BPM055107 Project Manual.pdf

PROJECT MANUAL

Fence Replacement Green Ridge State Forest

28700 Headquarters Drive

Flintstone, MD 21530

Project Number: EC25-09010-126

June 12, 2025

For the State of Maryland Department of Natural Resources

Engineering and Construction Division Josh Kurtz, Department Secretary

State of Maryland Board of Public Works Wes Moore, Governor

Brooke E. Lierman, Comptroller Dereck E. Davis, Treasurer

TABLE OF CONTENTS

I. Detailed Specifications

A. Scope B. Qualifications of the Contractor C. Site Inspection D. Schedule of Work E. Standards and Codes F. Materials and Supplies G. Method of Work H. Warranty and Guarantee I. General Requirements

II. Alternates, Unit Prices, and Allowances

A. Alternates B. Attachments

IV. DETAILED SPECIFICATIONS

A. SCOPE:

1. This project consists of the Contractor providing all labor, equipment, materials, supplies, insurance, etc., necessary to remove the old chain link fence and barbed wire and install new chain link fencing and gates located at Green Ridge State Forest maintenance facility, 28700 Headquarters Dr., Flintstone, MD 21530.

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

a. Clearing and grubbing of work site as necessary to perform the specified work.

Remove all debris off site.

b. Remove and properly dispose of approximately 1,100 LF of chain link 7’tall fencing, rails and posts.

c. Remove and properly dispose of all gate fencing, posts, rails, truss rods, barbed wire, hinges, and all accessories for gates (Gate size R.O.: 1 @ 22’/ 1 @ 6’/ 1 @ 12’).

d. Install approximately 1,100 LF of 7’ new chain link and posts fencing to include:

chain link fabric, fence posts, top rails, ties, barbed wire and any accessories required for proper installation according to the manufacturer’s instructions. Note:

The fence shall follow the same path and footprint as the original.

e. Install 3 new chain link gates to include: chain link fabric, rails, truss rods, hinges, and all accessories for gate installation per the new fencing layout. Gate leaf sizes:

2 – 11’ x 7’ ; 1 – 6’ x 7’ ; 2 – 6’ x 7’ sections. R.O. sizes: 1- 22’ x 7’ ; 1 – 6’ x 7’ ; 1 -12’ x 7’

f. Properly dispose of construction debris from the job site and leave it in a pre-construction condition after completion.

NOTE: All quantities and sizes listed above are approximate. The

Contractor shall be responsible for obtaining his/her measurements for the project and bidding purposes.

B. QUALIFICATIONS OF THE CONTRACTOR:

1. The Contractor shall be licensed in the State of Maryland as a General Contractor and in accordance with COMAR regulations to perform work associated with this contract.

2. The Contractor shall have a minimum of 5 years of current and continuous experience installing fence and in performing similar work in the type of fence system that is being installed; and must be able to obtain and provide all warranties for this project.

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

C. SITE INSPECTION:

1. All prospective bidders are encouraged to attend the Pre-Bid conference meeting and familiarize themself with the requirements for the project. Failure to attend the Pre-Bid conference meeting, or visit the site, will not relieve the successful bidder from complying with the requirements of these specifications at no additional cost to the State.

2. Any additional site visits can be arranged with the Forest Manager at (301) 387-

5563 and the DNR Project Manager – Derek McFarland (301) 338-0906.

D. SCHEDULE OF WORK

1. Work shall be scheduled through and approved by the Project Manager and

Facility Manager. The Contractor shall perform all work Monday through Friday during the normal working hours of 7:00 am to 5:00 PM., unless approved by the Project Engineer in writing.

2. The Contractor shall notify the Project Manager seven (7) days prior to his start of work. They shall coordinate with the Project Engineer and the Facility Manager the dates of the Work Initiation Conference, the work, and any closures required.

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

4. The contract duration is sixty (60) calendar days.

E. STANDARDS AND CODES:

1. All work shall be performed in a first-class workmanship manner in accordance with standards of the trade.

2. All work shall be performed in accordance with the Maryland Department of the

Environment Regulations.

3. 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.

4. 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 101Life Safety Code (NFPA)

ASTM A121 Specification for Metallic-Coated Carbon Steel Barbed Wire ASTM A392 Specification for Zinc-Coated Steel Chain-Link Fence Fabric ASTM A780 Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings ASTM F552 Standard Terminology Relating to Chain Link Fencing ASTM F567 Standard Practice for Installation of Chain Link Fence ASTM F626 Specification for Fence Fittings ASTM F900 Specification for Industrial and Commercial Swing Gates ASTM F1043 Specification for Strength and Protective Coatings of Steel Industrial Chain Link Fence Framework ASTM F1083 Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures and any local amendments or modifications to the standards made by the authority having 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 Project

Engineer.

b. The Contractor shall be responsible for the coordination, off-loading and proper storage of all materials and supplies and assume full responsibility for protection and safekeeping up until the time of the final inspection.

c. Where applicable, materials shall be new, delivered in their original unopened containers with labels intact and legible.

d. All materials and supplies shall be stored up off of the ground surface and protected from the weather with a waterproof covering.

e. Materials shall be stored in a safe area, out of the way of traffic. Storage site location shall be approved by the Facility Manager prior to the storage of any materials on site.

f. Any materials not specifically mentioned but are necessary for the safe, professional and satisfactory completion of the project shall be provided by the Contractor as if specified herein.

