W912BU-15-B-0016_Specs-AM1.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment your desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION

NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO.

IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

NSN 7540-01-152-8070

Previous edition unusable

W912BU

Painting and Repair Railings, Chesapeake City Bridge

THIS AMENDMENT DOES NOT EXTEND THE 21 SEPTEMBER 2015 BID OPENING DATE AT 1:30 P.M.

E5CTCSGF

US ARMY ENGINEER DISTRICT, PHILADELPHIA

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

US ARMY ENGINEER DISTRICT, PHILADELPHIA

POC: Robert Hilton

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

W912BU-15-B-0016

09/11/2015

08/20/2015

This page was intentionally left blank for duplex printing.

Amendment No. 0001

IFB W912BU-15-B-0016

14. DESCRIPTION OF AMENDMENT (continued)

a. BIDDING SCHEDULE: Please delete the Bidding Schedule in its entirety and substitute the revised Bidding Schedule, annotated Amendment No. 0001, attached hereto.

b. TECHNICAL SPECIFICATIONS:

(1) Section 01 11 00 – SUMMARY OF WORK: Please delete Section 01 11 00 in its entirety and substitute the revised Section 01 11 00, annotated Amendment No. 0001, attached hereto.

(2) Section 01 55 00 – TRAFFIC CONTROL: Please delete Section 01 55 00 in its entirety and substitute the revised Section 01 55 00, annotated Amendment No. 0001, attached hereto.

(3) Section 05 50 00 – MISCELLANEOUS REPAIRS: Please delete Page 05 50 00-3 in its entirety and substitute the revised Page 05 50 00-3, annotated Amendment No. 0001, attached hereto.

c. CONTRACT DRAWINGS:

(1) Please delete drawings S-501 and S-802 in their entirety and substitute the revised drawings, of the same drawing numbers, with the latest revision dates of 09 September 2015 and 11 September 2015, respectively, attached hereto.

d. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0001. Failure to acknowledge all amendments may be cause for rejection of the bid.

00 10 00-3

BIDDING SCHEDULE

(To be attached to SF 1442)

Item Estimated Unit Estimated No. Description Quantity Unit Price Amount

BASE BID: Northbound/East Side Railing Lead Base Paint Abatement, Painting and Repairs

1. Traffic Control 1 JOB LS $ ___________

2. Bridge and Stairway Railing Painting 5000 LF $______ $ ___________

3. Railing Repair 3a. Repair “A” 25 EA $______ $ ___________ 3b. Repair “B” 10 EA $______ $ ___________ 3c. Spindle Replacement 290 EA $______ $ ___________ 3d. Horizontal Spindle Replacement 8 EA $______ $ ___________ 3e. Post Cap Repair 31 EA $______ $ ___________ 3f. Fence Post Repair 14 EA $______ $ ___________ 3g. Rivet Repair 125 EA $______ $ ___________ 3h. Light Post Hand Hole Repair 11 EA $______ $ ___________ 3i. Missing Light Box Plate Replacement 1 JOB LS $ ___________ 3j. Stairway Handrail Repair 47 LF $______ $ ___________ 3k. Vehicular Damage Repair 1 JOB LS $ ___________

4. Remove & Replace Chain-Link Fence Fabric (Northbound/East Side) 4000 LF $______ $ ___________

5. Remove & Replace Chain-Link Fence Fabric (Southbound/West Side) 4000 LF $______ $ ___________

TOTAL ESTIMATED BASE BID AMOUNT $ ________________

OPTION 1: Southbound/West Side Railing Lead Base Paint Abatement, Painting and Repairs

6. Traffic Control 1 JOB LS $ ___________

7. Bridge Railing Painting 4000 LF $______ $ ___________

8. Railing Repair 8a. Repair “A” 29 EA $______ $ ___________ 8b. Repair “B” 10 EA $______ $ ___________ 8c. Spindle Repair 215 EA $______ $ ___________ 8d. Post Cap Repair 11 EA $______ $ ___________ 8e. Rivet Repair 125 EA $______ $ ___________

00 10 00-4

TOTAL ESTIMATED OPTION 1 AMOUNT $ ________________

TOTAL ESTIMATED BASE BID AND OPTION 1 AMOUNT $ _____________

NOTES:

1. Bidders must bid on all items.

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 SCOPE OF SECTION

This section presents a general description of the work to be accomplished under this contract for removal of lead-based paint and soluble salts, surface preparation, repair, and painting of steel railings and structural supports and chain-link fence supports; and replacement of chain-link fence fabric at Chesapeake City Bridge, located on U.S. Route 213 in Chesapeake City, Maryland.

