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WELFL CONSTRUCTION CORPORATION 800 W 23RD ST YANKTON SD 57078-1207 US

UEI: SLED_9C858C619F33E118

WELFL CONSTRUCTION CORPORATION 800 W 23RD ST YANKTON SD 57078-1207 US is a federal contractor, registered under UEI SLED_9C858C619F33E118. It has been awarded $28,389 in federal contracts. Primary work spans Poured Concrete Foundation and Structure Contractors. Top awarding agencies include Department Of The Interior.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_9C858C619F33E118

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

Welfl Construction Corporation provides specialized concrete construction services. Their technical expertise includes the execution of concrete projects for quarters and facility infrastructure. The company has experience working with the Department of the Interior, where they have performed concr...

Key Performance Metrics

Awards Count

1

All time

Active

0

Currently performing

Completed

0

Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency

Department Of The Interior$28.4K100%

Awards by NAICS

238110 - Poured Concrete Foundation and Structure Contractors$28.4K100%

Awards by Agency Over Time

Awards by Place of Performance

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Open opportunities in WELFL CONSTRUCTION CORPORATION 800 W 23RD ST YANKTON SD 57078-1207 US's top NAICS codes and agencies

Concrete Construction ServicesThis subcontract for Concrete Construction Services involves performing concrete installation and finishing for prime contractors working on water supply well replacement projects for the Town of Fair Bluff. The scope of work includes the forming, pouring, and finishing of concrete for structural supports, vaults, and well pads, utilizing reinforcement steel to deliver completed concrete structures. The opportunity is issued by Columbus Utilities, Inc. and is specifically set aside for small businesses, including SBA certified Women-Owned Small Businesses, HUBZone Small Businesses, Small Disadvantaged Businesses, and Disadvantaged Business Enterprises. Interested parties must respond by November 5, 2026, under NAICS code 238110.

Columbus Utilities, Inc.

POSTED

about 16 hours ago

DEADLINE

Concrete FormworkThis subcontract opportunity with Garney Pacific, Inc. involves the installation of forms and the pouring and finishing of concrete for wastewater treatment plant projects in the City of Redlands. The selected contractor will be responsible for delivering fully installed concrete structures, with a strict requirement for the use of union labor and the provision of a 100% Payment and Performance Bond. The solicitation is set aside for small businesses, including certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested parties must submit their responses by November 12, 2026, for this project categorized under NAICS code 238110.

Garney Pacific, Inc.

POSTED

about 16 hours ago

DEADLINE

South Concourse Evolution (SCE) Bid Package 2.1

Solicitation # Bid Package 2.1

The South Concourse Evolution (SCE) Bid Package 2.1 is a solicitation for Subsystem 2.1.01, focusing on new building concrete for the Seattle-Tacoma International Airport in Washington. Managed by the Port of Seattle with Hensel Phelps serving as the General Contractor and Construction Manager, the project has an estimated budget range between 8 million and 10 million dollars. This opportunity is designated as an 8A set-aside for Small Disadvantaged Businesses under NAICS code 238110. Qualified firms must submit bids by 2:00 PM PDT on October 21, 2026, via email to the Port of Seattle. Requirements for submission include the use of specific bid forms provided in the Instructions to Bidders and the inclusion of a bid bond. The successful bidder will be required to provide 100 percent payment and performance bonds for all subcontracts exceeding 100,000 dollars and must execute agreements using Hensel Phelps standard subcontract forms. Additionally, the project is governed by a Project Labor Agreement, requires a Workers Compensation Waiver of Subrogation from all subcontractors, and is conducted in accordance with RCW 39.10.380 and RCW 39.10.390(2).

POSTED

about 16 hours ago

DEADLINE

Foundation and Concrete WorkThis subcontract for Foundation and Concrete Work involves the construction of residential foundations for prime contractors on projects located within the Confederated Tribes of the Colville Reservation in Nespelem. The scope of work requires the delivery of cured, code-compliant structural foundations designed to withstand site-specific snow, wind, and seismic loads. Key technical responsibilities include the installation of reinforcing, anchorages, insulation, moisture protection, and under-slab vapor barriers. The opportunity was posted on October 15, 2026, with a response deadline of October 30, 2026. Classified under NAICS code 238110, the project is managed by the Confederated Tribes of the Colville Reservation. Interested parties can find further information through the organization's TERO portal.

Confederated Tribes of the Colville Reservation

POSTED

about 17 hours ago

DEADLINE

Concrete Foundations and SlabsThis subcontract agreement involves the supply and installation of concrete for a Texas Department of Transportation facility project focused on renovation and expansion in Georgetown, Texas. The scope of work requires the contractor to perform comprehensive site preparation, formwork, rebar installation, and the pouring of foundations and slabs to deliver fully cured concrete structures for the prime contractor. The opportunity is categorized under NAICS code 238110 and was posted on October 15, 2026. Interested parties must submit their responses by the deadline of December 1, 2026. Further details regarding this procurement can be accessed through the Texas SmartBuy portal.

