Amendment 0001 - NP CHOH 206(1) 913(1) ETC.pdf

(x)

693C7323B000006 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

ASHBURN VA 20147

ATTN: Construction

693C73

SUITE E2-3-300

QUANTUM PARK, 22001 LOUDOUN COUNTY PKWY

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

ASHBURN VA 20147

ATTN: Acquisitions

693C73

SUITE E2-3-300

QUANTUM PARK, 22001 LOUDOUN COUNTY PKWY

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

See Block 1402/09/20230001

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

01/20/2023

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Project NP CHOH 206(1) 913(1) ETC

The purpose of this Amendment is to:

1) Provide pre-bid meeting minutes and the PowerPoint presentation.

2) Provide an additional geotechnical report that includes soil boring data for the Culvert

82 site.

3) Respond to bidder questions.

4) The bid opening date of February 21, 2023, at 2:00 p.m. EST remains unchanged.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Amendment 0001

Info Page 1 of 4

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL HIGHWAY ADMINISTRATION

EASTERN FEDERAL LANDS HIGHWAY DIVISION

Amendment No. 0001

Project NP CHOH 206(1), 913(1), ETC.

Chesapeake and Ohio Canal National Historical Park

Solicitation: 693C73-23-B-000006

The purpose of this Amendment is to:

1) Provide pre-bid meeting minutes and the PowerPoint presentation.

2) Provide an additional geotechnical report that includes soil boring data for the Culvert

82 site.

3) Respond to bidder questions.

4) The bid opening date of February 21, 2023, at 2:00 p.m. EST remains unchanged.

Solicitation Changes

1) Please see attached for the pre-bid meeting government PowerPoint presentation.

Pre-bid meeting minutes:

The pre-bid meeting for the project was conducted virtually on January 30, 2023, starting at 9:00 am EST and ending at approximately 9:35 am. The government shared a power point presentation that discussed high level information on the project. For the full information, see project documents.

The pre-bid meeting was followed by the Culvert 82 site visit starting at 12 pm (only this site was accompanied since there is a 2.6 mile walk from the public parking without government opening the gate). The only question that asked during this visit was the access for the Culvert 82 site and the hauling restrictions on the existing gravel trail (tow path). The tow path will be open to the public during the construction. The solicitation already includes the requirements to provide the load ratings for each culvert on the hauling path to the site and to protect the culverts if needed during the hauling (please see Special Contract Requirements (SCRs) (J-pages) of the solicitation page J-3/J-4, Subsection 104.05). Culvert protection can consist of steel plates or timber matting.

Field review participants were as follows:

Government:

• Susannah Noppenberger, Civil Engineering, Chesapeake and Ohio National Park

• Joseph Fabis, Construction Operations Engineer (FHWA-EFLHD)

• Yanina Kirtley, Design Project Manager (FHWA-EFLHD)

Info Page 2 of 4

Contractor Personnel:

• Pedro Astudillo, RBA Engineering International, PLLC.

• William (Bill) Potempa, Terra Site Constructors, LLC.

• Brad Gribble, Maverick Construction

• Michael Strube, HMF Paving Contractors, Inc.

• Daniel Strube, HMF Paving Contractors, Inc.

2) Add an additional geotechnical report with soil boring data for the Culvert 82 site.

Disclosure for the report is as follows:

• The DMY Engineering Consultants, Inc. (DMY) report does not provide coordinates for the boring logs. Follow the government’s geotechnical report (dated February

2022) for the design recommendations. The DMY report is provided for the soil boring data information.

• The government estimated Google Earth coordinates based on the boring location plan presented on the PDF pg.11 of the DMY report.

• The DMY report provides elevations for borings B-1 and B-2 as 253 ft and 254 ft

(PDF pg. 15-16), respectively. When estimated coordinates are placed in the government survey, the ground surface elevation is approximately (~) 233 ft.

Furthermore, based on The National Map (TNM) Elevation USGS webpage, the ground surface elevation for the estimated coordinates is ~ 235 ft.

• For the purpose of design, the government considered the ground surface elevation for both borings B-1 and B-2 as 235 ft.

• The DMY report did not consider scour in their design. The DMY report performed

Allowable Strength Design (ASD) footing design instead of Load and Resistance

Factor Design (LRFD) as required by the government.

