FY20 GIWW Rollover to Causeway Maintenance Dredging - Pipeline Dredging

USACE Galveston District, FY20 GIWW Rollover to Causeway Maintenance Dredging Galveston and Chambers Counties, Texas, Pipeline Dredging: Schedule 1 - Maintenance dredging of seventeen sections varying locations between station 166+000 and 321+000 totaling approximately 980,000 CY. Of the total, approximately 400,000 CY is in the sections covering the Bolivar Flare. Placement areas are primarily upland confined (PAs 35, 36, 42), semi confined (PA 43), and potential beach placement of 160,000 CY at Rollover Pass. - Option 1 - Galveston Alternate Route. Maintenance dredging of approximately 300,000 CY with open water placement at PA 50. An additional 35 calendar days will be added to contract duration if awarded. - Option 2 - Offats Bayou Main Channel w/ East Wye and West Wye. Maintenance dredging of approximately 100,000 CY with open water placement at PA 53. An additional 20 calendar days will be added to contract duration if awarded. - Option 3 - North Ferry Channel (Bolivar Ferry Channel) Maintenance dredging of approximately 210,000 CY with open water placement at PA 43. An additional 35 calendar days will be added to contract duration if awarded. - Option 4 - Beneficial use beach placement of approximately 100,000 CY vicinity of Rollover Pass in lieu of upland placement at Placement areas 35 and 36. An additional 15 calendar days will be added to contract duration if awarded. - Option 5 - Pierce Marsh Restoration Cell 1 - Maintenance dredging of approximately 130,000 CY from GIWW station 385+000 to station 398+000. Material to be placed at Pierce Marsh Cell 1 for marsh restoration. Option includes raising approximately 7,500 ft of existing perimeter containment berms. An additional 55 calendar days will be added to contract duration if awarded. - Option 6 - Pierce Marsh Restoration Cell 2 - Maintenance dredging of approximately 80,000 CY from GIWW station 370+400 to station 374+400 and 398+000 to 402+000. Material to be placed at Pierce Marsh Cell 2 for marsh restoration. Option includes raising approximately 2,500 ft of existing perimeter containment berms. An additional 30 calendar days will be added to contract duration if awarded. Contractor shall demonstrate experience as a prime contractor dredging Federal navigation channels and the ability to produce upwards of 15,000 CY/day with their pipeline dredge equipment. Contractor should be familiar with working in and around dredge material placement areas due to the soft consistency of the soil and the requirements to maintain the sites during dredging operations. Contractor should demonstrate experience dredging areas with moderate to heavy barge and ship traffic due to the coordination efforts which must take place with the industries along the Intracoastal Waterway.

Division 35 -

Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Dredging.