Drawings - Antelope Flats WRP Hydro Restoration_0001.pdf

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NWRC-ANTELOPE FLATS EARTHWORK IN KLAMATH, CA
Solicitation number
140F0121Q0040
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Sol_140F0121Q0040_Amd_0003.pdf PDF
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RFI_Answers_0003.pdf PDF
Sol_140F0121Q0040_Amd_0002.pdf PDF
Sol_140F0121Q0040_Amd_0001.pdf PDF
ATTACHMENT 2 - PWS - CONSTRUCTION INSPECTION PLAN.pdf PDF
ATTACHMENT 1 - Wage Det. -OR20200071 - Feb. 12, 2021.pdf PDF
Sol_140F0121Q0040.pdf PDF
ATTACHMENT 2 - PWS for NWRC ANTELOPE FLATS EARTHWORK.pdf PDF
ATTACHMENT 2 - PWS - CONSTRUCTION DRAWINGS AND SPECIFICATIONS.pdf PDF
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%%ULOCATION MAP

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TITLE

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SHEET NO.

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%%UINDEX OF DRAWINGS

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OREGON

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PROJECT SITE

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CROSS-SECTION SHEET REFERENCE

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PROJECT SITE

AutoCAD SHX Text ATTENTION: Construction must be in conformance with these NRCS-approved Construction must be in conformance with these NRCS-approved drawings and specifications. No changes or modifications shall be made to these designs without full prior approval of the designer. Any material deviation from these drawings and specifications may constitute a breach of contract.

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T40S, R14E, SEC 33 KLAMATH COUNTY, OREGON

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%%UGENERAL NOTES

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PREPARED BY:

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KLAMATH COUNTY, OREGON

AutoCAD SHX Text ANTELOPE FLATS WRP Restoration of Hydrology

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UNITED STATES DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE

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1. Contour interval on all drawings is 1 foot. Contour interval on all drawings is 1 foot. 2. All stationing refers to centerline of construction and is the All stationing refers to centerline of construction and is the measured horizontal distance. 3. Slopes designated as 2:1, 1.5:1, et cetera, are the ratios of Slopes designated as 2:1, 1.5:1, et cetera, are the ratios of horizontal distance to vertical distance. 5. Dimensions are given in feet and tenths of a foot. Dimensions are given in feet and tenths of a foot. 7. Topography and cross section ground lines are based on Topography and cross section ground lines are based on survey work performed between 2014 and 2017. Projection: State Plane (2011) NAD83, Oregon South - International Feet. 8. All existing conditions are to be verified in the field prior to All existing conditions are to be verified in the field prior to construction and any adjustments to the drawings shall be made as directed by the Project Engineer. 9. Construction shall meet the requirements of OSHA. Actual Construction shall meet the requirements of OSHA. Actual slopes shall not exceed the slopes as indicated on drawings. 10. NRCS makes no representations as to the existence or NRCS makes no representations as to the existence or non-existence of utilities. It is the responsibility of land owners and operators to comply with the provisions of ORS 757.541 to 757.571. 11. The Contractor is required to attend a pre-construction The Contractor is required to attend a pre-construction meeting with the NRCS and/or NRCS representative. These drawings are subject to change per regulatory requirements.

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1. Cover Sheet Cover Sheet 2. Construction Notes Construction Notes 3. Existing Layout Existing Layout 4. Inventory of Infrastructure Inventory of Infrastructure 5. Proposed Restoration Proposed Restoration 6. Lost Creek - Plan View Lost Creek - Plan View 7. Lost Creek - Bend Reconstruction Lost Creek - Bend Reconstruction 8. Lost Creek - Bend Sections Lost Creek - Bend Sections 9. Antelope Creek - Plan View Antelope Creek - Plan View 10. Antelope Creek - Sections Antelope Creek - Sections 11. Southwest Levee - Details Southwest Levee - Details 12. Open Channel - Details Open Channel - Details 13. Ditch Plug - Details Ditch Plug - Details 14. Microtopography - Plan Microtopography - Plan 15. Microtopography - Details Microtopography - Details 16. Estimated QuantitiesEstimated Quantities

