Solicitation - W912WJ25QA064.pdf

REQUEST FOR QUOTATION

(THIS IS NOT AN ORDER)

THIS RFQ IS IS NOT A SMALL BUSINESS SET-ASIDE

15. DATE OF QUOTATION

16. SIGNER

a. NAME (Type or print)

c. TITLE (Type or print)

b. TELEPHONE

AREA CODE

NUMBER

STANDARD FORM 18 (REV. 6-95)

Prescribed by GSA-FAR (48 CFR) 53.215-1(a)

AUTHORIZED FOR LOCAL REPRODUCTION

Previous edition not usable

8. TO:

b. COMPANYa. NAME

c. STREET ADDRESS

d. CITY e. STATE f. ZIP CODE

9. DESTINATION

a. NAME OF CONSIGNEE

b. STREET ADDRESS

c. CITY

d. STATE e. ZIP CODE

7. DELIVERY

FOB DESTINATION

OTHER

(See Schedule)

10. PLEASE FURNISH QUOTATIONS TO THE

ISSUING OFFICE IN BLOCK 5a ON OR BEFORE CLOSE OF BUSINESS (Date)

IMPORTANT: This is a request for information and quotations furnished are not offers. If you are unable to quote, please so indicate on this form and return it to the address in Block 5a. This request does not commit the Government to pay any costs incurred in the preparation of the submission of this quotation or to contract for supplies or service. Supplies are of domestic origin unless otherwise indicated by quoter. Any representations and/or certifications attached to this Request for Quotation must be completed by the quoter.

11. SCHEDULE (Include applicable Federal, State and local taxes)

ITEM NO.

(a)

SUPPLIES/ SERVICES

(b)

QUANTITY

(c)

UNIT

(d)

UNIT PRICE

(e)

AMOUNT

(f)

12. DISCOUNT FOR PROMPT PAYMENT

a. 10 CALENDAR DAYS (%) b. 20 CALENDAR DAYS (%) c. 30 CALENDAR DAYS (%) d. CALENDAR DAYS

NUMBER PERCENTAGE

NOTE: Additional provisions and representations are are not attached.

13. NAME AND ADDRESS OF QUOTER

a. NAME OF QUOTER

b. STREET ADDRESS

c. COUNTY

d. CITY e. STATE f. ZIP CODE

14. SIGNATURE OF PERSON AUTHORIZED TO

SIGN QUOTATION

PAGE OF PAGES

1. REQUEST NO. 2. DATE ISSUED 3. REQUISITION/PURCHASE REQUEST NO. 4. CERT. FOR NAT. DEF.

UNDER BDSA REG. 2

AND/OR DMS REG. 1

RATING

5a. ISSUED BY 6. DELIVER BY (Date)

5b. FOR INFORMATION CALL (NO COLLECT CALLS)

NAME TELEPHONE NUMBER

AREA CODE NUMBER

1 41

W912WJ25QA064 17 JUL 2025

W2SD ENDIST NEW ENGLAND

KO CONTRACTING DIVISION, 696 VIRGINIA ROAD CONCORD, MA 01742-2751 UNITED

STATES

JENNIFER SAMELA 978 318-8324

01 AUG 2025

SEE SCHEDULE

Section A - Solicitation/Contract Form

Drainage Culvert Repairs, Colebrook River Lake, Colebrook, CT

W912WJ25QA064

Section B - Supplies or Services & Prices or Costs

Additional Information/Notes

VENDORS SUBMITTING A QUOTE IN RESPONSE TO A SOLICITATION ARE RESPONSIBLE FOR ADHERING TO ALL INSTRUCTIONS AND TERMS AND CONDITIONS INCLUDED IN THE SOLICITATION. FAILURE TO DO SO MAY RESULT IN QUOTES BEING DEEMED

NON-RESPONSIVE

INFORMATION:

1. This is a Request for Quotations (RFQ) in accordance with Federal Acquisition Regulation (FAR) Part 13.

2. Potential vendors are notified that the basis on which award will be made is price alone.

3. All responsible sources may submit a quote which, if timely received, must be considered by the Agency.

4. The Government may request that a vendor respond to a Quote Verification after the solicitation closes, but prior to award. The vendor shall respond in sufficient detail to all questions or statements no later than the response date and time listed in the correspondence. Failure to do so may result in quotes being deemed non-responsive and removed from consideration. The Government is under no obligation to provide extensions for responses.

QUESTIONS REGARDING SOLICITATIONS:

1. Questions regarding the solicitation shall be directed to the Contract Specialist:

a. Name: Jennifer M. Samela

b. Phone: 978-318-8324

c. Email: Jennifer.M.Samela@usace.army.mil

2. Technical Points of Contact shall not provide responses to interested vendors.

3. Please direct questions to the Contract Specialist. Any information received at the site visit which conflicts with this solicitation should be brought to the attention of the Contract Specialist. The solicitation and resulting contract shall be the governing document in all cases.

QUOTE SUBMISSION:

1. Quotes shall be submitted via email to the Contract Specialist listed above no later than the closing date and time identified in the solicitation or subsequent amendments.

2. The Government is under no obligation to consider any quote received after the solicitation closing date or time.

BID SCHEDULES:

1. If a Bid Schedule is included in the solicitation, vendors shall complete the bid schedule in its entirety (all tasks, all years).

2. Vendors shall enter $0.00 on Bid Schedules in which items are Not Separately Priced. Blank entries will not be considered and will result in quotes being deemed non-responsive.

3. Failure to complete the Bid Schedule in its entirety and return same with a quote will result in quotes being deemed non-responsive.

