Attach10.1240LU26Q0010NinemileSoilsInvestigation.pdf
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- LOLO NATIONAL FOREST - Ninemile Water & Wastewater and St. Regis Wastewater Improvements
- Solicitation number
- 1240LU26Q0010
About this file
This document is a soils investigation report for the Ninemile Water and Wastewater Improvements project located at the Ninemile Ranger Station on the Lolo National Forest, managed by the United States Department of Agriculture Forest Service, Region 1. The investigation was conducted on April 2, 2024, by Dustin Farren (designer and drawer) and reviewed by Nate Kegel. The site plan and investigation drawings are prepared by an engineering firm located at 2501 Belt View Drive, Helena, MT 59601, with phone number (406)449-8627. This document represents a 75% submittal draft with archive number 423.
The soils investigation includes five soil pits excavated along the water main alignment at the project site. Soil Pit #1 contains 16 inches of topsoil with sandy, gravelly material including 6-8 inch cobbles, followed by 56 inches of moist clay down to 84 inches depth. Soil Pit #2 has 13 inches of topsoil with sandy, gravelly material including 6-14 inch cobbles, followed by 59 inches of moist clay. Soil Pit #3 contains only 6 inches of topsoil followed by rocky, dry compacted clay with 24-inch cobbles extending to 84 inches. Soil Pit #4 shows 13 inches of topsoil with sandy, gravelly 6-8 inch cobbles, followed by rocky, dry compacted clay with 24-inch cobbles from 13-66 inches depth, then less compacted, dry clay with reduced rock content from 66-84 inches. Soil Pit #5 has 36 inches of topsoil followed by compacted but moist clay with no rock encountered to 84 inches depth. Photographic documentation of each pit is provided to illustrate soil composition and excavation conditions.
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DRAWING TITLE
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ARCHIVE NO.DATE
PROJECT NO.
DRAWING SHEET NO.
DATENO.
REVISION / ISSUE
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United States Department of Agriculture Forest Service
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REGION 1
NINEMILE
WATER &
WASTEWATER
IMPROVEMENTS
LOLO NATIONAL FOREST
NINEMILE RANGER DISTRICT
SOILS INVESTIGATION
4/2/2024
DUSTIN FARREN
DUSTIN FARREN
NATE KEGEL
002 006
SOIL PIT # 1
TOPSOIL
SANDY,
GRAVELLY,
SOME 6"-8"
COBBLES
MOIST CLAY
EXISTING GRADE
16"
72"
84"
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ARCHIVE NO.DATE
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DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
4/2 /24
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REGION 1
NINEMILE
WATER &
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IMPROVEMENTS
LOLO NATIONAL FOREST
NINEMILE RANGER DISTRICT
SOILS INVESTIGATION
4/2/2024
DUSTIN FARREN
DUSTIN FARREN
NATE KEGEL
003 006
SOIL PIT # 2
TOPSOIL
SANDY,
GRAVELLY,
SOME 6"-14"
COBBLES
MOIST CLAY
EXISTING GRADE
13"
72"
84"
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DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
4/2 /24
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REGION 1
NINEMILE
WATER &
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IMPROVEMENTS
LOLO NATIONAL FOREST
NINEMILE RANGER DISTRICT
SOILS INVESTIGATION
4/2/2024
DUSTIN FARREN
DUSTIN FARREN
NATE KEGEL
004 006
SOIL PIT # 3
TOPSOIL
ROCKY, DRY
COMPACTED CLAY,
SOME 24" COBBLES
EXISTING GRADE
6"
84"
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DRAWING TITLE
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DRAWING SHEET NO.
DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
4/2 /24
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REGION 1
NINEMILE
WATER &
WASTEWATER
IMPROVEMENTS
LOLO NATIONAL FOREST
NINEMILE RANGER DISTRICT
SOILS INVESTIGATION
4/2/2024
DUSTIN FARREN
DUSTIN FARREN
NATE KEGEL
005 006
SOIL PIT # 4
TOPSOIL
SANDY,
GRAVELLY,
SOME 6"-8"
COBBLES
ROCKY, DRY,
COMPACTED
CLAY, SOME 24"
COBBLES
EXISTING GRADE
LESS COMPACTED,
STILL DRY CLAY,
LESS ROCK
13"
48"
66"
84"
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DRAWING TITLE
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PROJECT NO.
DRAWING SHEET NO.
DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
4/2 /24
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REGION 1
NINEMILE
WATER &
WASTEWATER
IMPROVEMENTS
LOLO NATIONAL FOREST
NINEMILE RANGER DISTRICT
SOILS INVESTIGATION
4/2/2024
DUSTIN FARREN
DUSTIN FARREN
NATE KEGEL
006 006
SOIL PIT # 5
TOPSOIL
COMPACTED BUT
MOIST CLAY, NO
ROCK ENCOUNTERED
EXISTING GRADE
36"
84"
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| Sheets and Views |
| Soil Investigation Drawing-COVERSHEET |
| OLE1 |
| Soil Investigation Drawing-PIT 1 |
| OLE1 |
| Soil Investigation Drawing-PIT 2 |
| OLE1 |
| Soil Investigation Drawing-PIT 3 |
| OLE1 |
| Soil Investigation Drawing-PIT 4 |
| OLE1 |
| Soil Investigation Drawing-PIT 5 |
| OLE1 |
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