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COVER SHEET

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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%%UPLAN VIEW

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AutoCAD SHX Text Easement Boundary Point of Diversion (cert. 28681, 26884, 38248) Stream Alignment Spring

AutoCAD SHX Text PROJECT DESCRIPTION This project is designed to restore degraded wetland function to the Antelope Flats Wetlands Reserve Program (WRP) conservation easement by restoring the natural hydrology and wetland vegetation, to the extent practicable. The project includes the following restoration activities: 25 ditch plugs 29,160 ft ditch fill 10,000 ft of spoils berm removal 3800 ft of road removal 40 ac microtopography restored; 200 ac treatment area 12 reaches restored open channel including: o 1200 ft Southwest Levee removal 1200 ft Southwest Levee removal o 700 ft Antelope Creek Levee removal 700 ft Antelope Creek Levee removal o 550 ft Lost Creek Levee removal 550 ft Lost Creek Levee removal o 150 ft Lost Creek channel reconstruction150 ft Lost Creek channel reconstruction

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NORTHING

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EASTING

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ELEVATION

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SURVEY CONTROL POINTS

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NAME

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DESCRIPTION

AutoCAD SHX Text TBM 1 140000.64 4768169.06 4763.54 wooden hub 140000.64 4768169.06 4763.54 wooden hub 4768169.06 4763.54 wooden hub 4763.54 wooden hub wooden hub

AutoCAD SHX Text TBM 2 140004.25 4767865.92 4762.72 fence brace 140004.25 4767865.92 4762.72 fence brace 4767865.92 4762.72 fence brace 4762.72 fence brace fence brace

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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LEGEND

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TBM2

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%%UEXISTING INFRASTRUCTURE

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AutoCAD SHX Text Ditch Location of Previously Removed Culvert. Reference Only. No work required. (C) Access Road (R) Spoils Berm Earthen Levee Stream Alignment Easement Boundary

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INVENTORY OF INFRASTRUCTURE

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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%%ULEGEND

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%%UCONCEPTUAL RESTORATION

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AutoCAD SHX Text Microtopography Ditch Fill (F) Ditch Plug (P) Open Channel Restoration (X) Microtopography (M) Treatment Area Creek Corridor Easement Boundary

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%%ULEGEND

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PROPOSED RESTORATION

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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%%ULOST CREEK PLAN VIEW

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AutoCAD SHX Text Lost Creek Bend Reconstruction see sheets 7 & 8

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LOST CREEK PLAN VIEW

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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AutoCAD SHX Text R1: 3800 LF Levee Removal F1: 3800 LF Ditch Fill

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%%ULOST CREEK BEND PLAN VIEW

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AutoCAD SHX Text 550 LF Lost Creek Levee removal FG TOB leftbank = 4762' FG TOB rightbank = 4763'

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LOST CREEK BEND RECONSTRUCTION

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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AutoCAD SHX Text LOST CREEK BEND RECONSTRUCTION NOTES 1. For reconstruction of Lost Creek right For reconstruction of Lost Creek right bank, see TYPICAL EMBANKMENT CONSTRUCTION NOTES, sheet 1. 2. Finished grade. See RECONSTRUCTED Finished grade. See RECONSTRUCTED LOST CREEK - AVERAGE BEND DIMENSIONS, sheet 8. Reconstructed channel geometry shall blend with adjacent grade upstream and downstream of the 150 LF project reach. 3. Earthwork Volumes. See sheet 15 for Earthwork Volumes. See sheet 15 for estimated earthwork volumes.