2. Specifics:

a. Steel Chain Link Fabric: Shall be ASTM A392, 2”, 9-guage, galvanized (class 2- 2.0 oz/sf).

b. Tension Wire: #7-gauge core marcelled wire complying with ASTN A824

Type II zinc coated, ASTM A817 class 5 – 2.0 oz/sf

c. Metallic Coated Steel Barbed Wire: Comply with ASTM A121, Design Number 12-4-5-14R, double 12-½ gauge (0.099 in.) (2.51 mm) twisted strand wire, with 4 point 14 gauge (0.080 in.) (2.03 mm) round barbs spaced 5 inches (127 mm) on center. . Coating Type Z - Zinc-coated:

Strand wire coating Type Z, Class 3, 0.80 oz/ft² (254 g/m²), barb coating

0.70 oz/ft² (215g/m²).

d. Fittings:

i. Tension and brace bands: Shall be galvanized pressed steel complying with ASTM F626 minimum steel thickness of 12 gauge minimum width of ¾” and minimum zinc coating of 1.20 oz/sf.

Secure bands with 5/16” galvanized steel carriage bolts.

ii. Terminal post caps, rail and brace ends, Boulevard clamps, rail sleeves: Shall be per ASTM F626, pressed steel galvanized after fabrication having a minimum zinc coating of 1.2 oz/sf.

iii. Truss Rod Assembly: Shall be per ASTM F626, 3/8”diameter steel truss rod with pressed steel tightener, minimum zinc coating 1.2 oz/sf, assembly capable of withstanding a tension of 2,000 lbs.

iv. Tension Bars: Shall be per ASTM F626. Galvanized steel one piece length 2” less than the fabric height. Minimum zinc coating

1.2 oz/sf. With a minimum cross section of 3/16” x ¾”.

v. Barbed Wire Arms: In compliance with ASTM F626, pressed steel galvanized after fabrication, minimum zinc coating of 1.20 oz. /ft² (366 g/m²), capable of supporting a vertical 250 lb (113 kg) load.

Type I – three strand 45 degree (0.785 rad) arm.

e. Tie Wire: #9-gauge core aluminum. Spaced 14" on center for line posts and 24" on center for rails or approved equal.

f. Round steel pipe and rail: Shall be schedule 40 standard weight pipe in accordance with ASTM F1083, 1.8 oz/sf hot dip galvanized zinc exterior and 1.8 oz/sf hot dip galvanized zinc interior coating.

i. Line posts: Shall be 2.375” O.D. @ 3.65 lb/ft.

ii. End, Corner, Pull post: Shall be 2.875 O.D. @ 5.79 lb/ft.

iii. Top, Brace, Bottom and Intermediate Rails: Shall be 1.66 O.D.

@ 2.27 lb/ft.

g. Gate posts: Shall be per ASTM F1083 hot dipped galvanized schedule 40 pipe. Size and weight shall be as follows:

i. Gate leaf widths up to 6’ shall be 2.875 OD, @ 5.79 lb/ft.

ii. Gate leaf widths 6’ – 12’ shall be 4.00 OD @ 9.11 lb/ft

h. Swing Gates: Shall be Galvanized steel pipe welded fabrication in compliance with ASTM F900. Gate frame members 1.900 OD ASTM 1083 schedule 40 galvanized steel pipe. Frame members spaced no greater than 8’ apart vertically and horizontally. Gate frame shall be braced and trussed as required per ASTM F626. Welded joints protected by applying zinc rich paint in accordance with ASTM Practice A780. Positive locking gate latch, pressed steel galvanized. Galvanized heavy gage pressed steel post and frame hinges. Provide lockable drop bar and gate holdbacks with double gates. Fabric shall be ASTM A392, 2”, 9guage, galvanized (class 2- 2.0 oz/sf).

i. Concrete for post footings: Shall be SHA mix #1 and have a compressive strength of 2,500 psi @ 28 days.

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 in order to complete the project expeditiously within the time limits of the contract. The sequence of events shall be left up to the Contractor.

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

d. The Contractor shall maintain the job site in a safe, neat and orderly manner throughout the entire project and take steps to prevent accumulation of debris at the job site.

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

f. All work relating to fence, performed shall conform to Maryland Department of Transportation, State Highway Administration “Standard Specifications for Construction and Materials”, Section 615 and all addenda pertaining thereto.

g. All work shall be performed to minimize disruption to park operations. It is understood that the Contractor shall maintain accessibility for vehicular traffic throughout the project.

2. Demolition:

a. The Contractor shall perform necessary clearing and grubbing of the work site to perform the specified work. Clearing and grubbing shall be kept to a minimum. Debris generated from clearing and grubbing operations (with the approval of the Facility Manager) may be piled neatly along the job site in non-developed areas. Remaining debris must be disposed of properly by the Contractor off of State property. Remove all debris off and adjacent to the fence. Woody debris shall be grubbed and removed from the path of the new fence.

b. Remove and properly dispose of approximately 1,100 LF of Chain Link

Fabric mesh, line, corner, gate posts, footings, top rails and barbed wire.

