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DAHN CONSTRUCTION CO., LLC

UEI: C3WCU5B7M825

DAHN CONSTRUCTION CO., LLC is a federal contractor, registered under UEI C3WCU5B7M825. It has been awarded $43,839 across 2 federal contracts. Primary work spans Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing and Site Preparation Contractors. Top awarding agencies include Department Of Energy and Department Of Defense.

Contact Information

Registration and classification details

Registration

UEI Code

C3WCU5B7M825

Federal Contracting Overview

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

Key Performance Metrics

Awards Count

0

All time

Active

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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 Energy$28.8K65.8%

Department Of Defense$15.0K34.2%

Awards by NAICS

532412 - Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing$28.8K65.8%

238910 - Site Preparation Contractors$15.0K34.2%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in DAHN CONSTRUCTION CO., LLC's top NAICS codes and agencies

Monterey One - Renewable Energy Improvements (CP361), Marina, CA

Solicitation # monterey-one-renewable-energy-improvements-cp361-marina-ca

GSE Construction Co., Inc. is seeking qualified subcontractors and suppliers for the Monterey One Water Regional Treatment Plant CP361 Renewable Energy Improvements Project located in Marina, California. The scope of work includes extensive upgrades to the digester facilities, such as replacing digester gas piping and safety equipment, installing new level measurement devices, and recoating interior headspaces along with concrete repairs to all four digesters and the associated building. The project also involves installing five owner-furnished linear generators with related electrical work, integrating a biogas conditioning system and RNG upgrading system with a pipeline to the PG&E injection station, and replacing the existing steam boiler with a hydronic heating water system. Additional tasks include removing old waste gas flares and replacing them with new enclosed flares, demolishing the Cogen facility and its appurtenances, and replacing two access roof hatches on each digester with concrete repair provisions. The project encompasses civil, structural, mechanical, electrical, and demolition components requiring specialized trade expertise. Bidders must operate under relevant NAICS codes including 237310, 238110, 238120, 238190, 238320, 238220, and 238210, with a preference for certified Disadvantaged Business Enterprises (DBE), Minority Business Enterprises (MBE) through NMSDC, and Women Business Enterprises (WBE) through WBENC. The solicitation opened on August 5, 2026, with bids due by August 20, 2026. Interested parties must email estimating@gseconstruction.com to request secure access to the full project documentation before submitting a response. All bids must be submitted through the designated portal, and inquiries should be directed to Michael Demissie at the provided contact information. The project is being managed under a non-federal set-aside structure emphasizing diversity in contracting.

GSE Construction Co., Inc.

POSTED

about 8 hours ago

DEADLINE

SEA S Concourse Evolution (SCE) – Bid Package 02

Solicitation # sea-s-concourse-evolution-sce-bid-package-02

The contract covers Bid Package 2 of the S Concourse Evolution (SCE) project at Seattle-Tacoma International Airport, managed by Hensel Phelps as the General Contractor and Construction Manager. It encompasses a broad range of construction activities including demolition and abatement, building concrete retrofit, structural steel and metal stairs and railings, fire suppression systems, site paving, runway and taxi marking, site demolition and earthwork, deep foundations, site utilities, aviation fueling systems, and baggage handling systems. The estimated contract value ranges from $124.2 million to $143.7 million, with individual subsystem budgets varying from $600,000 for runway marking to over $20 million for baggage handling systems. All subcontracting must use Hensel Phelps standard subcontract forms, and performance bonds are required for subcontracts exceeding $100,000, submitted using the bond forms provided in the bid package. A Workers’ Compensation Waiver of Subrogation is mandatory for all subcontractors. This is a Project Labor Agreement (PLA) project, requiring adherence to specific labor standards, and all bidders must be prepared to comply with Hensel Phelps’ equal opportunity employer policies. Bids must be submitted via email to SEA-SCEBids@henselphelps.com by 8:00 PM PDT on August 11, 2026, using the official bid form contained in the Instructions to Bidders document. The solicitation is designated as an 8A small disadvantaged business set-aside, with the NAICS code 238910 indicating construction specialty trade contracting. The project site is located in Washington, and all deliverables must be performed at the airport. No contract administration details such as payment offices, invoicing methods, or contracting officer representatives are specified, nor are inspection and acceptance criteria or packaging requirements outlined, leaving key execution parameters to be defined in the bid documents and subsequent agreements.