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LOST CREEK LEVEE REMOVAL NOTES 1. Foundation preparation. Areas disturbed by removal of the Foundation preparation. Areas disturbed by removal of the Lost Creek Levee shall be mowed/mulched to remove all existing vegetation. Suitable existing topsoil shall be stripped to a depth of 6" and stockpiled adjacent to the work area, or as specified by the NRCS engineer or NRCS designated representative. Topsoil shall be reused and spread over Topsoil shall be reused and spread over disturbed areas. Excessive topsoil shall be disposed of onsite as specified during the pre-construction meeting. 2. Excavation. Approximately 550 LF of Lost Creek Levee will Excavation. Approximately 550 LF of Lost Creek Levee will be removed to restore floodplain topography on either side of the reconstructed channel. Slopes will daylight where existing grade matches design grade. Dimensions and elevations vary along the length of Lost Creek Levee - average dimensions are shown in Section C-C. Limits of excavation associated with removal of Lost Creek Levee will be flagged in the field by the NRCS engineer or NRCS designated representative. 3. Borrow material. Suitable material from removal of Lost Borrow material. Suitable material from removal of Lost Creek Levee may be used as borrow material for Open Channel locations X2-X4 including reconstruction of Lost Creek Bend, and Ditch Plugs P1-P5. 4. Earthwork Volumes. See sheet 15 for estimated earthwork Earthwork Volumes. See sheet 15 for estimated earthwork volumes.

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AutoCAD SHX Text %%USECTION B-B: RECONSTRUCTED LOST CREEK BEND sta 10+20

AutoCAD SHX Text %%USECTION C-C: LOST CREEK LEVEE sta. 0+50

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LOST CREEK BEND SECTIONS

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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%%UPROFILE A-A: RECONSTRUCTED LOST CREEK BEND CENTERLINE

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LB ELV = 4762.0'

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RB ELV = 4763.0'

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ELV = 4759.0'

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FG ELV = 4759.0'

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FG

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%%URECONSTRUCTED LOST CREEK

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AutoCAD SHX Text Reconstruct right bank of Lost Creek depth of fill varies, max. 4 ft. Material placed shall not exceed 8" lifts, with adequate compaction between lifts. Refer to "Typical Embankment Compaction" notes Sheet 2.

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ANTELOPE CREEK PLAN VIEW

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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%%UANTELOPE CREEK PLAN VIEW

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ANTELOPE CREEK SECTIONS

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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AutoCAD SHX Text %%USECTION D-D: ANTELOPE CREEK LEVEE sta 2+50

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ANTELOPE CREEK LEVEE REMOVAL NOTES 1. Foundation preparation. Areas disturbed by removal of the Antelope Creek Levee shall be mowed/mulched to remove all existing vegetation. Foundation preparation. Areas disturbed by removal of the Antelope Creek Levee shall be mowed/mulched to remove all existing vegetation. Suitable existing topsoil shall be stripped to a depth of 6" and stockpiled adjacent to the work area, or as specified by the NRCS engineer or NRCS designated representative. Topsoil shall be reused and spread over disturbed areas. Excessive topsoil shall be disposed of onsite as Topsoil shall be reused and spread over disturbed areas. Excessive topsoil shall be disposed of onsite as specified during the pre-construction meeting. 2. Excavation. Approximately 700 LF of Antelope Creek Levee will be removed to provide a continuation of the broad open channel flow corridor Excavation. Approximately 700 LF of Antelope Creek Levee will be removed to provide a continuation of the broad open channel flow corridor existing upstream of the levee. Cut slopes will daylight at the existing grade downstream of the levee. Dimensions and elevations vary along the length of Antelope Creek Levee - average dimensions are shown in Section D-D. Limits of excavation associated with removal of Antelope Creek Levee shall be flagged in the field. 3. Borrow material. Suitable material from removal of Antelope Creek Levee may be used as borrow material for construction of Ditch Plug P18 Borrow material. Suitable material from removal of Antelope Creek Levee may be used as borrow material for construction of Ditch Plug P18 and Ditch Fill F3 & F4. Ditches adjacent to Antelope Creek Levee are to be filled as needed, to achieve final grade consistent with adjacent wetland ground elevation. Refer to sheet 13. 4. Finished grade. Finished grade shall blend with adjacent grades upstream and downstream of the project reach. Finished grade. Finished grade shall blend with adjacent grades upstream and downstream of the project reach. 5. Revegetation. Topsoil shall be spread over all disturbed areas and vegetation established according to CS-OR-231 VEGETATION OF Revegetation. Topsoil shall be spread over all disturbed areas and vegetation established according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. 6. Earthwork volumes. See sheet 15 for estimated earthwork volumes. Earthwork volumes. See sheet 15 for estimated earthwork volumes.

