Raceway Valve Replacement- Detailed Specs.pdf

IV. DETAILED SPECIFICATIONS

A. SCOPE:

1. This project consists of the Contractor providing all labor, equipment, materials, supplies, insurance, etc., necessary to replace raceway cleanout valves at Albert Powell Trout Hatchery. The project is located at 20901 Fish

Hatchery Road, Hagerstown, Washington County, Maryland 21740.

2. The proposed project shall include but is not limited to the following:

a. Base Bid:

i. Contractor shall saw cut asphalt at five (5) different areas.

ii. Contractor shall excavate five (5) areas approximately

5’Wx10’Lx3’D (5.5CY) in size, to expose two (2) existing valves at each location for inspection.

NOTE: Existing curb boxes shall be salvaged for reinstallation.

iii. Contractor shall supply necessary equipment to pump ground water from excavated holes to complete inspections and possible replacement of existing valves.

iv. Supply and install approximately 30 Tons of aggregate backfill.

v. Installation of 3” thick bituminous concrete surface over approximately 140 sq. yds of asphalt patch.

vi. Removal of existing valves and install new Ball centric plug valves.

NOTE: All costs associated with removal of existing valves and the replacement of valves shall be calculated under Unit Price

#1.

vii. Removal and proper disposal of all debris off state property.

NOTE: For quantities listed above as approximate, it shall be the Contractor’s responsibility to confirm all measurements to his/her satisfaction for the purpose of submitting a bid.

b. Unit Price Items:

i. Unit Price #1 – “Removal & replacement of cleanout valves”

NOTE: Unit Prices will be used to increase/decrease the final contract price based on actual quantities installed.

B. QUALIFICATIONS OF THE CONTRACTOR:

1. The Contractor shall be licensed in the State of Maryland as a General

Contractor to perform work associated with this project.

2. The Contractor shall have a minimum of three (3) years experience performing construction work of a similar nature.

3. Upon request, the Contractor shall supply to the DNR Project Engineer a list of similar projects, which have been successfully completed by the

Contractor.

C. SITE INSPECTION:

1. It is suggested the Contractor visit the job site and familiarize himself/herself with the conditions under which the work will be performed. No allowance will be made for errors on the Contractor’s part for failure to take into consideration any conditions or circumstances existing at the site which might affect the specified work.

2. Please contact the Albert Powell Facility manager Eric Bittner (301-393-

5940) prior to any site visit other than the pre-bid meeting.

D. SCHEDULE OF WORK:

1. Work shall be scheduled through and approved by the Project Engineer and the Facility Manager. The Contractor shall perform all work Monday through

Friday during the normal hours of 8:00 am to 5:00 pm, unless approved by the

DNR Project Engineer in writing.

2. The contractor shall notify the DNR Project Engineer and seven (7) days prior to the start of work. Contractor shall coordinate with the Project Engineer and the Facility Manager the date of preconstruction conference, the work, and any closures required.

3. Use of the premise by the Contractor is to be limited to specified work areas and approved storage areas.

4. Work shall be performed and completed within 120 calendar days of Notice to

Proceed.

E. STANDARDS AND CODES:

1. The Contractor shall comply with OSHA (Occupational Safety and Health

Administration) and MOSHA (Maryland Occupational Safety and Health

Administration) regulations regarding construction safety and health standards throughout the duration of this project.

2. All work shall be performed in accordance with applicable code requirements and standards as defined by the Maryland Code Administration “Maryland

Building Performance Standards” (MBPS), and the latest editions of the:

- International Building Code (IBC)

- International Residential Code (IRC)

- International Plumbing Code (IPC)

- International Mechanical Code (IMC)

- National Electric Code (NEC)

- International Energy Conservation Code (IECC)

- Maryland Accessibility Code (MAC)

- National Fire Protection Association 101 Life Safety Code (NFPA)

- International Ground Source Heat Pump Association (IGSHPA)

- Maryland Department of Transportation – State Highway Administration

Standard Specifications for Construction Materials and any local amendments or modifications to the Standards made by the local jurisdiction which may be applicable to the work.

