2025-670_Addendum__1.pdf

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Attached to
DNR RFB Devil Track Hatchery Roof Replacement
Solicitation number
2000016805
Issued by
Clay County, Minnesota

About this file

This document is Addendum No. 1 issued by the Minnesota Department of Natural Resources (DNR) for the Devil Track Hatchery Roof Replacement project (Solicitation No. 2025-670). The addendum modifies the original bid documents, changing the bid opening date from March 25, 2025, to March 28, 2025, at 2:00 PM. The project involves a complete roof covering replacement for a 35' x 40' steel building at the Devil Track Hatchery site, including structural framing repairs and replacements. A mandatory pre-bid meeting was held on March 18, 2025, and responses from contractors who did not attend will be rejected.

The addendum includes clarifications to several bid phase questions, such as confirming that the entire roof covering will be replaced, specifying three required special inspections (structural steel/welding, high-strength bolting connections, and steel deck attachment), and identifying the site's most active periods as before June 15th and in October, with the preferred timeline from June 15th to September 30th. The DNR has already secured WSB as the special inspections firm. The document provides technical details about roof panel options (Seam-Loc 24 and Snap-Loc 24), notes that some existing non-structural components may be reusable with prior approval, and indicates that the building's interior will not be fully cleared during the project, with tanks and troughs remaining in place.

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STATE OF MINNESOTA

DEPARTMENT OF NATURAL RESOURCES

ADDENDUM NO. 1 to the Specifications

FOR

Devil Track Hatchery Roof Replacement

Solicitation No.: 2025-670

Original Opening Date: March 25, 2025

New Opening Date: March 28, 2025

Opening Time: 2:00 PM

THE BID OPENING DATE HAS CHANGED.

SCOPE OF ADDENDUM

1. Bid Clarification – Bid Phase Questions:

a. The following are questions that were raised during the Pre-Bid Period.

CSI or Sheet

Question Response

1. S2.1 Is the entire roof covering being replaced or just the damaged slope, as it appears on the drawing?

The entire roof covering is to be replaced over the entire building.

2. S1.1 How many Special Inspections are to be performed?

There will be three Special Inspections.

1. Field-Structural steel/welding inspection.

2. Field-High strength bolting connections.

3. Field-Steel deck attach inspection.

3. S1.1 Who is hiring the Special Inspector? The DNR has already secured a Special

Inspections firm to perform this task, including payment. The firm is WSB.

4. General When is the site most active/what is the desired timeline?

The site is most active before June 15th and again in October. The best timeline will be from June 15th to September 30th.

5. General Can any of the existing fascia, wall panels or purlins be salvaged and reused in this project?

Yes, it is possible that non-structural components like fascia, wall panels, and purlins, can be reused with prior approval from the CA.

6. General Will the building be cleaned out before and during the project?

No, the tanks/troughs and much of the items within will remain. We will be clearing out sidewalls, consolidating current items to the interior of the water troughs, and covering the troughs.

7. S2.1.2 Match existing roof panels or the PBR panels in the S2.1.2 detail?

Disregard the S2.1.2 detail. Provide Seam-Loc 24, Snap-Loc 24, roof panels or approved equal. See attachments.

8. S3.1 Gusset support bracket in North and South corners of East wall?

See attached East side revised detail S3.1.4, showing modified approach to the two constrained corners.

Attachment: Seam-Loc-24 Snap-Loc-24 East side revised detail – 3-20-25

2. Attendance of Mandatory Pre-Bid Meeting: Responses received from responders who did not attend mandatory pre-bid meeting will be rejected.

Attachment: Mandatory Pre-Bid Meeting Sign-In Sheet.

Addendum prepared by: Mark Carey Date: 03/20/2025

Approved: __________________________________________ Date: _________________ Regional Services Supervisor

This addendum shall become part of the bid.

Bidders must respond to latest version of project event to acknowledge the addendum.