SITE VISITS:

1. SITE VISITS ARE HIGHLY RECOMMENDED PRIOR TO PROVIDING A QUOTE. SEE CLAUSE 52.236-27 or 2.236-27 ALT I FOR

ADDITIONAL INFORMATION.

2. If date(s)/time(s) for site visits are included in the solicitation, then interested vendors will be permitted to visit the site during those dates/times. No other dates/times will be permitted for site visits.

3. If no dates/times for site visits are included in the solicitation, then interested vendors shall contact the Technical Point of Contact as identified in the solicitation to schedule a site visit.

4. No site visits will be permitted AFTER a solicitation closes.

BONDING:

1. In accordance with FAR 28.101-1(c), the Contractor will NOT be required to provide a Bid Guarantee.

2. In accordance with FAR 28.102-2(b), the Contractor will be required to provide the following payment protections for all construction contracts at or above $150,000.00.

(i) Payment Bond or

(ii) Irrevocable Letter of Credit and

(iii) Performance Bond

A Payment Bond or Irrevocable Letter of Credit is the SELECTED payment protection for the Government. The penal amount of bond shall be 100% of the original contract price. If the contract price increases, the Government will require an increase in the penal sum of the existing bond. This bond shall be submitted to the Contracting Officer within 10 days after receipt of award.

A Performance Bond shall be required if the total price of the quote is $150,000.00 or above. The penal amount of the Performance Bond shall be 100% of the original contract price. If the contract price increases, the Government will require an increase in the penal sum of the existing bond. This bond shall also be submitted to the Contracting Officer within 10 days after receipt of award.

3. In accordance with FAR Part 28.102-2(c), the Contractor will be required to provide one of the following payment protections for all construction contracts $35,000.00 or above, but not exceeding $150,000.00.

(i) Payment bond or

(ii) Irrevocable letter of credit

A Payment Bond or Irrevocable Letter of Credit is the SELECTED payment protection for the Government. The penal amount of bond shall be 100% of the original contract price. If the contract price increases, the Government will require an increase in the penal sum of the existing bond. This bond shall be submitted to the Contracting Officer within 10 days after receipt of award.

**No Payment Protections Required for construction contracts less than $35,000**

4. Prior to award, the Government may request that the Contractor provide a Letter of Bond Ability issued by a Surety that is listed on US Treasury Circular 570 (https://www.fiscal.treasury.gov/surety-bonds/list-certified-companies.html).

Letter of Bond Ability shall be issued to the Contractor and shall state that the Contractor is pre-qualified for bonding, include the single and aggregate bond limits that the bond company will support, and provide contact information of the bond agent or attorney-in-fact.

Failure to provide a Letter of Bond Ability as required will result in the Contractor's quote being deemed non-responsive.

QUOTATION INSTRUCTIONS:

1. If subcontractor will be used for this work, please provide company name and contact information:

2. In accordance with FAR Part 52.204-7(b)(1) Contractors must be registered in the System for Award Management (SAM) database (www.SAM.

gov) to submit a quote. Registered is considered when a SAM registration is marked "Active".

3. In accordance with FAR Clause 52.204-8(d), Representations and Certifications are to be completed in www.sam.gov.

NOTE: SAM.gov registration takes approximately 3 weeks (Unique Entity Identified (UEI) 1-2 business days; CAGE code validation up to 10 business days; IRS validation and overall submission 7-10 business days). It is the contractor's responsibility to track SAM.gov registration and follow-up with required tasks.

4. Provide business Unique Entity Identifier (UEI): _______________________________

5. Provide business CAGE code: __________________________________

6. Contractors are not required to submit an Accident Prevention Plan (APP) with their quote. The successful Contractor will be required to submit this document at the direction of the Technical Point of Contact. The APP must be accepted by the Government Designated Authority prior to the commencement of work.

Item Supplies/Service Quantity Unit Unit Price Amount

Thorp Brook Culvert Repairs, Colebrook River Lake, Colebrook, CT

Contractor shall furnish all labor, materials, and equipment to stabilize and rebuild the outflow structures and drainage channels of four (4) existing drainage culverts using gabion baskets at Colebrook River Lake, Colebrook, CT in accordance with the Statement of Work.

Pricing Arrangement: Firm Fixed Price

1 Job

Section C - Description/Specifications/Statement of Work

DRAINAGE CULVERT REPAIRS

COLEBROOK RIVER LAKE

COLEBROOK, CT 06021

STATEMENT OF WORK

I. General

a. Scope - Furnish all materials, labor and equipment to stabilize and rebuild the outflow structures and drainage channels of four (4) existing drainage culverts (see Figure 1 for culvert locations) using gabion baskets at Colebrook River Lake:

i. Excavate slopes and remove existing rip rap as needed, ensuring that slopes remain stable and free from erosion during construction using appropriate erosion and sediment control measures.

ii. Reuse existing rip rap and excavated materials in accordance with installation specifications herein. Dispose of unused materials off-project, unless otherwise directed by the Technical Point of Contact (TPOC).

iii. Install base fill, gabions, filter fabric, concrete structures, backfill, pipe extensions, geotextile, lawn soil and seed, and any other associated materials in accordance with the specifications and execution sections herein (see Figure 2 for typical gabion cross section).

All work shall be performed in a timely manner to the satisfaction of the TPOC and in accordance with the Statement of Work.

b. Location - 426A Colebrook River Rd., Colebrook, CT 06021. This is a US Army Corps of Engineers Flood Risk Management Facility.

c. Site Visit - Contact the TPOC, James Jylkka, Park Ranger, at James.Jylkka@usace.army.mil or 860 379-8234 to arrange a site visit.

