This Government Contract opportunity from California was posted on May 13, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Annual Deep Cleaning & System Overhaul of Koi Pond

Closed

State & Local

Submission Closed06/04/2026, 08:30:00 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: 238990

New

SLED

Guardrail, Barrier, and Fencing InstallationThe contract involves the supply and installation of traffic barriers, guardrails, and perimeter fencing specifically along the bridge and approach areas within District 2. It is a subcontract opportunity issued by the Massachusetts Department of Transportation, targeting projects aligned with NAICS code 238990, which covers specialty trade contractors. The solicitation and response deadline are both set for August 28, 2026, indicating a firm timeline for proposal submissions. This contract focuses on enhancing safety infrastructure by installing physical barriers to protect vehicular traffic and secure the perimeter of bridge environments. While the specific location details beyond District 2 are not provided, the project is managed by MassDOT, signaling a public transportation infrastructure priority within the state. Interested parties can access further details and submit proposals through the designated online platform provided by the agency.

Massachusetts Department of Transportation

POSTED

DEADLINE

Mobilization and Site SetupThis subcontract involves the mobilization of equipment, labor, and materials necessary for setting up temporary access roads, laydown areas, and overall site preparation. The work is designated under NAICS code 238990, indicating specialized construction activities. Issued by the Massachusetts Department of Transportation, the contract focuses on activities within District 2. Although no solicitation number or specific organizational set-aside details are provided, the subcontract is critical for enabling the efficient commencement and progress of broader construction projects by establishing the foundational infrastructure needed on site. The deadline for response and posting date are both August 28, 2026, emphasizing a prompt procurement timeline.

Massachusetts Department of Transportation

POSTED

DEADLINE

Bridge Demolition ServicesThe contract involves the complete demolition of Bridge No. C-13-038 (OWR), encompassing all associated debris removal and site clearance tasks. It is a subcontract opportunity issued by the Massachusetts Department of Transportation (MASSDOT) and relates to the NAICS code 238990, which generally covers specialty trade contractors. The project is set to take place in District 2 within Massachusetts, with a response deadline on August 28, 2026. The contract aims to fully remove the existing bridge structure and ensure the site is cleared and prepared following demolition activities.

POSTED

DEADLINE

Temporary Shoring and Support SystemsThis contract involves the design, supply, and installation of temporary shoring systems essential for supporting adjacent structures or excavation activities during bridge demolition and construction projects. The work is critical to ensure structural stability and safety throughout the demolition and construction phases of bridge work. The contract is categorized under NAICS code 238990, which covers specialized construction services. Issued by the Massachusetts Department of Transportation (MASSDOT), the subcontract opportunity is specifically located in District 2 of Massachusetts. The solicitation was posted and has a response deadline on August 28, 2026. While no type of set-aside or specific organization type is identified, the contract emphasizes timely and secure installation of temporary support systems as part of infrastructure improvement efforts in the region.

POSTED

DEADLINE

MSE Wall Design and InstallationThis contract involves the design and construction of Mechanically Stabilized Earth (MSE) retaining walls specifically for bridge approach areas. The scope of work includes not only the structural design and installation of these retaining walls but also encompasses associated drainage work, reinforcement, and coordination with existing utilities to ensure seamless integration within the project site. The contract is a subcontract opportunity facilitated by the Massachusetts Department of Transportation (MASSDOT), with the place of performance identified as District 4. The contract falls under the NAICS code 238990, which typically covers specialty trade contractors. The solicitation was posted and the response deadline is set for June 26, 2026. While some organizational details and contact points are not specified, the public link for submission and further information is available through MASSDOT's bidding portal. This contract represents a critical infrastructure project focused on enhancing bridge approaches through robust retaining wall solutions, requiring expertise in both geotechnical and structural aspects of construction.

MASSDOT

POSTED

in 10 days

DEADLINE

in 10 days

AI Contract Overview

The contract entails an extensive annual service for the maintenance and upkeep of a koi pond, focusing on a comprehensive deep cleaning and system overhaul. Key tasks include full drainage of the pond, removal of accumulated sludge, thorough inspection and servicing of essential mechanical components such as pumps and filters, and a structural examination of the pond lining to ensure integrity. The scope also involves complete sanitization of the system to maintain a healthy environment for the aquatic life. Issued by the County of Riverside, California, this subcontract is categorized under NAICS code 238990, which pertains to specialized construction activities. The solicitation was posted on May 13, 2026, with a response deadline set for June 4, 2026. While specific location details and points of contact are not provided, interested parties can access more information through the designated public procurement website. This contract aims to ensure the optimal functioning and longevity of the koi pond through meticulous annual maintenance and servicing.

General Info

Annual koi pond maintenance including deep cleaning, mechanical servicing, structural inspection, and sanitization.

Agency

California → County of RiversideView Agency

NAICS

238990 - All Other Specialty Trade ContractorsView NAICS

Place of Performance

CA, USA

Set-Aside

NONE

Documents

(0)

No documents available

AI Contract Breakdown

Uniform Contract Format

No contract breakdown available.

Cannot generate Contract Breakdown because no documents were found from this contract's source.

Timeline

PhaseClosed

PostedMay 13

subcontract

Response DeadlineJun 4

Deadline has passed

Submission Closed

06/04/2026, 08:30:00 PM UTC

Find active opportunities like this

Start your free trial to discover similar active contracts, track opportunities, and build proposals with AI assistance.

Organization & Contact Information

AgencyCalifornia → County of Riverside

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → County of Riverside

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Comprehensive annual cleaning including full drainage, sludge removal, inspection and servicing of pumps/filters, structural inspection of pond lining, and system sanitization.