751-23038.TAP - Otter Creek Bridge - Addendum 1.pdf

100 Portage Street Houghton, MI 49931

906-482-4810 • 800-562-7684 • Fax: 906-482-9799

Office also in:

Iron Mountain

Ishpeming Marinette Marquette

Sault Ste Marie

U.P. Engineers & Architects, Inc. www.UPEA.com

ADDENDUM # 1

File No. 751/23038.TAP Michigan Department of Natural Resources

Otter Creek GEM Bridge Replacement Houghton County, Michigan

This ADDENDUM NO. 1, issued on January 30, 2025 is to clarify, modify and/or change the original plans and specifications issued by U.P. Engineers & Architects, Inc. and is hereby made a part of the bidding documents.

Bidders are required to acknowledge receipt of this ADDENDUM NO. 1 on the appropriate place on the Bid Form.

Pre-Bid Meeting

1. Attendance Record is attached to this Addendum.

Bidder Questions and Answers N/A

Specifications

1. Technical Specification Section 32 34 00 – Fabricated Timber Bridge

a. Part 2 Products

i. 2.1 Lumber Materials

1. E. Miscellaneous Lumber for Signposts, Etc. Framing: Stress Group D, Spruce, Pine, Fir (S.P.F.) species, Rough sawn, 19 percent maximum moisture content.

2. Technical Specification Section 32 34 00 – Fabricated Timber Bridge

a. Part 3 Execution

i. 3.2 Nail Laminated Decks

1. A. Use 4 inch 2 inch nominal thickness laminations, surface one edge hit or miss 1/8 inch scant (S1E-H or M1/8-inch scant), and one side hit or miss 1/8 inch scant (S1S-H or M1/8-inch scant).

3. Technical Specification Section 32 34 00 – Fabricated Timber Bridge

a. Part 3 Execution

i. 3.2 Nail Laminated Decks

1. B. Place the laminations on edge and at right angles to the centerline of roadway. Attach each piece to the preceding piece

ADDENDUM NO. 1

751-23038.TAP - Otter Creek GEM Bridge Addendum #1Otter Creek GEM Bridge Replacement

– Addendum #1 January 30, 2025 using galvanized spikes of sufficient length to pass through two pieces and at least halfway through the third piece. Drive spikes at each end and at approximately 12 inch 18 inch intervals alternately driving near the top and bottom edges, in accordance with 9.9.6.1.

of AASHTO LRFD Bridge Design Specifications.

4. Technical Specification Section 32 34 00 – Fabricated Timber Bridge

a. Part 3 Execution

i. 3.2 Nail Laminated Decks

1. E. For decks with spreader beams, the bridge manufacturer shall use a belt sander or planer to ‘knock down’ high points along the underside of the deck in the location of the spreader beams in order to reduce the number of uneven boards where the spreader beam is attached. The maximum allowable gap between spreader beam and the underside of the deck shall be ¼”. Manufacturer shall treat sanded/planed areas with a brush on copper naphthenate solution.

Do not apply copper naphthenate solution directly over water it is toxic to aquatic life.

Plans

- None

END OF ADDENDUM NO. 1

Attachments:

-Pre-bid Meeting Attendance Record -Revised Section 32 24 00 – Fabricated Timber Bridge Specifications

DTMB-0441 (R 19.02)

MEETING ATTENDANCE RECORD

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND BUDGET

State Facilities Administration Design and Construction Division

PROJECT DESCRIPTION/LOCATION DNR – Otter Creek GEM Bridge Replacement, Houghton County, Michigan

DATE

2025-01-22

TIME

2:00 P.M.