*A site visit is highly encouraged. Contractors will be responsible to self-verify all measurements and plans prior to fabrication and installation.

d. Schedules - All work shall completed no later than 210 days after Notice to Proceed. The project area will be open to the Contractor Monday through Friday, 7:00AM to 3:30PM and all work must be done during those hours, unless additional hours are approved by the TPOC. No work shall be done on weekends or Government Holidays, or when precipitation events are forecast.

All preconstruction submittals shall be submitted within 21 days of Notice to Proceed. The Government reserves up to 21 days for review and acceptance on each submittal/resubmittal from the date of receipt. If revisions are necessary to the submittals, the Contractor shall make such revisions and shall be resubmitted to the Government in an acceptable form within 14 days of the Government's response, unless additional time is granted by the Government in writing. Work shall not proceed prior to the acceptance of preconstruction submittals.

e. Safety Requirements

i. General:

All work shall be conducted in accordance with the U.S. Army Corps of Engineers (USACE) Safety and Occupational Health Requirements (EM 385- 1-1, most recent edition), and all applicable Occupational Safety and Health Administration (OSHA), federal, state, and local safety and health requirements. A copy of EM 385-1-1 can be accessed electronically at the following link:

https://www.publications.usace.army.mil/Portals/76/EM%20385-1-1%20_EFFECTIVE%2015March2024.pdf

The Government reserves the right to cease work at any time should the safety of employees, Contractors, and/or the public become jeopardized.

ii. Accident Prevention Plan (APP):

The Contractor shall prepare a site-specific Accident Prevention Plan. The APP must be written by a Competent Person (CP) and document the specific work processes, equipment, materials to be used, hazards and applicable control measures.

The mandatory ENG Form 6293 (Accident Prevention Plan Worksheet) must be submitted and accepted prior to beginning on site work:

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6293_2023Aug31.pdf

A preparatory meeting shall be conducted by the Prime Contractor to discuss the APP contents with all effected onsite employees. The Prime Contractor is responsible for informing the subcontractors of the safety provisions under the terms of the contract, the penalties for noncompliance, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out.

Daily safety meetings shall be held and documented. Records shall be available to the TPOC upon request.

iii. Activity Hazard Analysis (AHA):

An AHA shall be submitted and accepted for each definable feature of work (DFOW) in accordance with EM 385-1-1, Chapter 2-6. A DFOW is defined as any task, which is separate and distinct from other tasks, has separate control requirements, or is identified as different trades or disciplines.

The AHA shall be continuously reviewed and revised to address changing site conditions as appropriate.

For a non-mandatory formatted outline of an AHA, see ENG Form 6206 (Activity Hazard Analysis) https://www.publications.usace.army.mil/Portals/76/Eng_Form_6206_2023Aug24.pdf

iv. Site Safety and Health Officer (SSHO) Requirements:

The Contractor shall employ a minimum of one person to function as a Level 3, SSHO. A Level 3 SSHO is a designated Qualified Person (QP) or Competent Person (CP) with Safety and Occupational Health (SOH) responsibility that meets the requirements of EM 385-1-1, Chapter 2-3.b and 2-4.

b.

Level 3 SSHOs must have training, knowledge, and/or experience identifying hazards and implementing controls for the work being performed.

The SSHO shall be present at the project site and be responsible for overseeing the implementation of the Prime Contractor's SOH program.

Contractor shall designate all SSHOs on a mandatory ENG Form 6282 (Site Safety and Health Officer Designation Letter):

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6282_2023Aug28.pdf

v. First-Aid and CPR Personnel Requirements:

For shifts with multiple employees, provide at least two employees that are certified to administer First Aid and CPR. When employees work alone, they must be certified in First Aid and be provided an effective means of communication to call for assistance in the event of an emergency.

Minimum First Aid and CPR qualifications are outlined in EM 385-1-1, Chapter 3-3.

vi. Additional Personnel Requirements:

Other Competent Person (CP) or Qualified Persons (QP) may be required per EM 385-1-1 and/or other sections of this Statement of Work, based on the definable features of work for this project.

vii. Accident Reporting:

All accidents and near misses shall be investigated by the Contractor and reported to the TPOC in accordance with EM 385-1-1, Table 2-1.

The mandatory ENG Form 3394 shall be completed and submitted to the TPOC within seven (7) days of an incident: https://www.publications.usace.

army.mil/Portals/76/Publications/EngineerForms/Eng_Form_3394_2021Aug.pdf

viii. Employee Exposure Data:

The Contractor shall electronically report total employee work hours (including subcontractors) to the TPOC by close of business on the 10th calendar day of the following month.

ix. Excavation and Trenching

1. General: All excavating and trenching activities are required to be completed in accordance with EM 385-1-1, Chapter 25.

a. Submittals:

i. Activity Hazard Analysis (AHA) is required to be developed by a Competent Person (CP) for all work in excavations and trenches.

ii. For excavations or trenches 5 feet (1.5m) or more in depth, an Excavation and Trenching Plan is required. The plan must be developed by a CP, submitted, and approved by a USACE Safety Officer, or accepted by the Contracting Officer (KO) or Contracting Officer's Representative (COR) prior to beginning work. The plan must meet minimum plan requirements outlined in EM 385-1-1, Chapter 25-7.

b. Required Personnel:

i. Competent Person (CP): All projects that involve excavation and trenching activities are required to have a Competent Person (CP) who has training, knowledge, and experience in excavation and trenching soil analysis, use of protective systems, and the requirements of EM 385-1-1 Chapter 12 and 29 CFR 1926 Subpart P.

