crla201801_GM 32-24 Summit Quarry Material Testing Rev2.pdf

Date: October 21, 2024

To: Carrie Warren Project Manager

From: Nicholas J. Farny Engineering Geologist

Copies: Evan Garich, Geotechnical Engineering Team Lead Jennifer Corwin, Environment Senior Technical Specialist Lori Figone, Construction Operations Engineer Aaron Coenen, Materials Function Manager Mark Swank, Engineering Geology Team Lead

Subject: Geotechnical Memorandum 32-24 Summit Quarry Material Testing Cleetwood Trail and Marina Improvement

OR NPS CRLA 2018(1)

Crater Lake National Park, Oregon

Introduction

It is our understanding that Summit Quarry, located in Fremont-Winema National Forest, may be used as a material source for the OR NPS CRLA 2018(1) Cleetwood Trail and Marina Improvement Project (project). This memorandum summarizes Western Federal Lands Highway Divisions (WFLHD) site observations, laboratory testing results, and recommendations for use.

Background and Geology

The OR NPS CRLA 2018(1) Cleetwood Trail and Marina Improvement Project will require substantial quantities of rock materials for the proposed construction. These materials include, but are not limited to, rock for rockeries, riprap, granular rock backdrain, select granular backfill, and filter rock. Though some aggregate materials may be generated during construction, these materials will have limited reuse, as detailed in Geotechnical Report 05-24 (FHWA, 2024).

The approximately 17 acre Summit Quarry, located approximately 8 miles north of the project (43.0993°, -122.0777) at the northern termination of National Forest Road 960 (NF 960), is a previously developed material source site in the Fremont-Winema National Forest (see Figures 1.1 and 1.2 in Attachment 1) and has been identified for potential use on this project.

This geology at the quarry is mapped as QTi Intrusive rocks (Pleistocene to Pliocene), which is comprised of plugs of basalt, basaltic andesite, and andesite, and QTmv Mafic vent deposits

(Holocene to Pliocene), which is comprised of tuff, lapilli tuff, and tuff breccia ranging from basalt to basaltic andesite (Sherrod, 1991).

Geotechnical Investigation

WFLHD performed a site reconnaissance of Summit Quarry on July 9, 2024. A sample of andesite rock was collected at the location (identified as Grab Sample) shown on Figure 1.3 in Attachment 1 and was submitted to the WFLHD Materials Laboratory for testing. Laboratory test reports are contained in Attachment 2. The following is a list of tests that were completed on the rock sample and the standards that were followed:

Accelerated Weathering – D WMSO-19 Soundness of Aggregate (Fine and Coarse) – AASHTO T 104 Resistance to degradation by LA Machine – AASHTO T 96 Aggregate Durability Index (Fine and Coarse) – AASHTO T 210 Sieve Analysis of Aggregate and Minus No. 200 Wash – AASHTO T 27 and T 11 Specific Gravity and Absorption – AASHTO T 84/T 85 Sand Equivalent Test – AASHTO T 176 Atterberg Limits – AASHTO T 89 and T 90

The results of these tests were used to estimate the quality of the andesite.

Site Conditions

The existing infrastructure at Summit Quarry includes a network of dirt and gravel roads that provide access to a hill at the north end of the quarry (see Figure 1.3 in Attachment 1). This hill consists of intact rock outcrops of andesite and pyroclastic breccia and loose rock and soil, assumed to have been generated during the previous site development as a material source. Vegetation is generally sparse and consists predominately of small to large conifer trees.

The quarry and various clearings along NF 960 are used as dispersed camping sites. Numerous recreation vehicles were located in the clearings along NF 960 during the site reconnaissance, and evidence of old campfires were observed inside the quarry.

The predominate rock type observed in the quarry is andesite (See Photo 1, refer to Figure 1.3 in Attachment 1 for Photo locations). The andesite is bluish gray to light brown, fine to medium grained, fresh to slightly weathered, strong rock (R4). Intact rock outcrops had closely to widely spaced discontinuities in good to excellent condition, and the discontinuity orientations ranged from 10 to 90 degrees from assumed horizontal (Photo 2). The clasts of loose andesite material ranges in size from fine gravel (> 0.2 inches) to boulders (up to approximately 7 feet in dimension).