FILE NUMBER

751/23038.TAP

CONTRACT

NUMBER

MEETING PLACE

Microsoft Teams Meeting (Virtual)

PLEASE PRINT YOUR NAME FIRM YOU REPRESENT EMAIL ADDRESS TELEPHONE NUMBER

Clay Palossari DP Construction clayp@up.net 906-370-0686 Bill Casagranda FA Industrial Services b.casagranda@fais.build 906-284-7374 Dan Robbilard MD Contracting mdcontracting@gmail.com 906-201-0617 Nate Peck NK Environmental LLC nate@nkenvironmental.com 231-631-5243 Will Rajala WR Construction rajalaw@wrcmqt.com 906-362-2371

Brian Therrian WR Construction estimating@wrcmqt.com 906-362-2371

Mark Saari LJJ Construction mark@ljjconstruction.com 906-231-4275

Matt Beaupied Triest Forest Products Mbeaupied87@gmail.com 906-235-4919

Kendra Kersten Walton Contracting kendra@waltoncontracting.com 231-883-8020

Maeda Shroeder Walton Contracting maeda@waltoncontracting.com 231-883-8020

Brendan Tully T.S. Contract Management Tully.brendan.j@gmail.com 231-735-1003 Bill Luokkanen Portage Lake Construction bill@portagelakeconstruction.com 906-481-3920 Jared Gendron Pine Creek Excavating pinecreekexcavating@gmail.com 906-282-1094 Joel Christopherson Walbec Group jchristopherson@walbecgroup.com 715-610-4010 Drew Meyette Wuebben Construction drew@wuebbenconstruction.com 906-231-4197 Tim Rajala Blue Line Site Solutions, LLC Bluelinesitesolutions@outlook.com 906-370-8094 George Simonson MJO Contracting, Inc. gsimonson@mjocontracting.com 906-370-8965 Mike Gaffke QDV Construction Services, LLC mike@jrheineman.com 989-798-2301 Lisa Kinsinger DNR KinsingerL@michigan.gov Brad Carlson DNR CarlsonB@michigan.gov 906-201-4688 Jason Pascoe DTMB PascoeJ2@michigan.gov 906-280-1046 Tom Pawlowski DTMB PawlowskiT@michigan.gov 517-242-0973 mailto:gsimonson@mjocontracting.com mailto:mike@jrheineman.com mailto:PascoeJ2@michigan.gov mailto:PawlowskiT@michigan.gov

Josh Harju U.P. Engineers & Architects, Inc. jharju@upea.com 906-315-1327 mailto:jharju@upea.com

SECTION 32 34 00 – FABRICATED TIMBER BRIDGE

SECTION 32 34 00

FABRICATED TIMBER BRIDGE

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Bridge Decking

2. Bridge Railing

3. Approach Rail Lumber

4. Timber “Spacers”

5. Miscellaneous lumber

6. Lumber hardware

7. Fabricating, treating, and erecting structural timber

1.2 REFERENCE STANDARDS

A. AASHTO

1. AASHTO M 232: Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

2. AASHTO – Timber Connectors of AASHTO LRFD Bridge Construction Specifications for Highway

Bridges.

B. AWPA (American Wood Protection Association):

1. AWPA M4 - Standard for the Care of Preservative-Treated Wood Products.

2. AWPA U1 - Use Category System: User Specification for Treated Wood.

3. AWPA T1 – Processing and Treatment Standard.

C. AITC:

1. AITC 117 – Design Specifications for Structural Glued Laminated Timber of Softwood Species.

2. AITC 405 – Standard for Wood Products – Structural Glues Laminated Timber.

D. ASTM International:

1. ASTM A153 - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

2. ASTM B695 - Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel.

3. ASTM D2559 - Standard Specification for Adhesives for Bonded Structural Wood Products for Use

Under Exterior Exposure Conditions.

4. ASTM F1667 - Standard Specification for Driven Fasteners: Nails, Spikes, and Staples.

E. California Department of Health Services:

1. CA/DHS/EHLB/R-174 - Standard Practice for the Testing of Volatile Organic Emissions from Various

Sources Using Small-Scale Environmental Chambers, including 2004 Addenda.