• The government recommended a system of micropiles to support the new bridge based on: LRFD design, scour, and the subsurface profile encountered in DMY borings while offsetting the ground surface elevation as noted above.

3) Responses to bidder questions:

Question: What is the formal process for submitting questions?

Response: Per the instructions provided in the solicitation, all questions should be submitted via email to EFLHD.Contracts@dot.gov. Questions submitted within a week of the project bid opening date might not get answered in time for you to incorporate the answers into your bid.

Question: Will there be an organized site meeting?

Response: Per the instructions provided in Section E of the solicitation, an organized virtual pre-bid meeting was held on January 30, 2023, at 9 am EST. An organized site visit was held at only the Culvert 82 location on January 30, 2023, at 12 pm EST. If necessary, individual site visits may also be arranged during normal duty hours by contacting one of the two points of contact provided in Section E of the solicitation (specifically on page E-2). However, these site visits will not be accompanied since all the sites are open to the public.

Question: (Are there on site) utilities available for job site trailers?

Response: The government does not have any available utilities for the Contractor use within the

Info Page 3 of 4 government Right Of Way (ROW). The Contractor is expected to find commercial locations for job site trailers or field offices.

Question: Access routes and allowed truck, equipment, crane weights to both sides of the bridges will weigh heavily on project costs. It will be difficult to accurately bid not knowing allowed truck weights or heavy equipment weights and corresponding access routes until after the bid award when formal access plans are approved. It would be good to have at least a general estimate on what loads can pass and routes prior to bidding. Low ground pressure equipment etc.

Especially site 82.

Response: The solicitation already includes the existing National Park Service (NPS) owned road hauling load limits and the requirements to provide the load ratings for each bridge or culvert on the hauling path to the site(s) and to protect the culverts if needed during the hauling

(see Special Contract Requirements (SCRs) (J-pages) of the solicitation page J-3/J-4, Subsection

104.05). Lock 25 box culvert inspection report was provided for the contractor use. Culvert protection can consist of steel plates or timber matting. The tow path hauling limits are normally

15 tons, however, if the contractor can provide the necessary calculations showing how the existing culverts on the towpath will be protected with additional proposed loads, this may be approved by the CO.

Question: What portion of the access roads are considered NPS roads and, therefore, subject to lower weight limits than Maryland allows for dump service trucks and concrete trucks?

Response: There are some ROW limits shown on sheet A12 of the plans. If necessary, general extent of NPS boundaries are available to view online at NPS - Land Resources Division

Boundary and Tract Data Service - Overview (arcgis.com).

Question: It is going to be hard to find a PE willing to guarantee that a certain weight can cross a structure especially if it is older.

Response: This is a contract requirement and will not change.

Question: Will the sign in sheet for the pre-construction (pre-bid) meeting be posted or made available?

Response: Yes, the sign in sheet is made available as part of the pre-bid meeting minutes and is posted as part of this amendment (also see the included PowerPoint presentation presented by the government at the pre-bid meeting).

Question: Page J-14 of the Solicitation has the note, "157.09 Water Crossings. Construct temporary water crossings as shown in the plans where construction vehicles and equipment cross a live waterway." Culvert 82 has a crossing south of the bridge illustrated, but no apparent crossing locations for equipment are shown for the other bridges. Is a water crossing allowed at

Lock 25, Dargan, and Fifteen Mile if a plan is provided for protecting the channel?

Response: Per Special Contract Requirements (SCRs) (J pages), Page J-14, Subsection 157.09, second paragraph: “Do not allow construction vehicles or equipment in live waterways.” It is strongly advised that offerors visit the project sites. Lock 25 site will not allow in water work in the canal and there will need to be a debris shield during the construction to prevent anything falling in the water. Fifteen Mile Creek bridge and Dargan Bend bridge normally do not have water in the channel and the contractor will be able to cross the canal within the Limits Of https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.arcgis.com%2Fhome%2Fitem.html%3Fid%3Dc8d60ffcbf5c4030a17762fe10e81c6a&data=05%7C01%7CYanina.Kirtley%40dot.gov%7C9548d56e81ee45b98bc808db05520062%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C638109621978774791%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BXVuOU22aX6eckaOeXjZzocIthKjG9dGLRDmr2e8ScY%3D&reserved=0 https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.arcgis.com%2Fhome%2Fitem.html%3Fid%3Dc8d60ffcbf5c4030a17762fe10e81c6a&data=05%7C01%7CYanina.Kirtley%40dot.gov%7C9548d56e81ee45b98bc808db05520062%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C638109621978774791%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BXVuOU22aX6eckaOeXjZzocIthKjG9dGLRDmr2e8ScY%3D&reserved=0

Info Page 4 of 4

Disturbance (LOD) shown in the Erosion and Sediment Control Plans (M sheets).

