This Government Contract opportunity from Washington was posted on July 1, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Site Excavation and Earthwork

Closed

State & Local

Submission Closed07/29/2026, 09:00:00 PM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 237990

New

Federal

Modification to Task Order # N6523625F0010 Bundle 12 LIETM00492This construction task order modification, identified as N6523625F0010 Bundle 12 LIETM00492, is issued by the Naval Information Warfare Systems under Niwc Atlantic. The modification is necessitated by unforeseen site conditions and design errors encountered during the project. The work is categorized under NAICS code 237990 and is scheduled for performance in North Charleston. The procurement is currently listed as a forecast with a posted date of September 6, 2026. Administrative oversight is managed by Contracting Officer Tyler J. Roberts, with Adam Christopher serving as the secondary point of contact.

POSTED

DEADLINE

Bowman, ND Water Storage Reservoir

Solicitation # bowman-nd-water-storage-reservoir

The Bowman, ND Water Storage Reservoir project involves the demolition and removal of an existing 300,000 gallon concrete water storage tank and the subsequent construction of a new 600,000 gallon concrete tank. The scope of work includes associated piping, incidentals, the construction of an access road and parking pad, as well as topsoil management, excavation, seeding, erosion control, and fencing. Bidders may provide alternate bids for either a cast-in-place tank or a precast tank. Bids must be submitted to Rice Lake West via email to estimating@rlwest.org by September 9, 2026, at 5:00 p.m. This solicitation includes specific minority and women-owned business enterprise goals, requiring 2 percent MBE and 3 percent WBE participation. The project is located in North Dakota and falls under NAICS code 237990.

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North of River Sanitary District No. 1 WRRF Upgrades and Expansion

Solicitation # north-river-sanitary-district-no-1-wrrf-upgrades-expansion

Kiewit Infrastructure West Co. is soliciting sub-quotes for the North of River Sanitary District No. 1 WRRF Upgrades and Expansion project located in Bakersfield, California. The scope of work is extensive, covering civil and site work such as aggregates, trucking, asphalt paving, and pipe installation, as well as structural and finishing tasks including masonry, welding, roofing, electrical work, and interior finishes. Interested firms must contact Kiewit to receive an Invitation to Bid through the Building Connected system, with a response deadline of September 17, 2026, at 10:00 a.m. The project is partially financed by the Water Infrastructure Finance and Innovation Act (WIFIA) and administered by the EPA, making it subject to the American Iron and Steel (AIS) Provisions, Davis-Bacon Related Acts, and DBE Program requirements. Qualified bidders must possess a valid California Contractor’s license and provide acceptable insurance. Additionally, responsible subcontractors may be required to provide bonding for 100% of their contract value, with bond premiums reimbursed by Kiewit. The solicitation specifically encourages participation from certified DBE, MBE, WBE, and other small business enterprises, requiring evidence of certification from recognized agencies such as the US EPA, SBA, or CA DOT.

Kiewit Infrastructure West Co.

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Runway 19L, 28L & 28R Timber Trestle Improvements CA

Solicitation # runway-19l-28l-28r-timber-trestle-improvements-ca

The Runway 19L, 28L, and 28R Timber Trestles Improvement Project focuses on implementing critical safety enhancements to the trestles supporting FAA approach lighting systems in California. The primary objectives are to improve safe access for maintenance personnel and extend the operational service life of the trestles by over ten years. This solicitation is issued by Thompson Builders Corporation and is specifically set aside for Small Businesses, with a particular interest in Local Business Enterprise firms. Interested parties must submit their responses by September 9, 2026. The project falls under NAICS code 237990, and inquiries should be directed to Kelsey Heaphy.

Thompson Builders Corporation

POSTED

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Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair

Solicitation # W9128A26BA002

The Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair project, solicitation W9128A26BA002, is a firm-fixed-price contract issued by the U.S. Army Corps of Engineers Honolulu District. Located in Haleiwa, Oahu, Hawaii, the scope of work involves maintenance dredging of approximately 4,260 cubic yards with ocean disposal south of Oahu, vegetation clearance, and repairs to the revetted mole, including stone rework and filling voids. The estimated contract value ranges from 1 million to 5 million dollars, with a performance period of 200 calendar days from the receipt of the Notice to Proceed. This solicitation is set aside for small businesses, including SDB, WOSB, HUBZone, VOSB, and SDVOSB concerns, with a specific price evaluation preference for HUBZone small businesses. Bids must be submitted as sealed physical envelopes by September 30, 2026, as electronic submissions are not permitted. Key requirements for a responsive bid include active SAM registration, a bid guarantee, and the submission of SF 1442. The contractor must provide key personnel, including a Project Manager and Site Safety and Health Officer, and adhere to Davis-Bacon Act wage requirements. Acceptance of the dredging work is based on pre- and post-dredge multi-beam hydrographic surveys conducted by a third-party qualified surveyor. Liquidated damages for delays are set at 2,297 dollars per calendar day.

Healy Tibbitts Builders, Inc.

POSTED

DEADLINE

Heavy Civil Site Prep & Specialized ExcavationThis subcontract for Heavy Civil Site Prep and Specialized Excavation supports the Pier B On-Dock Rail Support Facility project for FHWA and MARAD. The selected contractor will perform complex underground construction and site stabilization for Kiewit Infrastructure West Co., utilizing specialized techniques such as shoring, underpinning, tunneling, boring, jacking, micro-tunneling, and directional drilling. The primary objective is the delivery of stabilized foundations and completed underground utility paths using tunnel boring machines and jacking equipment. The opportunity is designated as a subcontract under NAICS code 237990 and is set aside for various small business categories, including Small Disadvantaged, Women-Owned, HUBZone, and Veteran-Owned small businesses. Interested parties must respond by September 15, 2026.

