Addendum 1 25-46 ARRC ITB BR 6.0 Bridge Cap Fabrication.pdf
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- 25-46 ARRC ITB BR 6. 0 Bridge Cap Fabrication
- Solicitation number
- 25-46 ARRC ITB BR 6.0 Bridge Cap Fabrication
- Issued by
- Aleutians East Borough, Alaska
About this file
This document is Addendum Number 1 issued by the Alaska Railroad Corporation (ARRC) for Invitation to Bid (ITB) No. 25-46-213487 for Bridge Cap Fabrication. The addendum, dated July 3, 2025, provides alternative specifications for steel bridge cap materials if the original W14x211 cap material cannot be sourced in time for the scheduled October 1, 2025 ship date. Bids will be received until 3:00 pm local time on July 16, 2025. The alternative material must meet specific criteria, including being new A709 GR50W3 (or A588) steel, conforming to Buy America requirements, and having similar dimensional characteristics to the original specification.
The addendum outlines detailed technical requirements for proposed alternate steel sections, including acceptable W shape sizes (W14-W18 range), minimum depth of 16", minimum flange width of 15.5", and minimum web and flange thickness of 5/8". Any proposed alternate section must maintain the original spacing, shim, and stiffener layout, with adjustments made to match the geometric specifications in the project plans. Critically, all proposed alternate sections must receive prior approval from the ARRC Bridge Engineer before a Purchase Order will be issued, ensuring that the replacement materials meet the project's technical and contractual standards.
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Other files
| File | Type | Posted |
|---|---|---|
| BR 6_0 Rehab Cap Fabrication.pdf | ||
| 25-46 ARRC ITB BR 6.0 Bridge Cap Fabrication.pdf |
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Text version
ALASKA RAILROAD CORPORATION
327 W. Ship Creek Ave.
Anchorage, AK 99501 ThompsonC@akrr.com
Phone 907-265-2068 Cell 907-854-3141
July 3, 2025
Addendum Number 1
Invitation to Bid 25-46-213487 25-46 ARRC ITB BR 6.0 Bridge Cap Fabrication
Closing date, offers will be received until 3:00 pm local time on July 16, 2025
This addendum is being issued to provide information as follows:
If fabricator is unable to source new, W14x211 cap material in the timeframe required to meet the 10/1/25 scheduled ship date, the fabricator may propose an alternate section to use in place of the W14x211 material. Criteria for replacement as follows:
Steel must be new, A709 GR50W3 (or A588), and have all necessary documentation to satisfy the requirements of the Buy America criteria, per the contract
Material to be a W shape in the W14-W18 size range Shape must have a total depth of no less than 16” Shape must have a flange width of no less than 15.5” Shape must have a web and flange thickness of no less than 5/8” Spacings, thicknesses, and general layout of the shims and stiffeners will remain the same, however, the individual member sizes will need adjusted to match the geometries in the plans. For example – the shim plate widths will have to adjust to the proposed flange width to provide 3” of overhang over the flange ends, the stiffener height and widths will have to adjust to fit within the flanges of the proposed section, etc.
Proposed alternate sections to be approved by the ARRC Bridge Engineer prior to issuance of a Purchase Order for this contract.
Sincerely, C. Lee Thompson Contract Administrator Alaska Railroad Corporation
File details come from the government source that posted it. Updated .