Daily Field Report

Density test report

Date *

Project Number *

Name of the Project *

Project Location

Client Company *

Weather

Arrival Date

Arrival Time

Departure Date

Departure Time

Onsite Hours

ASEC Technician Name

Observations/Finding

Summary *

<h3 data-section-id="czj4et" data-start="673" data-end="695">FIELD OBSERVATIONS</h3>
On the above date, an AS Engineering and Consulting, LLC (ASEC) representative visited the site at the contractor’s request to observe excavation and mud mat subgrade preparation along the sheet pile wall installed for the proposed bridge on the east side of Pumpkin Vine Creek and along River Walk Manor Drive, in accordance with the project drawings, specifications, and prior coordination with the design team.
Excavation was performed along the face of the installed sheet piles to expose the underlying material for mud mat placement. Based on prior coordination with the bridge designer, the mud mat is intended to bear directly on competent, clean bedrock, requiring removal of all overlying soil and debris and preparation of a clean rock surface.
To maintain temporary support for the sheet pile system, excavation was performed in an alternating sequence, leaving portions of the existing soil in place while adjacent sections were excavated to bedrock.

<h3 data-section-id="16ul5lt" data-start="1610" data-end="1633">TESTING AND RESULTS</h3>
A total of eleven (11) excavation sections were observed along the sheet pile alignment. Bedrock was encountered at varying elevations within each section.

