This Subcontract opportunity from California was posted on August 4, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Geotechnical and Earthwork Monitoring

Closed

State & Local

Submission Closed08/28/2026, 05:00:00 PM PDT

Contract Overview

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

Active Opportunities Like This One

NAICS: 541370

New

International

Transient Electromagnetic (TEM) Field Surveying ServicesThis subcontract involves providing specialized Transient Electromagnetic (TEM) field surveying services to support groundwater assessments for UNICEF projects in Vanuatu. The scope of work focuses on data acquisition, survey design execution, and quality control of datasets at three specific school sites: Nuakwanabu, Greenhill, and Nakuskasaru. The contractor is responsible for utilizing TEM equipment and GPS mapping tools to collect comprehensive metadata and ensure the delivery of high-quality datasets. These technical assessments are performed on behalf of prime contractors to facilitate critical water resource evaluations within the region.

POSTED

DEADLINE

Land Surveying & MappingThis subcontract opportunity with the Sunrise Water Authority involves providing professional land surveying and mapping services for various projects. The selected contractor will be responsible for performing as-built surveys, establishing survey monuments for prime contractors, and filing maps with the county in accordance with Clackamas County standards. Technical requirements include the use of GPS/GNSS equipment, Total Stations, and CAD software, and the project mandates the involvement of a licensed professional land surveyor. The primary deliverables for this engagement include as-built survey maps, filed county maps, and detailed record drawings. Interested parties must submit their responses by December 11, 2026. The work is categorized under NAICS code 541370 and will be performed in Alley, Oregon.

Sunrise Water Authority

POSTED

DEADLINE

The San Joaquin County Department of Public Works is seeking qualifications from land surveying firms to provide professional and technical services on an as-needed basis for various design and construction projects throughout the county. These projects include roadway reconstruction, bridge replacement, and embankment repairs, requiring services such as topographic surveys, right-of-way surveys, and project staking. All work must be supervised by a Licensed Land Surveyor registered in California and adhere to local, state, and federal standards. The agency intends to establish an on-call list of up to four consulting firms for a two-year period, with a possible one-year extension. Selected consultants will operate under a Purchase Agreement with an aggregate assignment limit of 200,000 dollars per fiscal year, though selection does not guarantee a minimum workload. Payment is based on actual cost plus a fixed fee. Consultants may utilize approved subconsultants for traffic control and 3D modeling, provided they adhere to non-discrimination laws during the subcontracting process.

San Joaquin County Department of Public Works

POSTED

DEADLINE

Forestry and Parks - Request for Proposal - Wildfire Investigation Geomatics

Solicitation # AB-2026-07428

The Wildfire Management Branch of Alberta Forestry and Parks is seeking geomatics services to provide high-accuracy forensic mapping and ground-based LiDAR scanning for wildfire investigations within the Forest Protection Area of Alberta. The contractor is responsible for delivering centimeter-accurate data and maps suitable for use as legal evidence. Work is provided on an as-needed basis and may involve demanding conditions, including 12-hour workdays in remote areas accessible only by helicopter or unmaintained roads. The contractor must provide trained personnel, 4x4 vehicles, and all necessary personal protective equipment. While the Province covers aircraft costs for remote access, the contractor is responsible for staff accommodations and meals, which will be expensed back to the Province. Payment is based on a flat hourly rate per service with no overtime pay. Due to the nature of the work, personnel may operate on active criminal investigation scenes and must adhere to discretion and integrity requirements imposed by Forestry and Parks and the RCMP.

POSTED

DEADLINE

Geotechnical Investigation & SurveyingThis subcontract opportunity, titled Geotechnical Investigation and Surveying, is issued by the Bristol Alliance of Companies for projects located at US Army facilities in Kentucky. The selected contractor will be responsible for performing essential field surveys and subsurface investigations to support structural design for prime contractors. Key technical requirements include conducting soil borings, geotechnical investigations, and below-grade utility investigations along the designated work footprint. The final deliverables for this engagement consist of comprehensive geotechnical reports and detailed survey data. Interested parties should note that the response deadline is December 22, 2026, and the work is categorized under NAICS code 541370. Performance of these services will take place in Greenville, Kentucky.