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%%USOUTHWEST LEVEE PLAN VIEW

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SOUTHWEST DAM DETAILS

AutoCAD SHX Text Antelope Flats WRP Hydro Restoration

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

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RG, BB

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RS, MD

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AutoCAD SHX Text %%USECTION E-E: SOUTHWEST LEVEE sta 8+50

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AutoCAD SHX Text SOUTHWEST LEVEE REMOVAL NOTES 1. Foundation preparation. Areas disturbed by removal of the Antelope Creek Levee Foundation preparation. Areas disturbed by removal of the Antelope Creek Levee shall be mowed/mulched to remove all existing vegetation. Suitable existing topsoil shall be stripped to a depth of 6" and stockpiled adjacent to the work area, or as specified by the NRCS engineer or NRCS designated representative. Topsoil shall be reused and spread over disturbed areas. Excessive topsoil shall be disposed of onsite as specified during the pre-construction meeting. 2. Excavation. Approximately 1200 LF of Southwest Levee will be removed to Excavation. Approximately 1200 LF of Southwest Levee will be removed to provide a continuation of the broad open channel flow corridor existing upstream of the levee. Cut slopes will daylight at the existing grade downstream of the levee. Dimensions and elevations vary along the length of Southwest Levee - average dimensions are shown in Section E-E. 3. Borrow material. Suitable material from removal of the Southwest Levee may be Borrow material. Suitable material from removal of the Southwest Levee may be used as borrow material for Open Channel locations X5-10. Excess material shall be spoiled in the parallel ditch adjacent to the upstream Southwest Levee face or used as ditch fill for ditches F6-F14. 4. Finished grade. Finished grade shall blend with adjacent grades upstream and Finished grade. Finished grade shall blend with adjacent grades upstream and downstream of the project reach. 5. Revegetation. Topsoil shall be spread over all disturbed areas and vegetation Revegetation. Topsoil shall be spread over all disturbed areas and vegetation established according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. 6. Earthwork Volumes. See sheet 15 for estimated earthwork volumes. Earthwork Volumes. See sheet 15 for estimated earthwork volumes.

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OPEN CHANNEL DETAILS

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

AutoCAD SHX Text 01/2021

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RG, BB

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RS, MD

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AutoCAD SHX Text State Conservation Engineer

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AutoCAD SHX Text Antelope2020.dwg

AutoCAD SHX Text OPEN CHANNEL CONSTRUCTION NOTES 1. 12 sites of Open Channel will be restored as staked in 12 sites of Open Channel will be restored as staked in the field by NRCS: (4) TYPE 1. Existing ditch inlet/outlet interrupts Lost Creek flow corridor; streambank will be restored with construction of a ditch plug. (5) TYPE 2. Existing channel-spanning spoils berm constructed across Lost Creek with at least one adjacent ditch obstructs open channel flow; stream corridor will be restored by removing fill from stream channel, removing spoils berm from corridor floodplain, and restoring streambank with construction of one or more ditch plugs. (3) CUSTOM. Lost Creek Bend Reconstruction, sheets 6, 7, & 8; Antelope Creek Levee Removal, sheets 9 & 10; Southwest Levee Removal, sheet 11. 2. See DITCH PLUG CONSTRUCTION NOTES for details of See DITCH PLUG CONSTRUCTION NOTES for details of foundation preparation; borrow material, placement and compaction; and revegetation - sheet 13. 3. Finished grade. Final grade shall restore open channel Finished grade. Final grade shall restore open channel geometry through the project reach within 50 LF of top of bank, either side. Restored side slopes, channel alignment, and bed slopes shall blend with adjacent channel geometry upstream and downstream of project reaches. 4. Earthwork volumes. See sheet 16 for estimated Earthwork volumes. See sheet 16 for estimated earthwork volumes.

