La Quinta Channel Extension Port of Corpus Christi Ingleside, Texas Mark Coyle
Corpus Christi Navigation Channel
PCCA La Quinta Expansion
Project History Corpus Christi Ship Channel Improvement Projects (CCSC Projects) La Quinta Channel Extension History Congressional Authorized 1968 Initial study by congressional resolution 1990 Feasibility Reports & EIS approved in 2004 Authorized by WRDA 2007.
Project History La Quinta Channel Extension History In 2009 Initial funding of $1,148,000 Project Partnership Agreement (PPA) with USACE & PCCA ARRA stimulus funds appropriated in 2011 Contact award LaQuinta Contract Award Ecosystem Restoration Channel improvement evaluations completed in 2012
Project Development La Quinta Channel Extension Development EIS Study Engineering & design Geotechnical investigation Surveys Federal Permitting Funded by USACE & PCCA
Project Overview La Quinta Channel Extension and Ecosystem restoration Includes: 7,300 L/ft. Channel Extension Beneficial Use Site DMPA #6 (BU) Ecosystem at Ingleside by the bay Vegetation Buffer & Wildlife Habitat DMPA #14
Project Overview La Quinta Channel Extension Project Includes : 7300 L/ft. x 400 wide channel x 41 depth Base Project 1400 x 1300 turning basin (41' plus 2' allowable over-depth) 6.6 million cubic yards of dredging 2 nd Contract deepening to 45 depth (45' plus 2' allowable over-depth & 2' advanced maintenance ) 1.1 million cubic yards of dredging
Project Overview La Quinta Channel Extension Provides: Deep water access to over 1000 + acres of PCCA property Access to 3800 linear foot multi-purpose ship dock -supported by rail, highway, & barges Access to Intermodal terminal
PCCA - CCSC Projects Disposal Sites Utilized (DMPA) BU site #6 DMPA #13 DMPA #14
PCCA - CCSC Projects BU site #6 Approximate 9,200 foot long Made From dredging soils Made up of 6 cells Main levee @ +9 Near-Shore Levee -1 192 Acres 83,000 Tons Armor Stone Protection Shallow water habitat Protection from prevailing winds
DMPA # 13 DMPA #13 USACE & PCCA DMPA
DMPA #14 DMPA #14 Uplands PCCA site Buffer Barrier from Subdivision Wildlife Habitat Used for additional projects
Ingleside By the Bay BU Site Ingleside by the Bay BU Site 2200 L/ft. offshore rock breakwater 1050 L/ft. shoreline protection Protection of 45 acres of sea grass habitat.
PCCA - CCSC Projects CCSC Completed Projects: Extend La Quinta Ship Channel approximately 1.4 miles at 39' MLT. COMPLETED 2013 - $33M Deepen extension to -45 MLT to match La Quinta Ship Channel. COMPLETED 2014 - $6.6m Construction of ecosystem restoration, wetlands, and seagrass. COMPLETED 2012 - $8.5M
PCCA - CCSC Projects Pending Projects: Widening the CCSC to 530' from Port Aransas to the Harbor Bridge. PENDING Deepening the CCSC from -45' MLT to 52' MLT. PENDING Adding 200' wide Barge Shelves at 12' MLT across Corpus Christi Bay. PENDING
La Quinta Projects La Quinta Projects: PCCA Intermodal terminal La Quinta Container Terminal Multi-Purpose Dock Facility Private Industry Voestalpine Texas, LLC Corpus Christi LNG TPCO America steel pipe mill
PCCA La Quinta Expansion
PCCA La Quinta Expansion BU Site Levee System Offshore Levee +9 Near-Shore Levee -1 Hydraulic Fill between Levee systems
PCCA La Quinta Expansion Base Project Depth Existing Channel 47 + 2 MLT La Quinta Channel extension depth 41 + 2 MLT 6.6 million CY Additional Contract 47 +2 1.1 million CY
Project Equipment 24 Hydraulic Dredges (3): Richard Laquay, Linda Laquay, and John C. Laquay In a individual and at times combined effort, each dredge was dispatched to facilitate the required work; 6.6 million CY Support Equipment: Dredge Tenders, Track-hoes, Bulldozers, Spud Barges, Draglines, Off-road haul trucks
Project Equipment Hydraulic Fill Barges: Shamrock & Barge #24 (Built in house) Through the support of Orion dredging personnel and base of operations located in Port Lavaca Texas, two Spill barges were constructed. One; the Shamrock, was a converted 18 dredge. Both were a key components throughout the project. Once the material was placed along required fill templates, conventional equipment was utilized to construct and shape the shallow water habitat; (BUS) No. 6
Offshore Emergent Levee First Pass The Dredge Richard Laquay & Fill Barge Shamrock placing the first pass of material along the footprint of the Offshore Levee
Offshore Emergent Levee First Pass Initially, a defuser was used for the first pass, but through surveys and field investigations, the defuser was replaced with a 90 degree elbow.
