• Marquette Interchange - Milwaukee, WI; Hollow-stem auger and mud rotary drilling for geotechnical exploration for HNTB Corporation.  Multiple drilling rigs on site to perform soil borings for the North Leg, West Leg, and Core sections of the project.  Soil borings performed up to 200 feet deep.  Coordination required with Milwaukee County Highway Department for traffic control.
  • MMSD Harbor Siphons - Milwaukee, WI; Mud rotary drilling and hollow-stem auger methods used for geotechnical exploration.  Bedrock was cored to depths of 300 feet.  Field work included packer testing of the bedrock during the coring.  Piezometers were installed in the boreholes for slug testing and long-term water level readings to calculate groundwater permeability rates in the bedrock.
  • Oak Street - Oshkosh, WI;  Geotechnical exploration and report for proposed bridge replacement.  Coring of bedrock performed from existing bridge deck at the 26 soil boring locations.
  • West Campus Cogeneration Facility - Madison, WI;  Geotechnical and environmental drilling and sampling for new chilled water and steam facility serving UW-Madison campus.  Installed monitoring wells into bedrock and performed slug testing of the wells for groundwater permeability rate calculations.
  • K. I. Sawyer Air Force Base - Gwynn, MI;  Hollow-stem auger drilling to install monitoring wells and gas probes.  We also used the HydroPunch system to collect water samples at successive depths within the same borehole.
  • Former Fuel Depot - Escanaba, MI;  Hollow-stem auger drilling to install monitoring wells and multiple point sampling tubes.
  • Hartmeyer Ice Arena - Madison, WI;  Geotechnical exploration and report for a proposed replacement ice rink.  The field work required use of split-barrel sampler only due to presence of chiller pipes in the floor.  The purpose of sampling was to determine the depth of frozen soils in addition to the soil types and depth to groundwater.  The sampling was completed with our split-tower CME 550X inside of the existing building.
  • IC&E Railroad Bridges, Iowa;  Drilling and sampling next to existing railroad tracks for replacement railroad bridges that were damaged due to a derailment.  The field work required the use of a rubber tire ATV drilling rig.
  • Epic Systems Group; Verona, WI;  Drilling and sampling of soils and bedrock for a medical software development company campus.  Structures include a 4-level, below-grade parking ramp; a 5,200-seat auditorium; and a 300,000 square-foot training center.  We are continuing to provide geotechnical engineering analysis for the variable site conditions and high building loads.  Site foundations used include spread footings, drilled pilings, and micropiles.
  • Dane County Regional Airport;  Drilling and sampling in 2009 included 83 soil borings for Taxiway A reconstruction, 21 soil borings for Taxiway B construction, and 15 soil borings for South Hangar Area.  The laboratory testing program included seven soiil samples for modified Proctor curves and 3-point CBR curves.
  • General Mitchell International Airport;  In 2008 and 2009, we worked on the Runway Safety Area Improvements projects including relocation of South 6th Street, College Avenue tunnel, and new airport service roads.  The drilling and sampling program included soil borings for geotechnical and environmental purposes.  We are preparing geotechnical engineering reports for the new 4-lane tunnel and retaining walls, a temporary bypass road, and relocation of South 6th Street.  Slope stability analyses are being completed for the tunnel's retaining walls.
  • CTH A - Lake Delton Restoration:  Provided field and laboratory testing of 115,000 cubic yards of fill material for rebuilding the embankment for the section of CTH A that washed out due to heavy rains.  Testing consisted of density with a nuclear density gauge and slurry testing of the cut off wall constructed into the embankment.  One of the "2008 Top Projects" from Wisconsin Builder magazine.
  • Maple-Oregon Bridge, Sturgeon Bay;  Performed geotechnical exploration and report for new bridge.  Original exploration was performed for replacing the Michigan Street bridge, however an entirely new bridge location was selected requiring additional exploration and analysis.  Soil borings were performed from a barge, and included rotary drilling with coring of the bedrock.  One of the "2008 Top Projects" from Wisconsin Builder magazine.

Airports

If you have an airport project, we have the soil and base course sampling, laboratory testing, and geotechnical engineering experience for you.  In 2009, we completed geotechnical explorations and reports for two runways and a hangar area for Dane County Regional Airport, for the Safety Area Improvement Study projects at General Mitchell International Airport, for the Runway Intersection Study at General Mitchell International Airport, for a runway reconstruction at Wittman Regional Airport, for a runway reconstruction at Burlington Municipal Airport, for taxiway reconstruction at Rhinelander/Oneida County Airport, for apron reconstruction at Southern Wisconsin Regional Airport, and for the runway reconstruction at Capitol Airport.   Also in 2009, we provided construction materials testing for the project engineers at Sheboygan County Memorial Airport, Dane County Regional Airport, Southern Wisconsin Regional Airport, Rhinelander/Oneida County Airport, and Austin Straubel International Airport.

So far in 2010, we have completed soil borings at Cable Union Airport, John F. Kennedy Memorial Airport, Langlade County Airport, Dane County Regional Airport, Merrill Municipal Airport, and three project areas at Outagamie County Regional Airport.