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%%USECTION F-F: TYPE 1 OPEN CHANNEL

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%%USECTION G-G: TYPE 2 OPEN CHANNEL

AutoCAD SHX Text Cut existing channel-spanning berm, A cut

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%%UTYPE 2 OPEN CHANNEL RESTORATION

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%%UTYPE 1 OPEN CHANNEL RESTORATION

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DITCH PLUG DETAILS

AutoCAD SHX Text Antelope Flats WRP Hydro Restoration

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

AutoCAD SHX Text 01/2021

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RG, BB

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RS, MD

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%%USECTION: TYPICAL DITCH PLUG

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%%UPROFILE: TYPICAL DITCH PLUG

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AutoCAD SHX Text DITCH PLUG CONSTRUCTION NOTES 1. Foundation preparation. Areas disturbed by ditch plug construction shall be mowed/mulched to remove all existing vegetation. Existing topsoil shall be stripped to a Foundation preparation. Areas disturbed by ditch plug construction shall be mowed/mulched to remove all existing vegetation. Existing topsoil shall be stripped to a depth of 6" and stockpiled adjacent to the work area, or as specified by the NRCS engineer or NRCS designated representative. Topsoil shall be reused and spread over disturbed areas. Excessive topsoil shall be disposed of onsite as specified during the pre-construction meeting. Foundation surfaces shall be graded to remove surface irregularities and shall be scarified parallel to the axis of the fill or otherwise acceptably scored and loosened to a minimum depth of 2 inches. Foundation side slopes shall be graded to 1:1 or shallower to accommodate adequate compaction. 2. Borrow material. Ditch plugs shall be constructed of suitable borrow material. To the extent practicable, borrow material shall be sourced from removal of infrastructure Borrow material. Ditch plugs shall be constructed of suitable borrow material. To the extent practicable, borrow material shall be sourced from removal of infrastructure as shown on these drawings, including removal of spoils berms within proximity of the ditch plug site. Borrow material may also be sourced from excavation of microtopographic ponds, as identified and flagged in the field by NRCS. Fill materials shall contain no frozen soil, sod, brush, roots or other deleterious material. 3. Compaction. Refer to CS-OR-0.23 EARTHFILL. Compaction. Refer to CS-OR-0.23 EARTHFILL. Moisture content. Moisture content of earthfill shall be sufficient to obtain adequate compaction and a suitable bond between layers of placed material. Placement. Earthfill material for the construction of ditch plugs shall be placed parallel to the embankment axis in approximately uniform horizontal layers of not more than 8 inches in thickness prior to compaction. Compaction. Compaction shall be accomplished by 4 passes of deep-tread rubber-tired construction equipment over the entire surface of the placed layer, or approved equivalent. Care shall be taken to adequately compact the first lift of material against the prepared foundation, to ensure an effective bond between materials. 4. Final grade. The top surface of ditch plugs shall accommodate 6 inches of settlement and shall be crowned slightly to ensure effective drainage. Wing dikes Final grade. The top surface of ditch plugs shall accommodate 6 inches of settlement and shall be crowned slightly to ensure effective drainage. Wing dikes approximately 6 inch tall x 5 feet long shall extend from either side of the upstream ditch plug face, graded to divert flows from flanking the earthen embankment. Final grading shall blend with adjacent ground. 5. Revegetation. All disturbed areas shall be revegetated according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. Revegetation. All disturbed areas shall be revegetated according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. 6. Earthwork volumes. See sheet 15 for estimated earthwork volumes.Earthwork volumes. See sheet 15 for estimated earthwork volumes.

