Bear Exhibit Fence Upgrades. The following modifications are hereby made part of the contract documents:

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1 ADDENDUM TO BID T Metropolitan Park District Department of Planning, Design and Development 4702 South 19 th Street Tacoma WA Date Prepared: November 17, 2017 Bid Number: T Addendum No.: ONE (1) General Description: Bear Exhibit Fence Upgrades The following modifications are hereby made part of the contract documents: ITEM 1: Responses to Contractor Bid Questions. 1. Question: Clarification was asked for on the drawing in Exhibit A marked Northwest Trek Bear Fence Upgrades Fence Detail. Specifically, is the tip in chain fabric separate from the fencing chain fabric? Answer: The drawing shows Stretch 10 0 fabric at each bay. This is intended to illustrate a length of panel 15-0 of chain fabric installed at a 10-0 width between each post. The piece is continuous, with no break between the main fence and the tip in. 2. Question: Question: Can a concrete J rail or Jersey barrier be used in lieu of concrete fill in trenches? Answer: No ITEM 2: DIVISION 01 Section Chain-link Fencing and Gates Section 2.3 Coating A. Galvanized Coating: 1. Materials shall be hot dipped galvanized. End of Addendum No. 1 Northwest Trek Bear Exhibit Fence Upgrades T November 17, 2007 Addendum No. 1 Page 1 of 1

2 SECTION CHAINLINK FENCING & GATES PART 1 GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specifications, apply to this Section. 1.2 SUMMARY A. This Section includes the following: 1. Chainlink fencing & gates. 1.3 SUBMITTALS A. Product Data: Material descriptions, construction details, dimensions of individual components and profiles, and finishes for the following: 1. Fence and gateposts, rails, and fittings. 2. Chainlink fabric, reinforcements, and attachments. 3. Submit shop drawings for gates. B. Product Certificates: Signed by manufacturers of chain-link fences and gates certifying that products furnished comply with requirements. C. Qualification Data: For firms and persons specified in "Quality Assurance" Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified. 1.4 QUALITY ASSURANCE A. Installer Qualifications: An experienced installer who has completed chain-link fencing similar in material, design, and extent to those indicated for this Project and whose work has resulted in construction with a record of successful in-service performance. B. All welding shall be by a WABO certified welder. 1.5 PROJECT CONDITIONS A. Existing Utilities: Locate all buried utilities prior to beginning work. Exercise caution in the vicinity of the buried utilities. B. Field Measurements: Verify layout information shown on Drawings in relation to property survey and existing structures. Verify dimensions by field measurements. CHAINLINK FENCING & GATES

3 PART 2 PRODUCTS 2.1 CHAINLINK FABRIC A. Steel Chainlink Fabric: Provide fabric fabricated in one-piece widths. Comply with Chain Link Fence Manufacturers Institute "Product Manual" and with requirements indicated below: 1. Mesh and Wire Size: 2 inch mesh, 6 gauge (0.203 inch diameter). 2. Knuckle selvage top and bottom. 2.2 FRAMEWORK A. Steel Pipe: Hollow structural sections (HSS) of galvanized steel complying with ASTM with the following strength and stiffness requirements: 1. Posts: 1. All posts shall be standard hot-dip galvanized steel pipe; straight, true as to section and unspliced. 2. Line posts shall be inch outside diameter, HSS/Round, and pounds per linear foot. 3. Gate frames shall be 4.5 inch outside diameter, HSS/Round, and pounds per linear foot. 2. Rails: 1. Fences shall have top, mid and bottom rails. See details for rail height. 2. Bottom rails shall be inch outside diameter, HSS/Round, and pounds per linear foot. 3. Mid rails shall be inch outside diameter, HSS/Round, and pounds per linear foot. 4. Top rails shall be inch outside diameter, HSS/Round, and 6.01 pounds per linear foot. 5. Rails shall be fully welded to posts. 3. Kick Backs 1. Kick backs shall be inch outside diameter, HSS/Round, and 5.67 pounds per linear foot. 2. Kick backs shall be fully welded to posts. B. Tension Bars & Wire Ties: 1. Tension bars shall be used at all both sides of all posts and gates. Tension bars shall be galvanized steel for full height of fabric 3/4 inch diameter. 2. Wire ties shall be 11-gauge steel with a minimum of 0.9 oz per sf of zinc coating. 3. Tension Wire: Galvanized steel wire, 7 gauge (0.177 inch diameter) core. C. Swing Gates: 1. Gate shall be provided where shown on plans and hinged to swing 90º each way. Frames shall be inch outside diameter, HSS/Round, and pounds per linear foot. 2. All joints shall have welded corner fittings to make a rigid frame. Welded frames shall be galvanized after welding. Gate, hinges, latches, keepers, brace, and all other fittings shall be heavy duty as specified by the fence manufacturer and approved. 3. Provision shall be made for padlocking all gates in a closed position. The device shall be subject to approval. D. Fittings: CHAINLINK FENCING & GATES

4 1. Bands: Galvanized, minimum steel thickness of 12 gauge (0.105 in), minimum width of 3/4 in. Secure bands with galvanized steel screw lock buckle. Bid alternate for stainless steel band with stainless steel screw lock buckle. 2. Provide tops that are galvanized steel as a weathertight closure cap. Provide one cap for each post and one cap for each kickback. 2.3 COATING A. Galvanized Coating: 1. Materials shall be hot dipped galvanized. 2.4 CAST-IN-PLACE CONCRETE A. General: Comply with ACI 301 for cast-in-place concrete. B. Materials: Portland cement complying with ASTM C150 / C150M aggregates complying with ASTM C33 / C33M, and potable water. 1. Concrete Mixes: Normal-weight concrete air entrained with not less than 3000-psi compressive strength (28 days), 3 inch slump, and 1 inch maximum size aggregate. C. Materials: Dry-packaged concrete mix complying with ASTM C387 / C387M for normal-weight concrete mixed with potable water according to manufacturer's written instructions. PART 3 EXECUTION 3.1 SEQUENCING A. Layout all fence lines and gates for approval by Owner s Representative prior to beginning any work. 3.2 CHAINLINK FENCE A. Posts: Space line posts uniformly and plumb as shown. B. Top Rail: Install alignment. Install spanning between posts, attaching at posts. C. Mid Rail: Install spanning between posts, attaching at posts. D. Bottom Rails: Install, spanning between posts, attaching at posts. E. Chainlink Fabric: Apply fabric to inside (animal side) of framework. Pull fabric taut and tie to posts and rails, and tension bar. Anchor to framework so fabric remains under tension after pulling force is released. F. Tension Bar: Thread through fabric and secure. G. Bands and Tie Wires: Use bands and wire of proper length to firmly secure fabric to line posts and rails. 1. Maximum Spacing: Tie fabric to line posts, rails and tension bar at 12" inches o.c. CHAINLINK FENCING & GATES

5 H. Fasteners: Install screw lock buckles at spacing shown on detail on the side of the fence opposite the fabric side. 3.3 CLEANUP A. Contractor shall leave grounds in good condition, remove all sand, gravel, debris, dirt, and leave fence complete and workable in all details. 3.4 GUARANTEE A. The Contractor shall guarantee in every detail the material and construction against defects. Any defects which develop within one (1) year from date of final acceptance shall be replaced at the expense of the Contractor. END OF SECTION CHAINLINK FENCING & GATES