Summary for Test 2026-04-27-65-4

Test performed: ASTM D2487-17

Project Information

Project IdentifiersProject ID: 1000478
DEA: 020K6404
EFIS: 0223000189
DIST-CO-RTE-PM02-SIS-97-18.0/22.4
Award Date12/31/2024
Closeout DateNot set
Work DescriptionCONSTRUCT WILDLIFE OVERPASS, INSTALL CULVERT, AND INSTALL FENCING.
Location DescriptionSISKIYOU COUNTY NEAR GRASS LAKE FROM 1.4 MILES NORTH OF DEER MOUNTAIN ROAD TO 0.6 MILE NORTH OF GRASS LAKE REST AREA
QA Service Level1 (Verified on 07/31/2024)

Sample Information

Sample Taken Date04/27/2026 Sample Unique Key65
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 testing04/28/2026
Sample typeAcceptance A brief description of the sample1 Bag Native Soil
The quantity of what the sample constitutesPrevious Culvert Compaction - Native Soil From where was the sample collectedJob Site
First name of sampler or witnessed byJoe Last name of sampler or witnessed byDelgado
Title of samplerConsultant Telephone number of sampler
Laboratory sample identificationD80183 Linked DIME Sample ID
The fabricator/manufacturer/facility nameMcCuen Construction Transportation Laboratory (TL) Number875617
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 collected5.5' Below finished grade SIS-97
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2026-04-27-65
DIME Test ID: 2026-04-27-65-4
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: 2026-05-18

Test Results


Units for Particle Size: millimeters
Input Type: Measured
Tester's full name: Colt Sweeny
Date of test: 05/18/2026
Percentage of plus 3-in. (75-mm) material: 0 %
Maximum particle size: 37.5 millimeters
Fines classification: Clayey
Percent fines: 25 %
Percent sand: 42 %
Percent gravel: 32 %
Liquid limit: 31
Plasticity Index: 10
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?: "with gravel"
Coarse-grained soil classification: sand
Particle-size diameter at 10% passing (D10): 0.027 millimeters
Particle-size diameter at 30% passing (D30): 0.102 millimeters
Particle-size diameter at 60% passing (D60): 2.31 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: Clayey sand with gravel, (SC)g
Descriptive information: no data
Coefficient of uniformity (Cu): 85.556
Coefficient of curvature (Cc): 0.167
General comments (publicly viewable) (Max 1000 characters): Clayey sand with gravel, (SC)g

Test was verified on 5/18/2026