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WSDOT MATERIALS LAB |
05/09/2026 |
Aggregate Source Approval Report |
| Owner: Washington Rock Quarries Inc. | Aggregate Source: PS-B-344 |
| Lessee: Washington Rock Quarries Inc. | Known as: King Creek Pit |
| Located in: W 1/2 W 1/2 Section 28 T18N R5E | County: Pierce |
Remarks:
Google Map: 47.017593271, -122.188209029
RS-B-357 is also located here at the same location for RCA.
For Quarry see QS-B-358
Mineral Agg. and Surfacing: Test Date: 05/13/2024 Expiration Date: 05/13/2029
| Absorption: 1.06 | Apparent Sp. G.: 2.772 | Bulk Sp. G. (SSD): 2.721 | Bulk Sp. G.: 2.692 |
| Deg: 81 | LA: 12 |
Remarks:
Currently Approved for:
| ATB | Ballast | BST Crushed Cover Stone |
| BST Crushed Screenings | Crushed Surfacing Base Course | Crushed Surfacing Key Stone |
| Crushed Surfacing Top Course | Gravel Backfill for Foundation Class A | HMA Other Courses |
| HMA Wearing Course | Maintenance Rock | Permeable Ballast |
Acceptance tests need to be performed as necessary.
Aggregates for Concrete: Test Date: 05/23/2024 Expiration Date: 05/23/2029
| ASR - 14 Day : 0.52 | ASR - One Year: 0.034 | CCA Absorption: 1.1 | CCA Sp.G: 2.65 |
| Deg: 89 | FCA Absorption: 1.96 | FCA Organics: 2 | FCA Sp. G: 2.585 |
| LA: 13 |
Remarks: Lafarge ASTM C-1293 (1-Year ASR) - Fine: 0.025, Coarse: 0.034 - Dated 4/28/2025, Expires 4/28/2030
Currently Approved for:
| Coarse Concrete Aggregates (Other as defined in 6-02.3(2)) |
| Fine Concrete Aggregates |
| Coarse Concrete Agg (Structural and Paving Concrete) |
Riprap, Quarry Spalls, Rock for Rock Wall, Erosion and Scour Protection: Test Date: 08/20/2025 Expiration Date: 08/20/2026
| Absorption: 0.8 | Apparent Sp. G.: 2.728 | Bulk Sp. G. (SSD): 2.691 | Bulk Sp. G.: 2.669 |
| Deg: 76 | LA: 14 |
Remarks: Riprap results was transferrerd to QS-B-358 -- P.See 03/19/2026
Currently Approved for:
| Quarry Spalls | Riprap | Rock for Erosion and Scour Protection |
| Rock for Rock Walls | Stone 9-27.3(6) |
Streambed Aggregates: Test Date: 05/13/2024 Expiration Date: 05/13/2029
| Absorption: 1.06 | Apparent Sp. G.: 2.772 | Bulk Sp. G. (SSD): 2.721 | Bulk Sp. G.: 2.692 |
| Deg: 81 | LA: 12 |
Remarks:
Currently Approved for:
| Streambed Aggregate |
Gravel Borrow for Structural Earth Walls: Test Date: 05/13/2024 Expiration Date: 05/13/2029
| Bulk Sp. G. (SSD): 2.721 | Deg: 81 | LA: 12 |
Remarks: For geosynthetic reinforcement, the gravel borrow shall be tested for pH prior to placement. For metallic reinforcement, the gravel borrow shall be tested for pH, resistivity, chlorides, and sulfates prior to placement. If the resistivity of the backfill material equals or exceeds 5,000 ohm-cm, the specified chloride and sulfate limits may be waived. If the aggregate source has variable quality, additional testing may be required. Contact the Regional Materials Engineer or the State Geotechnical Engineer for direction.
Currently Approved for:
| Gravel Borrow for Str Earth Walls |
ALL OTHER PIT RUN MATERIALS:
Project Engineer may request preliminary samples but Aggregate Source Approval is not required.
AGGREGATE MATERIALS NOT REQUIRING ASA APPROVAL :
Aggregate for Gravel Base 9-03.10
Gravel Backfill for Foundation Class B 9-03.12(1)B
Gravel Backfill for Walls 9-03.12(2)
Gravel Backfill for Pipe Zone Bedding 9-03.12(3)
Gravel Backfill for Drains 9-03.12(4)
Gravel Backfill for Drywells 9-03.12(5)
Backfill for Sand Drains 9-03.13
Sand Drainage Blanket 9-03.13(1)
Gravel Borrow 9-03.14(1)
Select Borrow 9-03.14(2)
Common Borrow 9-03.14(3)
Native Material for Trench Backfill 9-03.15
Foundation Material Class A and B 9-03.17
Foundation Material Class C 9-03.18
Bank Run Gravel for Trench Backfill 9-03.19
Commercial Concrete Aggregate 6-02.3(2)B