A07_04_20200821_Structural DrawingsRev3_0007.pdf

PDF 2 MB Posted Aug 21, 2020

Attached to: CHOH-151201, Reconstruct/Stabilize Historic Stone Federal contract opportunity
Solicitation number: 140P2020R0079
Issued by: Department of the Interior National Park Service National Office

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Written by GovTribe AI · Dec 27, 2023

This document package includes structural drawings and specifications for the reconstruction and stabilization of historic stone walls and a towpath along the Chesapeake and Ohio Canal National Historical Park between McMahons Mill and Lock 42. The work involves reconstructing sections of existing stone walls, extending walls, and stabilizing loose or failing sections. Materials required include salvaged and new stone for the walls, geotextile fabric, soil fill, and #57 stone for backfill. The drawings provide construction details, notes, a wall treatment schedule, and specifications for materials, construction methods, surveying, shop drawings, and testing.

The related federal contract opportunity is solicitation number 140P2020R0079 issued by the National Park Service for the work outlined in the drawings and specifications under project number CHOH-151201. The contractor will be responsible for verifying dimensions of existing walls, submitting surveys and shop drawings, and complying with all notes and specifications for reconstructing and stabilizing the historic stone walls and towpath.

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Other files for this federal contract opportunity

Other files attached to CHOH-151201, Reconstruct/Stabilize Historic Stone, newest first.
File	Type	Posted
A07_05_20200821_Section B_Contract Price Schedule_0007.pdf	PDF	Aug 21, 2020
A07_01 Questions and Answers Round 4 Final_0007.pdf	PDF	Aug 21, 2020
A07_03_20200821_SECTION 044300 - STONE MASONRY_0007.pdf	PDF	Aug 21, 2020
Sol_140P2020R0079_Amd_0007.pdf	PDF	Aug 21, 2020
A07_02_20200821_SECTION 01 27 00 DEFINITION OF CONTRACT LINE ITEMS_0007.pdf	PDF	Aug 21, 2020
Sol_140P2020R0079_Amd_0006.pdf	PDF	Aug 20, 2020
Sol_140P2020R0079_Amd_0005.pdf	PDF	Aug 13, 2020
2020_0811 151201 - C2.01a DEMO & ES Ext_A04_03_0004.pdf	PDF	Aug 13, 2020
20200812 MDE_USACE Authorization_A04_02_0004.pdf	PDF	Aug 13, 2020
QA Round 3 QA_FINAL_A04_01_0004.pdf	PDF	Aug 13, 2020
Sol_140P2020R0079_Amd_0004.pdf	PDF	Aug 13, 2020
140P2020R0079 Amend 04_0004.pdf	PDF	Aug 13, 2020
Sol_140P2020R0079_Amd_0003.pdf	PDF	Aug 10, 2020
A03_03 - B08 BidBond_SF24-16d_0003.pdf	PDF	Aug 10, 2020
A03_04 - B08 - Solit_Equals_0003.doc	DOC document	Aug 10, 2020
A03_01 - 011100 - SUMMARY OF WORK_REV_0003.pdf	PDF	Aug 10, 2020
A03_02 - 151201 CHOH ALL FINAL CD-Drawings - REV2_0003.pdf	PDF	Aug 10, 2020
A03_05 - CHOH 151201 Questions and Answers_0003.pdf	PDF	Aug 10, 2020
A02_02 CHOH 151201 CD-ContractPriceSchedule FINAL_0002.xlsx	XLSX spreadsheet	Jul 30, 2020
A02_03 Contract Line Items FINAL_0002.pdf	PDF	Jul 30, 2020
A02_05_52.211-18 Variation Est Qty Clause_0002.pdf	PDF	Jul 30, 2020
Sol_140P2020R0079_Amd_0002.pdf	PDF	Jul 30, 2020
A02_07 151201 CHOH ALL FINAL CD-Drawings - REV1_0002.pdf	PDF	Jul 30, 2020
A02_06_CHOH 151201 Q and A Round 1 7-30-20_0002.pdf	PDF	Jul 30, 2020
A02_04_Section H Special Clause COVID_0002.pdf	PDF	Jul 30, 2020
A02_01 CHOH 151201 CD-ContractPriceSchedule FINAL_0002.pdf	PDF	Jul 30, 2020
Atch 03 PreProposal Presentation 071420_0001.pdf	PDF	Jul 16, 2020
Atch 04 PriceSchedVol2 Amend01_0001.xlsx	XLSX spreadsheet	Jul 16, 2020
Atch 02 CHOH 151241_PreBid_Agenda 7-14-20_0001.pdf	PDF	Jul 16, 2020
Sol_140P2020R0079_Amd_0001.pdf	PDF	Jul 16, 2020
Atch 01 CHOH 151201 Site Visit Attendees July 14 2020 1130 AM_0001.pdf	PDF	Jul 16, 2020
B08_3 - 151201 CHOH ALL FINAL CD-Drawings Part II.pdf	PDF	Jul 2, 2020
B08_5 - CHOH_151201-Reduced - 081632 Final Report-Enviroscan.pdf	PDF	Jul 2, 2020
B08_2 - 151201 CHOH ALL FINAL CD-Specs.pdf	PDF	Jul 2, 2020
B08_SF1442 140P2020R0079.pdf	PDF	Jul 2, 2020
B08_4 -1048516_Big_Slackwater_T_EF.pdf	PDF	Jul 2, 2020
B08_1 - 151201 CHOH ALL FINAL CD-Drawings Part I sig.pdf	PDF	Jul 2, 2020
B08_7.1 - Wage Determination MD20200022 Heavy 6-5-20.pdf	PDF	Jul 2, 2020
B08_13 - Atch13HazMatVol2.doc	DOC document	Jul 2, 2020
B08_7.2 - Wage Determination MD20200005 Dredging 1-3-20.pdf	PDF	Jul 2, 2020
B08_9 - Atch09ExpVol1.docx	DOCX document	Jul 2, 2020
B08_12 - Atch12GenRefsVol2.doc	DOC document	Jul 2, 2020
B08_10 - Atch10PastPerfVol1.docx	DOCX document	Jul 2, 2020
B08_6 - PriceSchedVol2.xlsx	XLSX spreadsheet	Jul 2, 2020
B08_11 - Atch11SubKPlanFormVol2.doc	DOC document	Jul 2, 2020