Kiewit Infrastructure West Co.

POSTED

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Trenching and BackfillingThis subcontract for the County of Orange OC Waste and Recycling involves specialized excavation and backfilling services for utility lines in San Juan Capistrano. The scope of work includes trenching for HDPE header piping, installing compacted utility bedding, and backfilling dual containment areas. A critical component of the project is the requirement to conduct air monitoring following the backfill process to ensure there are no surface emissions, delivering trenches with verified air-tight seals. The opportunity is categorized under NAICS code 237990 and was posted on September 5, 2026. Interested parties must submit their responses by the deadline of October 8, 2026. This contract is designed for a subcontractor to support prime contractors in executing these technical utility requirements for the agency.

County of Orange, OC Waste & Recycling

POSTED

DEADLINE

Landfill Gas (LFG) System InstallationThis subcontract involves the installation and modification of landfill gas collection systems for the County of Orange OC Waste and Recycling in San Juan Capistrano. The scope of work includes removing and salvaging existing piping, installing new HDPE pipe for the Zone 4 Phase A expansion, and setting up condensate sumps, pneumatic pumps, and isolation equipment. The contractor is responsible for performing tie-ins to existing infrastructure to deliver a fully operational LFG and condensate collection system. The project is categorized under NAICS code 237990 and was posted on September 5, 2026, with a response deadline of October 8, 2026. This opportunity is designed for subcontractors working under prime contractors to support the regional waste management infrastructure in California.

County of Orange, OC Waste & Recycling

POSTED

DEADLINE

Keawakapu (Mana Kai) Parking Lot

Solicitation # P22/004

The County of Maui in Hawaii is soliciting bids for the Keawakapu (Mana Kai) Parking Lot project under solicitation number P22/004. Interested parties must submit their proposals by the deadline of October 2, 2026. The primary point of contact for this solicitation is Kris Arisumi. To be considered, bidders must download, complete, and sign the official proposal document and upload it with their submission. Additionally, a bid bond is required as part of the submission package. All documentation and bids should be processed through the specified public purchase portal.

POSTED

DEADLINE

Mechanical Dredging ServicesThis subcontract for Mechanical Dredging Services is issued by the Engineering Department of the Tahoe City Public Utility District in California. The selected contractor will provide mechanical dredging for prime contractors, utilizing a floating barge and an excavator with a clamshell bucket to remove soil, organics, and debris. The primary objective is to restore the lakebed to a specific design elevation of 6,219 feet. All operations must strictly comply with Section 10 of the Rivers and Harbors Act of 1899 and obtain the necessary DA authorization. The project falls under NAICS code 237990, with a response deadline set for September 30, 2026.

Engineering Department of Tahoe City Public Utility District

POSTED

DEADLINE

Lake Forest Boat Ramp Maintenance Dredging Project

Solicitation # 0051

The Lake Forest Boat Ramp Maintenance Dredging Project, managed by the Engineering Department of the Tahoe City Public Utility District in California, involves the removal of approximately 400 cubic yards of material from the boat ramp fairway. The scope of work encompasses all necessary labor, materials, tools, equipment, and incidentals required to complete the dredging and associated items as specified in the construction drawings. This solicitation, identified by number 0051, requires a bid bond of 10.00 percent. The project was posted on September 5, 2026, with a response deadline of September 30, 2026, at 8:00 PM. Interested parties may contact Cory Allison for further information regarding this SLED organization opportunity.

Engineering Department of Tahoe City Public Utility District

POSTED

DEADLINE

Chain Link Fencing and Gates Installation- South Kohala

Solicitation # B27000130

The Department of Hawaiian Home Lands Land Management Division is soliciting quotes under solicitation number B27000130 for the installation of chain link fencing and gates at the South Kohala Distribution Road property and three nearby burial site lots in Hawaii. The scope of work involves installing approximately 1,365 linear feet of 6-foot chain link fencing along the western boundary of the property, as well as additional fencing at the burial lots, which must be field verified by the contractor. The solicitation was posted on September 4, 2026, with a response deadline of October 10, 2026. This project is governed by the AG-008 103D General Conditions, which establish the legal framework for the contract, including provisions for indemnification, payment procedures, personnel requirements, and compliance with state laws. Primary contact for this opportunity is Ashley Tabalno.

Department of Hawaiian Home Lands

POSTED

1 day ago

DEADLINE

in about 1 month

AI Contract Overview

The contract pertains to site excavation and earthwork activities necessary for the installation of a water main, encompassing site preparation, trenching, shoring, and backfilling. Work scope includes all earthmoving operations required to accommodate the new water infrastructure, ensuring safe and compliant excavation practices with appropriate soil stabilization and support systems during construction. The project is structured as a subcontract under the Public Works agency in Washington, with performance location unspecified but implied to be within the agency’s jurisdiction. The NAICS code 237990 classifies this as other heavy and civil engineering construction, indicating non-specific utility line construction work. The solicitation was posted on July 1, 2026, with a response deadline of July 29, 2026, providing a four-week window for interested parties to submit proposals. No set-aside designation or point of contact details are provided, and the procurement is accessible via an online portal linked to the City of Seattle’s public procurement system.