POSTED

about 8 hours ago

DEADLINE

NCMT BERTH 24-11 STRUCTURAL REPAIR

Solicitation # 2022-23

The contract involves the comprehensive rehabilitation of the existing concrete marginal wharf at National City Marine Terminal Berth 24-11 in California, along with the reinstallation of the shore power system, as detailed in Specification No. 2022-23 and Drawing No. NC-2022-02. The scope encompasses a wide array of specialized services including AC pavement demolition and disposal, asbestos remediation, concrete coring and saw cutting, concrete demolition, contaminated soil testing and removal, diving services, electrical and water utilities work, environmental monitoring, LIDAR surveying, materials testing, miscellaneous metal fabrication, reinforcing steel installation, storm drain utilities, treated timber disposal, and underwater pile jackets. All work must be executed in accordance with the referenced plans and specifications, and the project is being managed by Manson Construction Co. as the prime contractor, who is actively soliciting sub-bids and supplier quotes from qualified Small Business Enterprises (SBE) to participate across all disciplinary scopes. The agency emphasizes equal opportunity and is committed to fostering participation from disadvantaged business enterprises under Department of Transportation, State of California, NMSDC, and WBENC certifications. The bid submission deadline is August 6, 2026, and all proposals must be submitted to Emre Erzen at lbestimating@mansonconstruction.com. Manson Construction is offering support services including assistance with project scoping, bonding, insurance, lines of credit, and equipment acquisition to facilitate SBE participation, reinforcing its role as an Equal Opportunity Employer seeking to engage capable small business partners in delivering this critical maritime infrastructure repair.

Manson Construction Co.

POSTED

about 8 hours ago

DEADLINE

Port of San Diego NCMT Berth 24-11 Structural Repair, CA

Solicitation # port-san-diego-ncmt-berth-24-11-structural-repair-ca

The contract involves the comprehensive rehabilitation of the concrete marginal wharf at National City Marine Terminal Berth 24-11 in California, requiring full labor, materials, and equipment to dismantle and replace damaged structural elements including portions of the concrete deck, pile caps, and appurtenances. The scope includes repairing existing piles, installing pile jackets, constructing a new reinforced concrete deck, and replacing critical waterfront components such as bull rails, wale systems, and mooring hardware like bollards. All work must adhere to the contract drawings and specifications to ensure structural integrity and compliance with maritime standards. Additionally, the project encompasses the removal, relocation, and reinstallation of the existing shore power system, along with its associated infrastructure such as conduits, manholes, and related appurtenances. The electrical work requires complete testing and commissioning to ensure the system operates fully and reliably as a functional installation. The solicitation is designated as a Small Business set aside under NAICS code 238910, with responses due by August 6, 2026, and is managed by Griffith Company through point of contact Chris Mize. The place of performance is firmly located in California, with no additional administrative details provided beyond the contact and deadline information.