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NOTES

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EXTENT OF WALL TREATMENTS ARE APPROXIMATE AND SHOULD BE USED FOR PRICING ONLY.

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COORDINATE WALL AND TOWPATH ELEVATIONS WITH CIVIL DRAWINGS.

AutoCAD SHX Text COORDINATE DIMENSIONS WITH CIVIL DRAWINGS AND EXISTING CONDITIONS PRIOR TO STARTING CONSTRUCTION.

AutoCAD SHX Text SUBMIT SURVEY OF EXISTING CONDITIONS AND PROPOSED WALL TREATMENT SHOP DRAWINGS FOR REVIEW AND APPROVAL AT START OF CONSTRUCTION. IDENTIFY LOCATIONS OF DIFFERENT WALL TREATMENTS WITHIN SHOP DRAWINGS. SEE PROJECT SPECIFICATIONS FOR DETAILED REQUIREMENTS.

AutoCAD SHX Text GEOTECHNICAL ENGINEER TESTING IS REQUIRED TO CONFIRM BEARING CONDITIONS OF RETAINING WALLS. NOTIFY CONTRACTING OFFICER IF

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CONDITIONS VARY FROM THOSE LISTED IN TABLE ABOVE AND IN GENERAL NOTES ON S0.0.

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A/E FIRM - P15PC00037

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TITLE OF SHEET

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DRAWING NO.

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PMIS/PKG NO.

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SHEET

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PRIME/ARCH:

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GWWO, INC.

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BALTIMORE, MD

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LANDSCAPE:

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VHB

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WILLIAMSBURG, VA

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CIVIL:

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VHB

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WILLIAMSBURG, VA

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STRUCTURAL:

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SGH

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WASHINGTON D.C.

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MECHANICAL:

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ELECTRICAL:

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SUB SHEET NO.