Bristol Alliance of Companies

POSTED

DEADLINE

Public Engagement Web Mapping ServicesThis subcontract for Public Engagement Web Mapping Services involves the development and hosting of an interactive digital platform designed for public safety reporting on City of Dunwoody safety projects. The selected provider will create a web-hosted map to collect and display public safety comments, integrate HIN corridor data, and utilize ArcGIS or QGIS to produce visual summaries and presentation-ready figures to support decision-making. The project requires strict adherence to ADA compliance to ensure web accessibility for all users. The final deliverables include a live interactive map and a series of professional figures. Interested parties should note the response deadline of December 14, 2026, for this Georgia-based initiative categorized under NAICS code 541370.

POSTED

DEADLINE

Underground Utility Locating and Site AssessmentThis subcontract for Underground Utility Locating and Site Assessment involves providing critical site assessments and utility marking services for prime contractors working on Onslow Water and Sewer Authority projects in North Carolina. The selected provider will be responsible for identifying and marking all underground utilities using electromagnetic locators and ground penetrating radar to prevent strikes, while ensuring all work adheres to local regulatory requirements. In addition to utility marking, the contractor must determine necessary traffic control needs and deliver a comprehensive site assessment report. This opportunity falls under NAICS code 541370, with a response deadline set for November 20, 2026.

POSTED

DEADLINE

MT-AO Topographic/Boundary Survey

Bureau of Reclamation

POSTED

DEADLINE

Surveying & As-Built DocumentationThis subcontract for Surveying and As-Built Documentation involves providing high-precision GPS surveying services for prime contractors working on Dalton Utilities projects in Georgia. The scope of work focuses on recording coordinates for underground piping, requiring a minimum of four satellites and a maximum PDOP of 6.0 to ensure technical precision. All dimensional measurements must maintain an accuracy of 0.1 foot. The selected contractor is responsible for delivering final approved As-Built drawings produced in ARC/INFO, AutoCAD, and ArcView formats. This opportunity falls under NAICS code 541370, with a response deadline set for December 17, 2026.

POSTED

DEADLINE

Professional Land Surveying and MappingThis subcontract for Professional Land Surveying and Mapping involves providing high-precision field surveying services for prime contractors working on MDOT MTA facility projects. The scope of work includes conducting topographic surveys, establishing traverses, performing metes and bounds right-of-way surveys, and executing construction stakeouts and geodetic leveling. These tasks will be completed using GNSS and photogrammetry, with the final deliverables consisting of survey maps and control point data. The project requires a Maryland Licensed Professional Land Surveyor to ensure all technical standards are met. Interested parties should note that the response deadline is December 17, 2026. The contract falls under NAICS code 541370 and is associated with the state of Maryland.

POSTED

DEADLINE

Trail Design and Surveying ServicesThis subcontract for Trail Design and Surveying Services involves the professional design and layout of a 1.5-mile single-track trail for municipal park projects in South Carolina. The selected provider will be responsible for creating a trail alignment that follows the natural contours of rolling and wooded terrain, ensuring strict adherence to US Forest Service Trail Class 3 Design Parameters and ADA Title II accessibility guidelines. The scope of work requires the use of GPS surveying equipment for precise mapping. Final deliverables include comprehensive trail design plans and a completed GPS track of the trail. Interested parties must submit their responses by November 24, 2026.

POSTED

DEADLINE

Right-of-Way Surveying and StakingThis subcontract opportunity with Harris County in Texas involves providing professional surveying and staking services for right-of-way boundaries on various county projects. The selected contractor will support prime contractors by utilizing GPS and Total Station equipment to accurately define and mark work boundaries through the delivery of staked right-of-way markers. To be eligible for this contract, the provider must employ a Licensed Professional Land Surveyor registered in the State of Texas. Interested parties should note that the response deadline is November 30, 2026, and the work falls under NAICS code 541370.

Harris County

POSTED

1 day ago

DEADLINE

in 23 days

AI Contract Overview

The contract entails the provision of comprehensive instrumentation and monitoring services to track settlement, excavation support systems, and potential impacts on adjacent properties during foundation and earthwork activities. The work is critical to ensuring structural integrity and public safety throughout the development phase in San Francisco, with monitoring required to detect and respond to any movement or stress indicators in real time. Services must be tailored to the specific geotechnical conditions of the project site and aligned with industry best practices for subsurface and structural surveillance. The contract is classified as a subcontract under NAICS code 541370, indicating it is for engineering services, and was posted on August 4, 2026, with a response deadline of August 29, 2026. The awarding entity is the Mayor’s Office of Housing and Community Development in California, underscoring the public sector nature of the project and its alignment with housing and community development goals. The place of performance is firmly located in San Francisco, and while specific contact details are not provided, interested parties must submit responses through the designated online portal before the deadline to be considered for participation.