This Government Contract opportunity from Texas was posted on January 1, 1970. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Riprap and Rock Filter Dam Installation

Closed

State & Local

Submission Closed11/01/2026, 12:00:00 AM UTC

Contract Overview

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

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NAICS: 561730

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City of Westminster – Wakefield Valley Park

Solicitation # city-westminster-wakefield-valley-park

Conewago Enterprises, Inc. is soliciting bids from qualified Disadvantaged Business Enterprises for the City of Westminster Wakefield Valley Park project located in Maryland. The submission deadline for bids is November 18, 2026, at 12 PM EST, though this date may be subject to change based on future addenda. Available subcontracting and supply opportunities include fencing, landscaping, painting, seeding, surveying, and tree removal. Interested parties should contact the Estimating Department via email at [email hidden] to obtain the necessary bidding documents or to ask specific questions regarding the solicitation.

Conewago Enterprises, Inc.

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DEADLINE

Tree Planting & Installation ServicesThis subcontract for Tree Planting and Installation Services supports prime contractors on projects for the City of Saint Paul Department of Parks and Recreation. The scope of work involves the full physical installation process for nursery stock, including marking locations, verifying utilities, excavating pits, and the setting, backfilling, watering, mulching, and staking of both container and ball-and-burlap trees. Contractors are expected to utilize heavy equipment such as backhoes and skid steers to complete these tasks. Compliance with industry standards is mandatory, specifically requiring that all work adheres to ANSI A300 Part 6. Additionally, forepersons overseeing the installation must hold a MnDOT Landscape Specialist Certification. Interested parties must submit their responses by December 2, 2026.

POSTED

DEADLINE

RFB-PARKS-2027 CITYWIDE TREE PLANTING

Solicitation # 1764

The City of Saint Paul is soliciting bids for solicitation 1764, the RFB-PARKS-2027 Citywide Tree Planting project. The selected contractor will provide all labor, equipment, and materials for the annual planting of various tree species, including a wide array of oaks, maples, elms, and lindens, all requiring a minimum 1.5-inch caliper. The scope of work encompasses site preparation, excavation of planting pits, debris disposal, and site restoration, with all operations adhering to ANSI A300 Part 6 and ANSI Z133 standards. The contract is awarded to the lowest responsible bidder based on the Total Base Bid. Key administrative requirements include compliance with Davis-Bacon prevailing wage laws, the submission of certified payroll via LCPtracker, and adherence to the Vendor Outreach Program for local small, minority, and women-owned businesses. The contractor must provide a qualified on-site foreperson with a MnDOT Landscape Specialist Certification. Performance is subject to strict quality standards under ANSI Z60.1-2014 and the Minnesota Nursery and Landscape Act. The City employs a two-stage acceptance process consisting of Provisional Acceptance following an initial inspection and Final Acceptance after a designated guarantee period. Failure to complete work by the planting deadline results in liquidated damages of 1,000 dollars per calendar day. Responses must be submitted electronically via the Supplier Portal by December 2, 2026, at 2:00 PM Central Time.

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DEADLINE

Landscaping and Grounds MaintenanceThis subcontract for Landscaping and Grounds Maintenance involves providing irrigation, planting, tree trimming, and general grounds upkeep for prime contractors working on Somis Union School District projects in Somis, California. The primary objective is to ensure the delivery of well-maintained school grounds through professional landscaping services. To be eligible, contractors must hold a current California State Contractor's License and maintain a valid registration with the State of California Department of Industrial Relations. The opportunity was posted on November 2, 2026, with a response deadline set for November 3, 2027.

SOMIS UNION SCHOOL DISTRICT

POSTED

DEADLINE

PM-10 Compliant Street Sweeping OperationsThis subcontract for PM-10 Compliant Street Sweeping Operations involves providing specialized cleaning services for prime contractors on California Department of Parks and Recreation projects located in San Luis Obispo. The scope of work focuses on the removal of litter, leaves, dirt, and sand from road surfaces and curb gutters on Pier Avenue. To ensure environmental compliance, the contractor must utilize PM-10 efficient street sweepers capable of removing particulate matter smaller than 10 microns. Performance verification is a critical component of the contract, requiring the use of integrated GPS tracking to document work completion. The contractor is responsible for delivering cleaned roadway surfaces along with detailed monthly service logs supported by GPS data. The solicitation was posted on November 2, 2026, with a response deadline of November 20, 2026, falling under NAICS code 561730.