CCondensed TTe c h n i c a l RR e f e r e n c e

OPEN FRAMING OR

SOLID SUBSTRATE

COMMERCIAL

INDUSTRIAL

PANEL

24" OR 18"

COVERAGE

MINIMUM

SLOPE

1/4:12

CONCEALED

FASTENED

Finishes: PVDF and Acrylic-Coated Galvalume®

Corrosion Protection: AZ55 per ASTM A 792 for unpainted Galvalume®

AZ50 per ASTM A 792 for painted Galvalume®

G90 per ASTM A 653 for Galvanized Gauges: 24 ga standard; 22 ga optional 24" or 18" panel coverage, 211/16" rib height Panel Length: Minimum: 5'; Maximum: 45' recommended Structural trapezoidal standing seam roof system Pittsburgh double flat locking mechanically-seamed side lap Factory-applied side lap sealant in panel and clip Minimum roof slope: 1/4:12 Panels can be factory-notched and punched Accommodates 1/2" to 6" blanket insulation

PANEL OVERVIEW

SEAM-LOC 24®

UL 2218 Impact Resistance - Class 4 UL 790 Fire Resistance Rating - Class A, per building code UL 263 Fire Resistance Rating - per assembly ASTM E 283 Air Leakage - 0.06 cfm/ft2 at 6.24 psf ASTM E 331 Water Penetration - none at 6.24 psf ASTM E 1680 Air Leakage - 0.0011 cfm/ft2 at 6.24 psf ASTM E 1646 Water Penetration - none at 12 psf ASTM E 1592 Structural Performance UL 580 Uplift Resistance - Class 90 Constructions: #197 and #197A FM 4471 Roof Approval - Class 1-90 and 1-165 2017 FBC Approvals - FL10999.8 and FL10999.9

TESTING AND APPROVALS

Factory-Applied Sealant

18" Coverage

C

Factory-Applied Sealant

24" Coverage

C

12 1/2"

18 1/2"

2 5/8"2 11/16"

2 5/8"2 11/16"

RR e f e r e n c e

M

S M

C /3

-2

Anchorage, AK 866.640.7663 Bay City, MI 888.777.7640 Deer Lake, PA 800.544.2577 Denver, CO 800.289.7663

Detroit Lakes, MN 888.594.1394 Fontana, CA 800.782.7953 Fort Smith, AR 877.452.3915 Independence, MO 800.747.0012

Jacksonville, FL 800.394.4419 Jefferson, OH 800.321.5833 Mocksville, NC 800.228.6119 Nashville, TN 800.251.8508 Rock Island, IL 800.747.1206 Rogers, MN 800.328.9316

Seattle, WA 800.431.3470 Sellersburg, IN 800.999.7777 Sioux Falls, SD 888.299.0024 Spokane, WA 800.572.6565 Temple, TX 800.543.4415 Woodland, CA 800.759.6019 metalsales.us.com

Clips

Fasteners

FASTENING INFORMATION

Clip spacing is based upon the design loads, the spanning capacity of the panels, the fasteners and the support members.

Clip Tabs are 0.037" thick, G90. Clip base is 0.060" thick, G60.

Floating Clips can accomodate 1-1/2" of thermal movement each way.

Overdriven fasteners will cause panel distortions.

Fasteners should extend 1/2" or more past the inside face of the support material.

Clip Fasteners:

Attaching to Wood:

#10-12 Pancake Head Wood Scrw Attaching to Steel:

<18 ga: 1/4"-14 Deck Screw >=18 ga, <=12 ga: 1/4"-14 Driller, No Washer >12 ga: 1/4"-24 Driller, No Washer

Exposed End Fasteners:

At Eave Plate or Compression Plate:

#12-14 XL Driller

Concealed End Fasteners:

At Compression Plate:

#12-14 Driller, No Washer

Trim Fasteners:

1/4"-14 x 7/8" XL Stitch Screw

SEAM-LOC 24®

SECTION PROPERTIES ALLOWABLE UNIFORM LOADS, psf For various clip spacings

Ga Width in

Yield ksi

Weight psf

Top In Compression Bottom In Compression Inward Load Outward Load Ixx in4/ft

Sxx in3/ft

Ixx in4/ft

Sxx in3/ft 2' 2.5' 3' 3.5' 4' 5' 2' 2.5' 3' 3.5' 4' 5'

24 24 50 1.09 0.2055 0.0952 0.0920 0.0653 342 227 161 120 93 60 70 64 59 54 49 38 24* 24 50 1.09 0.2055 0.0952 0.0920 0.0653 342 227 161 120 93 60 130 117 104 91 79 53 24 18 50 1.15 0.2480 0.1221 0.1220 0.0869 455 302 214 160 123 80 92 85 77 69 62 46 24* 18 50 1.15 0.2480 0.1221 0.1220 0.0869 455 302 214 160 123 80 167 150 133 116 99 65 22 24 50 1.43 0.2725 0.1263 0.1280 0.0882 458 305 217 161 125 81 74 69 64 59 54 44

