This Government Contract opportunity from California was posted on July 9, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Site Grading and Earthwork

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State & Local

Submission Closed08/06/2026, 01:00:00 AM UTC

Contract Overview

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

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NAICS: 237990

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DIBBS

Site Grading and EarthworkThe contract titled Site Grading and Earthwork is a subcontract for excavation, grading, and soil stabilization work intended to prepare construction sites for future development. It is issued under NAICS code 237990 and managed by the Department of Defense through the CONSTRUCTION & EQUIPMENT MRO SVC I organization, with the place of performance specified as Tinker Air Force Base, Oklahoma, zip code 73145-8000. The solicitation was posted on August 5, 2026, and responses are due by August 17, 2026, providing a twelve-day window for contractors to submit proposals. The work requires specialized expertise in earthmoving and ground preparation to ensure site stability and compliance with construction readiness standards. No set-aside classification is specified, indicating the opportunity is open to all eligible subcontractors regardless of size or designation. Interested parties must access the full solicitation details through the provided DIBBS link to review technical specifications, performance requirements, and submission instructions.

CONSTRUCTION & EQUIPMENT MRO SVC I

POSTED

DEADLINE

AIRFIELD 2028 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract targets comprehensive upgrades to the airfield infrastructure at the Port of Seattle, focusing on modernizing lighting systems by replacing circuits with low megger readings and installing energy-efficient LED fixtures and signage throughout the airfield. Parallel efforts will address deteriorating pavement and critical utilities to ensure operational safety and longevity. Wildlife hazard management is a key component, involving the removal of turf edge dams along runways, taxiways, and access roads, installation of anti-perching devices on airfield signs, and mitigation of ponding through regrading and new storm drainage systems to reduce bird activity and water accumulation. Additionally, failing flush fire hydrant access hatches will be replaced to improve emergency response access and compliance with safety standards. The project is forecasted under NAICS code 237990 and is managed by the Aviation Project Management Group, with Yanet Maldonado listed as the primary point of contact for inquiries.

Aviation Project Management Group

POSTED

DEADLINE

AIRFIELD 2030 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract encompasses a broad range of airfield infrastructure upgrades at the Port of Seattle, focusing on enhancing safety, efficiency, and compliance. Key components include replacing aging airfield lighting circuits with low megger readings with modern LED fixtures and signs to improve visibility and reduce maintenance costs. Concurrently, failing pavement sections and critical utilities will be removed and replaced to ensure structural integrity and operational reliability. Wildlife hazard mitigation measures involve removing turf edge dams along runways, taxiways, and access roads, installing anti-perching devices on signs to deter birds, and addressing ponding issues through regrading and new storm drainage infrastructure. Additionally, deteriorating flush fire hydrant access hatches will be replaced to ensure rapid access for emergency response teams. The project is categorized under NAICS code 237990 and falls under the Aviation Project Management Group, with the Port of Seattle as the overseeing agency. The solicitation is posted as a forecast with no set-aside classification, indicating it is open to all eligible contractors. Primary point of contact for inquiries is Yanet Maldonado, reachable via email or phone, and additional details can be accessed through the provided portal link. The project is anticipated to begin after the posted date in July 2026, with all work taking place at the airport facility.

Aviation Project Management Group

POSTED

DEADLINE

AIRFIELD 2029 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract encompasses a broad range of airfield infrastructure improvements at the Port of Seattle, focusing on modernization and safety enhancements across multiple systems. Key components include replacing airfield lighting circuits with low megger readings with new LED fixtures and signs to improve reliability and energy efficiency, replacing deteriorating pavement and critical utilities to maintain operational integrity, and implementing comprehensive wildlife hazard management measures such as removing turf edge dams, installing anti-perching devices on signs, and regrading areas with new storm drainage to eliminate ponding and reduce bird attractants. Additionally, failing flush fire hydrant access hatches will be replaced to ensure rapid and unobstructed access for emergency response. The project is part of the AIRFIELD 2029 ALL PROJECTS initiative, classified under NAICS code 237990 for other heavy and civil engineering construction, and is managed by the Aviation Project Management Group under the Port of Seattle. Solicitations are open with a posted date of July 31, 2026, and inquiries should be directed to Yanet Maldonado, the primary point of contact. The work is critical to maintaining airfield safety, regulatory compliance, and long-term operational readiness, with all efforts centered on upgrading aging infrastructure to meet current aviation standards.

