Working for the South Carolina Port Authority, S.J. Hamill Construction Co. cleared and ditched the existing 220 acre DMCA before raising the perimeter dike structure an average of 10′ to accommodate a new fill limit of El. 14.50. Work consisted of mining, transporting, and placing over 100,000 CY of material from within the DMCA as well as demolishing and reconstructing 3 spillway risers with piping and timber walkway access.
The SCSPA contracted SJ Hamill to construct four pile supported foundations for the Wando-Welch Terminals new ship-to-shore cranes commissioning. Work consisted of removal of existing concrete pavement, structural excavation, and installation of 120 HP14x73 pile. Four reinforced concrete foundations with crane tie down assemblies were installed to support SCSPA’s new cranes during erection. SJ Hamill self performed over 95% of the contract work while coordinating with SCSPA to complete the project within an active Port facility.
The High Battery Stone Revetment Repair Project was an erosion control repair work project and consisted of the installation of approximately 8,000 tons of stone and 7400SY of geotextile fabric at the existing seawall and extending 40ft into Charleston Harbor. The repair work extended 1375ft along the Battery and was performed by barge. All work was tidal and involved close attention to tidal cycles. S.J. Hamill’s stone was produced in a quarry in Kershaw, SC and then transported by over-the-road trucks to S.J. Hamill’s yard in Charleston, SC where the material was staged prior to being loaded and transported by material barge to the High Battery location. In order to speed production, S.J. Hamill innovated a geotextile jig for faster and easier fabric placement.
Vulcan Materials Company contracted SJ Hamill to construct pile supported foundations for their Cooper River Terminal’s new aggregate ship-to-shore conveyor system and truck scales. Work consisted of excavating, dewatering, shoring, driving piles, tying reinforcing and forming/placing concrete for 24 individual foundations ranging is size from 5CY to 140CY. The pile caps are supported on 5,918 LF of 14″ and 18″ Square PSC pile. SJ Hamill self performed over 98% of the contract work while coordinating with Vulcan to complete the project within an active marine terminal facility and expedited construction schedule.
The Jekyll Island Revetment Rehabilitation Project consists of reworking and rebuilding approximately 9,800 linear feet of the beach’s existing revetment on the north-eastern side of the island. The original revetment structure was constructed in the 1960s-70s and suffered significant damage during Hurricane Matthew and Irma in 2016 and 2017. S.J. Hamill is responsible furnishing and delivering approximately 46,000 tons of new armor stone to re-build the revetment back to the crest elevations and slopes of the original design template. S.J. Hamill’s stone is produced in a quarry in Sparta, GA, the stone is railed into Brunswick, GA where it is then transloaded in over-the-road dump trucks and delivered to Jekyll Island Beach. SJH is also responsible for re-setting existing scattered stone prior to placing new stone, managing daily rail and over-the-road trucking logistics, environmental protection and monitoring, vibration monitoring, and pedestrian access and safety.
The project objective was to rework and rebuild 2,400 linear feet of the FIPSD’s existing stone revetment on the north end of Fripp Island. This work was in response to shoreline damage suffered by Hurricane Matthew in 2016 and consisted of placing approximately 6,000 tons of new armor stone along the revetment in the tidal zone. SJH was responsible for reworking the existing revetment and re-setting scattered stone prior to placing new stone, removing and replacing approximately 2,000 square yards of filter fabric beneath the structure, cleaning up and reworking roughly 1,000 cubic yards of sand, and general site work including grading, debris removal and traffic control. Because of strict load limitations on the bridges leading up to Fripp Island, SJH had to establish a stone stockpile yard on St. Helena (approximately 10 miles from the project site) then re-handle the stone into partially loaded dump trucks in order to get over the bridges safely. In an effort to expedite the schedule for the FIPSD, SJH dual sourced the stone materials from two granite quarries in South Carolina and doubled their trucking throughput. SJH was given 120 days to complete the project but finished in half the time with 60 days of schedule float.
SJ Hamill worked as a Subcontractor to RailWorks Track Systems for replacement of this 150 feet long by 20 feet wide Union Pacific high-speed railroad bridge. SJ Hamill’s scope of work required replacing this bridge in a 24-hour window so as to not interrupt the train’s daily operations. In order to do this, the new bridge’s substructure was built beneath the active existing bridge. SJ Hamill spliced and drove 18 each 80 foot long H-pilings through the deck of the existing bridge, fitted and welded X-bracing members to the pilings and set six precast pile caps beneath the existing bridge girders. Within 24 hours SJH had to demolish the existing bridge and install a 3,000 square foot precast box beam/ deck unit system and tie 150 feet of new rail line into the existing line. Other work included installing and removing 800 tons of a stone access road/ crane working pad through the existing adjacent swamp, installation of 100 tons of rip rap, installation of precast abutments and wing walls, installation of 300 feet of walkways and handrails, and general site work and erosion controls. SJ Hamill successfully completed this project safely and under the six-week timeframe required by the client.
