DIME - Test Summary

Summary for Test 2025-10-08-67-5

Test performed: ASTM D2487-17

Project Identifiers	Project ID: 1001796 DEA: 021K5404 EFIS: 0224000119
DIST-CO-RTE-PM	02-SHA-44-R26.94/R27.62
Award Date	05/02/2028
Closeout Date	Not set
Work Description	West Shingletown Shoulder Widening and Rumble Strips
Location Description	In Shasta County at Shingletown from 1.0 Mile West to 0.2 Mile west of Wilson Hil Road
QA Service Level	1 (Verified on 10/28/2025)

Sample Taken Date	10/08/2025	Sample Unique Key	67
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	10/09/2025
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	Derek	Last name of sampler or witnessed by	Serna
Title of sampler	MREA	Telephone number of sampler
Laboratory sample identification	D80081	Linked DIME Sample ID
The fabricator/manufacturer/facility name	District 2 Lab	Transportation Laboratory (TL) Number	897622
Inspector Lot Number from the Transportation Laboratory (TL) Form		Structure unique identifier
Structure name		Bid Item	Not set

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 at SHA 44, PM 27.00
Where the material sample would have been placed if not sampled

DIME Sample ID: 2025-10-08-67

DIME Test ID: 2025-10-08-67-5

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: 2025-10-29

Units for Particle Size: millimeters

Input Type: Measured

Tester's full name: Colt Sweeny

Date of test: 10/28/2025

Percentage of plus 3-in. (75-mm) material: 0 %

Maximum particle size: 25 millimeters

Fines classification: Silty

Percent fines: 57 %

Percent sand: 37 %

Percent gravel: 6 %

Liquid limit: 38

Plasticity Index: 8

Is soil fine-grained or coarse-grained?: fine-grained

Fine-grained soil classification: no data

Inorganic clay classification: no data

Inorganic silt classification: silt - ML

Organic fine-grained soil classification: no data

Any descriptors added to fine-grained soil classification?: "sandy"

Coarse-grained soil classification: sand

Particle-size diameter at 10% passing (D10): 0.012 millimeters

Particle-size diameter at 30% passing (D30): 0.035 millimeters

Particle-size diameter at 60% passing (D60): 0.08 millimeters

Gravel classification: silty

Sand classification: no data

Any descriptors added to coarse-grained soil classification?: no data

Did field sample contain cobbles or boulders?: no data

Coarse-grained soil dual classification: A sandy silt, s(ML)

Descriptive information: no data

Coefficient of uniformity (Cu): 6.667

Coefficient of curvature (Cc): 1.276

General comments (publicly viewable) (Max 1000 characters):

Test was verified on 10/29/2025 ✔