Aviation Project Management Group

POSTED

DEADLINE

Jack Block Park Pier ReplacementThe Northwest Seaport Alliance, acting through the Port of Seattle, is forecasting a project to demolish the existing end-of-life pier at Jack Block Park and construct a new pier in its place, along with associated repairs to the pier plaza. This effort aims to modernize aging infrastructure to ensure safety, functionality, and long-term durability for public use and maritime operations. The North American Industry Classification System code 237990 indicates the work falls under other heavy and civil engineering construction, encompassing the full scope of demolition, new construction, and site improvements. The primary point of contact for inquiries is Yanet Maldonado, with Valerie Huffman serving as the project manager, both reachable through the Port of Seattle's official channels. The forecast notice was posted on July 31, 2026, signaling an upcoming procurement process that will solicit qualified contractors to deliver the project at the designated site in Jack Block Park.

Northwest Seaport Alliance (NWSA)

POSTED

DEADLINE

2027 Airfield Project - Contract 1The Port of Seattle’s Aviation Project Management Group is forecasting a comprehensive airfield modernization initiative under Contract 1 for 2027, focused on upgrading critical infrastructure to enhance safety, efficiency, and compliance. The project encompasses replacing aging airfield lighting circuits with low megger readings with new LED fixtures and signage, improving visibility and reducing maintenance loads. Simultaneously, failing pavement sections and essential utilities throughout the airfield will be reconstructed to ensure structural integrity and operational reliability. Wildlife hazard mitigation is a major component, involving the removal of turf edge dams along runways, taxiways, and access roads, installation of anti-perching devices on airfield signs to deter birds, and the regrading of low-lying areas coupled with new storm drainage systems to eliminate ponding that attracts wildlife. Additionally, degraded flush fire hydrant access hatches will be replaced to ensure rapid and unobstructed access for emergency response crews. The project falls under NAICS code 237990 and is managed by the Port of Seattle, with Jay Kim as the primary point of contact and Mengqi Wu serving as the project manager. The solicitation is publicly available through the Port’s portal, though no set-aside type has been specified.

Aviation Project Management Group

POSTED

DEADLINE

2027 Airfield Project - Contract 2The contract involves comprehensive upgrades to the airfield infrastructure at the Port of Seattle, focusing on critical safety and operational enhancements. Key components include replacing airfield lighting circuits with low megger readings and installing new LED lighting fixtures and signs to improve visibility and energy efficiency. Aging pavement and essential utilities will be replaced to ensure structural integrity and reliable service. Wildlife hazard mitigation efforts will remove turf edge dams along runways and taxiways, install anti-perching devices on airfield signs to deter birds, and address ponding issues through regrading and the installation of new storm drainage systems. Additionally, failing flush fire hydrant access hatches will be replaced to ensure unimpeded access for emergency response. The work is scheduled under the 2027 Airfield Project – Contract 2, managed by the Aviation Project Management Group, with primary contact details provided for Moraa Omwega and Project Manager David Neds.

Aviation Project Management Group

POSTED

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T18 Lift Station ReplacementThe Port of Seattle through its Waterfront Project Management division is preparing to replace the entire lift station located at the north lunchroom in Terminal 18. This project is classified under NAICS code 237990, indicating it relates to other heavy and civil engineering construction activities, specifically targeting the removal and installation of a fully functional wastewater lift system. The solicitation was posted on July 31, 2026, and is currently listed as a forecast, meaning it is an early indication of procurement intent without an open bid at this time. The work will require complete replacement of the existing infrastructure to ensure continued operational reliability and compliance with safety and environmental standards. Primary contact for inquiries is Angela Peterson, reachable via phone or email, with Crystal Cuellar serving as the project manager overseeing execution. The place of performance is confirmed as Terminal 18, though specific address details are not provided in the data.