Griffith Company

POSTED

about 8 hours ago

DEADLINE

Pismo - DB Services for the Central Coast Blue AWPF, Pismo Beach, CA

Solicitation # pismo-db-services-central-coast-blue-awpf-pismo-beach-ca

GSE Construction Co., Inc. is seeking qualified subcontractors and suppliers to participate in the design-build construction of the Central Coast Blue Advanced Water Purification Facility in Pismo Beach, California, a project aimed at producing approximately 500 acre-feet per year of purified water through a 0.50 MGD treatment system. The scope encompasses the construction of a 200,000-gallon equalization tank, membrane filtration and two-stage reverse osmosis units, UV/advanced oxidation processes, chemical feed and storage systems, post-treatment stabilization, chlorination, purified water storage and pumping infrastructure, approximately 2,000 linear feet of HDPE conveyance pipelines, and groundwater recharge elements including one injection well and two monitoring wells. The project also requires full electrical, instrumentation, SCADA, and control systems integration. Bids must align with applicable NAICS codes including 237110, 238120, 237310, 238990, 561730, 238110, 238320, 332312, 238220, and 221310, and are restricted to small business, small disadvantaged, women-owned, disadvantaged business enterprise, and minority business enterprise contractors under SBA and non-federal certifications. Interested parties must request project documents via email to estimating@gseconstruction.com to receive a secure link with complete specifications, with all submissions due by August 11, 2026. Primary points of contact are Michael Demissie and Juan Catano.

GSE Construction Co., Inc.

POSTED

about 8 hours ago

DEADLINE

Bare Cove Park, Building 12 Demolition Project

Solicitation # BCPDEMP-#1226

The demolition of Building 12 at Bare Cove Park in Hingham, Massachusetts, is being conducted to clear the site for the upcoming Pickleball Court project, with bids solicited under solicitation number BCPDEMP-#1226 and a response deadline of August 26, 2026. All bidders must be certified in demolition by the Massachusetts Department of Capital Asset Management and Maintenance, and the contract is subject to state labor laws including M.G.L. c. 149 §§44A-J and §§26–27H, which govern public works bidding, prevailing wage rates, and contractor compliance. The Town of Hingham, acting through its Town Administrator and Select Board as the Awarding Authority, retains the right to reject any or all bids, waive minor procedural irregularities, and award the contract based on the best interest of the municipality. Compliance with Massachusetts prevailing wage laws is mandatory, requiring contractors and subcontractors to submit detailed Weekly Certified Payroll Reports and Weekly Statements of Compliance, documenting hours worked by classification, accurate wage payments, and adherence to the official wage schedule. The project enforces workforce participation goals of 15.3% for minority workers and 6.9% for women, with all submissions including company and project details, apprenticeship information, and signed attestations of compliance. Owner-operators seeking exemption from prevailing wage obligations must complete a certification form affirming their status as sole owners, but must still pay prevailing wages if any employees are hired. All payroll records must be retained for at least three years, and reports must be submitted weekly to the Town’s Procurement and Contracts Manager, David Sequeira, at the provided contact information. The project is governed entirely under Massachusetts state law and enforced by the Town of Hingham’s Recreation department, with performance taking place at Bare Cove Park, Hingham, MA 02043.

POSTED

about 9 hours ago

DEADLINE

Storm Drainage and Culvert Installation

POSTED

about 12 hours ago

DEADLINE

Sediment Removal, Black Rock Lake, Thomaston, CT

Solicitation # W912WJ26QA140

The U.S. Army Corps of Engineers – New England District is soliciting bids for sediment removal and culvert clearing at Black Rock Lake in Thomaston, Connecticut, with approximately 1,600 cubic yards of material to be excavated and transported to an upland storage site on government property. The contract is valued between $25,000 and $100,000 and is exclusively reserved for small business vendors under a total small business set-aside, with the NAICS code 238910 and a size standard of $19 million in annual revenue. All interested parties must maintain an active registration in SAM.gov at the time of submission; failure to do so will result in rejection as nonresponsive. The solicitation, identified as W912WJ26QA140, was posted on July 23, 2026, with responses due by August 6, 2026, at 9:00 p.m. Eastern Time. Work will be performed at the lake site in Connecticut, while the contracting office is located in Concord, Massachusetts. For inquiries, contact Alicia LaCrosse at the provided phone number or email address.

