There are more than 20 million miles of underground utilities in the U.S. Those are enough buried lines and pipes to equal a football field for every American man, woman and child. Every 6 minutes, one of those buried lines or pipes is damaged because someone was excavating without knowing the utility line was there. If you need to find utility lines under your private business, church, school property, or facility, and want to avoid catastrophic mistakes, you need to know where the utility … [Read more...]
Case Study: GPR for Archaeological Study Prior to Hospital Expansion
When North Springs Behavioral Hospital in Leesburg, VA wanted to expand its facilities, they needed a special exception permit from the Loudoun County Planning Department. The core of the hospital is an old country manor built around 1845 by George Washington Ball, and the surrounding 5 acre parcel of land includes the Ball Family Burial Ground and other possible areas of historical significance. Historical information, old maps and a historical marker placed on the property about 100 years ago … [Read more...]
Ground Penetrating Radar Survey Locates Source of Surface Water Ponding in Rail Yard
A rail services yard in Texas was losing thousands of gallons of water. Water ponding on the surface of the ground indicated serious leaks in the buried metal water pipes below, but officials at the site had no idea where all of the leaks were located. To find out, the rail services yard needed an in-depth survey -- and looked for a survey company that could work around issues such as the Texas clay soil and railroad tracks that could interfere with traditional metal detection readings. They … [Read more...]
Case Study: Preserving African-American Heritage with Ground Penetrating Radar
The staff and directors of Avoca Museum knew that there were former African-American slaves and at least one native American buried on the museum grounds, but they were lacking critical information. Discovered in 2005, the cemetery presented three major challenges, says Avoca Museum Director Michael Hudson. “Many local families strongly believe they have ancestors buried here. Unfortunately, because the records of these burials are either non-existent or have been lost, we were not sure … [Read more...]
Dallas-Fort Worth Airport , Dallas Texas
Recently, GeoModel, Inc. conducted an underground utility survey at the Dallas-Fort Worth Airport in Texas. The survey area was west of the westernmost runway and between and at the end of two runways, and was 6470 feet long and included five (5) Navaid Shelter areas. GeoModel, Inc. used ground penetrating radar (GPR), metal detection, and multi-frequency locators to detect underground utilities. The locations of the buried utilities were marked on the ground with paint and surveyor’s … [Read more...]
Cemeteries in Cleveland, Texas
In late October and early November, 2014, GeoModel, Inc. conducted a ground penetrating radar (GPR) survey to locate gravesites in two (2) cemeteries in Cleveland, Texas. Only a few older sections of one of the cemeteries were surveyed; whereas, the entire area of the other, 4-acre cemetery was surveyed with GPR. In the 4-acre cemetery, there were many missing headstones. GeoModel, Inc. found large areas where numerous gravesites had no headstones or any markings indicating that gravesites … [Read more...]
Trans-Alaska Pipeline, Alaska
Ground Penetrating Radar Survey GeoModel, Inc. obtained ground penetrating radar images across several areas of the buried portion of the Trans-Alaska pipeline. During the past several years, GeoModel, Inc. has conducted ground penetrating radar and other geophysical surveys at several Alyeska Pipeline Pump Stations. Additional Images Click on an image for a larger view. … [Read more...]