ii. Rescue Personnel: Must be trained on rescue procedures identified in Excavation and Trenching Plan.

f. Preconstruction Conference:

Prior to the start of any work, the Technical Point of Contact will schedule and conduct a "Pre-Construction Conference". The Contractor's Project Manager and Quality Control Personnel shall be physically present at this meeting. The Contractor shall directly oversee all work on the project and the Project Manager and Quality Control Personnel shall have the authority to act on behalf of the Contractor. This conference will be held at the time and location agreeable to the Government and Contractor. No work may be performed under this contract prior to this conference. The purpose of the conference is to enable the Technical Point of Contact to outline the procedures that will be followed by the Government in its administration of the contract, and to discuss the performance that will be expected from the Contractor. This conference will allow the Contractor an opportunity to ask questions about the Government's administration and inspection of contract work or obtain other pertinent information that might be required. At the Pre-Construction Conference the Contractor shall provide the name of the Project Superintendent with a telephone number for project coordination.

The following is a general list of items for discussion during this Pre-construction Conference:

i. Authority of the TPOC and Quality Assurance Inspectors

ii. Contractor's Safety Program (including sub-contractors)

iii. Mandatory ENG Form 6293 (Accident Prevention Plan Worksheet) and Activity Hazard Analysis for each Definable Feature of Work (DFOW)

iv. Safety Meetings

v. ENG Form 3394 (Mandatory if needed for Accident Reporting)

vi. Safety Data Sheet (SDS) requirements

vii. Correspondence, Communication and Administrative Procedures

viii. Invoice and Payment

g. Permits:

The Contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses, permits, and letters of certification. The Contractor shall comply with any applicable Federal, state, county, and municipal laws, codes, and regulations in connection with the performance of the work specified under this contract. Contractor shall be responsible for coordinating with Call Before You Dig (CBYD) prior to the beginning of work.

h. Security:

The Contractor shall comply with all established security policies at the Colebrook River Lake project. If applicable, Contractor shall comply with Projects Key Control Management Program. Due to periods of heightened security, which may affect access to the areas covered under this contract, areas may be subject to periodic closures, which in turn may reduce or inhibit the Contractor's ability to access certain areas. During periods of heightened security, the Government reserves the right, at any time, to close any property or portion of property and reschedule and/or cancel any subsequent service in an area. The Contractor shall be given at least a 24-hour notice of any such closure.

i. Contractor's Personnel:

i. Employee Conduct:

The Contractor shall be responsible for seeing that the Contractor's employees strictly comply with all Federal, state, and municipal laws. Any personnel activity, which, in the opinion of the Government, is deemed detrimental to the performance of the contract may result in the removal of Contractor employee/employees.

Examples of unbecoming actions or conduct include but are not limited to the following:

1. Cursing, harassment, or discrimination of and/or unwarranted physical contact with visitors, USACE personnel, or other contractors

2. Recurring written and/or verbal complaints from visitors, USACE personnel, or other contractors.

3. Unsafe operation of vehicles while on USACE property.

ii. Removal of Contractor's Employees:

The TPOC may require the Contractor to immediately remove from the work site any employee of the Contractor or subcontractor, who, in the opinion of the TPOC, who endangers persons or property, or whose physical or mental condition is such that it would impair the employee's ability to satisfactorily perform assigned work. Notification to the Contractor shall be promptly made in writing if time and circumstances permit. Otherwise, notification shall be verbal or by telephone and shall be confirmed in writing as soon as possible. No such removal, however, will reduce the Contractor's obligation to perform all work required under this contract, and immediate replacement will be made as required. This requirement shall not be made the basis of any claim for compensation or damages against the United States or any of its officers or agents.

Note: At least one of the Contractor employees on site shall be able to communicate effectively and efficiently with all project staff.

j. Payment:

After final inspection and acceptance by the Government, the contractor shall submit an invoice to the TPOC. The invoice shall include the following:

Invoice Date; Contract Number; Dates of Service; Description of Work; Quantities; and total amount due per line item. For jobs greater than 30 days the contractor may request progress payments

All invoices may be faxed, emailed, or mailed to:

U.S. Army Corps of Engineers Colebrook River Dam 426A Colebrook River Rd., Colebrook, CT 06021 Fax: 860 379-6436

Email (preferred) to: James.Jylkka@usace.army.mil

II. Technical Requirements

a. Submittals:

Although the Government reviews submissions required by this Statement of Work, it is emphasized that the Contractor's work must be completed using proper internal controls and review procedures. The Government reserves up to 21 days for review and acceptance on each submittal /resubmittal from the date of receipt. If revisions are necessary to the submittals, the Contractor shall make such revisions and shall resubmit to the Government in an acceptable form within 14 days of the Government's response, unless additional time is granted by the Government in writing.

The documents identified below must be prepared in accordance with the applicable standards, submitted to the TPOC for review and must be accepted by the Government.