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DESIGNED:

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CADD:

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TECH. REVIEW:

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DATE:

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6/25/2020 3:38:15 PM

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WALL TREATMENT

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SCHEDULE

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RECONSTRUCT/STABILIZE HISTORIC

AutoCAD SHX Text STONE WALL & TOWPATH McMAHON'S

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MILL TO LOCK 42 CHESAPEAKE & OHIO

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CANAL NHP

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AutoCAD SHX Text 133,700

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SGH

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SGH

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SGH

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CHOH-151201

AutoCAD SHX Text I:\DC\Projects\2019\190806.00-CHOH\Drawings\Working_Set

ARush Text Box 6.

ARush Text Box EXISTING MORTARED WALLS DO NOT EXTEND BELOW THE BASE FLOW ELEVATION. ASSUME LOWEST EXTENT OF MORTARED WALLS ARE APPROXIMATELY 6" ABOVE THE BASE FLOW ELEVATION AND THE REMAINDER OF THE EXISTING WALLS BELOW THIS ELEVATION ARE DRY-LAID WALLS.

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- Revision #3 - (NPS & SGH 8/21/20)

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#57 STONE

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(N) STONES. AVOID USE OF (N)

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STONES AT WALL FACE UNLESS

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OTHERWISE DIRECTED BY C.O.

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1, MIN.

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(E) BEDROCK SHELF VARIES, VIF

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EXTENT OF EXCAVATION TO

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RECONSTRUCT WALL

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GEOTEXTILE FABRIC TO SEPARATE

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SATISFACTORY SOIL FILL AND (E)

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FILL FROM #57 STONE

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(E) SUITABLE SOILS TO REMAIN

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SATISFACTORY SOIL FILL,

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SEE CIVIL DWGS &

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PROJECT SPECS

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(E) STONE WALL TO

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REMAIN WHERE TIGHTLY

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PACKED AND NOT EASILY

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REMOVABLE BY HAND

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MATCH (E) WALL

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BATTER, MIN = 1H:6V

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SEE CIVIL FOR SOIL SLOPE

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ABOVE WALL, MAX = 2H:1V

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WALL BATTER, MIN = SEE KEY ON THIS SHEET

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SEE SCHEDULE

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SEE SCHEDULE

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SEE SCHEDULE

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ABOVE T/WALL

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ABOVE T/WALL

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T/TOW PATH EL

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SEE CIVIL

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SEE SCHEDULE

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SEE SCHEDULE

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SEE SCHEDULE

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NOTES:

AutoCAD SHX Text CONTRACTOR MUST VERIFY HEIGHT AND WIDTH OF (E) WALL TO REMAIN AND SUBMIT THESE DIMENSIONS TO THE CONTRACTING OFFICER FOR

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APPROVAL PRIOR TO START OF WALL RECONSTRUCTION WORK.

AutoCAD SHX Text OVERLAP GEOTEXTILE AT TOP OF RECONSTRUCTED WALL A MINIMUM OF 2'-0" AND AT BOTTOM OF RECONSTRUCTED WALL A MINIMUM OF 2'-0" ABOVE THE WATER LINE. OVERLAP ADJACENT GEOTEXTILE SHEETS A MINIMUM OF 1'-0". USE STAPLES OR PINS AS NEEDED TO HOLD OVERLAPS IN PLACE DURING PLACEMENT OF STONE. ROLL GEOTEXTILE SHEETS IN DIRECTION PARALLEL TO RIVER FLOW. UPSTREAM GEOTEXTILE SHEETS SHALL ALWAYS OVERLAP DOWNSTREAM SHEETS. UP-SLOPE GEOTEXTILE SHEETS SHALL ALWAYS OVERLAP DOWN-SLOPE SHEETS. OVERLAPS ALONG THE LENGTH OF THE RIVER SHALL BE STAGGERED A MINIMUM OF 6'-0". CONTRACTOR MUST SUBMIT PROPOSED OVERLAP LOCATIONS TO THE CONTRACTING OFFICER FOR APPROVAL.

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SALVAGE AND REUSE (E)

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STONES AT WALL FACE

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APPROX. BASE FLOW

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SEE CIVIL FOR EL.

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SALVAGE AND REUSE (E) STONES

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AS COPING STONES UNLESS

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OTHERWISE DIRECTED BY C.O.

