Summary for Test 2026-09-02-97-13

Test performed: ASTM D2487-17

Project Information

Project IdentifiersProject ID: 1002816
DEA: 022J7604
EFIS: 0221000132
DIST-CO-RTE-PM02-TRI-3-5/11
Award DateNot set
Closeout DateNot set
Work DescriptionHayfork Pavement
Location DescriptionPavement Preservation (CAPM) in Trinity County at and near Hayfork from 1.3 miles south of Morgan Hill Road to 1.2 miles north of Willow Avenue.
QA Service Level1 (Verified on 11/02/2026)

Sample Information

Sample Taken Date09/02/2026 Sample Unique Key97
Date that the sample was received by the laboratory/organization performing the testing09/02/2026 Sample typePreliminary
A brief description of the sample2 bags of Soil The quantity of what the sample constitutesExisting Subgrade for Structural Section Recommendation
From where was the sample collectedJob Site First name of sampler or witnessed byDerek
Last name of sampler or witnessed bySerna Title of sampler
Telephone number of sampler Laboratory sample identificationD80386
Linked DIME Sample ID The fabricator/manufacturer/facility nameIn Situ
Transportation Laboratory (TL) Number 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 collected02-Tri-3-6.0 Shoulder, 0.0-1.5' depth
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2026-09-02-97
DIME Test ID: 2026-09-02-97-13
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: 2026-11-03

Test Results


Units for Particle Size: inches
Input Type: Measured
Tester's full name: Ward Jenkins
Date of test: 11/02/2026
Percentage of plus 3-in. (75-mm) material: 0 %
Maximum particle size: 1.5 inches
Fines classification: Silty
Percent fines: 29 %
Percent sand: 39 %
Percent gravel: 32 %
Liquid limit: 38
Plasticity Index: 11
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): no data
Particle-size diameter at 30% passing (D30): 0.082 millimeters
Particle-size diameter at 60% passing (D60): 2.84 millimeters
Gravel classification: no data
Sand classification: silty sand - SM; silty
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): no data
Coefficient of curvature (Cc): no data
General comments (publicly viewable) (Max 1000 characters): (SM)g, Silty Sand with Gravel

Test was verified on 11/3/2026 ✔