Texas Department of Transportation

POSTED

about 17 hours ago

DEADLINE

in about 2 months

Concrete Floor Leveling and Substrate RepairThis small business set-aside subcontract for the Naval Surface Warfare Center Carderock Division involves specialized concrete floor leveling and substrate repair. The scope of work includes removing concrete rubble, applying industrial-grade cementitious floor leveler to a 45 ft by 13.5 ft area, repairing a 15 ft by 6 ft zone of damaged concrete, and installing an 8 ft wide ADA-compliant transition ramp to ensure a cured, level substrate. The project mandates strict adherence to safety regulations, specifically requiring the use of NIOSH-approved respirators and compliance with 29 CFR 1926.1153. This opportunity falls under NAICS code 238110 and is managed by the Department of Defense.

POSTED

about 20 hours ago

DEADLINE

Concrete floor leveling and resurfacing

Solicitation # N00167-27-SIMACQ-CD-89-0002

The Naval Surface Warfare Center Carderock Division is seeking a small business contractor under NAICS 238110 to perform concrete floor repair, leveling, and resurfacing for approximately 698 square feet within the Building 1 Model Shop in Bethesda, Maryland. The project is divided into two specific areas: a Booth Zone of approximately 45 by 13.5 feet that must be perfectly level to support a future paint booth and mixing room, and a Transition Zone of approximately 15 by 6 feet that must be flush with the existing floor. The scope requires surface preparation, the pouring of cementitious overlays, and the installation of a high-performance, chemical-resistant industrial flooring system with a minimum compressive strength of 5,000 PSI. All work must comply with NFPA 33 standards for spray applications and 29 CFR 1926.1153 regarding respirable crystalline silica. Additionally, any transition ramps must adhere to OSHA/ADA standards with a maximum 1:12 slope for transitions exceeding 1/2 inch. This is an unclassified project to be awarded as a firm fixed price purchase order using Simplified Acquisition Procedures. The contractor must demonstrate commercial or industrial experience in installing high-performance resinous or aggregate broadcast flooring systems and is responsible for providing all necessary PPE, including NIOSH-approved respirators. On-site work must be completed within 15 business days of award, with a final completion and invoicing goal of January 31, 2027. To minimize disruption, work is scheduled for after-hours between 1600 and 0100, Monday through Friday. Final acceptance will be determined by the Government Technical Point of Contact following a joint walk-through to verify all Statement of Work requirements have been met. Questions regarding this pre-solicitation must be submitted to Brooks McLean by October 26, 2026.

POSTED

about 20 hours ago

DEADLINE

B. Everett Jordan Concrete Pad Installation

Solicitation # W912PM26QA047

The U.S. Army Corps of Engineers, Wilmington District, is soliciting quotes for a firm-fixed-price contract to install a 24ft-10in x 34ft-4in concrete pad with column foundations for a prefabricated shelter at the B. Everett Jordan Dam Tailrace Park in Moncure, North Carolina. This small business set-aside under NAICS 238110 requires the contractor to provide all labor, materials, equipment, and quality control. Technical specifications include excavating and compacting the area to 95 percent Proctor density, installing a minimum 8 inch subbase of washed No. 57 stone, and utilizing a heavy duty 8 oz non-woven geotextile fabric vapor barrier meeting ASTM E1745. The project must commence within 30 days of award and be completed, including final cleanup, within 75 days. Award will be granted to the lowest priced technically acceptable offeror. To be eligible, vendors must be registered in SAM, provide a technical proposal demonstrating their ability to meet the Statement of Work, and identify a designated on-site Safety Competent Person or Site Superintendent knowledgeable in OSHA construction standards. Submissions must be delivered via PIEE in PDF format, consisting of separate price and technical volumes. The contract includes requirements for performance and payment bonds at 100 percent of the contract price, adherence to Buy American construction material standards, and compliance with antiterrorism and operations security protocols.

W074 Endist Wilmington

POSTED

about 20 hours ago

DEADLINE

Concrete & Structural ContractorThis subcontract opportunity is for a Concrete and Structural Contractor to support prime contractors on projects for the Port of Vancouver USA. The scope of work involves the installation of both cast-in-place and precast concrete, specifically focusing on the construction of equipment pads and the installation of utility vaults, junction boxes, and precast sectional manholes. The contractor is responsible for delivering fully cured concrete pads and ensuring all structures are leak-tested. All work must adhere to strict industry standards, including hydrostatic leakage testing per ACI 350.1-10 and surface tolerance requirements per ACI 117. The solicitation was posted on October 15, 2026, with a response deadline of November 19, 2026.

Port of Vancouver USA

POSTED

DEADLINE

in about 1 month

Concrete and Structural Work for Montclair Basin ImprovementsThis subcontract for the Montclair Basin Improvements project involves providing specialized concrete and structural work for water infrastructure projects managed by the Inland Empire Utilities Agency. The scope of work includes the installation of formwork, rebar placement, and the pouring and finishing of critical water control structures such as headwalls, weir structures, energy dissipators, and curb and gutters. The contract is issued by RT Contractor Corp and is specifically designated as a set-aside for Disadvantaged Business Enterprises under the Department of Transportation. Interested parties must submit their responses by November 4, 2026, for this project categorized under NAICS code 238110.