1.2 DESCRIPTION OF BASE BID WORK

The major items of work to be performed under the base bid include, but are not limited to, the following:

a. Provide all traffic control in accordance with a Contractor-prepared, MDDOT approved, traffic control plan to implement lane closures for the period of the Base bid work.

(Deleted)

b. Removal of existing coatings, including lead-based paint and soluble salts removal, in accordance with the Contractor submitted and Government approved plan, at the steel railings and structural supports and chain-link fence supports on the Northbound side of the Chesapeake City Bridge. The work on this side also includes the stairways. Make repairs as required. Apply new coating system in same area, as indicated.

c. Remove and replace chain-link fence fabric on the Northbound and Southbound side of the Chesapeake City Bridge.

1.3 DESCRIPTION OF OPTION 1 WORK

The major items of work to be performed under Option 1 include, but are not limited to, the following:

a. Provide all traffic control in accordance with a Contractor-prepared, MDDOT approved, traffic control plan to implement lane closures for the period of the Option 1 work.

(Deleted)

b. Removal of existing coatings, including lead-based paint and soluble salts removal, in accordance with the Contractor submitted and Government approved plan, at the steel railings and structural supports and chain-link fence supports on the Southbound side of the Chesapeake City Bridge. Make repairs as required. Apply new coating system in same area as indicated.

1.4 ORDER OF WORK

All work specified to be performed under the Base bid and Option 1 portion of this contract shall be performed during the MDDOT approved lane closures

Section 01 11 00 Page 1 under the Contractor's approved traffic control plan.

The railing work shall be performed in the following order:

a) Remove chain-link fence fabric, as required, to perform railing work.

Any area where chain-link fence fabric is removed must be replaced with temporary project safety fence as specified in Section 01 50 00 TEMPORARY

CONSTRUCTION.

b) Remove all existing coatings.

c) Make all repairs.

d) Prepare all areas for coating system.

e) Apply coating system.

f) Install new chain-link fence fabric.

The Base bid and Option 1 work, may be executed at the same time but only 1 lane closure will be permitted at a time.

1.5 RESTRICTIONS ON WORK

The Contractor may not completely close the bridge at any time. Only 1 lane closure will be permitted at a time.

The Contractor shall be limited to one-half of the main span (in a north-south direction) at a time when erecting his containment structure, removing lead-based paint, and painting. The Contractor shall not impact the vertical navigation clearance under the half of the main span not being worked on. The Contractor shall, upon the Contracting Officer's approval, dismantle and re-erect his containment structure over the second half of the main span after completion of work on the first half.

1.6 EXISTING UTILITIES

Electrical and utility lines exist in the vicinity of, and cross under the Chesapeake City Bridge. Existing 120/240 volt electrical power for security and navigation aide, lights, and communication lines transversing the bridge are not shown on the as-built drawings provided. The Contractor shall identify and tag these lines as necessary to caution his employees and shall not operate equipment or booms in their vicinity. The Contractor shall locate and protect these lines and associated appurtenance during the execution of work specified herein.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION (Not Applicable)

-- End of Section --

Section 01 11 00 Page 2

SECTION 01 55 00

TRAFFIC CONTROL

PART 1 GENERAL

1.1 SCOPE

The work covered by this section consists of furnishing all labor, materials, plant and equipment, and performing all operations required for the maintenance and protection of vehicular traffic passing through the contract work areas.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

MARYLAND STATE HIGHWAY ADMINISTRATION (MDSHA)

MDSpecs (2008 and Revisions) Standard Specifications for Construction and Materials

MDMUTCD Maryland Manual on Uniform Traffic Control Devices - 2012 Edition and Revisions

DELAWARE DEPARTMENT OF TRANSPORTATION (DelDOT)

DelDOT Traffic Control Manual (July 23, 2001, Change 1)Traffic Controls for Streets & Highway Construction, Maintenance, Utility & Emergency Operations.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI 107 1999 High Visibility Safety Apparel

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

NOTE: Any submittals classified as "SD-01 Preconstruction Submittals" are submittals required to be submitted to, and approved by, the office indicated prior to mobilization to the contract work site. All other submittals, classified as "SD-02" through "SD-11," shall be submitted to, and approved or reviewed by, the office indicated prior to commencing the particular task to which the submittal is associated.

