Furnish and Deploy Cultch Material into the Western and Central Mississippi Sound .

2026-11-03

Specifications include , but are not limited to : The Contractor will be responsible for furnishing and deploying cultch material by barge to the Western and Central Mississippi Sound . Bids should include the unit price per cubic yard of cultch material , total cubic yards of cultch material and overall price ( unit price per cubic yard multiplied by total cubic yards ) which will include deployment . The scope of work for the contract will include , but is not limited to , the following : • The Contractor will plant cultch in specified areas which will be designated by MDMR personnel in advance of the day of the cultch deployment . The contractor will give the MDMR Project Manager at least twenty - four ( 24 ) hours ’ notice of cultch deployment . • Types of approved cultch material are course aggregate (# 4 stone ) or oyster shell . • Cultch will be clean and free of any hazardous substances or excessive dust . • Bidders proposing any non - domestic or non - traditional cultch material must include a marked 5 - gallon representative sample of the cultch material at the time of the bid submittal . This sample will be used to determine the cultch material ’ s suitability for the project purpose . • The Contractor will guarantee that all cultch is clean and no more than 5 % of the cultch material , by volume , may consist of fragments , pieces , fines , or shells smaller than ¾ ” to 1 ½ ” ( three - fourths inch to one and one - half inch ) in diameter . For cultch material other than shell , the size should be in accordance with the American Society for Testing and Materials (“ ASTM ”) C33 specifications , size # 4 stone or equivalent , with no more than 5 % by volume of the cultch material out of the ASTM size # 4 stone specification . The MDMR reserves the right to have its representatives inspect all cultch material at the loading site before cultch material is accepted and each barge - load will be monitored at the deployment site . All small particles in excess of the allowed 5 %, or otherwise outside of the specifications listed above , will be deducted from the total project cost . • Cultch material will be transported to deployment areas on deck barges that are loaded to conform to the depth of the water at the deployment site . Tugboats and barges ( loaded ) will not draw more than five ( 5 ) feet of water . The deployment will be performed utilizing a grid pattern to accomplish a uniform distribution of the cultch material . To ensure proper maneuverability , the tugboat used to distribute the cultch material will not push or pull more than two ( 2 ) loaded barges at one time during deployment . MDMR employees will be onsite to monitor compliance with the terms of the contract . This will include , among other aspects , the even distribution of cultch material during the deployment at locations specified by the MDMR . The Contractor understands that this project consists of multiple deployment sites and irregular shapes totaling 150 to 200 acres . Deployment will be at 100 cubic yards per acre . • The Contractor is responsible for ensuring that the minimal clearances are met .

Mississippi

2026-04-29