AutoCAD SHX Text DITCH FILL CONSTRUCTION NOTES 1. Foundation preparation. Areas disturbed by removal of the Foundation preparation. Areas disturbed by removal of the Antelope Creek Levee shall be mowed/mulched to remove all existing vegetation. 2. Borrow material. Removal of R1 North-South Road will Borrow material. Removal of R1 North-South Road will provide borrow material for ditch fill F1 & F2. Removal of Antelope Creek Levee will provide borrow material for ditch fill F3 & F4. Ditches shall be filled starting at the most downstream point and continued upstream. If the quantity of material removed from the North-South Road and Antelope Creek Levee is insufficient to completely fill the ditches F1-F4 the work will be terminated at a point determined by the NRCS engineer or NRCS designated representative. Borrow material used to fill ditches F5-F14 will be sourced from the adjacent side cast berm. Material shall be pushed back into the ditch and compacted per the standards in note 3 below. Ditches located within the footprint of a microtopographic pond shall only be filled to the bottom of the pond. 3. Compaction. Refer to CS-OR-0.23 EARTHFILL. Compaction. Refer to CS-OR-0.23 EARTHFILL. Moisture content. Moisture content of ditch fill shall be sufficient to obtain adequate compaction and a suitable bond between layers of placed material. Placement. Ditch fill may be pushed or placed in approximately uniform horizontal layers of not more than 12 inches in thickness prior to compaction. Compaction. Compaction of ditch fill shall be accomplished by using equipment which sufficiently compacts the fill material to the satisfaction of the NRCS engineer or NRCS designated representative. Compaction can be accomplished by a single pass of deep-tread rubber-tired construction equipment over the entire surface of the placed layer. Alternative equipment and methods can be used if adequate compaction can be demonstrated. Alternative methods and equipment should be submitted and approved at the time of the pre-construction meeting. 4. Final grade. The top surface of ditch fill shall accommodate Final grade. The top surface of ditch fill shall accommodate 6 inches of settlement and shall be crowned slightly to ensure effective drainage. Final grading shall blend with adjacent ground. 5. Revegetation. All disturbed areas shall be revegetated Revegetation. All disturbed areas shall be revegetated according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. 6. Earthwork volumes. See sheet 16 for estimated earthwork Earthwork volumes. See sheet 16 for estimated earthwork volumes.

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%%UCONCEPTUAL RESTORATION

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AutoCAD SHX Text Microtopography (M) Treatment Area Creek Corridor Easement Boundary Microtopgraphic Mound Microtopographic Pool

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%%ULEGEND

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PROPOSED MICROTOPOGRAPHY LAYOUT

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

AutoCAD SHX Text 01/2021

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RG, BB

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RS, MD

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NOTE: The location/size/layout of the microtopography will be staked out by NRCS or the NRCS designated representative.

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%%UMICROTOPOGRAPHY PLAN VIEW

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MICROTOPOGRAPHY DETAILS

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

AutoCAD SHX Text 01/2021

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RG, BB

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RS, MD

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%%USECTION H-H: TYPICAL MICROTOPOGRAPHIC MOUND

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%%USECTION H-H: TYPICAL MICROTOPOGRAPHIC POOL

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AutoCAD SHX Text MICROTOPOGRAPHY CONSTRUCTION NOTES 1. Approximately 40 acres of microtopography shall be restored over a total treatment area of 200 acres. Approximately 40 acres of microtopography shall be restored over a total treatment area of 200 acres. 2. Foundation preparation. Areas disturbed by construction of the microtopography shall be mowed/mulched to remove all existing Foundation preparation. Areas disturbed by construction of the microtopography shall be mowed/mulched to remove all existing vegetation. Existing topsoil shall be stripped to a depth of 6" and stockpiled adjacent to the work area, or as specified by the NRCS engineer or NRCS designated representative. Topsoil shall be reused and spread over disturbed areas. 3. Borrow material. To the extent practicable, earthfill for microtopographic mounds shall be sourced from removal of spoils berms, Borrow material. To the extent practicable, earthfill for microtopographic mounds shall be sourced from removal of spoils berms, and excavation of microtopographic pools. 4. Compaction. Refer to CS-OR-0.23 EARTHFILL. Compaction. Refer to CS-OR-0.23 EARTHFILL. Moisture content. Moisture content of mound earthfill shall be adequate to obtain sufficient compaction and a suitable bond between layers of placed material. Field measurement of moisture content can be done using the "Hand Test". See "Typical Embankment Construction Notes" Sheet 2, Note 3 for direction how to field test the moisture content of soils onsite. Placement. Mound earthfill may be pushed or placed in approximately uniform horizontal layers of not more than 12 inches in thickness. Compaction. Compaction of microtopography mounds shall be accomplished by using equipment which sufficiently compacts the fill material to the satisfaction of the NRCS engineer or NRCS designated representative. Compaction can be accomplished by tracking over the material. Alternative equipment and methods can be used if adequate compaction can be demonstrated. Alternative methods and equipment should be submitted and approved at the time of the pre-construction meeting. 5. Final grade. Final grade shall meet the following specifications: Microtopographic pools will be excavated to an average depth of 12 inches. Maximum pool depth shall not exceed 18 inches. Microtopographic mounds will be constructed to an average height of 12 inches. Maximum mound height shall not exceed 18 inches. Side slopes of microtopographic features shall be 10:1 as shown on these drawings. Final grading shall blend with adjacent ground. Microtopographic features shall be shaped per onsite reference features and as flagged by NRCS; average feature area = 0.5 acre. The distance between the toe of a constructed mound and the daylight of an excavated pool shall be a minimum of 30 feet. 5. Revegetation. Topsoil shall be spread over all disturbed areas and vegetation established according to CS-OR-231 VEGETATION OF Revegetation. Topsoil shall be spread over all disturbed areas and vegetation established according to CS-OR-231 VEGETATION OF CONSTRUCTION SITES. 6. Earthwork volumes. See sheet 16 for estimated earthwork volumes.Earthwork volumes. See sheet 16 for estimated earthwork volumes.