SD-01 Preconstruction Submittals

Traffic Control Plan; G,DO.

Section 01 55 00 Page 1

The Contractor shall develop and submit a Traffic Control Plan to:

the Maryland State Highway Administration District Office for approval by their Assistant District Engineer for Traffic; and, to the Delaware Department of Transportation. The plan shall include, but not be limited to: the lane closure schedule; proposed signage; proposed temporary traffic control signals; alternate route description; sign placement locations; variable message signs' locations and wording at each location; cone placement and spacing; standards being used, POC's notified, including 911 centers; POC method of contacting Contractor; procedures for giving emergency vehicles the right-of way; device (dedicated telephone number and travel advisory radio) to provide continuous travel advisory information to the public; qualifications of traffic control manager; and flagger Maryland-issued certifications. Two copies of the approved Traffic Control Plan shall be submitted to the Contracting Officer prior to the start of work.

SD-07 Certificates

Traffic Control Device Certification; G,DO

The Contractor shall submit written certification that all traffic control devices in Maryland conform to the requirements of the MD MUTCD and are on the Office of Traffic and Safety's (OOTS) Qualified Product List (QPL), and all traffic control devices in Delaware conform to the DelDOT Traffic Control Manual.

Notifications

The Contractor shall submit copies of written monthly traffic plan notifications to all points of contact in Paragraph POINTS OF CONTACT and Paragraph NOTIFICATIONS.

1.4 POINTS OF CONTACT

Point of contact in the Maryland State Highway Administration is:

Jeff Wentz Assistant District Engineer - Traffic State Highway Administration Maryland Department of Transportation 615 Morgnec Road P.O. Box 299 Chestertown, MD 21620 Phone: 410-810-3240 Email: Jwentz@sha.state.md.us

Point of contact in the Delaware Department of Transportation

Stephen G. Treut, PE Signal Construction and Maintenance Manager 169 Brick Store Landing Rd Smyrna, DE 19977 Email: Steve.Treut@state.de.us Phone: 302-659-2020

Maryland State Highway Administration Hauling Permits:

Section 01 55 00 Page 2

(800) 846-6435

1.5 TRAFFIC CONTROL MANAGER

The Contractor shall employ a full-time traffic control manager. This traffic manager shall have no other duties. The traffic control manager shall have 5 years of current experience in traffic control management on projects similar in size and scope to this contract. The traffic control manager shall be certified as a Traffic Control Supervisor by the American Traffic Safety Services Association (ATSSA) and meet the requirements of MDSpecs Section 104.18, Traffic Manager.

AMERICAN TRAFFIC SAFETY SERVICES ASSOCIATION (ATSSA)

15 Riverside Parkway, Suite 100 Fredericksburg, VA 22406-1022 Ph: 540-368-1701 - 800-272-8772 Fax: 540-368-1717 http://www.atssa.com

PART 2 PRODUCTS

2.1 EQUIPMENT

Traffic control devices (signs, lights, reflectors, barricades, signals, etc.) shall conform to the requirements of the MDSpecs, MDMUTCD, OOTS-QPL, DelDOT Traffic Control Manual and as the MDSHA District 2 Traffic Engineer and DelDOT may direct for the safety of the traveling public and protection of the work area.

PART 3 EXECUTION

3.1 ALTERNATE ROUTE/DETOUR

The following alternate/detour route shall be instituted. The alternate route/detour for northbound traffic shall begin at Galena, MD, taking MD 290 north to US301/MD896 north, which becomes US301/DE 896 and DE 896, then west at intersection with US40, and ending at intersection with MD 213 north. Southbound traffic shall use the same route in reverse.