Preconstruction Submittals: Submitted within 21 days of Notice to Proceed. Submittals must be accepted prior to the commencement of any field work.

i. ENG Form 6293 (Accident Prevention Plan Worksheet)

ii. Activity Hazard Analysis; non-mandatory template available: ENG Form 6206

iii. ENG Form 6282 (Site Safety and Health Officer Designation Letter)

iv. First-Aid and CPR Personnel requirements Safety Data Sheet (SDS) for applicable materials

v. Licenses and Certifications as determined by the scope of work.

vi. Safety Inspection for all Heavy Equipment: The Contractor shall submit a current written safety inspection for all heavy equipment proposed for use on this contract.

vii. Work Site Plan: Prior to the start of on-site work, the Contractor shall submit a site plan.

viii. Work Plan and Schedule: The Contractor shall submit a written Work Plan describing the methods and equipment required to accomplish the work and provide the required environmental and worker protection; this plan will include a schedule of work.

ix. Environmental Protection Plan: The Contractor shall submit an Environmental Protection Plan for review and approval by the TPOC.

x. Excavation and trenching plan.

xi. Erosion and sediment control diagram and product specifications.

xii. Screened, weed-free topsoil certification/documentation

xiii. Seeding mix specifications documenting no invasive species

b. Clean Up:

The Contractor shall practice good housekeeping to maintain a safe job site. The Contractor shall keep the work area, including any storage areas, free from the accumulation of waste materials. Upon completing work in an area, the Contractor shall remove any tools, equipment, and materials that are not the property of the Government. Upon completion of work, the Contractor shall clean up the job site to the satisfaction of the Government.

c. Government Resources:

The Contractor is responsible for providing all materials to complete the project. Unless specified in the contract, the Government will not provide any equipment, water, electricity, telephone services or other resources.

d. Omissions:

This contract may not cover all specified activities, steps, and procedures required to supply the contract product. In case of error or omission, the industry, state or federal standards, practices, specifications, and/or guides shall prevail. In no instance shall an omission be reason to produce less than an acceptable and functional product.

e. Quality Assurance:

The Contractor is responsible for the quality control of the contract work. The Government has the right to inspect and test all items called for by the contract, to the extent practicable always and at all places during the term of the contract.

f. Other Contracts:

The Government may undertake or award other contracts for additional work not related to this contract, and the Contractor shall fully cooperate with other contractors and Government employees. The Contractor shall not commit or permit any act, which will interfere with the performance of work by another contractor or by Government employees.

g. Environmental Protection:

Containers for excess and/ or waste materials, rubbish, etc. shall be provided by the Contractor at the site, and the site will be inspected/ cleaned daily.

No burning is permissible. Water, air, and land resources shall not be adversely impacted during the work. The Contractor will take necessary steps to ensure all Federal, State, and Local environmental regulatory requirements are met at no additional cost to the Government. Assurance of compliance with this section by subcontractors shall be the responsibility of the Contractor.

h. Storage Area:

The storage area for use by the Contractor, for work and storage of equipment, materials, and trailers during the life of this contract will be determined at the Pre-Work Conference. The storage area will be located at Colebrook River Dam.

The Contractor shall confine its storage area to the limits as designated or approved by the TPOC and shall be responsible for the security of the area.

Upon completion of the contract, and at no additional cost to the Government, remove all equipment and materials, except as otherwise specified, and restore the site to its original condition as approved by the TPOC.

Trailers, equipment, or materials must not be open to public view except for those items which are in support of ongoing work on any given day. Do not stockpile materials outside the storage area in preparation for the next day's work. Park mobile equipment, such as tractors, wheeled lifting equipment, cranes, trucks, and like equipment within the storage area at the end of each workday.

i. Products:

i. Sustainability Under the Comprehensive Procurement Guidelines (CPG) program, the Environmental Protection Agency (EPA) designates products that are or can be made with recovered materials and recommends practices for buying these products. Any designated product that is being offered or supplied under this contract shall meet the minimum recommended content levels as identified under the CPG program. Visit https://www.epa.gov/smm /comprehensive-procurement-guideline-cpg-program for a complete list of designated products and the associated recommended contents levels.

Offerors must be able to demonstrate that each offered products meets minimum content levels upon request.

ii. Specifications (refer to Figure 1 for specific culvert locations)

1. CULVERT 1

a. Base material

i. Six (6) inch minus

ii. Connecticut Department of Transportation (CTDOT) approved road base

b. Gabions Gabion sizing may be flexible ; however, it shall meet the following criteria:

i. Basket style shall be woven/twisted hexagonal mesh, with no less than 11-gauge galvanized wire. Lacing wire no less than 13.5-gauge. See Figures 2 and 3 for gabion cross section and material specifications

ii. Basket dimensions no less than two and one-half (2.5) feet in depth and no greater than three (3) feet in height

iii. All materials must meet standards set forth in ASTM A975 and ASTM A764

iv. Gabion fill shall be angular stone of varying sizes, with the smallest no less than eighty (80) percent of the size of the hexagonal openings

v. Four (4) inch perforated, filter-fabric wrapped flexible corrugated HDPE drainage pipe.

vi. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate

c. Backfill and filtration

i. A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) with a minimum water flow of 140 gpm/sf (ASTM D4491). See Figure 4 for geotextile specifications

ii. Backfill may be a combination of excavated material and imported topsoil. Any soil brought onsite shall be screened and free from weeds and meet applicable CTDOT specifications for roadside slopes.

d. Rip rap slope

i. Intermediate rip rap, sized in accordance with CTDOT specifications for the slope

e. Turf reinforcement

i. Turf reinforcement matting shall be nylon or high-density polyethylene with a minimum thickness of 3mm (ASTM D6525) and a minimum shear stress rating of four (4) pounds per square foot (ASTM D6460). 95% minimum open space for turf root penetration.