AutoCAD SHX Text BACKFILL W/REJECTED WALL STONE BELOW THE WATER LINE. PACK VOIDS TIGHT WITH HEART STONES IN SIMILAR MANNER TO WALL CONSTRUCTION

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SEE KEY ON THIS SHEET

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SEE KEY ON THIS SHEET

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SEE CIVIL FOR SEEDING AND STABILIZATION

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MIN.

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HEIGHT OF (E) WALL ASSUMED TO REMAIN, SEE KEY ON THIS SHEET

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MIN.

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MIN.

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1'-0" MIN. OVERLAP BETWEEN (E) STONES

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THAT ARE TO REMAIN IN PLACE AND (E)

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STONES THAT ARE TO BE RESET, TYP.

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1, MIN.

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T/TOW PATH EL.

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SEE CIVIL

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STATION AT END OF WALL

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RECONSTRUCTION SEGMENT

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SALVAGE AND REUSE

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(E) STONES AT WALL

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FACE AND AT TOP

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OF WALL

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SATISFACTORY SOIL FILL

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EXTENT OF EXCAVATION BEHIND EXISTING WALL TO COMPLETE RECONSTRUCTION WORK

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(E) STONE WALL TO REMAIN

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(E) BEDROCK SHELF VARIES, VIF

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NOTES

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ELEVATION SHOWN AT END OF WALL RECONSTRUCTION SEGMENT. SAME

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DETAILING APPLIES AT START OF WALL RECONSRTUCTION SEGMENT.

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RESET (E) STONES AND (N) STONES FOR WALL RECONSTRUCTION ARE TO BE

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TOOTHED IN TO MATCH ADJACENT (E) WALL.

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COPING STONE, TYP. AT T/WALL

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WALL TREATMENT LEGEND:

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(E) STONE: REMAIN IN PLACE

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(E) STONE: SALVAGE & REUSE

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STONE SHOWN GRAPHICALLY,

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(N) STONE

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(N) RECHINKING STONE

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(E) SILT & DEBRIS

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(E) SOIL TO REMAIN

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(E) BEDROCK

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(OR SUITABLE BEARING SUBSTRATE)

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(N) SATISFACTORY SOIL FILL, SEE CIVIL

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(N) PRE-WASHED, #57 STONE BACKFILL

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REJECTED WALL STONE BACKFILL

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SCALE OF FEET

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A/E FIRM - P15PC00037

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TITLE OF SHEET

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DRAWING NO.

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PMIS/PKG NO.

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SHEET

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PRIME/ARCH:

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GWWO, INC.

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BALTIMORE, MD

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LANDSCAPE:

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VHB

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WILLIAMSBURG, VA

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CIVIL:

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VHB

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WILLIAMSBURG, VA

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STRUCTURAL:

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SGH

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WASHINGTON D.C.

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MECHANICAL:

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ELECTRICAL:

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SUB SHEET NO.

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DESIGNED:

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CADD:

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TECH. REVIEW:

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DATE:

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SCALE A

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6/25/2020 3:39:57 PM

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WALL RECONSTRUCTION

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DETAILS

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RECONSTRUCT/STABILIZE HISTORIC

AutoCAD SHX Text STONE WALL & TOWPATH McMAHON'S

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MILL TO LOCK 42 CHESAPEAKE & OHIO

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CANAL NHP

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AutoCAD SHX Text 133,700

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CHOH-151201

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SGH

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SGH

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SGH

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SCALE A

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TYPICAL WALL RECONSTRUCTION SECTION

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SCALE A

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TYPICAL INTERFACE BETWEEN

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RECONSTRUCTED STONE WALL AND EXISTING

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STONE WALL TO REMAIN

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NO BATTER

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TYPE

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MAX. WALL HEIGHT

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MAX. HEIGHT OF SOIL ABOVE T/WALL

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BACK BATTER

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HEIGHT OF (E) WALL ASSUMED TO REMAIN

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WIDTH OF (E) WALL ASSUMED TO REMAIN

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WALL RECONSTRUCTION KEY

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- Revision #3 - (NPS & SGH 8/21/20)

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- Revision #2 - (NPS 8/3/20) jreed Polygon jreed Text Box

OR OTHER FREE DRAINING MATERIAL BENEATH WATER (AS DETAILED BELOW)

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