3.2 NOTIFICATIONS

3.2.1 Maryland State Highway Administration Hauling Permits:

The Contractor shall notify the Maryland State Highway Administration a minimum of 2 weeks prior to implementing any traffic control to request the rerouting of permits and suspension of blanket permits for the duration of the contract work. The Contractor must notify the Maryland State Highway Administration at the conclusion of the work in order that permitting may resume.

3.2.2 Monthly Notifications

The Contractor shall provide a tentative schedule of lane closures on a monthly basis to the Contracting Officer and to the following agencies:

Cecil County Sheriff's Dept Traffic and Safety Officer 500 Landing Lane

Section 01 55 00 Page 3

Elkton, MD 21921

(410) 996-5500

Chesapeake Volunteer Fire Co Traffic and Safety Officer 215 Lock St Chesapeake City, MD 21915

(410) 885-5951

Cecil County Department of Emergency Services Traffic and Safety Officer 107 Chesapeake Blvd., Suite 108 Elkton, MD 21921

(410) 392-2014

Maryland State Police Traffic and Safety Officer 2433 Pulaski Hwy North East, MD 21901

(410) 398-8101

Maryland DOT Statewide Operations Center 410-865-1142 (in-state) 888-713-1414 (out-of-state)

Cecil County Public Schools Ms. D'Ette Devine, EdD.

Superintendent of Schools 201 Booth Street Elkton, MD 21921

(410) 996-5400

Cecil County Dept. of Public Works Roads Division Mr. Dan Webber 129 E. Main St.

Elkton, MD 21921

(410) 996-6270

3.3 TRAFFIC CONTROL DEVICES

3.3.1 General

The Contractor shall provide all necessary flagger services, temporary traffic control signals variable message signs, variable message signs equipped with radar, ground-mounted signs, STOP/SLOW paddles, floodlights, flashing warning lights and arrow boards, barricades, cones, markers, two-way radios, and other protective devices necessary to warn and protect the traveling public, pedestrians and his own employees in accordance with the approved Traffic Control Plan. All devices shall be maintained by the Contractor in first-class operating condition throughout the contract period. Conditions of signs, signals, warning lights, barricades, and other traffic control devices shall be recorded daily on the Quality Control Records required in Section 01 45 00 QUALITY CONTROL.

3.3.2 Worker Protection

All Contractor personnel exposed to the risks of moving roadway traffic or

Section 01 55 00 Page 4 construction equipment shall wear high-visibility safety apparel meeting the requirements of ISEA “American National Standard for High-Visibility Safety Apparel”, or equivalent revisions, and labeled as ANSI 107 standard performance for Class 1, 2, or 3 risk exposure when working on or around the road. In addition, the Contractor shall store and supply, when needed, ten highway work vests for the Contracting Officer representatives and other Corps of Engineers personnel.

3.3.3 Truck-Mounted Attenuators

The Contractor shall provide Alpha 60 truck-mounted attenuators, or approved equal, for the protection of workers in the closed lane during all lane closure periods. The traffic will be traveling in alternating north and south directions as a result of a single lane traffic control procedures, requiring that two truck-mounted attenuators be in use by the Contractor at each end of the immediate work area around Contractor personnel or equipment on the bridge.

3.3.4 Bridge Control Standard

The flagging operation or temporary traffic control signals and speed limits on the main span shall be subject to Section 6C.11 of the MDMUTCD.

3.3.5 Alternate Route/Detour Signs

All alternate route signs shall be temporary, ground-mount signs or Variable Message Signs (VMS)/Portable Changeable Message Signs (PCMS) as described herein. The alternate route/detour shall have trailblazers and confirmatory signage at intersections. All temporary signs shall be in accordance with the Section 6F of the MDMUTCD. This includes sign and post materials, color, dimensions, shape and wording, placement distance from roadway, and height above ground. Temporary signs shall be secured to the ground with sandbags.

