Midwestern Consulting

Data point cloud from the UT project

(Norcross, GA, 13 July 2010) The iconic Founders Hall at the University of Texas at Dallas is undergoing a speedy HVAC renovation and upgrade thanks in part to Midwestern Consulting, an engineering and surveying consulting firm, and its use high definition laser scanning technology.

Founders Hall was the first permanent structure built at the University soon after it was established in 1969. In 2009, the University initiated a $27.8 million renovation of the structure to improve energy efficiency and update classrooms, laboratories and meeting rooms in all three structures while adding modern amenities.

A key part of the efficiency improvements was to upgrade the complex’s existing 35,000-sq-ft HVAC piping and equipment located in the basement of the original Founders Hall Building C.

Using a Leica HDS 6000 from Leica Geosystems, Midwestern surveyors scanned the basement over the course of a week, collecting nearly 5.5 billion points of information. Then, with help from Ceeko, Inc., a data capture, processing and visualization firm, created a color-coding 3D model.

Brandon Walker, senior project manager with Midwestern Consulting, says, “With the 3D model, the architect and contractor were able to digitally compare the HVAC renovations with existing conditions and avoid potential clashes. We estimate that laser scanning saved at least three major conflicts, at an estimated $15,000 per conflict, on the project and three weeks time.

The Founders Hall renovation project is on schedule for completion in fall 2010.

3D building data collected for a previous project generated accurate elevation drawings for a new project and saved the client time and money.  Scanning data collected during an initial project can be re-visited to create continued value for the client.

In the spring of 2008, Midwestern Consulting was hired by the historic preservation team of JJR, LLC/HopkinsBurns Design Studio to scan the historic buildings of Fishtown, an active commercial fishing port in Leland, Michigan on the shore of Lake Michigan.  Fishtown is also a popular summer destination for vacationers to the area. 

The 2008 project was to scan the Fishtown buildings and generate a topographic survey of the site and wire-frame drawings of the buildings for the architectural team.  The image below shows the wire-frame drawings on top of the point cloud.  The Fishtown Preservation Society and the architects used the drawings to establish building locations and dimensions.

In February 2010, the Fishtown Preservation Society was awarded funding through the National Trust for Historic Preservation from the Jeffris Heartland Fund to finance a Historic Structure Report for the Fishtown buildings and related structures along the Leland River.  As part of the project, Midwestern Consulting was again hired to generate new drawings of each building including additional dimensions, detailed elevations, geometric locations, and other fine details.  The drawing below shows the north elevation of the Manitou Outfitters building in significant detail.

These tasks were easily accomplished since we already had the data.
Without the initial scan data, we would have had to travel to the site again and do more measurements.  That means more time and money spent on the project.  With the data in hand, Midwestern was able to give the historic preservation team additional accurate details of Fishtown at a fraction of the cost needed to get the new measurements.

Surveying underground utilities is complex and very challenging for the surveyor.  The owner can help speed up the survey process by sharing his knowledge of site utility details.

Most proposed developments require an existing conditions survey.  One of the most important items the civil engineer will need to prepare is a constructible set of plans for the location of underground utilities like sanitary sewer, storm sewer and water main.  Public utilities such as gas, electric, fiber optic, telephone and cable are also critical to a successful survey.  Most of these utilities are placed on the existing conditions survey by the surveyor. 

The surveyor will use above ground evidence such as manholes, gate valves, hydrants, cleanouts and MISS DIG flags located in the field survey to plot the location of the utilities.  Utility records obtained from municipalities and public utility companies are also utilized and compared to the field evidence to develop an accurate location for each utility line.  But sometimes physical evidence is not enough.

Many surveyors do not review the finished survey with the property owner of the proposed site.  This is a mistake.  The property owner can be an invaluable source for the surveyor because most property owners are intimately familiar with the locations of utilities on their property.   

Surveyors should always include a review of the existing conditions survey with the property owner prior starting their design.  Such a meeting will provide the surveyor with site details that may not show up on official records and help make the site survey process go more smoothly and efficiently.