f. Topsoil and hydroseeding

i. Soil shall be a screened loam suitable for turf grass

ii. Hydroseeding shall be done with a northeast native grass seed blend

2. CULVERT 2

a. Base material

i. Six (6) inch minus

ii. CTDOT approved road base

b. Gabions Gabion sizing may be flexible ; however, it shall meet the following criteria:

i. Basket style shall be woven/twisted hexagonal mesh, with no less than 11-gauge galvanized wire. Lacing wire no less than 13.5-gauge. See Figures 2 and 3 for gabion cross section and material specifications

ii. Basket dimensions no less than two and one-half (2.5) feet in depth and no greater than three (3) feet in height

iii. All materials must meet standards set forth in ASTM A975 and ASTM A764

iv. Gabion fill shall be angular stone of varying sizes, with the smallest no less than eighty (80) percent of the size of the hexagonal openings

v. Four (4) inch perforated, filter-fabric wrapped flexible corrugated HDPE drainage pipe.

vi. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate

c. Backfill and filtration

i. A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) with a minimum water flow of 140 gpm/sf (ASTM D4491). See Figure 4 for geotextile specifications

ii. Backfill may be a combination of excavated material and imported topsoil. Any soil brought onsite shall be screened and free from weeds and meet applicable CTDOT specifications for roadside slopes.

d. Rip rap slope

i. Intermediate rip rap, sized in accordance with CTDOT specifications for the slope

e. Topsoil and hydroseeding

i. Soil shall be a screened loam suitable for turf grass

ii. Hydroseeding shall be done with a northeast native grass seed blend

3. CULVERT 3

a. Base material

i. Six (6) inch minus

ii. CTDOT approved road base

a. Gabions:

Gabion sizing may be flexible ; however, it shall meet the following criteria:

i. Basket style shall be woven/twisted hexagonal mesh, with no less than 11-gauge galvanized wire. Lacing wire no less than 13.5-gauge. See Figures 2 and 3 for gabion cross section and material specifications

ii. Basket dimensions no less than two and one-half (2.5) feet in depth and no greater than three (3) feet in height

iii. All materials must meet standards set forth in ASTM A975 and ASTM A764

iv. Gabion fill shall be angular stone of varying sizes, with the smallest no less than eighty (80) percent of the size of the hexagonal openings

v. Four (4) inch perforated, filter-fabric wrapped flexible corrugated HDPE drainage pipe.

vi. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate

b. Backfill and filtration

i. A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) with a minimum water flow of 140 gpm/sf (ASTM D4491). See Figure 4 for geotextile specifications

ii. Backfill may be a combination of excavated material and imported topsoil. Any soil brought onsite shall be screened and free from weeds and meet applicable CTDOT specifications for roadside slopes.

c. Rip rap slope

i. Intermediate rip rap, sized in accordance with CTDOT specifications for the slope

d. Topsoil and hydroseeding

i. Soil shall be a screened loam suitable for turf grass

ii. Hydroseeding shall be done with a northeast native grass seed blend

e. Concrete headwall Headwall may be precast or poured in place, as conditions necessitate, but must meet the following specifications:

i. Shall use concrete with a minimum of 4,000 PSI, Type I/II cement and no less than grade 40 rebar.

ii. Shall include an apron, toe plinth, and forty-five (45) degree wingwalls. See Figure 5 for an example of headwall style to be used.

iii. Shall be sized and installed appropriately, including methods and materials, in accordance with CTDOT culvert headwall design standards.

iv. Gaps around pipe shall be grouted with an appropriate material in accordance with culvert headwall design CTDOT standards.

4. CULVERT 4

a. Base material

i. Six (6) inch minus

ii. CTDOT approved road base

a. Gabions Gabion sizing may be flexible ; however, it shall meet the following criteria:

i. Basket style shall be woven/twisted hexagonal mesh, with no less than 11-gauge galvanized wire. Lacing wire no less than 13.5-gauge. See Figures 2 and 3 for gabion cross section and material specifications

ii. Basket dimensions no less than two and one-half (2.5) feet in depth and no greater than three (3) feet in height

iii. All materials must meet standards set forth in ASTM A975 and ASTM A764

iv. Gabion fill shall be angular stone of varying sizes, with the smallest no less than eighty (80) percent of the size of the hexagonal openings

v. Four (4) inch perforated, filter-fabric wrapped flexible corrugated HDPE drainage pipe.

vi. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate

b. Backfill and filtration

i. A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) with a minimum water flow of 140 gpm/sf (ASTM D4491). See Figure 4 for geotextile specifications

ii. Backfill may be a combination of excavated material and imported topsoil. Any soil brought onsite shall be screened and free from weeds and meet applicable CTDOT specifications for roadside slopes.

a. Rip rap slope

i. Intermediate rip rap, sized in accordance with CTDOT specifications for the slope

c. Topsoil and hydroseeding

i. Soil shall be a screened loam suitable for turf grass

ii. Hydroseeding shall be done with a northeast native grass seed blend

d. Concrete catch basin and outflow pipe Precast concrete catch basin must meet the following specifications:

i. Shall use concrete with a minimum of 4,000 PSI, Type I/II cement and no less than grade 40 rebar.

ii. Shall match size and shape of existing catch basin on opposing side of the road, with a depth no greater than that necessary to accommodate inflow pipes.

iii. Shall include a concrete floor and full size, removable, galvanized steel grate. Grate shall have openings no greater than one (1) inch and an ANSI A112.21.1M load rating of medium duty (DIN 19580 rating of B) or greater.

iv. Shall be installed appropriately, including methods and materials, in accordance with industry and CTDOT standards. Any modifications to the gabion wall design necessary to accommodate the catch basin must be approved prior to installation.

v. Outflow pipe shall be 36" diameter corrugated, HDPE, adhering to standards set forth in ASTM A760/A760M and installed in accordance with industry and CTDOT standards.

vi. Gaps around pipes shall be grouted with an appropriate material in accordance with industry and CTDOT standards.