ATTACHMENT DETAILS

PANEL CLIP

Clip

Seam-Loc 24® Panel

Factory-Applied Sealant

BEFORE SEAMING

AFTER SEAMING

Clip Fastener

Clip

Seam-Loc 24® Panel

Factory-Applied Sealant

Clip Fastener

S-5! Mini U Clamp (Optional)

1. Theoretical section properties have been calculated per AISI 2016 'North American Specification for the Design of Cold-Formed Steel Structural Members'.

Ixx and Sxx are effective section properties for deflection and bending.

2. Allowable load is calculated in accordance with AISI 2016 specifications considering bending, shear, combined bending and shear and deflection. Allowable load considers the 3 or more equal spans condition. Allowable load does not address web crippling, fasteners, support material or load testing. Panel weight is not considered.

3. Deflection consideration is limited by a maximum deflection ratio of L/180 of span.

4. Allowable loads do not include a 1/3 stress increase for wind.

RR e f e r e n c e

OPEN FRAMING OR

SOLID SUBSTRATE

COMMERCIAL

INDUSTRIAL

PANEL

24"

COVERAGE

MINIMUM

SLOPE

1/4:12

CONCEALED

FASTENED

Finishes: PVDF and Acrylic-Coated Galvalume®

Corrosion Protection: AZ55 per ASTM A 792 for unpainted Galvalume®

AZ50 per ASTM A 792 for painted Galvalume®

G90 per ASTM A 653 for Galvanized Gauges: 24 ga standard; 22 ga optional 24" panel coverage, 3" rib height Panel Length: Minimum: 5'; Maximum: 45' recommended Structural, trapezoidal standing seam roof system Snap-together side lap with factory-applied sealant in panel and clip Minimum roof slope: 1/4:12 Panels can be factory-notched and punched Accommodates 1/2" to 6" blanket insulation

PANEL OVERVIEW

SNAP-LOC 24

UL 2218 Impact Resistance - Class 4 UL 790 Fire Resistance Rating - Class A, per building code UL 263 Fire Resistance Rating - per assembly ASTM E 1680 Air Leakage - 0.005 cfm/ft2 at 6.24 psf ASTM E 1646 Water Penetration - none at 20 psf ASTM E 1592 Structural Performance UL 580 Uplift Resistance - Class 90 Construction: #240

TESTING AND APPROVALS

24" Coverage Factory-Applied Sealant

4.7"3"

18.8"

C

RR e f e r e n c e

M

SM

C

/1 -2

Anchorage, AK 866.640.7663 Bay City, MI 888.777.7640 Deer Lake, PA 800.544.2577 Denver, CO 800.289.7663

Detroit Lakes, MN 888.594.1394 Fontana, CA 800.782.7953 Fort Smith, AR 877.452.3915 Independence, MO 800.747.0012

Jacksonville, FL 800.394.4419 Jefferson, OH 800.321.5833 Mocksville, NC 800.228.6119 Nashville, TN 800.251.8508 Rock Island, IL 800.747.1206 Rogers, MN 800.328.9316

Seattle, WA 800.431.3470 Sellersburg, IN 800.999.7777 Sioux Falls, SD 888.299.0024 Spokane, WA 800.572.6565 Temple, TX 800.543.4415 Woodland, CA 800.759.6019 metalsales.us.com

Clips

Fasteners

FASTENING INFORMATION

Clip spacing is based upon the design loads, the spanning capacity of the panels, the fasteners and the support members.

Clip Tabs are 0.037" thick, G90. Clip base is 0.064" thick, G90.

Floating Clips can accomodate 1-1/8" of thermal movement each way.

Overdriven fasteners will cause panel distortions.

Fasteners should extend 1/2" or more past the inside face of the support material.