RT CONTRACTOR CORP

POSTED

DEADLINE

Concrete Curb, Gutter, and SidewalksThis subcontract opportunity involves the installation of concrete curbs, gutters, and ADA-compliant sidewalks for prime contractors working on City of Covina infrastructure projects. The scope of work encompasses the complete process of forming, pouring, and finishing concrete, with a specific focus on the installation of ADA ramps and detectable warning surfaces to ensure full accessibility compliance. Qualified contractors must hold a valid DIR Registration and strictly adhere to all ADA standards. The project is located in Covina, California, under NAICS code 238110. Interested parties must submit their responses by the deadline of October 27, 2026.

POSTED

DEADLINE

Concrete and Structural WorkThis subcontract for Concrete and Structural Work involves the forming and pouring of concrete for watershed structures on City of Covina projects. The selected contractor will be responsible for installing formwork, tying rebar, and executing the pouring and finishing of reinforced channels and headwalls to ensure all cured structures meet specific engineering requirements. The project is located in Covina, California, and requires strict adherence to Prevailing Wage compliance and DIR Registration. Interested parties must submit their responses by November 3, 2026, to provide these specialized services under NAICS code 238110.

POSTED

DEADLINE

Concrete and Structural Repair - Effluent ChannelThis subcontract involves performing structural repairs to the filter effluent channel ceiling at the City of San Jose Resource Recovery Facility. The scope of work focuses on repairing deteriorated concrete ceilings using industrial concrete repair mortars and applying chemical-resistant, industrial-grade protective coatings to the channel walls to ensure long-term durability. The project is located in San Jose, California, under NAICS code 238110. Interested parties must submit their responses by November 10, 2026, to support prime contractors in delivering a fully repaired and coated effluent channel.

City of San José

POSTED

DEADLINE

Concrete Slab and FlatworkThis subcontract opportunity involves the installation of a concrete slab and flatwork for a new NCDOT maintenance office located in Burnsville, North Carolina. The selected contractor will be responsible for pouring and finishing the concrete slab for a 2,520 square foot wood frame building, ensuring the final delivery of a completed building slab. The project is managed by the State of North Carolina Construction Office under NAICS code 238110. Interested parties must submit their responses by the deadline of November 10, 2026, at 4:00 PM.

State of NC - Construction Office

POSTED

DEADLINE

Water Storage Tank Construction (Lower Reservoir Tank)This subcontract involves the construction, installation, and testing of a lower reservoir water tank at the California State Polytechnic University, Pomona facility. The selected contractor will be responsible for a full scope of work including excavation, structural reinforcement, tank assembly, casting, and waterproofing. These tasks must be executed using heavy lifting equipment and industrial steel or concrete materials in strict compliance with CSU and local building codes to ensure the delivery of a fully operational system. The project is categorized under NAICS code 238110 and is located in Los Angeles. Interested parties must submit their responses by the deadline of November 5, 2026. This effort supports prime contractors in delivering critical water storage infrastructure for the university.

Polytechnic University Pomona

POSTED

DEADLINE

Concrete Curb, Gutter, and Sidewalk InstallationThis subcontract for the City of Claremont involves the installation of essential concrete infrastructure for street improvement projects. The scope of work includes the placement of approximately 1,900 linear feet of various curb and gutter types, 14,000 square feet of 4-inch PCC sidewalk, 672 square feet of bus pads, and 24 ADA curb ramps. All installations must strictly adhere to the 2015 Greenbook and ADA standards to ensure regulatory compliance and accessibility. The project is categorized under NAICS code 238110 and is located within Claremont, California. Interested parties must submit their responses by the deadline of October 26, 2026. The primary objective of the contract is the delivery of completed, high-quality concrete infrastructure supporting the city's broader street improvement initiatives.

City of Claremont

POSTED

DEADLINE

Concrete WorkThis subcontract for concrete work involves the installation, placement, and finishing of concrete structures for a sports field and clubhouse project within the Paramount Unified School District. The selected subcontractor will work under prime contractors to deliver completed concrete facilities located in Paramount, California. Eligible bidders must possess a valid California C-38 license and meet pre-qualification standards established by the District in accordance with California Public Contract Code Section 20111.6. The solicitation was posted on October 15, 2026, with a response deadline of November 10, 2026.

Paramount Unified School District

POSTED

DEADLINE

ADA Concrete Ramp and Flatwork InstallationThis subcontract opportunity involves the installation of ADA-compliant concrete ramps and flatwork for park projects within the City of Newark, California. The scope of work requires the removal of 380 square feet of existing four-inch concrete and the installation of 26,425 square feet of new four-inch thick concrete along with 215 linear feet of headerboards to ensure accessible pathways and curb ramps. Eligible bidders must hold a California Contractor License Class A or C-12. The solicitation was posted on October 15, 2026, and the deadline for responses is November 3, 2026. All work will be performed in Newark, zip code 94560, under NAICS code 238110.

POSTED

DEADLINE