<p><p><h2>Commentary</h2>The costs of Vibro-Concrete Columns (VCCs) on a highway project are typically captured in a contract bid item which is measured by the lineal foot (LF). Included in this bid item are the material, equipment, labor, and incidentals to construct a VCC. Mobilization, pre‑drilling, load testing, and construction of a working platform associated with the installation of VCCs may be measured and paid for separately.<br><h2>Cost Information Summary</h2>The following table lists construction cost items that are associated with VCCs along with approximate cost ranges. Cost ranges are estimated. Readers should carefully examine the project characteristics and constraints and determine to what degree, if any, these factors may influence the actual cost associated with constructing VCCs. For many VCC applications a working platform will be required. These costs should be included when comparing this technology with alternate technologies. The cost of the geosynthetic for the working platform is provided in the <em>Geosynthetic Reinforced Embankment Cost Information</em> document.</p><p><table class='tablepress' id='tablepress-124'><thead><th>Pay Item Description</th><th>Quantity</th><th>Unit</th><th>Low Unit Price</th><th>High Unit Price</th><th>Factors Which May Potentially Impact Costs</th></thead><tbody><tr><td >Vibro-Concrete Column</td><td >Greater Than 1,000</td><td >LF</td><td >$40.00</td><td >$60.00</td><td >Cost of concrete materials is sensitive to plant location and distances to raw material sources</td></tr><tr><td >Mobilization</td><td >1</td><td >LUMP SUM</td><td >$20,000</td><td >$40,000</td><td >Mobilization cost increases for distances greater than 500 miles

Phased projects may require multiple mobilizations
</td></tr><tr><td >Embankment</td><td >Greater Than
5,000
</td><td >CY</td><td >$-</td><td >$-</td><td >Use historical costs that are representative of the project quantity, project conditions and project location</td></tr></tbody></table><h2>Historical Cost Information</h2>A sample of actual project costs is shown in the table below.</p><p><table class='tablepress' id='tablepress-125'><thead><th>Pay Item Description</th><th>Quantity</th><th>Unit</th><th>Low Unit Price</th><th>High Unit Price</th><th>Average Unit Price</th><th>No. of Bids</th><th>Bid Date</th><th>Source/Agency</th></thead><tbody><tr><td >Vibro-Concrete Columns</td><td >132,500</td><td >LF</td><td >$40.00</td><td >n/a</td><td >n/a</td><td rowspan=4 >1</td><td rowspan=4 >6/1/2006</td><td rowspan=4 >New Jersey DOT</td></tr><tr><td >Vibro-Concrete Load Test</td><td >1</td><td >LUMP
SUM</td><td >$53,000</td><td >n/a</td><td >n/a</td></tr><tr><td >Vibro-Concrete Predrilling</td><td >1,500</td><td >LF</td><td >$15.00</td><td >n/a</td><td >n/a</td></tr><tr><td >Load Transfer Mat</td><td >11,710</td><td >SY</td><td >$70.00</td><td >n/a</td><td >n/a</td></tr></tbody></table><h2>Conceptual Cost Estimating Tool</h2>The conceptual cost estimating tool is intended to be used to develop a preliminary project scoping cost estimate. This preliminary estimate can be based on the typical construction cost item values as contained in the Cost Information product or from user specified cost values when such are known. Users should read and understand the information in Cost Information product prior to using the cost estimating tool. You can download the Cost Estimating Tool to open a cost estimating spreadsheet for producing a preliminary project scoping estimate.</p><p><a class="arrow-link" href="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/… the Cost Estimating Tool</a></p></p>