<ul data-start="1796" data-end="2217">
 	<li data-section-id="1ghi5nq" data-start="1796" data-end="1950">Two (2) locations exhibited sufficient depth below proposed mud mat elevation to accommodate the required minimum mud mat thickness of 5 feet.</li>
 	<li data-section-id="1ghi5nq" data-start="1796" data-end="1950">
<table style="width: 62.2626%;height: 811px" width="414">
<tbody>
<tr style="height: 13px">
<td style="text-align: center;width: 120.219%;height: 13px" colspan="3" width="414">
MUD MAT THICKNESS (T) – FIELD MEASUREMENTS
</td>
</tr>
<tr style="height: 13px">
<td style="text-align: center;width: 15.3005%;height: 13px"></td>
<td style="text-align: center;width: 40.4372%;height: 13px"></td>
<td style="text-align: center;width: 64.4809%;height: 13px"></td>
</tr>
<tr style="height: 72px">
<td style="text-align: center;width: 15.3005%;height: 72px">Location</td>
<td style="text-align: center;width: 40.4372%;height: 72px" width="95">Estimated Mud Mat ThicknessT (ft-in)</td>
<td style="text-align: center;width: 64.4809%;height: 72px">Notes</td>
</tr>
<tr style="height: 31px" data-start="328" data-end="345">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="328" data-end="333" data-col-size="sm">1a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="333" data-end="341">2' 8"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="346" data-end="363">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="346" data-end="351" data-col-size="sm">1b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="351" data-end="359">2' 6"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="364" data-end="381">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="364" data-end="369" data-col-size="sm">2a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="369" data-end="377">5' 3"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="533" data-end="554">Meets requirement</td>
</tr>
<tr style="height: 31px" data-start="382" data-end="399">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="382" data-end="387" data-col-size="sm">2b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="387" data-end="395">5' 6"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="565" data-end="586">Meets requirement</td>
</tr>
<tr style="height: 31px" data-start="400" data-end="435">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="400" data-end="405" data-col-size="sm">3a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="405" data-end="411">-8"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="411" data-end="435">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="436" data-end="471">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="436" data-end="441" data-col-size="sm">3b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="441" data-end="447">-1'</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="411" data-end="435">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="472" data-end="504">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="472" data-end="477" data-col-size="sm">4a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="477" data-end="483">&gt;5'</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Meets requirement</td>
</tr>
<tr style="height: 31px" data-start="505" data-end="519">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="505" data-end="510" data-col-size="sm">4b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="510" data-end="515">1'</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="520" data-end="554">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="520" data-end="525" data-col-size="sm">5a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="477" data-end="483">&gt;5'</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="533" data-end="554">Meets requirement</td>
</tr>
<tr style="height: 31px" data-start="555" data-end="586">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="555" data-end="560" data-col-size="sm">5b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="560" data-end="565">0' 6"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="587" data-end="604">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="587" data-end="592" data-col-size="sm">6a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="592" data-end="600">3' 6"</td>
<td style="width: 64.4809%;height: 31px">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="605" data-end="630">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="605" data-end="610" data-col-size="sm">6b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="610" data-end="614">0</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="614" data-end="630">At elevation</td>
</tr>
<tr style="height: 31px" data-start="631" data-end="649">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="631" data-end="636" data-col-size="sm">7a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="636" data-end="645">0' 11"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="650" data-end="668">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="650" data-end="655" data-col-size="sm">7b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="636" data-end="645">0' 11"</td>
<td style="width: 64.4809%;height: 31px">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="669" data-end="704">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="669" data-end="674" data-col-size="sm">8a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-0' 6"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="411" data-end="435">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="705" data-end="745">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="705" data-end="710" data-col-size="sm">8b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-1' 6"</td>
<td style="width: 64.4809%;height: 31px">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="746" data-end="781">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="746" data-end="751" data-col-size="sm">9a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-3' 0"</td>
<td style="width: 64.4809%;height: 31px">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="782" data-end="817">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="782" data-end="787" data-col-size="sm">9b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="787" data-end="793">1' 0"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="483" data-end="504">Does not meet requirement</td>
</tr>
<tr style="height: 31px" data-start="818" data-end="857">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="818" data-end="824" data-col-size="sm">10a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-1' 6"</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="411" data-end="435">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="858" data-end="900">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="858" data-end="864" data-col-size="sm">10b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-0' 6"</td>
<td style="width: 64.4809%;height: 31px">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="901" data-end="943">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="901" data-end="907" data-col-size="sm">11a</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="710" data-end="721">-0' 6"</td>
<td style="width: 64.4809%;height: 31px">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="944" data-end="960">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="944" data-end="950" data-col-size="sm">11b</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-col-size="sm" data-start="950" data-end="956">-1'</td>
<td style="width: 64.4809%;height: 31px">Rock above bottom of footing elevation</td>
</tr>
<tr style="height: 31px" data-start="961" data-end="998">
<td style="text-align: center;width: 15.3005%;height: 31px" data-start="961" data-end="965" data-col-size="sm">—</td>
<td style="text-align: center;width: 40.4372%;height: 31px" data-start="965" data-end="969" data-col-size="sm">—</td>
<td style="width: 64.4809%;height: 31px" data-col-size="sm" data-start="969" data-end="998">“Uneven bottom” noted</td>
</tr>
</tbody>
</table>
</li>
 	<li data-section-id="xbigel" data-start="1951" data-end="2104">The remaining nine (9) locations encountered bedrock at shallower depths, resulting in potential mud mat thicknesses of less than 5 feet.</li>
 	<li data-section-id="31cbtm" data-start="2105" data-end="2217">In several areas, bedrock was encountered at or above the proposed bottom of footing or mud mat elevation.</li>
</ul>
The exposed bedrock surface was observed for cleanliness and preparation. The contractor utilized hand tools (shovels and brooms) to remove loose soil and debris and provide direct contact between the mud mat and the rock surface. The cleaned rock surface appeared adequately prepared for concrete placement.
The bedrock was observed to be generally competent based on visual assessment. While full continuity of the rock surface could not be verified within the excavated sections, prior subsurface exploration performed in this area indicates the presence of competent residual bedrock at this elevation.
Photographs documenting the rock profile and excavation conditions are included with this report.

<h3 data-section-id="19jq46v" data-start="2956" data-end="2990">DISCUSSION AND RECOMMENDATIONS</h3>
Observed conditions related to insufficient mud mat thickness in areas of shallow rock were discussed on site with Chad Clark and Brian Hughes of Reinforced Wall Systems.
Based on these observations, additional guidance from the project designer is required to address areas where the minimum 5-foot mud mat thickness cannot be achieved. Construction in these areas should not proceed until design direction is provided.

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