Clip Fasteners:

Attaching to Wood:

#10-12 Pancake Head Wood Screw Attaching to Steel:

<18 ga: 1/4"-14 Deck Screw >=18 ga, <=12 ga: 1/4"-14 Driller, No Washer >12 ga: 1/4"-24 Driller, No Washer

Exposed End Fasteners:

Attaching to Eave Plate or Compression Plate:

#12-14 XL Driller

Concealed End Fasteners:

Attaching to Compression Plate:

1/4"-14 Driller, No Washer

Trim Fasteners:

1/4"-14 x 7/8" XL Stitch Screw

SNAP-LOC 24

SECTION PROPERTIES ALLOWABLE UNIFORM LOADS, psf For various clip spacings

Ga Width in

Yield ksi

Weight psf

Top In Compression Bottom In Compression Inward Load Outward Load Ixx in4/ft

Sxx in3/ft

Ixx in4/ft

Sxx in3/ft 2' 2.5' 3' 3.5' 4' 5' 2' 2.5' 3' 3.5' 4' 5'

24 24 50 1.14 0.3070 0.1271 0.1250 0.0819 418 280 199 149 115 75 28 26 25 23 21 18 24* 24 50 1.14 0.3070 0.1271 0.1250 0.0819 418 280 199 149 115 75 107 97 86 76 65 44 22 24 50 1.49 0.4060 0.1679 0.1750 0.1117 578 385 274 204 158 102 35 33 31 28 26 22

Clip Snap-Loc 24 Panel

Factory-Applied Sealant

ATTACHMENT DETAIL

PANEL CLIP

Base

Base

ClipClip

7/8"

TabTab

Factory-Applied Sealant

Clip Fastener

S-5! Mini U Clamp (Optional)

1.TheoreticalsectionpropertieshavebeencalculatedperAISI2016'NorthAmericanSpecificationfortheDesignofCold-FormedSteelStructuralMembers'.
IxxandSxxareeffectivesectionpropertiesfordeflectionandbending.
2.AllowableloadiscalculatedinaccordancewithAISI2016specificationsconsideringbending,shear,combinedbendingandshearanddeflection.Allowable

load considers the 3 or more equal spans condition. Allowable load does not address web crippling, fasteners, support material or load testing. Panel weight is not considered.

3. Deflection consideration is limited by a maximum deflection ratio of L/180 of span.

4. Allowable loads do not include a 1/3 stress increase for wind.

* Loads determined using S-5! Mini U Clamp at each panel clip location.

S3.1 3/4" = 1'-0"

S3.1

SECTION @ ROOF

3/4" = 1'-0"

(E) 6 1/2 x16GA GIRT

(E) MTL PANEL

(E) 6 1/2 Z 14 PURLINS

@ 4'-2 5/16" O.C.

NEW MTL ROOF FASTENED

TO PURLINS

(E) 8" CEE x 16GA EAVE STRUT &

CONNECTIONS TO BE REMOVED

& REINSTALLED

REMOVE & REPLACE

SOFFIT AS REQ'D

(E) 8" CEE x 16GA EAVE

STRUT & CONNECTIONS

TO BE REMOVED &

REINSTALLED

1'- 0"

6"

TYP. 1/4

TYP. 1/4

TYP. 1/4 REMOVE EXIST. & REPLACE

W/ (4) NEW 3/4"Ø BOLTS

(TYP)

3/8" STL STIFF PLATES EACH

SIDE OF BEAM (TYP)

3/8" STL BOTTOM

PLATE @ COPE (TYP)

COPE W8 -FIELD VERIFY

STL PL 1/2 x 6 x 0'-8" LONG W/

3/8" GUSSET SUPPORT BRACKET

NEW W8 AT NORTH -

END

EXISTING AT SOUTH

END OF EX WALL

NEW STEEL

SHIM 3"x 6"x

THICKNESS

REQUIRED

3/4" +/- (F.V.)

FRONT AND REAR

OR ALTERNATIVELY

BOTH SIDES

(AT INTERFERENCE WITH CROSS BRACING BLOCK)

SUPPLIMENTAL DETAIL

3-20-25

Da te:

-15

-20

Dr aw n B y:

HM

M

NC

E

Pr oje ct #2

4-2

Ch ec ke d B y:

JE

A

Pr oje ct Na me

De vil s T rac k H atc he ry

Gr an d M ara is, M

N

FOR
SCOPE OF ADDENDUM
2025-03-21T11:18:19-0500
Vicki Dunnell

File details come from the government source that posted it. Updated .