California Department of Parks & Recreation

POSTED

DEADLINE

Comprehensive Lawn Maintenance & LandscapingThis subcontract for Comprehensive Lawn Maintenance and Landscaping involves providing full-scale grounds upkeep for Alabama Department of Human Resources facility projects located in Double Springs, Alabama. The scope of work includes routine grass mowing, weed removal from parking lots and sidewalks, blowing clippings, and fine mulching of leaves to ensure a professional facility exterior. Additional specialized maintenance requires trimming shrubs and hedges twice a year and managing water retention areas through a monthly schedule of cutting and spraying. This project falls under NAICS code 561730 and is coordinated through the DHR Winston County Office.

DHR Winston County Office

POSTED

DEADLINE

DHR Winston Co - FY27 Lawn Service

Solicitation # SRC0000037239

The DHR Winston County Office of Alabama is soliciting quotes for comprehensive lawn maintenance services at 156 Blake Dr., Double Springs, Alabama. The scope of work includes general lawn cutting, debris removal, shrub and hedge trimming twice per year, and six monthly cuts for water retention areas and ponds between April and September. A mandatory site visit was scheduled for October 30, 2026, and the primary period of performance runs from October 1, 2026, through September 30, 2027. The contract is firm and fixed, with the possibility of annual renewals for up to five years or until a total cost of 25,000 dollars is reached. Financial terms include a price escalation cap of 5 percent of the annual contract cost, not to exceed the 25,000 dollar total limit. Payment is set at net 30 days in arrears following the completion of services, and vendors must accept electronic payments such as P-cards and EFT. Award decisions are based on pricing, cost realism, and supplier qualifications. All responses must be submitted electronically through the Alabama Buys portal, and bidders must certify compliance with Alabama state tax laws and non-collusion agreements.

DHR Winston County Office

POSTED

DEADLINE

Sodding and Topsoil ApplicationThis subcontract opportunity with the City of San Antonio in Texas focuses on sodding and topsoil application for street rehabilitation projects. The selected contractor will be responsible for final site stabilization and landscaping, specifically applying topsoil and installing sod to restore project areas to their required condition. The solicitation was posted on November 2, 2026, with a response deadline of December 15, 2026. Classified under NAICS code 561730, the contract requires the delivery of fully sodded and topsoiled areas to support prime contractors in completing their infrastructure work.

POSTED

DEADLINE

Steep Slope and Retention Pond Vegetation ManagementThis subcontract for Steep Slope and Retention Pond Vegetation Management involves providing specialized rough-cutting and clearing services for the Columbus Airport Commission in Georgia. The contractor is responsible for the quarterly maintenance of high-risk terrain, specifically focusing on steep hillsides and retention ponds while ensuring the protection of drainage headwalls. To execute these tasks, the use of slope mowers or remote-controlled mowing equipment is required to safely manage vegetation in steep and wet zones. Due to the nature of the work site, personnel must undergo TSA vetting and obtain SIDA badging. Additionally, the contractor must possess specialized training in the operation of steep-slope equipment. Interested parties must submit their responses by November 30, 2026, under NAICS code 561730.

Columbus Airport Commission

POSTED

DEADLINE

Herbicide Application and String Trimming ServicesThis subcontract for Herbicide Application and String Trimming Services involves providing specialized vegetation control for the Columbus Airport Commission. The selected contractor will be responsible for the monthly application of herbicides using industrial sprayers across critical airport infrastructure, including runways, taxiways, aprons, ramps, and asphalt areas, as well as performing precision trimming and managing SWPPP Outfalls. The primary objective is to maintain weed-free pavements while strictly adhering to SWPPP guidelines to prevent environmental runoff. To qualify for this role, the contractor must possess a Georgia state commercial pesticide and herbicide applicator license and successfully complete TSA vetting to obtain SIDA badging. Key deliverables include the maintenance of detailed application logs to document all services performed. Interested parties must respond by November 30, 2026, under NAICS code 561730.