III. Execution:

a. General:

i. Contractor shall install all products to manufacturer recommendations and in accordance with all federal, state, and local building codes and laws, and safety standards.

ii. Only new, unused materials will be installed. Used or damaged materials shall not be installed and immediately taken offsite.

iii. Activities including - but not limited to - removal and installation work, shall be scheduled so weather-related events will not damage new or existing materials or equipment.

iv. Contractor must be able to cover and protect all work areas, materials and equipment that would otherwise be exposed to the elements during a weather event, expected or unexpected.

b. Existing Conditions:

i. There is currently a total of four (4) existing culverts along the Colebrook River Lake dam access road. For the purposes of this contract, they have been numbered one through four (1-4), beginning with the culvert closest to the Route 8 entrance.

All four culverts are designed with corrugated metal pipes, exiting into rip rap armored outflow channels. See Figure 6 for typical outflow channel cross section. The retaining walls above the outflow pipes are dry stacked stone, with some apparent slumping of overlying soil in all cases.

Downstream, the outflow channels are an un-grouted mix intermediate and large rip rap. Several culverts have permanent flowing water, while others flow intermittently. Each area will require erosion and sediment controls.

Culvert one (1) is the largest, with a 72" x 44" pipe arch outflow from a large (8'x15') catch basin on the opposing side of the road. See Figure 7 for as-built drawings. During high flow rain events the catch basin's grating can become clogged with debris. During one such event water overflowed the road and washed out a large section of turf at the top of the outflow channel. The turf area also contains a riser with manhole cover for the office septic line. See Figure 8 for existing conditions.

Culvert two (2) consists of a 36" diameter pipe beneath a vertical stacked stone retaining wall. See Figure 9 for as-built drawings. On the south side of the outflow is an intermediate rip rap slope providing stabilization for a small visitor parking lot. On the north side of the outflow is a slope of approximately 6" minus. See Figure 10 for existing conditions.

Culvert three (3) consists of a 36" diameter pipe beneath a short rip rap slope and a vertical stacked stone retaining wall. See Figure 9 for as-built drawings. Downstream of the pipe is a short run of intermediate rip rap leading to a 30" corrugated metal pipe beneath the gravel contractor haul road.

The short run and immediate decrease in pipe diameter has led to issues with debris accumulation around the mouth of the 30" pipe. See Figure 11 for existing conditions.

Culvert four (4) consists of two pipes running under the road exiting into a concrete drop chamber with a 36" corrugated metal pipe outflow. See Figures 6 and 12 for as-built drawings. The concrete drop chamber receives a 36" diameter pipe that connects to the opposing catch basin. It also receives a 12" diameter concrete pipe connecting to a series of French drains along the base of the hill on the opposite side of the road. The drop chamber has a concrete floor and a manhole cleanout, which currently sits well below the elevation of the surrounding turf. The large drop inside the concrete chamber makes cleanout difficult and has led to an accumulation of debris. This, combined with wear damage to the chamber bricks (holes and cracking), has led it to become no longer serviceable. See Figures 13 and 14 for existing conditions.

ii. The Project office is easily accessible via paved road off State Route 8 in Colebrook, CT. This is a remote area, but all amenities are available within thirty minutes of the project office. Utilities are available on site.

Vehicle access to job site is limited by access gate. Building access is limited. Contractor must coordinate access with TPOC.

c. Removal:

i. Contractor shall be responsible for coordinating with CBYD and shall ensure proper precautions are used when operating around existing infrastructure.

ii. If applicable, Contractor shall be responsible for disconnecting, moving, storing, and reinstalling any guard rails, gates, road signs, pipes, grates, or other infrastructure as needed for equipment access at work or storage locations. Contractor shall be responsible for determining what infrastructure, if any, will need to be moved, based on planned equipment and methods.

iii. Contractor shall excavate, as needed, existing rip rap, base material, native soil, fill, or turf, to allow for proper installation of new materials.

Excavated materials may be reused in accordance with installation specifications herein. Unused materials shall be disposed of off-site, unless otherwise directed by the TPOC.

iv. Contractor shall remove the concrete riser at Culvert four in a manner that minimizes impacts to the existing slope. The riser and all components shall be disposed of off-site.

v. Work shall not be scheduled when rain is forecast, and disturbed areas shall not be left exposed to the elements for a period longer than necessary to begin reconstruction. Disturbed areas shall be stabilized with silt fencing, wattles, or other soil retention materials, and watercourses shall be protected with water filtration materials in accordance with CTDOT specifications and industry best practices to prevent erosion and protect water quality.

vi. The contractor will be responsible for the proper disposal of all generated demolition material and equipment. The disposal shall be in accordance with the applicable sections of Connecticut State Law.

vii. The Contractor shall be responsible for restoring any Government facilities or structures damaged as a result of the Contractor's actions. The Contractor shall also be responsible for any damage to private property or injury to any person as a result of the firm's operations. The Contractor shall notify the TPOC immediately of damage to Government and private property and injury to any person resulting from the Contractors' operation.

Also, the Contractor shall notify the TPOC of damage to Government facilities due to vandalism or other causes on the day such damage is first noticed. Trucks and/or trailers will be driven on existing roads only and not across or through park areas to facilities. The Contractor shall restore landscape features (shrubs, flowers, grasses, etc.), which are damaged or destroyed by the firm's operation. Damaged or destroyed grass areas shall be re-planted as directed by the TPOC, and shrubs and flowers which are damaged or destroyed shall be replaced from nursery stock of like size and kind

d. Installation:

i. Contractor shall furnish all necessary materials, labor and equipment to remove repair and improve a total of four (4) drainage culverts outflows.