F. Forest Stewardship Council:

1. FSC Guidelines - Forest Stewardship Council Guidelines.

G. Green Seal:

1. GS-36 - Aerosol Adhesives.

H. National Lumber Grades Authority:

1. NLGA - Standard Grading Rules for Canadian Lumber.

I. Northeastern Lumber Manufacturers Association:

1. NELMA - Standard Grading Rules for Northeastern Lumber.

J. South Coast Air Quality Management District:

1. SCAQMD Rule 1168 - Adhesive and Sealant Applications.

K. Southern Pine Inspection Bureau:

1. SPIB - Standard Grading Rules for Southern Pine Lumber.

L. U.S. Department of Commerce National Institute of Standards and Technology:

1. DOC PS 20 - American Softwood Lumber Standard.

M. West Coast Lumber Inspection Bureau:

1. WCLIB - Standard Grading Rules for West Coast Lumber.

N. Western Red Cedar Association:

1. WRCA - Lumber Grades and Standards.

O. Western Wood Products Association:

1. WWPA - 2011 Western Lumber Grade Rules, including supplements.

1.3 SUBMITTALS

A. Section 01300 – Submittals.

B. Product Data: Submit technical data on wood preservative materials and application instructions.

C. Submit shop drawings of timber bridge components.

D. Submit Lumber Certifications for all lumber types.

1.4 QUALITY ASSURANCE

A. Perform Work according to the following:

1. Lumber Grading Agency: Certified by NIST PS 20.

B. Perform Work in accordance with MDOT Standards.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Section 01600 - Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for damage.

C. Store materials according to manufacturer instructions.

D. Protection:

1. Protect framing members from warping or other distortion by stacking in vertical position and bracing to resist movement.

2. Provide additional protection according to manufacturer instructions.

3. Use slings or other devices to protect the corners of heavy timbers and banded packages of lighter timber.

E. Cut and form lumber and timber so joints have even bearing over their entire contact surface. Do not use shims in making joints. Close all joints. Drive nail and spike heads flush with the wood surface or drive screw heads flush.

PART 2 PRODUCTS

2.1 LUMBER MATERIALS

A. Lumber Grading Rules: RIS SPIB WCLIB WRCA WWPA NFPA.

B. Lumber materials shall be as called out on the plans.

C. Season and dry structural timber and lumber before fabrication to 19 percent maximum moisture content.

D. Do not use material that is twisted, curved, or otherwise distorted.

E. Miscellaneous Lumber for Sign Posts, Etc. Framing: Stress Group D, Spruce, Pine, Fir (S.P.F) species, Rough sawn, 19 percent maximum moisture content.

2.2 FACTORY WOOD TREATMENT

A. Wood Preservative (Pressure Treatment): AWPA UC4B, Commodity Specifications A-Sawn Products or F- Wood Composites, using oil based Copper Naphthenate preservative or CCA.

B. Moisture Content after Waterborne Treatment: Kiln dried (KDAT).

C. Lumber: Maximum 19 percent.

D. Miscellaneous lumber for sign posts may be AWPA UC4A Commodity Specifications using any commercially approved waterborne preservative.

2.3 ACCESSORIES

A. Fasteners and Anchors:

1. Fasteners: ASTM A153, hot-dip galvanized steel for high-humidity and treated wood locations.

2. Fasteners, Coated: Coated structural and deck screws by any of the following manufacturers.

a. GRK Fasteners

b. Big Timber

c. Or equal – submit for Engineer approval.

3. Cut off excess bolt lengths of more than 1 inch. After final tightening, check or burr bolts with a pointing tool to prevent loosening of nuts.

4. Countersink screws, bolts, and nuts where required. Treat countersunk recesses with an approved preservative before filling, except in railings. Fill the recess with hot pitch or other approved filler after bolts, screws, and nuts are in place.

5. Use washers under bolt heads and nuts in contact with wood. Use malleable iron washers with a diameter approximately three times the bolt diameter. Use cast iron washers when the timber is in contact with the ground. Use square washers only when specified.

6. Bore holes for round drift pins and dowels to a diameter 1 /16 inch less than the diameter of the pin or dowel. Bore holes for square drift pins and dowels to a diameter equal to the side dimension of the pin or dowel.

