This Subcontract opportunity from South Carolina was posted on November 27, 2024. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Structural Bid Alternates

Closed

State & Local

Submission Closed02/17/2025, 07:00:00 PM EST

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 238120

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Structural Steel Testing and InspectionThis subcontract for Structural Steel Testing and Inspection involves providing independent material verification and weld inspection services for prime contractors on projects within Chesterfield County, Virginia. The scope of work includes the material verification of structural steel joints and bolted connections, visual inspections of field-welded connections, and ultrasonic testing of complete-joint-penetration welds in accordance with ASTM E164. All services must strictly conform to Construction Code Chapter 17 and AISC Chapter N, with the final deliverables consisting of detailed inspection reports and material verification certifications. The opportunity is categorized under NAICS code 238120 and was posted on November 13, 2026, with a response deadline of December 17, 2026. Performance of the contract will take place in Chesterfield, Virginia. Interested parties can find further details through the provided web procurement link.

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Structural Steel Fabrication and InstallationThis subcontract for Structural Steel Fabrication and Installation involves the fabrication and installation of structural steel connecting components and knife plates for prime contractors on projects within Chesterfield County, Virginia. The scope of work includes performing field verification of foundations, removing existing knife plates, and welding new plates to base plates. All shop fabrication must adhere to AISC 303 and AISC 360 standards using ASTM A572 and A36 steel with a hot-dipped galvanized finish. To ensure quality and safety, the contract requires the use of AWS D1.1/D1.1M certified welders to deliver the completed structural steel framework and connected knife plates. The solicitation was posted on November 13, 2026, with a response deadline of December 17, 2026. The project falls under NAICS code 238120 and is performed in Chesterfield, zip code 23832.

POSTED

DEADLINE

Midlothian Mines Headstock Replacement

Solicitation # IFB27000129

Chesterfield County is soliciting bids for the Midlothian Mines Headstock Replacement, a project to construct a headstock replica at Midlothian Mines Park. The scope of work includes field verification of existing foundations, removing and welding new steel knife plates, fabricating and erecting a new heavy timber headstock with custom steel connection plates, and installing copper flashing. Additionally, the contractor must refurbish and reinstall existing winder wheels and apply specific wood-preservative treatments. All steel components must be hot-dipped galvanized according to ASTM standards, and timber must be kiln-dried Southern Pine with UC5C pressure preservative treatment. The contract will be awarded to the lowest responsive and responsible bidder based on a lump sum bid. Bids are due by December 17, 2026, and must be submitted via hard copy or the County's eProcurement system. A non-mandatory pre-bid conference is scheduled for November 19, 2026. Bidders must provide a bid bond equal to 5% of the total bid price, and if the bid exceeds $500,000, both performance and payment bonds of 100% of the contract price are required. Payment is typically made within 30 days of receiving an accurate invoice, with a 5% retainage applied to monthly estimates. The project is subject to various regulatory compliances, including federal, state, and local environmental and safety regulations, as well as Equal Employment Opportunity requirements.

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W7NN Uspfo Activity Nhang 157

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Precast Concrete Bunker and Alaska Barrier SupplyThis subcontract with the Department of Defense, managed by W6QK Acc-Rsa, involves the supply and delivery of precast reinforced concrete components for prime contractors working on US Army Central projects in Saudi Arabia. The scope of work focuses on the manufacture of 3-sided concrete C-channel culverts meeting ASTM 1433 standards and reinforced concrete Alaska Barriers, which measure 3.0 meters in height and weigh 6.1 tons per piece. To ensure structural integrity, the components must be constructed using Grade 60 KSI deformed rebar and 3/8-inch PC strands, with the provider required to submit comprehensive flexural and compressive strength test results. The contractor is responsible for the full production and delivery of these precast sections and barriers directly to the designated installation sites.

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Metal Building ErectorThis subcontract opportunity is for a Metal Building Erector to support prime contractors on facility projects for the Colorado Department of Natural Resources, specifically within the Division of Parks and Wildlife. The selected contractor will be responsible for the complete installation and assembly of pre-engineered metal building systems, which includes unloading and staging materials, erecting rigid steel frames, and installing all roof and wall panels, windows, and doors. The scope of work requires the use of cranes and rigging equipment and strict adherence to AWS standards for all field welding to ensure the delivery of a fully erected and weathertight structure. Interested parties should note the response deadline of November 19, 2026, and refer to NAICS code 238120 for classification.

DNR - Division Of Parks & Wildlife

POSTED

1 day ago

DEADLINE

in 5 days

AI Contract Overview

This subcontract opportunity, issued by the University of South Carolina - Sumter, focuses on structural bid alternates for shoring work. The scope of the project involves implementing structural modifications or enhancements to the base shoring plan, specifically requiring additional steel support, specialized connections, or design variations as outlined in Bid Alternates 1 and 2. The solicitation was posted on November 27, 2024, and requires responses to be submitted by the deadline of February 18, 2025. Classified under NAICS code 238120, the contract is intended for qualified subcontractors capable of executing these specific structural enhancements to ensure the stability and integrity of the shoring system.

General Info

USC Sumter seeks structural shoring subcontractors for bid alternates by February 18, 2025.

Agency

University of South Carolina - Sumter

NAICS

238120 - Structural Steel and Precast Concrete Contractors

Place of Performance

SC, USA

Set-Aside

NONE

Documents

This scope was carved out of H27-Z557/50003622-2.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

UMP070 West Energy Tunnel Shoring PH II

AI Contract Breakdown

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Timeline

PhaseClosed

PostedNov 27

subcontract

Response DeadlineFeb 17

Deadline has passed

Submission Closed

02/17/2025, 07:00:00 PM EST

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Organization & Contact Information

AgencyUniversity of South Carolina - Sumter

ContactsNo contacts available

OfficeN/A

Organization / AgencyUniversity of South Carolina - Sumter

Office AddressN/A

ContactsNo contact information available

Full Description

Structural modifications or enhancements to the base shoring scope, likely involving additional steel support, connections, or design variations as defined in Bid Alternates #1 and #2.