W2SD Endist New England

POSTED

about 12 hours ago

DEADLINE

RFQ-171-260000000402-2 | 761/24176.SAR; Cheboygan MGP - Direct Contact Excavation

Solicitation # RFQ-171-260000000402-2

The contract solicitation RFQ-171-260000000402-2 for the Cheboygan MGP Direct Contact Excavation project is a state-led environmental remediation effort administered by the Michigan State Facilities Administration, Design & Construction Division under the Department of Technology, Management and Budget. The work involves excavation, removal, and disposal of approximately 393 tons of contaminated soil at a former manufactured gas plant site in Cheboygan, Michigan, with replacement using 407 tons of clean fill and 87 tons of six-inch clean gravel top layer. Performance is governed by Michigan-specific environmental standards, including the EGLE Non-Residential Direct Contact Criteria and the MDOT 2012 Standard Specifications, with strict adherence to asbestos abatement requirements under Public Act 59 of 2024 and prevailing wage compliance under Davis-Bacon and state regulations. The project includes mobilization, utility clearance, erosion control, and demobilization, all requiring on-site inspections and final acceptance by the Owner’s Professional, contingent upon full compliance with technical specifications, regulatory certifications, and successful test results for material quality and contamination levels. The solicitation operates under a best value procurement model, where bids under $250,000 will be awarded to the lowest responsive and responsible bidder, while higher-value bids are subject to a trade-off analysis between price and qualitative factors such as technical approach, personnel qualifications, schedule feasibility, and past performance, with a 10% price preference for Qualified Disabled Veteran-owned businesses. The only explicitly priced item is a $10,000 provisional allowance, while all other line items are lump sum with no unit prices or extended values provided, preventing a definitive total contract value. Bids must be submitted electronically via the state’s SIGMA VSS portal by August 12, 2026, with mandatory attachments including bid and performance bonds, a Michigan-based business certification, and an asbestos attestation. Special requirements include a 50% Michigan residency mandate for workers, strict security protocols with possible fire watch obligations, and a clause permitting quantity adjustments of up to ±50% without re-bidding, reflecting a flexible contractual framework. Payment is exclusively via electronic funds transfer through SIGMA VSS using the DTMB-0440 payment request form, with no federal accounting codes or procurement officers named, indicating state-level administrative control.

POSTED

about 20 hours ago

DEADLINE

Class 8 Day Cab Truck Tractor RentalThe Texas Department of Transportation is seeking a contractor to provide a monthly rental of a Class 8 day cab truck tractor to support operations at the Brownwood Maintenance Section. The vehicle must be fully compliant with all regulatory standards and maintained in a roadworthy condition throughout the rental period to ensure safe and reliable performance in field operations. The contract is structured as a subcontract under NAICS code 532412, which pertains to commercial and industrial machinery and equipment rental and leasing, and is open for response until August 24, 2026. All equipment must meet operational requirements necessary for day-to-day maintenance activities and be available on a consistent monthly basis. The solicitation is posted on the Texas SmartBuy portal and does not specify any set-aside provisions or additional demographic preferences.

Texas Department of Transportation

POSTED

DEADLINE

Rental of Class 8 Day Cab Truck Tractor

Solicitation # 601440000054008

The Texas Department of Transportation is soliciting proposals for the monthly rental of a class 8 day cab truck tractor to be delivered to the Brownwood Maintenance Section in Texas. This contract is open for bidding under solicitation number 601440000054008, with responses due by August 24, 2026, at 9:00 PM Eastern Time. All submissions must be received by the deadline; late responses will not be accepted. Updates, addenda, and any changes to the solicitation will be posted exclusively on the TXSmartBuy website, and bidders are responsible for monitoring the site regularly for updates. The contract is categorized under a state and local government (SLED) agency procurement, with no set-aside type specified. The primary point of contact for questions is Brian Jordan, reachable via email at Brian.Jordan2@txdot.gov or phone at 512-416-4739. The truck tractor will be delivered and used within the state of Texas, and vendors are expected to comply with all requirements outlined in the solicitation without reliance on external documentation or assumptions.