F. MATERIALS AND SUPPLIES:

1. General:

a. All materials shall be as specified or approved equal by the DNR

Project Engineer. In the event the Contractor chooses to substitute materials other than those specified, the Contractor shall submit to the

DNR Project Engineer all pertinent data to determine the or-equal status. This material shall be submitted to the DNR Project Engineer a minimum of ten (10) days prior to the bid opening. The DNR Project

Engineer shall notify the Contractor within five (5) days as to the or-equal status.

b. All materials shall be new and where applicable shall be delivered to the job site with labels intact and legible.

c. The Contractor shall be responsible for the coordination, off-loading and proper storage of all materials and supplies up until the time of the final inspection.

d. Materials shall be stored in a safe area, out of the way of traffic.

Storage site location shall be approved by the Project Engineer and

DGS inspector prior to the storage of any materials on site. All materials and supplies shall be stored up off the ground surface and protected from weather with a waterproof covering. Any special storage instruction required by the material manufacturer shall be performed by the Contractor as if specified herein.

e. Any materials that have not been specifically mentioned, but are necessary for the complete, safe and satisfactory completion of the project shall be provided by the Contractor as if specified herein.

2. Specific: Ball centric Plug Valves / Joints / Restraints

a. Ball centric Plug valve shall be 6” 600 Full Round Port Plug valve, 175psi, Mechanical joint end as manufactured by Henry Pratt

(Part # 0600-600N1BG) or approved equal.

b. Plug valves shall meet AWWA C-517 standards and shall be equipped with a 2” square nut for use with extended “T” handle wrench.

NOTE: Shut-off T-Handle wrench for Plug valves shall be supplied by contractor to the owner upon completion of work.

c. Mechanical Joint Restraints shall be MEGALUG series 1100 for use on the specified ductile iron pipe or approved equal.

d. Mechanical Joint shall be C153 manufactured by Tyler Union or approved equal.

3. Specific: Backfill Aggregate / Bituminous Concrete

a. Aggregate backfill shall be clean # 57’s stone.

b. Subbase for asphalt patched areas shall be SHA approved graded aggregate sub-base (CR-6).

c. Tack Coat: Shall be SHA approved type “CR-S2" asphalt emulsion.

d. Bituminous Concrete Surface Mix: Shall be SHA approved hot mix asphalt, type “SF” 9.5 mm with a PG 64-22 binder.

G. METHOD OF WORK:

1. General:

a. All work shall be performed as called for in these written specifications.

b. The Contractor shall coordinate all work with the various trades and suppliers to complete the project expeditiously and within the time limits of the contract.

c. All work shall be performed in the best and most professional manner by mechanics skilled in their respective trade.

d. Where applicable, all materials and supplies shall be installed in accordance with the manufacturer’s written instructions as if specified herein.

e. Throughout the project, the Contractor shall schedule and coordinate all work with the facility Manager to minimize disruption to daily operations.

f. The Contractor shall maintain the job site in a safe, neat, and orderly manner throughout the entire project.

g. The Contractor shall be responsible for the removal and disposal of all debris throughout the duration of the project.

h. Upon completion of the project, the Contractor shall legally dispose of all excess materials, debris, etc., and leave the entire site in a broom swept condition.

i. Any work that has not been specifically mentioned but is reasonably implied and is necessary for the safe and satisfactory completion of the project, shall be performed by the Contractor as if specified herein.

2. Specific: Excavation / Valve Replacement /Backfill/ Asphalt

a. Saw cut existing asphalt and remove existing surface, base and carefully remove sub-base material as necessary to properly remove existing curb boxes and expose existing valves to perform operational inspections. All saw cuts shall be square with straight and vertical faces.

b. The contractor shall provide pumps and E&S equipment for watering during valve replacement.

NOTE: DNR Project Engineer shall inspect to determine the valves that will need replaced. Valve replacement shall be covered under Unit #1.

