Summary for Test 2026-03-26-55-2
Test performed: CTM 301-March 2000Project Information
| Project Identifiers | Project ID: 1002109 DEA: 022J7404 EFIS: 0221000130 |
|---|---|
| DIST-CO-RTE-PM | 02-LAS-36-16.7/22.4 |
| Award Date | Not set |
| Closeout Date | Not set |
| Work Description | Susan River Pavement - Roadway Rehabilitation (3R) |
| Location Description | In Lassen County about 8 miles west of Susanville from 0.7 mile west of Susan River Bridge to 0.4 mile east of Eagle Lake Road. |
| QA Service Level | 1 (Verified on 04/16/2026) |
Sample Information
| Sample Taken Date | 03/26/2026 | Sample Unique Key | 55 |
|---|---|---|---|
| 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 | 03/27/2026 |
| Sample type | Preliminary | A brief description of the sample | 2 Bags Sand Silt 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 | Colt | Last name of sampler or witnessed by | Sweeny |
| Title of sampler | MREA | Telephone number of sampler | |
| Laboratory sample identification | D80168 | 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 20.0 | |
| Where the material sample would have been placed if not sampled |
Test Details
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DIME Sample ID: 2026-03-26-55
DIME Test ID: 2026-03-26-55-2
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: 2026-04-23
Test Results
How will the R value be determined?: By stabilometer
Input Type: Measured
Tester's full name: Josh Murphy
Date of test: 04/14/2026
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: 100 %
As Received Gradation, Percent Passing 1 in. sieve: 98 %
As Received Gradation, Percent Passing 3/4 in. sieve: 96 %
As Received Gradation, Percent Passing 1/2 in. sieve: 93 %
As Received Gradation, Percent Passing 3/8 in. sieve: 91 %
As Received Gradation, Percent Passing #4 sieve: 80 %
As Received Gradation, Percent Passing #8 sieve: 69 %
As Received Gradation, Percent Passing #16 sieve: 60 %
As Received Gradation, Percent Passing #30 sieve: 52 %
As Received Gradation, Percent Passing #50 sieve: 43 %
As Received Gradation, Percent Passing #100 sieve: 34 %
As Received Gradation, Percent Passing #200 sieve: 26.4 %
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: 97 %
As Used Gradation, Percent Passing 3/8 in. sieve: 94 %
As Used Gradation, Percent Passing #4 sieve: 82 %
As Used Gradation, Percent Passing #8 sieve: 71 %
As Used Gradation, Percent Passing #16 sieve: 62 %
As Used Gradation, Percent Passing #30 sieve: 53 %
As Used Gradation, Percent Passing #50 sieve: 44 %
As Used Gradation, Percent Passing #100 sieve: 35 %
As Used Gradation, Percent Passing #200 sieve: 27 %
Horizontal pressure (specimen 1): 0.18 MPa
Displacement (specimen 1): 4.05
Horizontal pressure (specimen 2): 0.3 MPa
Displacement (specimen 2): 4.25
Horizontal pressure (specimen 3): 0.5 MPa
Displacement (specimen 3): 5.3
R value (specimen 1): 75.9
R value (specimen 2): 61.1
R value (specimen 3): 36.1
R value: 55
General comments (publicly viewable) (Max 1000 characters): R=55
Test was verified on 4/23/2026 ✔