SOW for RCAG Tower Replacement Project.pdf

Statement of Work

WS-21-0704

RCAG Tower Replacement Project Miles City, Montana

January 2021

Introduction: The FAA is planning to select a contractor for Mile City telecommunication tower replacement project including demolition of existing towers, and design, manufacture and installation of new RCAG towers at FAA MLS facility located at Miles City, MT.

Project Description: The MLS RCAG facility will have three (3) new 30ft Self Standing towers installed. The towers will be supported by concrete foundations, type TBD based on the soil conditions. Telecommunication equipment and electronic cables are mounted on the tower platform as detailed in construction drawings and project specification. The towers also consist of lightning protection system to be connected to the existing grounding system. The existing MLS site consists of four existing 30ft guy-wire towers located at a plot approximately 125’ x 125’. The site are located at Miles City, MT. The project includes design, procurement and installation of new towers and associated platform, design/construction of foundations, procurement/installation of electronic cables, lightning protection system, prefabricated manholes, enclosures, conduits and associated material, hardware and connectors as required.

The project also includes refurbishment of the shelter including the replacement of the floor tile and entrance doors and slab per construction drawings. The project includes all construction activities required to complete the project per specifications and construction drawings. All existing guy –wire towers to be demolished and the material to be recycled or disposed per this project.

The existing site plans of MLS site is shown in appendix A. The proposed locations of the towers is shown in construction drawings attached to this document.

Local district System Support Center (SSC) will provide the necessary escort to the site.

Note: The procurement and installation of electronic cables from tower junction box to communication antennas and from building junction box to radio racks inside the building, as well as procurement and installation of communication antennas are excluded from this scope of work. (GFM are provided in section 1 11 00 project specification)

Task Description: The contractor shall provide all personnel, equipment, tools, materials, supplies, supervision, labor and other items and services necessary to design, fabricate, prepare for shipment, delivering and installation of new towers and demolition of existing towers for Miles City Tower replacement project. The contractor is responsible for all work activities to complete the Miles City tower replacement project as detailed in project specifications and construction drawings attached to this Statement of Work (SOW) and in accordance with the latest version of the applicable codes and standards as referenced to the project specifications.

Work includes but not limited to:

1. Perform an independent underground utility locate prior to the excavation. Perform onsite review of marked locations with FAA and Resident Engineer (RE) / Contract Officer Representative (COR) prior to excavation activities. Some areas may require hand digging to ensure no interruptions will occur

2. The demolition - construction of towers to be conducted in distinct phases per sequences specified in the construction drawings

3. Quality Control concrete testing shall be done by an independent testing agency approved by the FAA

4. Contractor is responsible for demolition and recycling of four (4) existing guy-wire towers at MLS site and associated structure, foundation, existing antennas and all associated antenna material including conduits, antenna mounts, grounding, antenna cable enclosures, tower lights, coaxial cables, power line and lightning protection materials, manhole and trenches

5. Removal of shelter floor tile (equipment room) and replace with new tile, replace shelter entrance doors and concrete slab and dispose waste material per construction drawings and project specifications.

6. Contractor is responsible to perform abatement where activities impact existing regulated materials in accordance to project specifications, local, state and federal requirements. Remove and properly dispose of all waste materials from the site.

7. Contractor is responsible to design, supply and construction of the tower foundation (type TBD), per TIA-222-H standard requirements, project specifications and site geotechnical report recommendations. Design calculation report and construction drawings shall be provided by contractor and approved by FAA.

8. The contractor to purchase and deliver three (3) new 30’ self-supporting RCAG communication antenna towers to MLS site. The towers will be delivered to the site by the tower fabricator or contractor. Contractor shall provide the complete tower in accordance with all specification requirements including anchor bolts, safety ladder, safety climbing devices, anti-climbing device/tower ladder door, eight fully operational/retractable swing-arm antenna mounts, two (2) air terminal support masts, lockable access hatches and all other hardware essential for erecting the tower. The supply list shall be completed per project specifications and construction drawings. It is the responsibility of the contractor or its subcontractor to provide the design of the antenna towers. Calculation report and construction drawings shall be provided and approved by FAA.

9. Hot dipped galvanized and coat per Section 09 97 00, Special Coatings, tower elements and fasteners as required to minimizing the possibility of premature corrosion.

10. Contractor is responsible for offloading and installing the new towers. Contractor shall be responsible for touching up any damaged paint and/or galvanization sections of the tower during construction.

11. Supply and install of one NEMA 4x SS electronic enclosure (J-box) on each tower platform per construction drawings. Supply and install the J-box supports.

12. Supply and install of two NEMA 4x SS enclosure to be mounted on external walls of the building (one J-Box each side) per construction drawings. Supply and install the J-box support.

13. Supply and install electronic coaxial cables and connectors between tower J-box and building J-box per construction drawings. Provide supports on tower and coaxial cable shield grounding kit on each antenna tower. Supply RGS conduits for containing the coaxial cables including all elbows, clamps, and supports for installation or connection. Excavate trenches from new towers to the building for RGS conduits. The conduits shall be buried per construction drawing and the trenches shall be backfilled after conduit installed.

14. Provide coaxial cable tests and test report.

15. Supply and install one obstruction light per tower and provide and install power cables per construction drawings. Provide supports on tower and shield grounding kit on each antenna tower. Supply RGS conduits for containing the power cables including all elbows, clamps, and supports for installation or connection. Excavate trenches from new towers to the building for RGS conduits. The conduits shall be buried per construction drawing and the trenches shall be backfilled after conduit installed. Provide and install electrical enclosures, cables and all associated connections and conductors to main panel board inside the building per construction drawings and specifications.