1. CULVERT 1 (see Figures 15 and 16)

a. Base material Fill any gaps between existing intermediate rip rap with six (6) inch minus. Cover over with no less than four (4) inches of 3/4 inch washed road base, battered to a six (6) degree angle and compacted to 95% dry density to provide a stable surface for the lowest course of gabions. Base surface shall extend beyond the base of the lowest gabion layer by no less than one (1) foot in each direction

b. Drainage A four (4) inch perforated, filter-fabric wrapped flexible corrugated HDPE drainage pipe installed behind bottom course of gabions. Drainage pipe shall be surrounded by no less than four (4) inches of drainage gravel on all sides. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate.

Drainage gravel to extend the entire height of each gabion course, except for the top course. For the top course, drainage gravel shall extend to within six (6) inches of surface level.

c. Gabions

i. Stone fill may be loaded using machinery but shall be checked and rearranged by hand as necessary to prevent voids.

ii. Gabions to be stacked in horseshoe shape, stair-stepped with a minimum horizontal offset of one (1) foot for each new course

iii. The total slope from top of base material to top of slope shall not exceed 1:2

d. Backfill and filtration A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) shall extend the entire height of the wall, ending at surface level. Fabric shall allow a minimum water flow of 140 gpm/sf (ASTM D4491) to be placed between backfill/native soil and drainage gravel. See Figure 4 for geotextile specifications.

Backfill may be a combination of excavated material and imported topsoil. Soil with a high concentration of clay or silt shall not be used. All fill shall be compacted to 95% dry density.

e. Rip rap Intermediate rip rap, sized twelve (12) to eighteen (18) inches to be used as needed to repair eroded outflow channel around the culvert pipe and downstream to a minimum distance of twenty (20) feet.

f. Turf reinforcement The area between the road and the top of the outflow channel to have existing turf and topsoil excavated. Turf reinforcement matting to be laid down and covered with new turf soil.

Matting shall be nylon or high-density polyethylene with a minimum thickness of 3mm (ASTM D6525) and a minimum shear stress rating of four (4) pounds per square foot (ASTM D6460). 95% minimum open space for turf root penetration.

g. Topsoil and hydroseeding After installation of turf reinforcement matting, new soil shall be installed to match surrounding elevation and grade. Soil shall be a screened 50/50 topsoil and compost blend. The are shall then be hydroseeded with a northeast native grass seed blend.

2. CULVERT 2 (see Figure 17)

a. Base material Fill any gaps between existing intermediate rip rap with six (6) inch minus. Cover over with no less than four (4) inches of 3/4 inch washed road base, leveled and compacted to provide a stable surface for the lowest course of gabions.

b. Drainage A four (4) inch corrugated, perforated, filter-fabric wrapped PVC drainage pipe installed behind bottom course of gabions. Drainage pipe shall be surrounded by no less than four (4) inches of drainage gravel on all sides. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate.

Drainage gravel to extend the entire height of each gabion course, except for the top course. For the top course, drainage gravel shall extend to within six (6) inches of surface level.

c. Gabions Gabion sizing may be flexible based on contractor supply, but must meet the following criteria:

i. Basket style shall be woven/twisted hexagonal mesh, with no less than 11-gauge galvanized wire. Lacing wire no less than 13.5-gauge. See Figure 3 for gabion specifications.

ii. Basket dimensions no less than two and one-half (2.5) feet in depth and no greater than three (3) feet in height

iii. All materials must meet standards set forth in ASTM A975 and ASTM A764

iv. Gabion fill shall be angular stone of varying sizes, with the smallest no less than eighty (80) percent of the size of the hexagonal openings.

v. Gabions to be stacked in horseshoe shape, stair-stepped with a minimum horizontal offset of one (1) foot for each new course

vi. The total slope from top of base material to top of slope shall not exceed 1:2

d. Backfill and filtration A minimum of four (4) ounce nonwoven geotextile (ASTM D5261) shall extend the entire height of the wall, ending at surface level. Fabric shall allow a minimum water flow of 140 gpm/sf (ASTM D4491) to be placed between backfill/native soil and drainage gravel. See Figure 4 for geotextile specifications.

Backfill may be a combination of excavated material, native soil, and imported topsoil. Soil with a high concentration of clay or silt shall not be used.

All fill shall be compacted in accordance with industry standards.

e. Rip rap Intermediate rip rap, sized twelve (12) to eighteen (18) inches to be used as needed to repair eroded outflow channel around the culvert pipe and downstream to a minimum distance of twenty (20) feet.

f. Topsoil and hydroseeding Existing turf and topsoil shall be removed. New soil shall be installed to match surrounding elevation and grade. Soil shall be a screened 50/50 topsoil and compost blend. The are shall then be hydroseeded with a northeast native grass seed blend.

3. CULVERT 3 (see Figure 18)

a. Base material Fill any gaps between existing intermediate rip rap with six (6) inch minus. Cover over with no less than four (4) inches of 3/4 inch washed road base, leveled and compacted to provide a stable surface for the lowest course of gabions.

b. Drainage A four (4) inch corrugated, perforated, filter-fabric wrapped PVC drainage pipe installed behind bottom course of gabions. Drainage pipe shall be surrounded by no less than four (4) inches of drainage gravel on all sides. Drainage gravel shall be coarse washed rock, sized 1/2" to 3/4" and screened to remove fine particulate.

Drainage…