CERC Phase 2 A3 Bldg Stabilization

*Amendment 004 provides final Q&A* *Amendment 003 provides the attachments that were not included in Amendment 002 posting* *Amendment 002 provides Q&A and extends response time to August 28, 2024* *Amendment 001 provides an additional site visit date: Monday, August 12, 2024 @ 9 AM local time* The U.S. Geological Survey Columbia Environmental Research Center (CERC) has a requirement to stabilize the southeast, southwest, and northwest corner of their A3 main building to correct and prevent further settling of the building due to foundation and expansive soil deficiencies. The scope of work includes but is not limited to:

Adding steel helical piles to shore up the foundation along the length of the southeast, southwest, northwest and basement. Cut basement slab and replace with underpinning at column grid: B2,4.5 in basement. Provide a control joint around new concrete basement slab, new vapor barrier, gravel and installation under slab work area. Partially disassemble the existing CMU wall at column B2,4.5 in ground floor room 11 and replace with new CMU grouted into existing wall and paint to match existing.

Remove and replace portions of existing concrete walk affected by the work at the main entrance and westside entrance and sidewalk. Replace and patio south of pergola on the eastside as needed. Restore site lawn areas affected by the work on all side of the building work area. Replace sidewalks and curbs as shown in Civil drawings. Ensure that all new sidewalks and curb cuts meet accessible standards. The contractor shall provide all labor, material, tools, equipment, and supervision necessary.

The magnitude of construction is between $250,000 and $500,000. Request for Proposal (RFP) 140G0124R0022 will be issued on or about 7/22/2024 with written quotes due on or about 8/21/2024. Bonds are required. There will be a site visit. All contractors are STRONGLY ENCOURAGED to attend the site visit. See provision 52.236-27 Site Visit (Construction) in Section L of the solicitation for information on the site visit including the USGS point of contact. The NAICS code is 238190. The size standard is $19 million.

This acquisition is a total small business set-aside. A vendor must be registered at https://sam.gov/SAM/ to be awarded the contract. All responsible sources may submit a proposal which shall be considered by the agency. Proposals must be emailed to krschneider@usgs.gov.