Summary for Test 2025-07-01-43-9

Test performed: ASTM D2487-17

Project Information

Project IdentifiersProject ID: 1001417
DEA: 022J7504
EFIS: 0221000131
DIST-CO-RTE-PM02-MOD-299-33.5/37.5
Award DateNot set
Closeout DateNot set
Work DescriptionCrowder Flat Pavement Roadway Rehabilitation
Location DescriptionIn Modoc County near Alturas from 3.6 miles west of Crowder Flat Road to 0.3 mile west of Rattlesnake Creek Bridge
QA Service Level1 (Verified on 07/22/2025)

Sample Information

Sample Taken Date07/01/2025 Sample Unique Key43
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 testing07/01/2025
Sample typePreliminary A brief description of the sample2 Bags Native Soil
The quantity of what the sample constitutesSand, Silt, Rock and Soil From where was the sample collectedSource
First name of sampler or witnessed byColt Last name of sampler or witnessed bySweeny
Title of samplerMREA Telephone number of sampler
Laboratory sample identificationD79942 Linked DIME Sample ID
The fabricator/manufacturer/facility nameCALTRANS Transportation Laboratory (TL) Number000001
Inspector Lot Number from the Transportation Laboratory (TL) Form Structure unique identifier
Structure name Bid ItemNot set

Material Information

Material TypeSoil 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 collectedShoulder MOD 299 pm 37.00
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2025-07-01-43
DIME Test ID: 2025-07-01-43-9
Testing Lab: CT D02 - Redding Northern Regional Laboratory
Test Method: ASTM D2487-17: Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
Test Release Date: 2025-12-05

Test Results


Units for Particle Size: millimeters
Input Type: Measured
Tester's full name: Ward Jenkins
Date of test: 12/05/2025
Percentage of plus 3-in. (75-mm) material: 0 %
Maximum particle size: 63 millimeters
Fines classification: Clayey
Percent fines: 31 %
Percent sand: 40 %
Percent gravel: 29 %
Liquid limit: 44
Plasticity Index: 19
Is soil fine-grained or coarse-grained?: coarse-grained
Fine-grained soil classification: no data
Inorganic clay classification: no data
Inorganic silt classification: no data
Organic fine-grained soil classification: no data
Any descriptors added to fine-grained soil classification?: no data
Coarse-grained soil classification: sand
Particle-size diameter at 10% passing (D10): 0.0219 millimeters
Particle-size diameter at 30% passing (D30): 0.0718 millimeters
Particle-size diameter at 60% passing (D60): 1.33 millimeters
Gravel classification: no data
Sand classification: clayey sand - SC
Any descriptors added to coarse-grained soil classification?: "with gravel"
Did field sample contain cobbles or boulders?: no data
Coarse-grained soil dual classification: no data
Descriptive information: no data
Coefficient of uniformity (Cu): 60.731
Coefficient of curvature (Cc): 0.177
General comments (publicly viewable) (Max 1000 characters): (SC)g, clayey sand with gravel

Test was verified on 12/5/2025