Texas Department of Transportation

POSTED

DEADLINE

26-08 Cal883432B (Calhoun)

Solicitation # 26-08 Cal883432B (Calhoun)

The project titled 26-08 Cal883432B (Calhoun) involves earthwork and erosion control activities in Calhoun County, Iowa, including selective clearing, excavation, and grading totaling approximately 13,800 cubic yards, along with the placement of 2,750 square feet of tied-concrete block mat, 769 linear feet of tile drainage systems, and a water control structure. Additional work includes the installation of 31 tons of riprap and erosion stone, and the seeding of four acres of land to stabilize soil and prevent further erosion. The estimated construction cost ranges between $135,000 and $155,000, with construction activities required to be completed by November 30, 2026, and buffer seeding finalized by December 15, 2026. The solicitation is managed by the Iowa Department of Agriculture and Land Stewardship, with bids due by August 26, 2026, and inquiries directed to Tracy Blocker at the provided contact information.

Agriculture and Land Stewardship

POSTED

DEADLINE

Veterans Memorial Auditorium Entry Planting & Irrigation Project

Solicitation # MCP 2026-04

The Veterans Memorial Auditorium Entry Planting & Irrigation Project at 10 Avenue of the Flags in San Rafael, California, encompasses a full scope of landscape enhancement activities aimed at revitalizing the entryway area. Work includes protecting existing vegetation, clearing the site, preparing and amending soil, installing mulch, and planting new trees and shrubs. The project also requires trenching and backfilling to support the installation of a new irrigation system, along with adjustments to existing irrigation infrastructure and infill planting to ensure cohesive and sustainable growth. All tasks are to be performed with attention to preserving the integrity of the surrounding environment and existing hardscapes. The contract mandates a 120-day maintenance period following completion to ensure the health and establishment of all newly planted vegetation and irrigation systems. The solicitation, issued by Marin County Parks under the County of Marin, carries the solicitation number 20260803057 and is classified under NAICS code 238910 for other construction support activities. Responses are due by August 14, 2026, at 9:00 PM Pacific Time, with inquiries directed to Tara McIntire via email or phone. The project is open to eligible bidders without a specific set-aside classification and is accessible through the BidAmerica platform for full details and submission.

Marin County Parks, County of Marin

POSTED

DEADLINE

Corporation Yard Groundwater Monitoring Wells Project

Solicitation # 3118

The Corporation Yard Groundwater Monitoring Wells Project involves the installation of groundwater monitoring wells, soil vapor wells, and sub-slab vapor pins to assess the extent of petroleum-hydrocarbon contamination in soil and groundwater, evaluate potential vapor intrusion risks into corporation yard buildings, and determine the lateral spread of volatile contaminants, particularly PCE, in soil vapor. The scope of work includes advancing soil borings, collecting samples from soil, groundwater, and soil vapor, and restoring surface conditions after completion. All activities must be performed in strict accordance with the project plans, specifications, and directives from the Engineer to ensure accurate data collection and environmental compliance. The solicitation, numbered 20260803055, was posted on August 4, 2026, with a response deadline of September 11, 2026. The project falls under NAICS code 238910 and is managed by the City of Pittsburg, California. All work will be performed at the corporation yard located in Pittsburg, CA, with a zip code of 94565. The primary point of contact for inquiries is Tina Tan, reachable via email at ttan@pittsburgca.gov or phone at 925-252-4930. The project is not subject to any specific set-aside requirements and is open to all qualified bidders through the BidAmerica platform.

