Browse
Search
2023-663-E-Planning Dept-Timmons Group-Construction Phase Service CPS or the Gravelly Hill Middle School Stormwater Wetland Retrofit Project
OrangeCountyNC
>
Board of County Commissioners
>
Contracts and Agreements
>
General Contracts and Agreements
>
2020's
>
2023
>
2023-663-E-Planning Dept-Timmons Group-Construction Phase Service CPS or the Gravelly Hill Middle School Stormwater Wetland Retrofit Project
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/21/2023 2:46:02 PM
Creation date
11/21/2023 2:45:54 PM
Metadata
Fields
Template:
Contract
Date
11/14/2023
Contract Starting Date
11/14/2023
Contract Ending Date
11/15/2023
Contract Document Type
Contract
Amount
$20,980.00
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
15
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
<br /> <br /> <br /> <br /> <br />EXHIBIT A <br />SCOPE OF SERVICES <br />5410 Trinity Rd. <br />Suite 102 <br />Raleigh, NC 27607 <br />P 919.866.4951 <br />F 919.859.5663 <br />www.timmons.com <br />Fill Placement Observation and Density Testing <br />During fill placement, our personnel can observe grading activities and perform in-place density tests to <br />evaluate achieved compaction. Density testing will be performed in accordance with ASTM D-6938 with <br />a nuclear gauge, ASTM D1556 with sand cone method or ASTM 2937 drive tube method. Additionally, we <br />can perform Standard Proctor compaction tests (ASTM D-698) and Atterberg limits testing (ASTM D-4318) <br />prior to fill placement to aid in our density testing. <br />Storm Structure Foundation Observations <br />After excavation of the foundation subgrades, the subgrades can be evaluated by our personnel to confirm <br />planned depth and dimensions and “clean” excavation bottom, note seepage of water and suggest and <br />observe corrective measures at problem areas. We will confirm that exposed soils beneath foundations <br />meet the required allowable bearing pressure in accordance with the project plans and specifications. If <br />soft bearing soils are encountered, recommendations will be made for repairs. <br />Reinforcing Steel <br />Our personnel can observe the placement of reinforcing steel within the foundations to check its <br />conformance with the project plans and specifications for proper size, grade, spacing cover, cleanliness, <br />length, location and types of splices and report its conformance with the plan and specifications. <br /> <br />Cast-In-Place Concrete Construction <br /> <br />Sample fresh concrete and perform testing in accordance with ASTM C-143 for Slump, ASTM C-1064 for <br />Temperature and ASTM C-231 or ASTM C-173 for air content during concrete placement. Representative <br />4-inch by 8-inch concrete cylinders will also be cast in accordance with ASTM C-39 for Compressive <br />Strength Testing. Pick-up and return test specimens to our laboratory within 24 hours after casting. <br />Laboratory curing, compressive strength testing and reporting of concrete cylinder test specimens. <br /> <br />Miscellaneous Sitework Observations <br />Our personnel can observe the placement and compaction of utility trench backfill and perform density <br />testing of these materials to confirm adequate compaction. We can observe and test miscellaneous <br />concrete work (i.e. concrete pavement) to include slump tests, air content, unit weight and temperature. <br />Reporting to Designated Parties <br /> <br />Our personnel will discuss observations and test results with appropriate site personnel daily. This <br />includes maintaining a discrepancy log that will be communicated to the project team on a regular basis. <br />Daily field reports will be generated to document our observations and test results. These reports will be <br />emailed to the contractor and other designated project team members. Each field report will be reviewed <br />by our project manager and/or senior engineer and then issued in a typed format to the designated <br />DocuSign Envelope ID: B64BB097-D2D0-4F1C-B29D-09757C8A1D1C
The URL can be used to link to this page
Your browser does not support the video tag.