Question: Page J-35 of the Solicitation says, "Locate the Government field office within 15 miles of the project site". However, on page B-4, line item A0960, there are only 2 field offices listed for the 3 sites that are greater than 15 miles apart. Will 3 Offices be required?

Response: See page J-35 of the solicitation, Subsection 637.02, first sentence of the second paragraph: “For Schedule A, provide one physical field office for Lock 25, New Culvert 82, and

Dargan Bridges, and a second physical field office for the Fifteen Mile Creek Bridge.“ Two (2) field offices will be required. One of these will need to be 15 miles from either Culvert 82, Dargan Bend, or Lock 25 sites, and the second will need to be within 15 miles of the Fifteen

Mile Creek bridge.

Question: After looking over the Geotech report, I don't see the location map and bore log for culvert 82, but on page 129 of the pdf, it looks like at least 2 bores were performed. Is there additional information available for the bores performed on Culvert 82?

Response: An additional geotechnical report with the soil boring data for Culvert 82 was added as part of this amendment.

Project NP CHOH 206(1), 913(1), etc.

Three Bridge Replacements, New

Pedestrian Bridge, Box Culvert Repair Pre-Bid Meeting Presentation

January 30, 2023

Project Overview Schedule A (Base Contract):

• 15-Mile Creek Bridge

Replacement

• Dargan Bend Bridge Replacement

• Lock 25 Bridge Replacement &

Box Culvert Repairs

Schedule B (Option 1):

• Culvert 82 Bridge Construction- to be awarded within 90 days of Schedule A (see B pages)

Contract Type: Firm Fixed Price

(FFP)

• Open to all Small Businesses

NEPA/Permits

CE provided in advertisement documents SWM Concept Approval:

• Dargan, Lock 25 and 15 Mile Creek- received 7/22/2022.

• Culvert 82- received 11/9/2022.

ESC approvals

• All sites – received 12/21/2022, expire 12/20/2025.

W&W, 404

• 15 Mile Creek, Dargan – received 9/8/2022, expire 9/8/2027.

• Culvert 82- received 9/15/2022, expire 9/15/2027.

• Lock 25- received 10/27/2022, expire 10/27/2027.

Pre-bid site visits and Questions

• All sites are open to public.

• Culvert 82 site requires a 2.6 mile walk to get to the site. An accompanied field visit will be at 12 pm only today for Culvert 82, the park will open the gate and we will drive. Participants will meet at Brunswick boat ramp parking lot at 12 pm at 39.311118, -77.630564.

• Need names and companies of participants of the 12 pm field review. Roll call.

• Questions-Please submit to EFLHD.Contracts@dot.gov mailto:EFLHD.Contracts@dot.gov

15-Mile Creek Bridge Replacement

Scope:

Remove existing bridge and replace with new abutments (micropiles) and super structure.

Location- Alleghany County, MD:

https://goo.gl/maps/hksjagwHZ9bjZw3N8 https://goo.gl/maps/hksjagwHZ9bjZw3N8

15-Mile Creek Bridge Replacement

• Close bridge to traffic

• Area has campgrounds

• Use mulching to detour tow path users

• Proposed bridge has timber deck, 42” railing, steel girders (match current profile)

• Tunnel has limited clearance

Dargan Bend Bridge - Replace

Scope:

Replace bridge with new including micropile abutments and super structure.

Location - Washington County, MD:

https://goo.gl/maps/JJDdeFQyarVNPbJ89 https://goo.gl/maps/JJDdeFQyarVNPbJ89

Dargan Bend Bridge Replacement

• Close bridge and part of parking lot

• Keep open access to restrooms. Use part of parking for staging

• Use mulching to detour tow path users

• Proposed bridge has timber deck, 42” railing, steel girders (match current profile)

Culvert 82 New Pedestrian Bridge (Schedule B)

Scope:

Construct new bridge, remove low water crossing/pedestrian detour, repair scoured towpath and replace damaged drainage pipe through the towpath.