NOTE: The cleanout pipe where the valves will be replaced penetrates at the bottom of the raceway walls. Contractor may need to temporarily plug the pipe inside the raceways during valve replacement.

c. The contractor shall use specified mechanical joint fittings and restraints, per conditions to make proper connections.

d. Contractor shall reinstall salvaged curb boxes and backfill with #57 stone, Topped with a minimum of 8” of compacted CR-6. Backfill aggregate shall be compacted with a motorized hand tamper.

e. All bituminous concrete vertical surfaces shall be coated with a tack coat of Type “CR-S2” prior to installing the final layer of bituminous concrete.

f. The contractor shall install a 3” thick course of SHA type “SF” bituminous concrete compacted with a motorized hand tamper.

H. WARRANTY & GUARANTEE:

1. The Contractor shall fully guarantee the work covered under this contract for a period of two (2) years from the date of acceptance against defects in materials and workmanship.

2. Any defects found within the two (2) year warranty period shall be promptly repaired or replaced by the Contractor at no additional cost to the State.

3. The Contractor shall provide the Project Engineer all manufacturer’s warranties for materials and systems used on this project.

4. Acceptance by the Project Engineer of any procedures, materials, workmanship, or final product shall not relieve the Contractor of their contractual requirements.

5. All work is subject to the inspection and approval of the Project Engineer.

I. GENERAL REQUIREMENTS:

1. The Contractor shall make his/her own arrangements at his/her own expense, coordinating with the Facility Manager and the Project Engineer, for storage of materials and any construction yard that may be required to execute this project.

2. Deviation from the manufacturer's instructions or this specification will not be acceptable.

3. The Contractor shall take all necessary precautions and measures to protect all properties from damage. The Contractor shall repair all damage caused by this project to all public and private property including roads, walks, curbs, utilities, trees, shrubs, plantings, etc., and leave the property in good condition and/or at least equivalent to the condition found.

4. The Contractor shall make arrangements to acquire any temporary utility service which may be required to perform this contract. Any expenses incurred must be paid by the Contractor.

J. METHOD OF BIDDING:

1. All bids shall be submitted online via eMaryland Marketplace Advantage

(eMMA) https://emma.maryland.gov (NO PAPER BIDS!)

2. On eMaryland Marketplace Advantage opposite “Total Bid”, the Contractor shall insert a lump sum bid to complete all work described herein. Bid amount must also coincide on the Bid Form attached and all supporting documents completed to be a full and valid bid.

3. The project will be awarded to the Contractor submitting the lowest Base Bid demonstrating the ability to fulfill the requirement for this project.

4. See Section V “Alternates and Unit Prices” for additional bidding requirements.

https://emma.maryland.gov/

K. METHOD OF PAYMENT

1. After satisfactory completion and acceptance of the work, the Contractor shall submit an invoice to the DNR Project Manager for processing and payment.

2. Payments shall be made in accordance with Small Procurement, Terms and

Conditions.

V. ALTERNATES AND UNIT PRICES

A. ALTERNATES:

NONE

B. UNIT PRICES:

1. The Contractor shall insert a cost to remove & replace per valve X an estimated 6 EA = Total Unit Price #1 as directed by the DNR Project

Manager.

NOTE: Unit Prices will be used to increase/decrease the contract price based on actual quantities installed. Adjustment to the contract will be made by change order as required by Section 2B of the

Instructions to Bidders.

NOTE: All cleanout valve replacement shall be directed by Project

Engineer.

VI. DRAWINGS AND PHOTOS

Existing Butterfly valve & Worm gear assembly

This valve is what currently exists & will be inspected for replacement at each location.

Typical pair of valves located between concrete raceway walls. There are five total valve pairs to be excavated and inspected.

bmann Callout Concrete Raceway Walls bmann Line bmann Callout Existing curb boxes/valve location bmann Line bmann Line bmann Line bmann Callout Area of excavation