Offshore Emergent Levee First Pass 90 degree replaced our initial diffuser to complete the first pass. This facilitated a more precise fill through 10 fsw.
Offshore Emergent Levee Second Pass Once the first pass was completed, the second and final pass on the emergent levee was made; approximately two feet above design elevation to facilitate the shaping and grading requirements and shoreline protection.
Offshore Emergent Levee Second Pass This photo of the fill material was taken a few hours after it was placed. Although the material dredged work extremely well for the project, it progressively became more difficult for our dredges to cut.
Offshore Emergent Levee Second Pass As a result, the Richard Laquay was replaced with the Linda Laquay. Eventually, the John C Laquay would be mobilized to aid in the dredging efforts. cutter motor horse power on both the Linda and the John Laquay were increased
Offshore Emergent Levee Second Pass Raising the second pass levee offshore levee system.
Shoreline Protection The southeasterly winds proved to be challenging during the rock placement activity which was an important milestone for the success of the project.
Shoreline Protection Through the combined efforts of personnel and equipment from both Orion and Luhr Bros, the shoreline protection activity was successfully completed.
Shoreline Protection Due to erosion, most of the shoreline was mechanically rebuilt in compacted lifts ahead of the shoreline protection activity.
Shoreline Protection Orion track-hoes utilized for the rip rap subgrade were outfitted with GPS units that allowed the operator to cut the subgrade within tolerances.
Shoreline Protection Levee Shaping Geotextile Fabric placement Stone placement
Shoreline Protection Luhr Bros, INC partnered with Orion to place 83,000 Tons of rip rap to protect 9,250 feet of the emergent levee slope.
Shoreline Protection Orion near to completion of offshore levee system.
Near shore Submerged Levee Nearing the completion of the shoreline protection activity, Orion commenced the construction of the Near shore submerged levee.
Near shore Submerged Levee Totaling a length of over 7,500 feet, the near shore submerged levee served as a retaining levee during the fill operation within BUS Site 6.
Habitat Creation Hydraulic Fill Orion monitored the fill material distributed in Bus Site 6 on a 24 hour basis. Survey checks were performed daily in order to insure compliance with fill elevation requirements.
Habitat Creation Hydraulic Fill Utilizing the Linda Laquay, John C Laquay, Fill Barge 21, and the Shamrock, Orion distributed over 3,000,000 Cy of material within the BU site.
Habitat Creation Hydraulic Fill Elevations were curtail in order for the Bus site to sustain native plant and aquatic life.
Placement Areas 13 & 14 Upon completion of the their respective fill assignments, both dredges; the Linda & John Laquay discontinued the use of their spill barges. The dredge material remaining in the channel would be distributed in PA 13 & 14.
Native Prairie Hay Mulch As part of the contract requirements, 8.8 tons of rice hay per acre was applied to the finished levee template.
PCCA La Quinta Expansion Completed Laquinta Completed. Notice the outline of the new channel and turning basin.
PCCA La Quinta Expansion Questions? Thank You