<p><p><h2>Commentary</h2>Payment for jet grouting typically consists of a grouting pay item measured by the cubic yard (CY). Included in this bid item are associated incidental costs such as:<br><ul> <li>Layout of a grouting pattern</li> <li>Disposal of spoils</li> <li>Instrumentation, monitoring, and quality control</li></ul>Other costs associated with jet grouting which are measured and paid for separately include:<br><ul> <li>Mobilization</li></ul><h2>Cost Information Summary</h2>The following table lists items which are associated with the cost of jet grouting and approximate cost ranges. Cost ranges are based on data from 2004 through 2008. 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 jet grouting.</p><p><table class='tablepress' id='tablepress-101'><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 >Mobilization</td><td >1</td><td >LUMP SUM</td><td >$25,000</td><td >$50,000</td><td >Equipment mobilized includes: drill rig(s), compressor(s), grout mixers, and pumps.
Mobilization cost increases for distances greater than 500 miles.
Phased projects may require multiple mobilizations</td></tr><tr><td >Jet Grouting</td><td >Greater than
500
</td><td >CY</td><td >$250.00</td><td >$750.00</td><td >Grout cost is sensitive to the grout mixture proportions, particularly the volume of Portland cement required per cubic yard.
Unit costs are higher for locations which have headroom constraints.
Unit costs decrease as the depth of grouting increases</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-102'><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 >Jet Grouting</td><td >2,083</td><td >CY</td><td >$249.95</td><td >$660.00</td><td >$484.71</td><td >7</td><td >10/14/2008</td><td >South Carolina DOT</td></tr><tr><td >Excavation (Low Strength Jet Grouting) Plan ATTD</td><td >500</td><td >CY</td><td >$475.00</td><td >n/a</td><td >n/a</td><td >1</td><td >2/25/2004</td><td >Virginia DOT</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>