B08_Attachment_05_Drawing_NOCA_SVR_MP8_SOW_Attachment_G.pdf
PDF 186 KB Posted
- Attached to
- NOCA - 8 MILE RIPRAP Federal contract opportunity
- Solicitation number
- 140P8326Q0019
About this file
This is a technical drawing document for a federal construction project within the National Park Service. The document is Attachment 7, depicting a typical cross-sectional design for stabilization work on Stehekin Valley Road, Mile Post 8, located within the North Cascades National Park Complex under the Pacific West Regional Office. The drawing is dated February 4, 2026, and is presented at a scale of 1/8 inch equals 1 foot.
The section illustrates a 115-foot washout repair design that includes specific construction specifications across a 16-foot roadway width and 15-foot average slope. The layered construction sequence from top to bottom consists of an existing roadway, compacted crushed rock base, compacted pit-run rock, undisturbed subgrade, and geotextile filter fabric. The design incorporates machine-placed 3 and 4 man rock riprap with a keyed-in first course at the existing channel bottom. The slope is engineered to drain properly, with a 1:1 slope ratio and overhead water (OHW) considerations. The construction addresses erosion control and channel stabilization through the integration of riprap placement and geo-textile materials, designed to prevent future washout along this critical park infrastructure corridor.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| B08_Attachment_01_READ_ME_FIRST_-_FAQs.pdf | ||
| Sol_140P8326Q0019.pdf | ||
| B08_Attachment_03_Statement_of_Work_NOCA_352127_SVR_MP8_SOW_rev1.pdf | ||
| B08_Attachment_04_Photos_NOCA_SVR_MP8_SOW_Attachment_A-F.pdf | ||
| B08_Attachment_08_Technical_Info_Form-Past_Performance_Form.docx | DOCX document | |
| B08_Attachment_06_Wage_Determination_SAM.pdf | ||
| B08_Attachment_02_Solicitation_Terms_Provisions_Clauses.pdf | ||
| B08_Attachment_07_Price_Schedule_and_Forms_to_Submit_with_Quote.pdf |
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Text version
16'
ROADWAY
15'
AVERAGE
' A
VE
R
AG
E
EXISTING ROADWAY
COMPACTED CRUSHED
ROCK BASE
COMPACTED PIT-RUN ROCK
MACHINE PLACED 3 & 4
MAN ROCK RIPRAP
GEO TEXTILE
FILTER FABRIC
1:1
SLOPE
TO DRAIN
EXISTING BOTTOM
OF CHANNEL KEY-IN FIRST COURSE
OF RIPRAP
UNDISTURBED SUBGRADE
OHW
0 4' 8' 16' Scale: 1/8"=1'-0"
SECTION1
ATTACHMENT 7
NOTE: THIS IS A TYPICAL SECTION OVER THE 115'
LENGTH OF THE WASHOUT
AutoCAD SHX Text Checked
AutoCAD SHX Text
PACIFIC WEST REGIONAL OFFICE
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NATIONAL PARK SERVICE
AutoCAD SHX Text Park
AutoCAD SHX Text Area
AutoCAD SHX Text Project
AutoCAD SHX Text Feature
AutoCAD SHX Text Date
AutoCAD SHX Text By
AutoCAD SHX Text Scale
AutoCAD SHX Text Account
AutoCAD SHX Text Pkg.
AutoCAD SHX Text of
AutoCAD SHX Text Sheet
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NORTH CASCADES NATIONAL PARK COMPLEX
AutoCAD SHX Text
STEHEKIN VALLEY ROAD
AutoCAD SHX Text
STABILIZE STEHEKIN VALLEY ROAD MP 8
AutoCAD SHX Text
FEB 4, 2026
AutoCAD SHX Text 1/8" = 1'-0"
AutoCAD SHX Text
AutoCAD SHX Text
| Sheets and Views |
| RipRap-Layout1 |
File details come from the government source that posted it. Updated .