulation
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
1616
1717
1818
1919
2020
2121
Iron Horse LLC SAK Construction, LLC
Un1Price # Total Amount Quanti Una Unit Price Total Amount Quanti Unit Unit Price Total Amount
$ 75,000
$ 2,500
$ 27,158
$ 145,000
$ 35,000
$ 45,000
$ 1,500
$ 125,500
$ 388,880
$ 342,550
$ 75,780
$ 31,050
$ 32,400
$ 1,000
$ 25,000
$ 1,353,318.00
Washington State Sales Tax 10.2% I $ 121,034.22 I Washington State Sales Tax 10.2% I $ 123,944.18 I Washington State Sales Tax 10.2% I $ 138,038.44
Total $ 1,307,644.22 Total $ 1,339,083.18 Total $ 1,491,356.44
$ 75,000
$ 2,500
$ 27,158
$ 145,000
$ 35,000
$ 45,000
$ 1,500
$ 125,500
$ 80
$ 130
$ 180
$ 690
$ 1,200
$ 500
$ 25,000
Subtotal
{\g
„
$ 25,000 $ 25,000
Subtotal $ 1,215,139.00
MOO
$ 36,000
$ 90,000
$ 35,000
$ 42,000
$ 32,000
$ 65,000
$ 335,409
$ 268,770
$ 109,460
$ 45,000
$ 40,500
$ 9,000
°NM
Apparent Low Bidder
$ 36,000
$ 90,000
$ 35,000
$ 42,000
$ 32,000
$ 65,000
$ 69
$ 102
$ 260
$ 1,000
$ 1,500
$ 4,500
LS
LS
LS
LS
LS
LS
LS
LS
EA
LS
LF
LF
0 $ 25,000
$ 1,186,610.00
$ 107,900
$ 5,800
$ 24,900
$ 72,000
$ 18,400
$ 27,500
$ 18,400
$ 74,800
$ 437,490
$ 263,500
$ 54,730
$ 23,400
$ 31,050
$ 1,740
$ 107,900
$ 5,800
$ 24,900
$ 72,000
$ 18,400
$ 27,500
$ 18,400
$ 74,800
$ 130
$ 520
$ 1,150
$ 870
15 'Force Account - Minor Changes 1 1 I EA $ 25,00
Subtotal
\}/gg&:�
\
City of Tukwila
2023 Central Business District Sanitary Sewer Rehabilitation - Phase 4B
Item No. I Item Description
Mobilization
Type B Progress Schedule
Traffic Control - Off -Duty Uniformed Police Officer
Traffic Control - Temporary Traffic Control and Flagger Labor
Pre -Cleaning Video Inspection
Clean and Prep Sewer Prior to Construction
Video Inspection Prior to Construction
Provide, Install, and Manage Wastewater Bypasses
8-inch Main Line CIPP
12-inch Main Line CIPP
20-inch Main Line CIPP
24-inch Main Line CIPP
Trenchless Lateral Connection Reinstatement and Packer Injection Grouting
Trenchless Outside Manhole Drop Connection Reinstatement