Columbus Airport Commission

POSTED

DEADLINE

Commercial Mowing and Turf Maintenance (Airside/Landside)This subcontract for Commercial Mowing and Turf Maintenance involves providing vegetation control services for prime contractors on Columbus Airport Commission facility projects. The scope of work includes weekly clean-cuts in high-visibility areas and quarterly rough cuts for retention ponds and hillsides. Because the work occurs in sensitive airfield and landside environments, personnel must operate commercial mowers around frangible fixtures and airfield lights while maintaining constant communication with the Air Traffic Control Tower via two-way radios. Compliance and security are critical components of this agreement, requiring all staff to undergo TSA vetting and obtain SIDA badging in accordance with FAA Part 139 regulations. The contractor is responsible for delivering properly maintained vegetation and providing dated maintenance logs to document all completed work. This opportunity is categorized under NAICS code 561730 and is associated with the state of Georgia.

Columbus Airport Commission

POSTED

DEADLINE

Airfield, Landside & Airport-Owned Property Landscaping Services

Solicitation # 20261231

The Columbus Airport Commission is soliciting fixed-price proposals for comprehensive mowing, vegetation management, trimming, and landscaping services for approximately 300 acres of airfield, landside, and airport-owned properties in Georgia. The contract spans a two-year base term from January 1, 2027, through December 31, 2028, with an optional third year. The scope of work is detailed in Exhibit A and includes a variety of maintenance levels, ranging from weekly clean-cuts to quarterly rough cuts, as well as monthly spraying and string trimming of asphalt and runways. The selected contractor must maintain vegetation at a target maximum height of four inches and ensure all pavements and navigational equipment remain clear of debris. Award selection is based on best value rather than price alone, utilizing a scoring system that evaluates key personnel qualifications, relevant experience, and a proposed management plan alongside the cost. Contractors must adhere to strict operational safety and security standards, including FAA Part 139 and TSA requirements, and obtain SIDA badging and ATCT clearance for movement-area access. Work hours are generally restricted to between 9:00 a.m. and 9:00 p.m. Insurance requirements include a minimum of 2,000,000 dollars for bodily/personal injury and 1,000,000 dollars for property damage. Proposals must be submitted by November 30, 2026, and include detailed monthly pricing by zone.

Columbus Airport Commission

POSTED

about 7 hours ago

DEADLINE

in 27 days

AI Contract Overview

This subcontract focuses on the installation of concrete riprap and rock filter dams for prime contractors working on Texas Department of Transportation projects located in Denton, Texas. The scope of work includes the installation of 5-inch concrete riprap, 4-inch MOW strip riprap, and Type 3 Rock Filter Dams, as well as the necessary removal of existing dams. All activities must be performed in strict accordance with TxDOT Standard Specifications to ensure quality and compliance. The contract remains open for responses until November 1, 2026, and falls under the NAICS code 561730 for landscaping and related services.

General Info

Subcontract for TxDOT concrete riprap and rock filter dam installation in Denton, Texas.

Agency

Texas Department of Transportation

NAICS

561730 - Landscaping Services

Place of Performance

Denton, TX, USA

Set-Aside

NONE

Documents

This scope was carved out of 6497-55-001.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Denton County — CSJ 6497-55-001 — November 2026 Letting — Local-Let Maintenance

AI Contract Breakdown

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Timeline

PhaseClosed

Response DeadlineNov 1

Deadline has passed

Submission Closed

11/01/2026, 12:00:00 AM UTC

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Organization & Contact Information

AgencyTexas Department of Transportation

ContactsNo contacts available

OfficeN/A

Organization / AgencyTexas Department of Transportation

Office AddressN/A

ContactsNo contact information available

Full Description

Installs concrete riprap and rock filter dams for prime contractors on TxDOT projects in Denton, TX. Performs installation of 5-inch concrete riprap, 4-inch MOW strip riprap, and Type 3 Rock Filter Dams, including removal of existing dams. All work must comply with TxDOT Standard Specifications. Delivers installed riprap and rock filter dams.