7. Bore holes for galvanized bolts to a diameter 1 /16 inch larger than the diameter of the bolt.

8. Bore holes for lag screws according to Subsection 7.3.1. of the AITC, Timber Construction Manual.

PART 3 EXECUTION

3.1 APPLICATION

A. General Framing:

1. Carefully select all members. Select individual pieces so that knots and defects will not interfere with placement of bolts, when nailing or making connections.

2. Discard defective pieces.

3. Set structural members level and plumb, in correct position.

4. Fasten framing according to applicable code.

5. Make provisions for erection loads and for sufficient temporary bracing to maintain structure safe, plumb, and in alignment until completion of erection and installation of permanent bracing.

6. Place horizontal members, crown side up.

7. Construct load-bearing framing members full length without splices.

B. Site-Applied Wood Treatment:

1. Apply preservative treatment to members that are site drilled or cut.

2. Treat Site-sawn cuts by applying preservative according to AWPA UC4A.

3. Allow preservative to dry prior to erecting members.

C. Site-Applied Cold Galvanizing:

1. Provide bolts of appropriate length. In the event that longer bolts are supplied, cut off excess length and apply cold galvanizing as directed by the engineer.

2. Bolts shall not protrude more than 3x the bolt diameter past the nut once installed and tightened.

3. Apply zinc rich cold galvanizing to any fasteners that are field cut w/ minimum 95% zinc content.

3.2 NAIL LAMINATED DECKS

A. Use 4 inch 2-inch nominal thickness laminations, surface one edge hit or miss ⅛ inch scant (S1E-H or M ⅛-inch scant), and one side hit or miss ⅛ inch scant (S1S-H or M ⅛-inch scant).

B. Place the laminations on edge and at right angles to the centerline of roadway. Attach each piece to the preceding piece using galvanized spikes of sufficient length to pass through two pieces and at least halfway through the third piece. Drive spikes at each end and at approximately 12 18-inch intervals alternately diving near the top and bottom edges, per 9.9.6.1 of AASHTO LRFD Bridge Design Specifications

C. Where timber stringers are used, use spikes to toenail every other piece to every other stringer. When steel stringers are used, securely attach the pieces using approved galvanized metal clips.

D. Use pieces of sufficient length to bear on at least four stringers. Do not splice pieces between stringers.

Space end joints on a stringer no closer than every third piece. Space end joints in adjoining pieces no closer than every second stringer.

E. For decks with spreader beams, the bridge manufacturer shall use a belt sander or planer to ‘knock down’ high points along the underside of the deck in the location of the spreader beams in order to reduce the number of uneven boards where the spreader beam is attached. The maximum allowable gap between the spreader beam and the underside of the deck shall be ¼”. Manufacturer shall treat sanded/planed areas with a brush on copper naphthenate solution. Do not apply copper naphthenate solution directly over water it is toxic to aquatic life.

F. After installation of the deck and spreader beams, the contractor shall tighten all spreader beam nuts with a hammer drill and install Nelson 8” composite wood shims in all locations where the top of the spreader beam does not contact the bottom of the deck using multiple shims as required to shim entire board widths.

Once inserted, install #8x1-1/2” long coated deck screw behind each shim to hold tight in place.

G. Contractor shall add additional shims and retighten all nuts on the last day of construction in the presence of the contracting officer to ensure all nuts are snug. Install Loctite red on all bolts after tightening.

3.3 TOLERANCES

A. As required by Section 705 of 2020 MDOT Standard Specifications for Construction.

B. Maximum Out-of-Position: 1 inches.

C. Other Framing Members: 1/4 inch from indicated position, maximum.

D. Surface Flatness of Bridge Decking: 1/4 inch in 10 feet minimum, and 1/2 inch in 30 feet maximum.

3.4 FIELD QUALITY CONTROL

A. Section 01400 – Quality Control.

END OF SECTION