This Government Contract opportunity from Smithsonian Institution was posted on May 4, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Civil Site Preparation and Grading

Closed

Federal

Submission Closed06/22/2026, 07:00:00 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

SLED

Gas Utility Improvements

POSTED

DEADLINE

ALTA, RIVERVIEW, AND KINGS CANYON HIGH WELL DRILLING PHASE

Solicitation # alta-riverview-kings-canyon-high-well-drilling-phase

The Alta, Riverview, and Kings Canyon High Well Drilling Phase project, identified as Project No. 1000316-001C, is a solicitation issued for the Kings Canyon Unified School District. The scope of work involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This opportunity is categorized under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This solicitation is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The posting date is October 28, 2026, with a response deadline set for November 10, 2026. Interested parties may contact Jennah Castagna for further information regarding the submission process.

Anthony J. Prieto Water Well Drilling, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin-0

The Recharge Master Plan Update Basin Improvements Project, managed by Granite Construction Company, involves the construction of two drop inlet diversion structures across the San Antonio Creek Channel in Montclair, California. The scope of work includes excavating 8 to 10 feet below the channel floor, installing steel debris grates, and fitting wall-mounted steel gates on the east sides of the structures. Additionally, the project requires the installation of 4-foot-diameter discharge pipelines leading to Montclair Basins 2 and 3, which will be covered by 3 feet of soil and terminate in concrete outlet structures designed for flow dissipation. The project also encompasses the delivery of full electrical, instrumentation, and SCADA integration to manage gate actuation. Programming for these systems is strictly limited to approved integrators, specifically Technical Systems, Inc. or E Technologies Group. This solicitation is categorized under NAICS code 237990 and is designated as a Disadvantaged Business Enterprise set-aside. Interested parties must respond by November 5, 2026.

Granite Construction Company

POSTED

DEADLINE

ARWA Carrizo System Expansion: Well Drilling

Solicitation # arwa-carrizo-system-expansion-well-drilling

The Alliance Regional Water Authority is seeking bids for the Carrizo System Expansion project focusing on well drilling services located in Rosanky, Texas. This solicitation, identified as ARWA IFB Number 2026-001, is managed by Hydro Resources - Mid Continent, Inc. and falls under NAICS code 237990. The opportunity is specifically set aside for Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 3, 2026. Primary coordination for this contract is handled by Amy Majors.

Hydro Resources - Mid Continent, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin

Empire Equipment Service, Inc. is soliciting quotes for the Construction of The Recharge Master Plan Update Basin Improvements Project, specifically focusing on the Montclair Basins 2 and 3 Diversion Improvements at the San Antonio Creek Channel in Montclair, California. This project is being conducted for the Inland Empire Utilities Agency and falls under NAICS code 237990. The opportunity is specifically seeking certified DBE and DVBE subcontractors and suppliers, with set-asides available for various small business categories including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone certified businesses. Interested parties must submit their responses by November 5, 2026. Primary inquiries should be directed to Gio Marquez via the provided estimating email or phone contact.

Empire Equipment Service, Inc.

POSTED

DEADLINE

Site Compliance and Improvements - Patton Landing

Solicitation # site-compliance-improvements-patton-landing

The State of California Department of General Services is seeking bids for the Site Compliance and Improvements project at Patton Landing, located in Carnelian Bay, Placer County. This solicitation, identified by Project Number 13891 and Event ID 0000040533, focuses on site compliance and infrastructure enhancements under NAICS code 237990. The opportunity is specifically set aside for SBA certified Service-Disabled Veteran Owned Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 10, 2026. Primary coordination for this project is managed through Nayvi Waite at Resource Development Company LLC.

Resource Development Company LLC

POSTED

DEADLINE

Structural Repair at NCMT Berths 24-3 and 24-4, CA

Solicitation # structural-repair-ncmt-berths-24-3-24-4-ca

This solicitation, issued by Griffith Company, concerns structural repair work at NCMT Berths 24-3 and 24-4 located in California. The scope of work involves the demolition and removal of existing concrete decks, pile caps, and appurtenances, followed by the construction of a new reinforced concrete deck. Additionally, the project requires the repair of existing piles, the installation of pile jackets, and the replacement of various waterfront elements, including bull rails, wale systems, fenders, and mooring hardware such as bollards. The opportunity is set aside for small businesses under NAICS code 237990. Interested parties must submit their responses by the deadline of November 4, 2026. For further inquiries, the primary point of contact is Savana Powell.

POSTED

DEADLINE

ADVANCE NOTICE: Rail Modernization Program

Solicitation # WMATA-0000010871

The Washington Metropolitan Area Transit Authority has issued an advance notice for the Rail Modernization Program under solicitation number WMATA-0000010871. This solicitation is categorized under NAICS code 237990, which pertains to other heavy and civil engineering construction. Interested parties have until September 30, 2027, to submit their responses. Further details and bidding information can be accessed through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Solicitation # 26-0075-MA

The City of Clearwater is soliciting bids for the Seminole Boat Ramp Restoration project in Clearwater, Florida. The scope of work involves the comprehensive repair and reconstruction of eight launching ramps across four bays, designed to accommodate vessels exceeding 35 feet and weighing over 10 tons. Key project activities include the demolition of existing concrete structures, dredging and grading of native soils, placement of various gravel fills, and the installation of new concrete ramps using either a precast slab system or pour-in-place solution. Additionally, the contractor is responsible for the temporary relocation and re-anchoring of floating docks to ensure ADA-compliant travel, the installation of articulated concrete mattresses for scour protection, and the implementation of strict environmental controls, including turbidity curtains and stormwater pollution prevention plans. Bidders must be pre-qualified in Marine Construction for at least 750,000 dollars and provide a bid security deposit equal to 10 percent of their maximum bid price. The project must be completed within 180 calendar days from the Notice to Proceed, with a hard deadline for full public restoration by February 15, 2027. To minimize public disruption, the contract limits the simultaneous closure of all four ramps to a maximum of 45 calendar days. Performance will be verified through third-party topographic surveys, with acceptance based on post-grading soundings compared to the design template. Progress payments will be prorated monthly based on the physical percentage of project completion.