3.3.5.1 Variable Message Signs (VMS)

The Contractor shall consult with MDSHA for proper VMS wording, and final VMS wording shall be approved in the traffic plan by MDSHA. The Contractor shall provide variable message signs (VMS), solar-type, with appropriate cone taper, at the following locations:

a. US 40 eastbound at MD 213.

b. US 40 westbound at MD 213.

c. MD 213 southbound at US 40.

d. MD 213 northbound at MD 290/MD 313.

e. MD 290/MD 313 northbound at MD 213.

f. US 301 northbound at MD 290.

g. At the beginning of the each approach to the bridge (2).

h. US 301 northbound at US 40 westbound.

i. US 40 eastbound at US 301 southbound.

j. DE 896 southbound at US 40 eastbound.

k. MD 213 northbound at MD 310

The signs shall be operational, flashing messages for the alternate route during lane closures. Up to two additional VMS may be required.

Section 01 55 00 Page 5

3.3.5.2 Signage Coordination

A signage meeting shall be set up between the Contractor, MDSHA, DelDOT, and the Government, prior to sign placement. The Contractor shall consult with the Maryland State Highway Administration Point of Contact for proper sign placement at each intersection in Maryland, and the Delaware Department of Transportation Point of Contact for proper sign placement at each intersection in Delaware.

3.3.6 Variable Message Signs (VMS) Equipped with Radar

The Contractor shall provide, at the north and south approaches to the main span, during lane closures, VMS equipped with radar. The signs shall be similar to those described above. The VMS shall be equipped to provide a read-out of the required speed limit and the passing vehicle's actual speed. These signs shall be operational during lane closures.

3.3.7 Lane Closure Schedule Signs

Ground-mounted signs shall be erected at the North and South approaches detailing the dates and times of all projected lane closures. Included on this sign shall be the Contractor's travel advisory radio band and phone number.

(Deleted)

3.4 UTILITIES

Prior to erecting any devices in the ground, the Contractor shall notify Miss Utility (1-800-257-7777)in order to locate utilities in the area.

3.5 INSTALLATION SCHEDULE

All temporary ground-mounted signage and VMS shall be placed a minimum of 2 weeks prior to initiation of traffic control. These signs shall be securely covered until utilized. The VMS shall start flashing advisory messages a minimum of 1 week prior to any lane closure. The temporary ground-mounted signs shall be uncovered at the initiation of the lane closure.

3.6 CONTINUOUS TRAFFIC ADVISORY

The Contractor shall provide a dedicated toll-free (800) telephone number and a mobile Travel Advisory Radio (TAR). The telephone number shall be manned during Contractor working hours. The TAR shall provide continuous travel advisory information including current and projected lane closures to the public. The VMS and other temporary signs shall publish the telephone number and TAR frequency for the public to obtain this continuous travel advisory information when not directing traffic on alternate routes/detours during lane closures.

3.7 LANE CLOSURES

The Contractor shall notify the Contracting Officer, and the point-of-contacts specified in paragraph 1.4 POINTS OF CONTACT and paragraph 3.2.2 NOTIFICATIONS, a minimum of 1 week prior to requiring a lane closure. All lane closures shall be subject to the final approval of MDSHA as part of the Traffic Control Plan and lane closure permits shall be obtained from MDSHA District 2. A minimum open lane width of ten feet shall be maintained at all times. The Contractor shall minimize the length of

Section 01 55 00 Page 6 the lane closure by only closing a lane around the area that they are working in. All lanes shall be open if the Contractor stops work for seven days or more and during all special events, as defined by the COR.

3.8 SPEED LIMIT

During lane closure periods, the entire construction work zone shall be posted for a speed limit as specified in the MDMUTCD.

3.9 DEBRIS

The traffic lanes of the bridge and the approach roadways within the limits of work shall be kept clear of all debris.

3.10 MEASUREMENT AND PAYMENT

All work specified in this section will not be measured for payment and all costs in connection therewith shall be included in the contract lump sum price for the Base Bid and Option Bid Items titled "Traffic Control".

Payment for this bid item shall constitute full compensation to the Contractor for providing all traffic control, including developing and obtaining approval of a traffic control plan by MDSHA, and providing all traffic control devices, flagger and similar services.

(Deleted)

-- End of Section --

Section 01 55 00 Page 7 shall be accompanied by a current certificate by the welder attesting to the fact that he has been engaged in welding since the date of certification, with no break in welding service greater than 6 months.