Installation of approximately 3.7 Million Metric Tons of stone, construction of a temporary ship berth, installation of pile supported 54 inch outfall, dredge approximately 1 million CY from the turning basin and reclaimed approximately 820 thousand CY of dredged sand backfill. SJ Hamill/Banks, JV – performed this contract as prime contractor with the SCSPA where S J Hamill was the managing partner for the JV. Working as a fully integrated team, the JV worked closely with the SCSPA managers and engineers to develop an Alternate Construction Concept (ACC) which took advantage of the favorable economic conditions at the time to import processed crushed stone materials via ship from Canada and to utilize existing sand deposits within the permitted turning basin directly adjacent to the new terminal. The stone materials are reusable on the project site for the Hugh Leatherman Site Development Phase 1 Project, which will ultimately save additional costs and time for the follow on Hugh Leatherman Terminal Site Development Phase 1 Project.
Installation of 24 million vertical feet of Wick Drains, 160,000 lineal feet of horizontal drains, 800,000 cy of excavation and backfill, 100,000 tons of concrete demolition processing, 600,000 cy of dredging, geotechnical instrumentation and site clearing. SJ Hamill/United, JV – performed this contract as prime contractor under the existing Wall Remediation Contract with the SCSPA where SJ Hamill was the managing partner for the JV. Working as a fully integrated team, the JV worked closely with the SCSPA managers and engineers to create and implement cost and schedule saving alternative which paved the way for the seamless transition into the
follow‐on contract for the terminal.
Installation of 550 driven H-Piles on 4:1 batters for raker braced support for cofferdam wall in Cooper River. Installation of 5,000 auger-cast piles, 4,800 linear feet of sheet pile cut-off walls, 9,800 linear feet of pile caps and 20,000 square yards of 15 inch thick CIP concrete relieving platform slab built over existing containment dike out in the Cooper River. Work also included construction of utility trenches for future wharf structure, and installation of approximately 70 tide flex drain structures in the tidal zone. SJH/UIG – performed this contract as prime contractor with the SCSPA where SJ Hamill was the managing partner and lead for the JV. Working as a fully integrated team, the JV worked closely with the SCSPA managers and engineers to create and implement cost and schedule saving measures which paved the way for seamless transition into the follow-on contract for the terminal.
S.J. Hamill worked as a Subcontractor to United Infrastructure Group on their Jarvis Creek Bridge Project. S.J. Hamill’s work included installation of 13 each 45′ CIP concrete pile cap bents under a 20,640 SF x 21″ thick CIP bridge deck. SJH crews installed and removed cap formwork and slab deck falsework, tied rebar and prepared, poured and finished the slab deck superstructure.
S.J. Hamill was contracted by Clemson University to demolish roughly 24,000 sf. (4,500 tons) of their collapsed wharf structure. S.J. Hamill’s work included saw-cutting and breaking the deck via excavators with hoe‐rams. Pile cap and deck debris removal were completed via water with crane barge and material handling barge. The material was towed to S.J. Hamill’s marine yard for processing and disposal.
SJ Hamill worked as a Subcontractor to Jay Dee Contractors installing four of their tunnel boring machine access shafts. SJ Hamill’s work included installation of approximately 20,000 SF of sheet pile circular cofferdams, installing and removing falsework, welding ring beam ribs, shaft excavation via clamshell and shaft grouting.
S.J. Hamill has performed a test pile program where a select amount of piles were driven from a barge in the Cooper River inside the footprint of the Port’s future wharf structure. The test piles consisted of 24″ and 30″ pre-stressed square concrete piles ranging in length from 69-feet to 81-feet, each cast with a 40-foot H-pile stinger. The work included building and removing template frames, axial load testing on each pile, restriking piles, static lateral load testing on half of the piles after installation, removal, and replacement of armor stone at each pile location, along with video recording/documentation of the entire operation. S.J. Hamill worked together with the SCSPA managers and engineers to collect the results of the pile installation and load tests needed to evaluate drivability and to refine the design of the future wharf structure piles.
SJ Hamill worked as a Subcontractor to United Infrastructure Group on their Glenn’s Bay Road Bridge Project. SJ Hamill’s work included installation of 70 each 18″ diameter pipe piling (60 ft. to 80 ft. long) and formwork, rebar and concrete for 120 ft. of pile supported bent caps.
SJ Hamill crews installing the umbrella bar for Indian River Inlet Pavilion.