Summary for Test 2025-08-13-78-5

Test performed: ASTM D2487-17

Project Information

Project IdentifiersProject ID: 1001282
DEA: 022J8604
EFIS: 0221000142
DIST-CO-RTE-PM02-SHA-5-61.75/61.75
Award DateNot set
Closeout DateNot set
Work DescriptionSweetbrier Deck Replacement - Bridge Rehabilitation and Replacement
Location DescriptionIn Shasta County near Castella at Sweetbrier Overcrossing Bridge #06-0115
QA Service Level1 (Verified on 05/27/2025)

Sample Information

Sample Taken Date08/13/2025 Sample Unique Key78
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 testing08/14/2025
Sample typePreliminary A brief description of the sampleSand, Silt, Rock and Soil
The quantity of what the sample constitutesNot Provided From where was the sample collectedSource
First name of sampler or witnessed byBrian Last name of sampler or witnessed bySteiner
Title of samplerAssistant DME Telephone number of sampler
Laboratory sample identificationD80002 Linked DIME Sample ID
The fabricator/manufacturer/facility nameRoadside Transportation Laboratory (TL) Number858148
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 Slope near SHA 5 PM 61.75 at the NB Sweetbrier offramp
Where the material sample would have been placed if not sampled

Test Details

DIME Sample ID: 2025-08-13-78
DIME Test ID: 2025-08-13-78-5
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: 2025-09-03

Test Results


Units for Particle Size: millimeters
Input Type: Measured
Tester's full name: Colt Sweeny
Date of test: 09/03/2025
Percentage of plus 3-in. (75-mm) material: 0 %
Maximum particle size: 50 millimeters
Fines classification: Silty
Percent fines: 26 %
Percent sand: 37 %
Percent gravel: 37 %
Liquid limit: 30.7
Plasticity Index: 0
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: no data
Particle-size diameter at 10% passing (D10): 0.026 millimeters
Particle-size diameter at 30% passing (D30): 0.116 millimeters
Particle-size diameter at 60% passing (D60): 3.64 millimeters
Gravel classification: silty
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: A silty sand with gravel, (SM)g
Descriptive information: no data
Coefficient of uniformity (Cu): 140
Coefficient of curvature (Cc): 0.142
General comments (publicly viewable) (Max 1000 characters): A silty sand with gravel, (SM)g

Test was verified on 9/3/2025