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AutoCAD SHX Text Quantities are estimates only, based on topographic survey data and design drawings. The Contractor shall check quantities before entering into a contract with the landowner or NRCS.

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ESTIMATED QUANTITIES

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JOB CLASS: IV, V PRACTICE STANDARD: 582, 657

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HIGH DESERT BASIN KLAMATH COUNTY

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RG, BB

AutoCAD SHX Text 01/2021

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RG BB

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RS, BB

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AutoCAD SHX Text State Conservation Engineer

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%%UTABLE 2. DITCH FILL

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%%UTABLE 5. DITCH PLUGS

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%%UTABLE 3. MICROTOPOGRAPHY

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%%UTABLE 1. LEVEE REMOVAL

%%UTABLE 4. OPEN CHANNEL RESTORATION

Sheets and Views
Antelope 2020-1 title
Antelope 2020-2 Notes
Antelope 2020-3 Existing Layout
Antelope 2020-4 Infrastructure Inventory
Antelope 2020-5 Proposed Restoration
Antelope 2020-6 Lost PLAN
Antelope 2020-7 Lost CHANNEL
Antelope 2020-8 Lost SECTIONS
Antelope 2020-9 Antelope PLAN
Antelope 2020-10 Antelope SECTIONS
Antelope 2020-11 SW Dam
Antelope 2020-12 Open Channel
Antelope 2020-13 Plug Typical
Antelope 2020-14 Microtopo_Plan
Antelope 2020-15 Microtopo
Antelope 2020-16 Materials
2021-02-18T09:17:15-0800
MOLLY DAWSON
2021-02-18T09:24:06-0800
MOLLY DAWSON
2021-02-18T09:27:11-0800
MOLLY DAWSON
2021-02-18T09:33:09-0800
MOLLY DAWSON
2021-02-18T09:38:41-0800
MOLLY DAWSON
2021-02-18T09:41:33-0800
MOLLY DAWSON
2021-02-18T09:52:47-0800
MOLLY DAWSON
2021-02-18T09:57:31-0800
MOLLY DAWSON
2021-02-18T10:01:58-0800
MOLLY DAWSON
2021-02-18T10:05:38-0800
MOLLY DAWSON
2021-02-18T10:12:58-0800
MOLLY DAWSON
2021-02-18T10:19:26-0800
MOLLY DAWSON
2021-02-18T10:25:17-0800
MOLLY DAWSON
2021-02-18T10:29:05-0800
MOLLY DAWSON
2021-02-18T10:37:55-0800
MOLLY DAWSON
2021-02-18T09:20:19-0800
MOLLY DAWSON

File details come from the government source that posted it. Updated .