The majority of the boulders appear to be from 2 to 4 feet in dimension (Photos 3 and 4).

Photo 1. View of Summit Quarry, looking northwest.

Photo 2. Intact rock mass of andesite in Summit Quarry, looking northwest. The boulder circled in red is pyroclastic breccia.

Photo 3. Existing andesite rock in Summit Quarry, looking west.

Photo 4. Existing andesite outcrops and rocks in Summit Quarry, looking north.

In addition to the andesite, sporadic outcrops and loose cobbles and boulders (up to 3 to 4 feet in dimension) of pyroclastic breccia (See Photo 2, Photo 5, and Photo 6) were observed. The pyroclastic breccia is reddish brown, fine to very coarse grained, fresh to slightly weathered, very weak to weak rock (R1 to R2). The outcrops of intact pyroclastic breccia are globular and appear to lack discontinuities.

Recommendations

The pyroclastic breccia, due to its low strength and relatively low density, is unsuitable as a material source and should not be used on the project.

The test results on the andesite sample indicate the rock meets or exceeds some of the project’s material quality requirements for riprap, rock for rockeries, select granular backfill, filter rock, and granular rock backdrain, among others. Refer to Attachment 3 for a summary of the test results of the andesite compared to material quality contract requirements. Material processing and additional testing, such as alkali-silica reactivity, will need to be performed for use as a Coarse Aggregate for Concrete and/or subbase, Base, and Surface Course Aggregate in accordance with FP14 Section 703.02 and Section 703.05, respectively.

At the time of writing this memo, the permitting to use the materials in Summit Quarry on the project was ongoing, and therefore the amount of available material and the required amount of additional quality testing was unknown. Please refer to the project SCRs in Section 105 for further guidance.

Photo 5. Pyroclastic breccia cobbles and boulders, looking west.

Photo 6. View of Summit Quarry, looking south. Cobbles, boulders, and outcrops of pyroclastic breccia are circled in red.

Closing

If you have any question or concerns with the information presented herein, please contact Nicholas Farny at nicholas.farny@dot.gov or Mark Swank at mark.swank@dot.gov.

References

FHWA (2024) Cleetwood Cove Trail and Marina Improvements Project Final Geotechnical Report, Geotechnical Report No 05-24, OR NPS CRLA 2018(1) Klamath County, Oregon, year 2024.

Sherrod, D.R (1991) Geologic Map of a Part of the Cascade Range Between Latitudes 43° - 44°, Central Oregon, U.S. Department of the Interior, U.S. Geological Survey, Miscellaneous Investigation Series Map I-1891.

Attachments

Attachment 1 – Summit Quarry Vicinity Map, Site Map, and Sample and Photo Location Map Attachment 2 – Laboratory Testing Results Attachment 3 – Comparison of Testing Results to Material Quality Contract Requirements

Attachment 1 - Summit Quarry Vicinity Map, Site Map, and Sample and Photo Location Map

Vicinity Map Figure 1.1

Legend

Project Site

Summit Quarry

7 mi

N

N Image © 2024 Airbus

Image © 2024 Airbus

Site Map Figure 1.2

Legend

Summit Quarry

3000 ft

N

N Image © 2024 Airbus

Sample and Photo Location Map Figure 1.3

Legend

Grab Sample

Photo Location

500 ft

N

N

Attachment 2 - Laboratory Testing Results

Western Federal Lands

Project No.: OR NPS CRLA 2018(1) Sample ID: W-24-0647-GS

Materials Laboratory

ISO/IEC 17025:2017 Accredited Date Distributed: 08/13/2024

Table of Contents

Station:

Material Description: 301 - Source (Untreated Agg Course)

MilePost:

Offset:

Intended Use:

Remarks:

Source Name:

Source Location:

Sample Location: Pit

Submitted By: Nick Farny

Quantity Represented:

Item No.:

Field Sample No.: Summit Quarry - Source Testing

Lot No.:

Date Sampled: 7/9/2024

Depth:

Hole No.:

Project Name: Cleetwood Trail and Marina Improvements

W-24-0647-GS _________________________________________________________________ 2

Station:

Western Federal Lands

Project No.: OR NPS CRLA 2018(1) Sample ID: W-24-0647-GS

Materials Laboratory

ISO/IEC 17025:2017 Accredited Date Distributed: 08/13/2024

Material Description: 301 - Source (Untreated Agg Course)

MilePost:

Offset:

Intended Use:

Remarks:

Source Name:

Source Location:

Sample Location: Pit

Submitted By: Nick Farny

Quantity Represented:

Item No.:

Field Sample No.: Summit Quarry - Source Testing

Lot No.:

Date Sampled: 7/9/2024

Depth:

Hole No.:

Project Name: Cleetwood Trail and Marina Improvements

Unit of MeasureResult

Total Weighted Loss 0.0 %

Methods: W DMSO-19 (W DMSO is not an AAP accredited test) Test Date: 8/7/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/7/2024

Version 1

Unit of MeasureResult

-2" to +1-1/2" Weighted % Loss 0.0 %

-1-1/2" to +3/4 Weighted % Loss 0.0 %

-3/4" to +3/8" Weighted % Loss 0.0 %

-3/8" to +No. 4 Weighted % Loss 0.0 %

Total Weighted Loss 0.1 %

Percent of Coarse Aggregate In Sample 50 %

Solution Type Sodium Sulfate

Methods: AASHTO T 104 - Soundness of Aggregate - Coarse Aggregate Test Date: 8/12/2024 Tested By: Eric Wilson

Comments:

Test Validated By: Eric Wilson Validated Date: 8/12/2024

Version 1

Methods: AASHTO T 104 - Soundness of Aggregate - Fine Aggregate Test Date: 8/9/2024 Tested By: Eric WilsonVersion 1

All reported results apply to the sample as received.

Page 2 of 5Sample ID: W-24-0647-GS

Con tro lle d C op y

Unit of MeasureResult

- #4, + #8 Weighted % Loss 0.5 %

- #8, + #16 Weighted % Loss 0.3 %

- #16, + #30 Weighted % Loss 0.2 %

- #30, + #50 Weighted % Loss 0.3 %

Total Weighted Loss 1 %

Percent of fines in sample 50 %

Solution Type Sodium Sulfate

Comments:

Test Validated By: Eric Wilson Validated Date: 8/12/2024

Unit of MeasureResult

Grading (A, B, C, or D) B

Percent Loss by Abrasion 25 %

Methods: AASHTO T 96 - Resistance to degradation by LA Machine Test Date: 7/30/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 7/30/2024

Version 1

Unit of MeasureResult

Coarse Aggregate Durability Index 90.0

Methods: AASHTO T 210 - Aggregate Durability Index (Coarse) Test Date: 8/2/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/2/2024

Version 1

Unit of MeasureResult

Fine Aggregate Durability Index 88

Methods: AASHTO T 210 - Aggregate Durability Index (Fine) Test Date: 8/1/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/2/2024

Version 1

Unit of MeasureResult

6"sieve (152.4 mm) % Passing - %

Methods: AASHTO T 11 & T 27 - Sieve Analysis of Aggregate & Minus No.

200 Wash

Test Date: 8/7/2024

Tested By: Jerrad IschVersion 1

All reported results apply to the sample as received.

