Summary for Test 2026-01-20-46-2
Test performed: CTM 301-March 2000Project Information
| Project Identifiers | Project ID: 1001957 DEA: 021K7204 EFIS: 0224000158 |
|---|---|
| DIST-CO-RTE-PM | 02-SHA-273-5.2/14.5 |
| Award Date | 11/21/2028 |
| Closeout Date | Not set |
| Work Description | Brighter 273 Safety - Install lighting |
| Location Description | In Shasta County from 0.1 mile North of Anderson Creek bridge in Anderson to 0.1 North of Buenaventura Boulevard in Redding 6/17/24 JC |
| QA Service Level | 1 (Verified on 02/17/2026) |
Sample Information
| Sample Taken Date | 01/20/2026 | Sample Unique Key | 46 |
|---|---|---|---|
| Will the laboratory/organization for which you are a member perform testing on this material sample? | Yes | Date that the sample was received by the laboratory/organization performing the testing | 01/21/2026 |
| Sample type | Preliminary | A brief description of the sample | 2 Bags Rock and Soil |
| The quantity of what the sample constitutes | Structural Section Recommendation | From where was the sample collected | Source |
| First name of sampler or witnessed by | Derek | Last name of sampler or witnessed by | Serna |
| Title of sampler | MREA | Telephone number of sampler | |
| Laboratory sample identification | D80134 | Linked DIME Sample ID | |
| The fabricator/manufacturer/facility name | District 2 Lab | Transportation Laboratory (TL) Number | |
| Inspector Lot Number from the Transportation Laboratory (TL) Form | Structure unique identifier | ||
| Structure name | Bid Item | Not set |
Material Information
| Material Type | Soil | The fabricator's/manufacturer's product name for the sample | |
|---|---|---|---|
| The fabricator/manufacturer designation for the sample | A detailed description of where the material sample was collected | Shoulder Slope near PM 10.0 | |
| Where the material sample would have been placed if not sampled |
Test Details
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DIME Sample ID: 2026-01-20-46
DIME Test ID: 2026-01-20-46-2
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: 2026-02-18
Test Results
How will the R value be determined?: By stabilometer
Input Type: Measured
Tester's full name: Josh Murphy
Date of test: 02/17/2026
As Received Gradation, Percent Passing 3 in. sieve: no data
As Received Gradation, Percent Passing 2 1/2 in. sieve: 100 %
As Received Gradation, Percent Passing 2 in. sieve: 98 %
As Received Gradation, Percent Passing 1 1/2 in. sieve: 92 %
As Received Gradation, Percent Passing 1 in. sieve: 84 %
As Received Gradation, Percent Passing 3/4 in. sieve: 77 %
As Received Gradation, Percent Passing 1/2 in. sieve: 66 %
As Received Gradation, Percent Passing 3/8 in. sieve: 61 %
As Received Gradation, Percent Passing #4 sieve: 50 %
As Received Gradation, Percent Passing #8 sieve: 40 %
As Received Gradation, Percent Passing #16 sieve: 33 %
As Received Gradation, Percent Passing #30 sieve: 26 %
As Received Gradation, Percent Passing #50 sieve: 21 %
As Received Gradation, Percent Passing #100 sieve: 17 %
As Received Gradation, Percent Passing #200 sieve: 13 %
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: 86 %
As Used Gradation, Percent Passing 3/8 in. sieve: 79 %
As Used Gradation, Percent Passing #4 sieve: 65 %
As Used Gradation, Percent Passing #8 sieve: 52 %
As Used Gradation, Percent Passing #16 sieve: 43 %
As Used Gradation, Percent Passing #30 sieve: 34 %
As Used Gradation, Percent Passing #50 sieve: 27 %
As Used Gradation, Percent Passing #100 sieve: 21 %
As Used Gradation, Percent Passing #200 sieve: 17 %
Horizontal pressure (specimen 1): 0.28 MPa
Displacement (specimen 1): 4.45
Horizontal pressure (specimen 2): 0.2 MPa
Displacement (specimen 2): 4.37
Horizontal pressure (specimen 3): 0.14 MPa
Displacement (specimen 3): 4.05
R value (specimen 1): 62.2
R value (specimen 2): 72
R value (specimen 3): 80.9
R value: 71
General comments (publicly viewable) (Max 1000 characters): R=71
Test was verified on 2/18/2026 ✔