ASC geosciences was retained to provide field exploration and testing services for design of the proposed Southwest Quadrant-Phase I Development Program project located at Savannah/Hilton Head International Airport.  ASC performed ten (10) pavement cores and eighty (80) borings located in Test Area A within the Southwest Quadrant. 

ASC was responsible for performing Geotechnical Exploration Services. The complex included construction of a main terminal building as well as parallel taxiway system to an existing runway. The initial phase of geotechnical exploration, termed Phase I, included a feasibility level siting design. 

Additionally, due to a history of problematic limestone/karst solutioning, ASC performed ground penetrating radar (GPR) survey to better define anomalies such as topographic lows, depressions, and discontinuities in the limestone caprock underlying much of the project site.  Additional assessment included delineation of any breached caprock areas utilizing GPR, resistivity, seismic reflection, and downhole seismic testing.

ASC provided Quality Assurance Testing Services related to soils , concrete, and asphalt materials through its on-site testing facility at the Midfield Terminal Complex.

ASC also provided Threshold Inspection Services during the construction of a new 798,000 sq ft terminal building, a new 3-story parking garage structure (expandable to 5 stories) and an elevated roadway to separate automobile traffic into arriving and departing flight sections. 

All required fill material was generated on-site from a combination wet and dry storm water retention pond system.

ASC performed all the QC testing necessary for soils and concrete materials to be used at the high-speed taxiway and the run-up pad.

The project consists of the reconstruction of Taxiway W-1 and portion of Taxiway W for use as a run-up pad and reconstruction of Taxiway W-5 for use as a high-speed taxiway.  Major work elements include Portland Cement Concrete, Bituminous, and Composite Pavement Demolition (approximately 37,000 sy), construction of a new Portland Cement Concrete Pavement (approximately 38,000 sy) and Bituminous Pavement (approximately 10,000 sy), 500 ft. of new airfield roadway, pavement underdrain systems, storm drain systems, concrete grooving, pavement marking, turfing, and related work.

The project consisted of 4 buildings including 3 hangar structures and a terminal office/canopy structure.  The 3 hangar structures range in overall size from 26,950 sq ft to 28,950 sq ft.  Other appurtenant construction elements of the overall project included landside construction (i.e., a paved parking area south of the proposed buildings as well as water management ponds) as well as airside construction (i.e., taxiway areas north of the proposed buildings).

ASC geosciences provided Geotechnical  Design Support for the project for the development of approximately ten acres of property to accommodate a new Fixed Based Operator (FBO) and included expanding the existing Aircraft Apron (P-401) and relocate the Helipad.  In addition, the project involved the relocation of security control gate P-3, associated fencing, and the relocation of two 60” RCP drainage culverts. A new parking lot for the FBO facility will be constructed fronting on Columbus Drive.

During construction, which began in September 2003, ASC provided Quality Assurance Testing Services for all soil, concrete, and asphalt materials.

ASC geosciences, inc. provided quality control testing services for the contractor on this unique project involving pressure-grouting of a sinkhole.  ASC prepared a Quality Control Plan and performed various field sampling and testing procedures to ensure compliance with project specifications.

ASC geosciences provided geotechnical design support for Runway 11R-29L as well as Taxiway A and Taxiway B. ASC performed total of 51 borings, 49 pavement cores, and 6 California Bearing Ratio (CBR) tests. 

A Pavement Condition Survey (PCS) was performed in 1998 on Runway 11R-29L and the Pavement Condition Index (PCI) was measured at a level of 73, however it is currently estimated that the PCI in 2003 is at a level of 64 which, in accordance with the FDOT minimum acceptable service levels for larger than utility runways, indicates it is in need of repair.  The runway will also be grooved to provide for acceptable skid resistance during  wet runway conditions.