Remove and properly dispose of all gate fencing, rails, rods, barbed wire, clamps, hinges and all accessories for the gates (Gate 1: Two 12’x 6’ sections; Gate 2: one 6’x6’ sections; Gate 3: Two 12’x6’ sections).

3. Framework Installation:

a. The new fence shall follow the path and footprint of the old fence.

b. Posts: Posts shall be set plumb in concrete footings in accordance with ASTM F567. Minimum footing depth, 24 in. plus an additional 3 in.

depth for each 1 ft. increase in the fence height over 4 ft. Minimum footing diameter four times the largest cross section of the post up to a 4.00” dimension and three times the largest cross section of post greater than a 4.00” dimension. Footing diameter shall be 12” minimum for all posts. The footing depth shall be 36” minimum for all posts. Top of concrete footing to be at grade crowned to shed water away from the post. The contractor shall ensure positive crown to shed water away from the post. Line posts installed at intervals not exceeding 10 ft. on center.

Note: Refer to attachments for locations of fence lines.

c. Top rail: When specified, install 21 ft. (6.4 m) lengths of rail continuous thru the line post or barb arm loop top. Splice rail using top rail sleeves minimum 6 in. (152 mm) long. Rail shall be secured to the terminal post by a brace band and rail end. Intermediate rail shall be field cut and secured to the line posts using boulevard clamps or brace band with rail end.

d. Terminal posts: End, corner, pull and gate posts shall be braced and trussed for fence. The horizontal brace rail and diagonal truss rod shall be installed in accordance with ASTM F567.

e. Tension wire: Shall be installed 4 in. (101.6 mm) up from the bottom of the fabric. Tension wire to be stretched taut, independently and prior to the fabric, between the terminal posts and secured to the terminal post using a brace band. Secure the tension wire to each line post with a tie wire.

4. Chain Link Fabric Installation:

a. Chain Link Fabric: Install fabric to outside of the framework maintaining a ground clearance of no more than 2 inches. Attach fabric to the terminal post by threading the tension bar through the fabric; secure the tension bar to the terminal post with tension bands and 5/16 in. carriage bolts spaced no greater than 12 inches on center. Chain link fabric to be stretched taut free of sag. Fabric to be secured to the line post with tie wires spaced no greater than 12 inches on center and to horizontal rail spaced no greater than18 inches on center. [Aluminum alloy tie wire shall be installed following ASTM F567: Wrap the tie around the post or rail and attached to a fabric wire picket on each side of the post or rail by twisting the tie wire around the fabric wire picket two full turns, cut off excess wire and bend over to prevent injury.] [Preformed 9-gauge power-fastened wire ties shall be installed following ASTM F626: Wrap the tie a full 360° around the post or rail and fabric wire picket, using a variable speed drill, twist the two ends together three full turns, cut off any excess wire and bend over to prevent injury.] Secure the fabric to the tension wire by crimping hogs rings around a fabric wire picket and tension wire.

5. Barbed Wire Installation:

a. Barbed Wire: Stretched taut between terminal posts and secured in the slots provided on the line post barb arms. Attach each strand of barbed wire to the terminal post using a brace band. Type I – three strand 45 degree (0.785 rad) arm, outside installation.

6. Gate Installation:

a. Swing Gates: Installation of swing gates and gateposts in compliance with ASTM F 567. Direction of swing shall be [inward or outward.] Gates shall be plumb in the closed position having a bottom clearance of 3 in. grade permitting. Hinge and latch offset opening space shall be no greater than 3

in. in the closed position. Double gate drop bar receivers shall be set in a concrete footing minimum 6 in. diameter 24 in. deep. Gate leaf holdbacks shall be installed for all double gates.

b. Gate Schedule:

Gate # Opening Size Leaf Size Swing 1 22’x7’ 2@ 11’ x 7’ Out 2 6’x7’ 1@ 6’x7’ Out 3 12’x7’ 2@ 6’x7’ In

Note: Refer to attached drawings for proposed opening size, location, and swing direction.

7. Disposal:

a. Properly dispose of construction debris from the job site and leave it in a pre-construction condition after completion.

H. WARRANTY AND 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 Manager with all manufacturers’ warranties for materials and systems used on this project.

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

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

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 he may require 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. He shall repair all damage caused by his operation 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 his own arrangements to acquire any temporary utility service which may be required to perform this contract. Any expenses incurred must be paid by the Contractor.

5. The completed project is subject to the inspection and approval of the Project

Manager.

V. ALTERNATES AND UNIT PRICES

A. ALTERNATES:

None.

B. UNIT PRICES:

None.

VI. DRAWINGS & ATTACHMENTS

1. The following drawings are included and shall be considered a part of these specifications:

Drawing #1 Site Map Drawing #2 Chain Link Specs Drawing #3 Brace Attach Specs Drawing #4 Gate Specs