POSTED

DEADLINE

Site Work and EarthworkThis subcontract for Site Work and Earthwork involves comprehensive site preparation for a school addition project managed by the Henry County Board of Education in Georgia. The scope of work includes critical early-stage construction activities such as clearing and grubbing, rough grading, soil stabilization, and trenching for utilities. The primary objective is to deliver a fully graded building pad and a site properly prepared for subsequent foundation work and drainage requirements. The solicitation was posted on October 28, 2026, with a response deadline set for December 3, 2026. Classified under NAICS code 237990, the contract requires the selected subcontractor to coordinate closely with prime contractors to ensure all excavation and grading specifications are met to prepare the facility for vertical construction.

Henry County Board of Education

POSTED

DEADLINE

Carlson Field Athletic Complex: Construction of new Pickleball Courts

Solicitation # BCP-REC-26

The Town of Hingham, Massachusetts, is soliciting sealed bids for the construction of eight new pickleball courts at the Carlson Field Athletic Complex located at Bare Cove Park Drive. This project, with an estimated construction cost of $1,300,000, involves comprehensive site work including the removal of trees and shrubs, site re-grading, and the installation of post-tension courts, posts, nets, walkways, benches, shade shelters, fencing, and sound attenuation. Additionally, the contractor will construct a new asphalt parking lot and ADA-compliant pathways. The awarded contractor must coordinate with the Town and the demolition contractor, Pasquazzi Bros, Inc., and is responsible for the installation and maintenance of construction fencing and erosion control throughout the project duration. The contract will be awarded to the lowest responsible and eligible bidder who meets strict minimum qualifications, including at least seven years of experience in constructing sports courts and a proven track record of building post-tension courts, including at least one for a Massachusetts municipality within the last three years. Bids must be submitted as a fixed lump sum via the OpenGov portal by November 3, 2026. The project is governed by Massachusetts General Law Chapter 30, Section 39M, and requires strict adherence to prevailing wage schedules, OSHA regulations, and the Buy America Act. Key financial requirements include a 5% bid security, a payment bond equal to 50% of the total project cost, and a 5% retainage on monthly progress payments. The contractor must provide a minimum one-year warranty for labor and a two-year warranty for materials.

POSTED

DEADLINE

Underground Parking Structure ConstructionThis subcontract involves the excavation and structural construction of an underground parking facility for the City of Hawthorne in California. The project requires the delivery of a completed and inspected structure providing approximately 170 parking spaces, which must include the necessary structural support to accommodate a park located directly above the facility. The scope of work necessitates the use of heavy excavation equipment and the implementation of reinforced concrete systems. The project is located in Hawthorne, California, zip code 90250, and falls under NAICS code 237990. Interested parties must note that the response deadline for this opportunity is January 27, 2027.

City of Hawthorne, California

POSTED

about 5 hours ago

DEADLINE

in 3 months

AI Contract Overview

The contract scope involves civil site preparation for a 12-acre agrivoltaics solar installation, including clearing vegetation, grading the land to ensure proper solar panel placement and drainage, implementing erosion control measures, and designing and installing stormwater management systems to comply with environmental regulations. The work must be completed at the Edgewater location with a postal code of 21037, where the site will support the dual use of solar energy generation and agricultural activity. The project is classified under NAICS code 237990, indicating it falls under other heavy and civil engineering construction, and is issued as a subcontract. The solicitation was posted on May 4, 2026, with a deadline for responses set for June 22, 2026, at 7:00 PM. The contracting organization is the Smithsonian Institution, which is seeking qualified vendors to deliver site preparation services in alignment with sustainability and regulatory standards for renewable energy infrastructure.

General Info

Civil site preparation and grading for 12-acre agrivoltaics solar site in Edgewater, subcontract opportunity.

Agency

Smithsonian Institution

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

Edgewater, MD, 21037, USA

Set-Aside

NONE

Documents

This scope was carved out of 333302-26RF-0010008.

The full solicitation package (16 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

333302-26RF-0010008 Design Build - SERC Solar Arrays for Agrivoltaics Research

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed

PostedMay 4

subcontract

Response DeadlineJun 22

Deadline has passed

Submission Closed

06/22/2026, 07:00:00 PM UTC

Find active opportunities like this

Get full access to discover similar active contracts, track opportunities, and build proposals with AI assistance.

Organization & Contact Information

AgencySmithsonian Institution

ContactsNo contacts available

OfficeN/A

Organization / AgencySmithsonian Institution

Office AddressN/A

ContactsNo contact information available

Full Description

Clearing, grading, erosion control, and stormwater management for a 12-acre agrivoltaics solar site.

More opportunities from Smithsonian Institution

Same awarding agency

Civil Site Preparation and Grading

Contract Overview

Active Opportunities Like This One

AI Contract Overview

General Info

Documents

AI Contract Breakdown

No documents to break down

Timeline

Find active opportunities like this

Organization & Contact Information

Full Description

More opportunities from Smithsonian Institution

Earlier notices in this NAICS code

Get AI-powered intelligence on the opportunities still open