Waterfront Project Management

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DEADLINE

Həʔapus Park Redevelopment - ConstructionThe Həʔapus Park Redevelopment project, managed by the Port of Seattle under Waterfront Project Management, will deliver a comprehensive upgrade to park infrastructure including new restrooms, enhanced pathways and lighting, a boot washing station, dog-friendly amenities, wayfinding and interpretive signage, and a hand-carrying boat launch. Work will be carefully phased to comply with environmental permitting requirements, particularly for in-water construction activities, and will be timed to avoid disruption to tribal fisheries. The project is targeted for substantial completion by the second quarter of 2028. Primary contact for inquiries is Angela Peterson, with Julie Yun serving as Project Manager, and further details can be accessed through the Port’s official solicitation portal.

Waterfront Project Management

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45th Ave SW Culvert Replacement and Habitat Restoration

Solicitation # 45th-ave-sw-culvert-replacement-habitat-restoration

The City of Seattle is soliciting bids for the replacement of a culvert along 45th Avenue SW and the associated restoration of surrounding habitat in King County, Washington. The project involves removing the existing infrastructure and installing a new culvert system to improve drainage, structural integrity, and environmental flow, while also implementing ecological restoration measures to enhance native vegetation and aquatic habitat. The solicitation is designated to encourage participation from Minority Business Enterprises certified by the NMSDC and Woman Business Enterprises certified by WBENC, supporting diversity in contracting opportunities. The North American Industry Classification System code for the project is 237990, indicating it falls under other heavy and civil engineering construction. The contract opportunity is managed by Shimmick Construction Company, Inc., which serves as both the agency and contracting entity, with Jamie Miranda listed as the primary point of contact for inquiries. All bids must be submitted by August 12, 2026, with the solicitation posted on August 5, 2026. The work will be performed on-site at 45th Avenue SW in Seattle, and interested parties are directed to the provided web link for additional details.

Shimmick Construction Company, Inc

POSTED

DEADLINE

Aerial Structures Rehab

Solicitation # aerial-structures-rehab

The contract solicitation titled Aerial Structures Rehab is issued by WMATA with the bid/contract number FRBIR266247/LAN and is focused on rehabilitation work for aerial structures located in Washington DC. The solicitation was posted on August 5, 2026, with a response deadline of August 19, 2026, and is designated as a small business set-aside under the SBA program, specifically reserved for Small Business and Small Disadvantaged Business concerns. The NAICS code 237990 indicates this is for other heavy and civil engineering construction, targeting specialized infrastructure repair. The contracting office is Posillico Civil, Inc., serving as both the organization and the agency name, with Robyn Alma listed as the primary point of contact, reachable via email and phone. The place of performance is clearly defined as the District of Columbia, though no specific street address is provided. Bidders must respond through the official SBA opportunity portal, with additional details available through the provided UI link.

Posillico Civil, Inc.

POSTED

DEADLINE

Earthwork and ExcavationThe contract involves earthwork and excavation services for drainage improvements, including the removal of failed material, slope regrading, ditching, grading, and soil stabilization measures to ensure long-term structural integrity and proper water flow. Work will focus on preparing and reshaping terrain to support effective drainage systems, with attention to erosion control and landform stability. All activities must comply with engineering specifications to address existing failure conditions and prevent future degradation. This is a subcontract under the Texas Department of Transportation, posted on August 5, 2026, with responses due by September 2, 2026. The North American Industry Classification System code is 237990, indicating other heavy and civil engineering construction. The place of performance is within Texas, though specific location details are not provided. The contract is accessible through the Texas SmartBuy portal, and there is no set-aside designation specified. No point of contact information is included in the posting.

Texas Department of Transportation

POSTED

about 9 hours ago

DEADLINE

in 28 days

AI Contract Overview

The contract titled Site Grading and Earthwork requires the excavation, grading, and compaction of subgrade for a building pad and access roads, with work to be performed in Kern County, California. The solicitation is classified as a subcontract under NAICS code 237990, indicating it falls within the other heavy and civil engineering construction category. The opportunity was posted on July 9, 2026, with a response deadline of August 6, 2026, at 1:00 AM Pacific Time. The contracting agency is CAL FIRE, the California Department of Forestry and Fire Protection, and no set-aside designation has been specified, meaning the contract is open to all eligible bidders without preference based on business size or other categories. All work must comply with the technical and performance requirements outlined for site preparation, ensuring proper ground stability and accessibility as part of a larger infrastructure or facility development project. Further details and submission instructions are available through the provided eProcurement link.