Summary for Test 2026-04-14-38-4
Test performed: CTM 301-March 2000Project Information
| Project Identifiers | Project ID: 1002031 DEA: 024K0504 EFIS: 0226000137 |
|---|---|
| DIST-CO-RTE-PM | 02-SHA-89-29.2/29.4 |
| Award Date | Not set |
| Closeout Date | Not set |
| Work Description | Excavate and replace unstable subgrade, install geotextile fabric, and reconstruct the structural pavement section. |
| Location Description | IN SHASTA COUNTY ABOUT 7 MILES NORTH OF FOUR CORNERS FROM LAKE BRITTON BRIDGE TO 0.2 MILE NORTH OF LAKE BRITTON BRIDGE. |
| QA Service Level | 1 (Verified on 04/10/2026) |
Sample Information
| Sample Taken Date | 04/14/2026 | Sample Unique Key | 38 |
|---|---|---|---|
| Date that the sample was received by the laboratory/organization performing the testing | 04/15/2026 | Sample type | Acceptance |
| A brief description of the sample | 2 bags of 3/4-inch Maximum Class 2 Aggregate Base | The quantity of what the sample constitutes | not provided |
| From where was the sample collected | Manufacturer | First name of sampler or witnessed by | Cindy |
| Last name of sampler or witnessed by | Bryant | Title of sampler | TET |
| Telephone number of sampler | Laboratory sample identification | D80180 | |
| Linked DIME Sample ID | The fabricator/manufacturer/facility name | Hat Creek Construction and Materials - Shaw Pit - Lookout, CA | |
| Transportation Laboratory (TL) Number | 824081 | Inspector Lot Number from the Transportation Laboratory (TL) Form | |
| Structure unique identifier | Structure name | ||
| Bid Item | Not set |
Material Information
| Material Type | Aggregate | Source Identification (SMARA, name of Pit or Job Site) | 91-25-0008 |
|---|---|---|---|
| The fabricator's/manufacturer's product name for the sample | The fabricator/manufacturer designation for the sample | ||
| The plant number | A detailed description of where the material sample was collected | Stockpile | |
| Where the material sample would have been placed if not sampled | Primary Aggregate Nominal Size | 3/4 inch | |
| The concrete mix design number | Lot number | ||
| Sublot number | Aggregate Mix Number |
Test Details
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DIME Sample ID: 2026-04-14-38
DIME Test ID: 2026-04-14-38-4
Testing Lab: CT D02 - Redding Northern Regional Laboratory
Test Method: CTM 301-March 2000: Method for Determining the Resistance "R" Value of Treated and Untreated Bases, Subbases, and Basement Soils by the Stabilometer
Test Release Date: 2026-04-27
Test Results
How will the R value be determined?: By stabilometer
Input Type: Measured
Tester's full name: Josh Murphy
Date of test: 04/23/2026
As Received Gradation, Percent Passing 3 in. sieve: no data
As Received Gradation, Percent Passing 2 1/2 in. sieve: no data
As Received Gradation, Percent Passing 2 in. sieve: no data
As Received Gradation, Percent Passing 1 1/2 in. sieve: no data
As Received Gradation, Percent Passing 1 in. sieve: 100 %
As Received Gradation, Percent Passing 3/4 in. sieve: 98 %
As Received Gradation, Percent Passing 1/2 in. sieve: 71 %
As Received Gradation, Percent Passing 3/8 in. sieve: 57 %
As Received Gradation, Percent Passing #4 sieve: 37 %
As Received Gradation, Percent Passing #8 sieve: 22 %
As Received Gradation, Percent Passing #16 sieve: 15 %
As Received Gradation, Percent Passing #30 sieve: 12 %
As Received Gradation, Percent Passing #50 sieve: 9 %
As Received Gradation, Percent Passing #100 sieve: 8 %
As Received Gradation, Percent Passing #200 sieve: 6 %
As Used Gradation, Percent Passing 3 in. sieve: no data
As Used Gradation, Percent Passing 2 1/2 in. sieve: no data
As Used Gradation, Percent Passing 2 in. sieve: no data
As Used Gradation, Percent Passing 1 1/2 in. sieve: no data
As Used Gradation, Percent Passing 1 in. sieve: 100 %
As Used Gradation, Percent Passing 3/4 in. sieve: 100 %
As Used Gradation, Percent Passing 1/2 in. sieve: 72 %
As Used Gradation, Percent Passing 3/8 in. sieve: 57 %
As Used Gradation, Percent Passing #4 sieve: 36 %
As Used Gradation, Percent Passing #8 sieve: 33 %
As Used Gradation, Percent Passing #16 sieve: 26 %
As Used Gradation, Percent Passing #30 sieve: 23 %
As Used Gradation, Percent Passing #50 sieve: 9 %
As Used Gradation, Percent Passing #100 sieve: 8 %
As Used Gradation, Percent Passing #200 sieve: 6 %
Horizontal pressure (specimen 1): 0.07 MPa
Displacement (specimen 1): 6.05
Horizontal pressure (specimen 2): 0.08 MPa
Displacement (specimen 2): 6.2
Horizontal pressure (specimen 3): 0.1 MPa
Displacement (specimen 3): 6.4
R value (specimen 1): 85.9
R value (specimen 2): 83.7
R value (specimen 3): 79.6
R value: 83
General comments (publicly viewable) (Max 1000 characters): R=83
Test was verified on 4/27/2026 ✔