Page 3 of 5Sample ID: W-24-0647-GS

Con tro lle d C

5" sieve (127.0 mm) % Passing - %

4" sieve (101.6 mm) % Passing - %

3.5" sieve (88.9 mm) % Passing - %

3" sieve(76.2 mm) % Passing - %

2.5" sieve (63.5 mm) % Passing - %

2" sieve (50.0 mm) % Passing - %

1.5" sieve (37.5 mm) % Passing - %

1" sieve (25.0 mm) % Passing 100 %

3/4" sieve (19.0 mm) % Passing 93 %

1/2" sieve (12.5 mm) % Passing 75 %

3/8" sieve (9.5 mm) % Passing 67 %

No. 4 sieve (4.75 mm) % Passing 50 %

No. 8 sieve (2.36 mm) % Passing 33 %

No. 10 sieve (2.0mm) % Passing 30 %

No. 16 sieve (1.18 mm) % Passing - %

No. 20 sieve (0.841 mm) % Passing - %

No. 30 sieve (0.600 mm) % Passing 20 %

No. 40 sieve (0.425 mm) % Passing 19 %

No. 50 sieve (0.300 mm) % Passing 14 %

No. 60 sieve (0.250 mm) % Passing - %

No. 80 sieve (0.177 mm) % Passing - %

No. 100 sieve (0.150 mm) % Passing 8 %

No. 200 sieve (0.075 mm) % Passing 5.3 %

AASHTO T11 (% finer than No. 200 sieve) N/A

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/7/2024

Unit of MeasureResult

Bulk Specific Gravity 2.748

Bulk SSD Specific Gravity 2.783

Apparent Specific Gravity 2.849

Absorption 1.29 %

Methods: T 84 - AASHTO Test Date: 8/2/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/5/2024

Version 1

Unit of MeasureResult

Bulk Specific Gravity 2.798

Methods: T 85 - AASHTO Test Date: 8/1/2024 Tested By: Jerrad IschVersion 1

All reported results apply to the sample as received.

Page 4 of 5Sample ID: W-24-0647-GS

Con tro lle d C

Bulk SSD Specific Gravity 2.819

Apparent Specific Gravity 2.858

Absorption 0.7 %

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/1/2024

Unit of MeasureResult

Average Sand Equivalent Value 76

Methods: AASHTO T 176 - Sand Equivalent Test Test Date: 8/1/2024 Tested By: Jerrad Isch

Comments:

Test Validated By: Jerrad Isch Validated Date: 8/1/2024

Version 1

Unit of MeasureResult

Liquid Limit From T 89 Not Run

Plastic Limit from T 90 Non-Plastic

Plasticity Index Not Applicable

Methods: AASHTO T 89 & T 90 - Atterberg Limits Test Date: 7/30/2024 Tested By: Rob Lange

Comments:

Test Validated By: Rob Lange Validated Date: 7/30/2024

Version 1

All reported results apply to the sample as received.

Page 5 of 5Sample ID: W-24-0647-GS

Con tro lle d C

Attachment 3 - Comparison of Testing Results to Material Quality Contract Requirements

Section 703.02 Coarse Aggregate for Concrete

Section 703.05 Subbase, Base, and Surface Course Aggregate

Section 703.16 Shotcrete Aggregate

Section 703.17 Granular Rock Backdrain

Section 704.08 Select Granular Backfill

Section 705.02 Riprap

Section 705.06 Rock for Rockeries

Section 705.08 Filter Rock

Aggregate Durability Index (Fine) ‐ AASHTO T210 88 35 min

Aggregate Durability Index (Course) ‐ AASHTO T210 90 35 min 50 min 52 min

Soundness of Aggregate (Coarse) ‐ AASHTO T104 ‐ % 0.1 12 max 15 max 12 max 12 max 12 max

Soundness of Aggregate (Fine) ‐ AASHTO T104 ‐ % 1 12 max 15 max 12 max 12 max 12 max

Accelerated Weathering ‐ D WSMO‐19 ‐ % 0 12 max

Apparent Specific Gravity ‐ AASHTO T84/T85 2.849 to 2.858 2.5 min 2.4 min 2.5 min 2.4 min

Absorption ‐AASHTO T84/T85 ‐ % 0.7 to 1.29 4 max 4 max 4 max 4 max

Los Angeles Abrasion ‐ AASHTO T96 ‐ % 25 40 max 35 max 40 max 50 max 50 max 50 max 50 max 50 max

Sand Equivalent Test ‐ AASHTO T176 76 75 min

Plasticity Index (Atterberg Limits) ‐ AASHTO T89/T90 Non Plastic 6 max

Notes

1) Section 703.02 and 703.05 materials require alkali‐silica reactivity testing

2) Processing will be required to meet material size, gradation, and fractured face requirements.

Test and Standard

Grab Sample Test Results

(Summit Quarry Andesite Rock)

Material Quality Contract Requirements

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