Location - Frederick County, MD:

https://goo.gl/maps/WaYEkAHMorAEjTix9 https://goo.gl/maps/WaYEkAHMorAEjTix9

• Access site from west, protect existing culverts on the towpath

• See Staging and Access Pad Locations

• Proposed bridge: timber deck, steel truss, 115’ long

• Minimize excavation

• New 18” RCP pipe at east approach

Lock 25 Bridge Replacement & Box Culvert Repairs

Scope:

• Replace existing bridge with longer bridge – new micropile abutments, do not disturb masonry canal walls

• Box Culvert- replace damaged guardrail, repair stone masonry walls

• Location – Montgomery Co, MD:

https://goo.gl/maps/hkTZq4BfsbyDoSCV7

Scope:

• Replace existing bridge with longer bridge – new micropile abutments, do not disturb masonry canal walls

• Box Culvert- replace damaged guardrail, repair stone masonry walls

• Location – Montgomery County, MD:

Scope:

• Replace existing bridge with longer bridge – new micropile abutments, do not disturb masonry canal walls

• Box Culvert- replace damaged guardrail, repair stone masonry walls

• Location – Montgomery County, MD:

Special Project Requirements

Lock 25 bridge (plans)

• R03 – return existing temporary bridge to the park. NPS will pick up the bridge from the site.

• R04 – protect historic abutments (canal walls).

Culvert 82 Existing Mapping was obtained from Lidar supplemented by additional ground survey.

Special Contract Requirements (SCRs) (J pages)

1. Page J-4, 107.02:

• Notify the CO 14 days prior to excavation (Lock 25). (Also See

Section 108.)

• Tree Cutting, trimming and removal- supervised by ISA Certified

Arborist.

• Flag trees to be removed for CO’s approval.

2. Page J-5, 107.11: do not drive faster than 15 mph on the tow path.

(J pages) (cont’d)

Page J-6, 108.01:

• no work on 15 Mile Creek Bridge until 9/6/23.

a) No work National Holidays & weekends (7 p.m. Fri. - 5 a.m.

Mon.).

c) No tree cutting June 1- July 31.

d) No in-stream work at 15 Mile Bridge or at Culvert 82 Mar. 1 - Jun. 15.

• Concurrent work is allowed at all sites.

1. Page J-13, 156.04:

• All sites can be closed during construction.

• Reopen within 24 hours of completing work.

• Notify the Government 30 days prior to closing the sites.

• Allow access to NPS personnel and vehicles at all times.

2. Pages J-13 and J-14, 156.07(d):

• See staging area locations.

1. Page J-14, 156.08:

• Nighttime is from 7 pm to 5 am.

• Night work is permitted at Dargan and Culvert 82 locations.

• Night work is permitted at Lock 25 and 15 Mile sites Dec. 1- Apr.

30 only.

• Design and seek approval for a lighting plan for nighttime work.

1. Page J-15-

• 203.03: Salvage the existing temporary crossing at Culvert

82 on site.

• 203.04(b): Work at Lock 25 bridge requires a debris shield so that debris does not fall into canal.

2. Page J-16, 203.05(b) and 203.05(c)- burying and burning on site is prohibited. Remove all waste from the project.

1. Page J-16, Section 302: Top 2 inches of towpath surface at approaches Culvert 82 is to be #10 AASHTO stone.

2. Page J-25, Section 555: Design the steel bridge for Culvert 82 site.

3. Page J-28, Section 557 (also see FP-14):

• Provide a professional engineer & additional staff on site for micropile installation and testing with resumes for work with 5 micropile projects in the last 5 years.

• See this Section for submittals.

1. Page J-30, Section 620: See this Section for historical stone masonry repair requirements at Lock 25 box culvert.

2. Pages J-31 and J-32, Section 625: Use MDE approved seed mix and wood chip mulch.

3. Page J-32, Section 629: Use only biodegradable rolled erosion control products.

4. Page J-35, Section 637: Provide 2 separate physical Field Offices for Schedule A- 1st is for Lock 25, Dargan and Culvert 82 sites, 2nd is for 15 Mile creek site. Maintain these for the duration of the work at each site.