City of Pittsburg

POSTED

DEADLINE

in about 1 month

Sewer Manhole AdjustmentThe City of Compton Public Works Department is seeking a subcontractor to adjust existing sewer manholes to align with new road elevations following asphalt resurfacing projects in the Compton area, specifically within ZIP code 90220. This work requires precise grading and elevation adjustments to ensure manholes are properly leveled with the newly surfaced roads, maintaining safe traffic flow and preventing water accumulation or structural damage. The contract is classified under NAICS code 238910, indicating it falls within specialty trade contracting for sewer and related infrastructure work. All bids must be submitted by August 21, 2026, and the solicitation was posted on August 4, 2026. The work is intended to support ongoing municipal infrastructure upgrades and must be performed in coordination with road resurfacing schedules to ensure seamless integration and compliance with local public works standards.

City of Compton Public Works Department

POSTED

DEADLINE

Converge Des – Ucsd Health Core And Finance Ti

Solicitation # 5764

The UCSD Health Core & Finance Tenant Improvement project, identified as Bid #5764 and titled Converge Des – UCSD Health Core and Finance TI, is a multi-floor construction effort spanning nearly 58,238 square feet across floors one through three and a portion of the fourth floor at 6256 Greenwich Drive in San Diego, California. The scope encompasses comprehensive demolition of existing finishes, partitions, ceilings, DFH, MEP components, and miscellaneous elements, followed by new construction including partitions, finishes, casework, MEP and fire protection systems, and low-voltage cabling for data, security, and audiovisual networks. Specific requirements include installation of building-standard motion sensors, new exit signage and tunnel mounts, rework of fire life safety systems to accommodate the new layout, HVAC capacity sufficient for 100 occupants, and integration of tenant CCTV infrastructure. The project demands strict adherence to environmental, safety, and regulatory standards, including compliance with the Buy Clean California Act, prevailing wage rates, patient health information protocols, and the requirement for Environmental Product Declarations (Type III, ISO 14025) for all eligible materials. All contractors and subcontractors must be registered with the California Department of Industrial Relations and comply with labor, safety, and sustainability mandates. The contract is awarded on a lowest responsive and responsible bid basis, with the contract sum determined by the lump sum base bid, adjusted by unit price items and augmented by a daily compensable delay rate multiplied by a specified multiplier. Bids must be submitted on the official University form, accompanied by a bid security equal to 10% of the base bid, in the form of either a bid bond or certified check payable to The Regents of the University of California. The solicitation mandates submission through a sealed envelope delivered physically by the deadline of August 14, 2026, with electronic, telephonic, or facsimile submissions expressly prohibited. Contractors are required to provide performance and payment bonds, commercial general liability insurance with limits of $1 million per occurrence and $2 million aggregate, workers’ compensation as required by California law, employer’s liability coverage of $1 million per employee and accident, and builder’s risk property insurance. Additional requirements include submission of key personnel documentation, certified payroll records, daily progress reports, and compliance with bonding and insurance exhibits such as performance bonds, payment bonds, and certificates of insurance. Substantial completion must be achieved within 182 days of the Notice to Proceed, with final completion

University of California, San Diego

POSTED

DEADLINE

High-Pressure Nitrogen Gas Trailer Rental & Delivery

Portsmouth Naval Shipyard Gf

POSTED

DEADLINE

Site Preparation and EarthworkThe contract titled Site Preparation and Earthwork involves comprehensive site readiness activities including clearing, grubbing, grading, excavation, and erosion control to prepare a construction site for future development. These tasks are essential for ensuring the land meets engineering and environmental standards prior to the commencement of major construction. The work is classified under NAICS code 238910, indicating it falls within the category of site preparation services, and is structured as a subcontract, suggesting it is part of a larger project managed by a prime contractor. The performance location is designated as Alexandria, Virginia, with a zip code of 22311, and the solicitation was posted on August 4, 2026, with_responses due by August 10, 2026. The contracting entity is the DOD Education Activity under the Department of Defense, indicating the work supports infrastructure needs for military educational facilities. No specific set-aside provisions or point of contact details are provided, and the contract opportunity is accessible through the SAM.gov platform.

DOD Education Activity

POSTED

DEADLINE