Conform to all requirements specified in AWS D1.5M/D1.5.

1.5 GENERAL REQUIREMENTS

The Contractor shall verify all measurements and shall take all necessary measurements prior to fabrication. The Contractor shall be responsible for correctness of detailing and fabrication.

PART 2 PRODUCTS

2.1 STEEL FABRICATIONS

Structural steel shall be in accordance with the following requirements:

Wide Flange Members ASTM A992/A992M, Grade 50.

Base Plates, Lateral Moment Plates, Spindles and Splice Plates ASTM A572/A572M, Grade 50.

Angles, Channels, and other Plates ASTM A36/A36M

(Deleted)

All steel shall be cleaned and coated in accordance with Section 09 97 02 PAINTING, after fabrication.

2.2 FASTENERS

High strength bolts shall meet the requirements of ASTM A 325. Nuts and washers shall conform to ASTM A 563 and ASTM F 436 respectively.

PART 3 EXECUTION

3.1 GENERAL INSTALLATION REQUIREMENTS

Existing steel in the vicinity of the work shall be cleaned and coated in accordance with Section 09 97 02 PAINTING, prior to installing new steel fabrications. Any damage to coating on newly installed steel due to subsequent paint operations shall be repaired as directed by the COR at no additional cost.

3.2 MISCELLANEOUS REPAIRS

Repairs shall be as indicated. Where repairs require rivet removal and bolt installation refer to paragraph below. Where repairs require welding see paragraph "Welding". Other miscellaneous repair details shall be as specified herein and as detailed on the drawings.

3.2.1 Rivet Removal and Bolt Installation

Requirements specified herein apply to all Bid Items requiring rivet removal and/or bolt installation/replacement. Rivets shall be removed by

Section 05 50 00 Page 3 shearing the rivet head using a pneumatic breaker, and driving out rivet shank with a pneumatic punch. If, in the opinion of the COR, the rivet shanks cannot be removed by punching without damaging the base metal, remove the shank by drilling. New high-strength bolts of the same nominal diameter as the rivets being removed shall be installed. Bolts of sufficient length to project a minimum of 1/16th inch beyond the nut shall be used. If the new bolt cannot be placed in the hole originally occupied by the rivet, ream the hole to the proper size. If an oblong hole results with the largest dimension more the 3/16" larger than the diameter of the rivet, increase the bolt diameter by one size and ream the hole to fit the larger bolt. Bracket fastening bolts shall have minimum final tension as shown or as otherwise directed.

3.2.2 High-Strength Bolts

High strength bolts installed in structural steel members shall be installed and tested in accordance with AASHTO LRFDCONS Specification section 11.5.6.4. All bolts shall be snug tight.

3.3 WELDING

AWS D1.5M/D1.5. Grind exposed welds smooth. Provide AWS D1.5M/D1.5 qualified welders, welding operators, and tackers.

The Contractor shall develop and submit the Welding Procedure Specifications (WPS) for all welding, including welding done using prequalified procedures. Prequalified procedures may be submitted for information only; however, procedures that are not prequalified shall be submitted for approval.

3.4 FIELD QUALITY CONTROL

Perform field tests, and provide labor, equipment, and incidentals required for testing. The Contracting Officer shall be notified in writing of defective welds, bolts, nuts, and washers within 7 working days of the date of weld inspection.

3.9.1 Welds

3.9.1.1 Visual Inspection

AWS D1.5M/D1.5. Furnish the services of AWS-certified welding inspectors for fabrication and erection inspection and testing and verification inspections. Welding inspectors shall visually inspect and mark welds, including fillet weld end returns.

3.5 MEASUREMENT AND PAYMENT

3.5.1 Repair "A"

The work specified for railing repairs at locations indicated for Repair "A", will be measured for payment for each Repair "A" location satisfactorily repaired and accepted. All costs in connection therewith shall be included in the contract unit price for the Base Bid and Option Bid Items titled "Repair "A"".

3.5.2 Repair "B"

The work specified for railing repairs at locations indicated for Repair

Section 05 50 00 Page 4