16. Electrical grounding and lightning protection at communication antenna towers: This includes: Excavate and backfill perimeter trench around new antenna towers for new EES, Modify existing RCAG facility EES and bond new antenna tower EES to the modified EES;

Provide air terminals and down conductors on antenna towers; Provide antenna tower electrical ground bonds to ladder, antenna cables enclosures, structural steel, foundation rebar, antenna mounts, and coaxial cable shields; Provide conductors/conduit to bond down conductors and antenna cable enclosures per construction drawings;

17. Perform earth resistance tests of new EES system and provide written test reports.

18. Contractor is responsible for terminations and testing of towers’ ground connections.

19. Contractor to provide two (2) Dyna-Glide Climbing Protection System Fall Arresters per site. The fall arresters shall be delivered at the same time as the climbing protection system and remains on-site after project is completed.

All material shall be delivered at construction FAA MLS site located at Miles City, MT.

Additional Information: Public underground utility lines, power and phone shall be located by calling 811 and coordinating with the city entities. Also, locate private FAA utilities including power and comm./telecom cable. Contractor must use ground penetrating radar (GRP) or equivalent technology to locate private FAA utilities. Clearly mark all findings before starting any excavation/digging or other underground activities. All permits and work plans shall be submitted and approved before work is started. Access to the site must be coordinated with the FAA in advance.

Project Specific Work Plans: The contractor is required to submit written work plans in accordance with the submittal requirements set out in section 01 33 00, Submittal Procedures, for critical items of work set out in this section, in the technical specifications, or elsewhere in the contract documents. Work associated with the required work plans shall not commence until approval has been provided.

Work Plan shall address the site safety plan, underground utility damage prevention, crane work, fall protection, risk management plan, hazard assessment of the work site, pre-installation work plan, construction schedule and demolition plan.

Requested Submittals: The contractor is solely responsible for creating a Submittal Schedule identifying whether the submittals are samples, cut sheets, certified test results, and adding additional submittals as required by specifications, drawings or as recommended by a manufacturer. As applicable, the submittal schedule must state the action required for testing and inspection with the name of the persons authorized to review the submittal. The contractor shall submit the Submittal Schedule to the contracting officer for approval. See section 01 33 00 of project specification for complete submittal list and submittal procedure. At a minimum, the following preconstruction submittal items must be provided to the FAA for review and approval before notice to proceed:

1. Work break down structure (WBS) including construction schedule details

2. Contractor site-specific safety plan

3. Reinforcing steel Data sheet

4. Asbestos contingency plan

5. Concrete mix design

6. Contractor personnel climbing certificates

7. List of proposed subcontractors

Contractor shall provide construction submittal items as listed in section 1 33 00 to the FAA for review and approval prior to installation including but not limited to:

1. Substitutions and all requested changes

2. Subsurface Locate Contractor Qualifications

3. Material safety data sheets, certification, manufacture catalog and instructions

4. Test reports ,

5. Delivery tickets

6. Tower manufacturer specification and drawings

7. Qualifications and Certifications of independent inspections and testing firms.

8. Design data including calculation report, construction drawing, mix designs, analyses or other data pertaining to a part of work.

Warranties & Guarantees: Contractor must provide warranties/guarantees executed by the respective manufacturers, suppliers, and subcontractors for all installations as required in the contract or as is customarily provided with the particular piece of equipment or system. All warranties are to be executed, in writing, for the benefit of the FAA. Contractor must provide complete information for each item per project specification.

Cleaning and Waste Management: Contractor is required to maintain the worksite including storage areas clean and orderly during progress of the work per project requirements and specifications. The contractor will be personally responsible for the storage of tools and materials.

The contractor must require each subcontractor engaged upon the work to bear full responsibility for cleaning up during and immediately upon completion of their work.

Prior to final inspection, thoroughly clean entire worksite and exterior and interior of any building, remove debris and rubbish, remove tools and reseed disturbed areas as detailed in section of 1 74 00 of project specification.

Closeout: The contractor must coordinate with the resident engineer (RE), the date to schedule the Contractor Acceptance Inspection (CAI) per project specification requirements (See Section 1 77 00 of project specification).

The RE shall conduct an inspection of the facility to verify all contract conditions are met.

Prior to final acceptance, the contractor must assemble all appropriate warranties, product information, certifications, equipment installation instructions, Safety Data Sheets (SDS), and the results of all tests.

Appendix A: MLS Existing Site Plan

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

REV DESCRIPTION JCN

DATE

REDLINE

APVD

SUBMITTED BY APPROVED BY

JCN

DRAWN

CHECKED

REV

ISSUED BY

H

G

F

E

D

C

B

A

H

G

F

E

D

C

B

A

8 1234567

8 1234567

DATE

DRAWING NO

DESIGNED

REVIEWED BY

:0

:0

P M

A b b a s s

A

Z a k e r i

DATE

APPROVED

M L

S

D

R C

A G

C .d g n

NEW FACILITY

NEW EES

EXISTING FACILITY

LEGEND

NEW GROUND ROD

EXISTING GROUND ROD

EXISTING GROUND WIRE

LINE

EXISTING TELEPHONE

NOTES

A

B

C

D

CONSTRUCTION

E

F

G

H

I

J

K

L

M

TEMPORARY FACILITIES AND THEIR ASSOCIATE STRUCTURE.

ACTIVE BY THE FAA, THE CONTRACTOR CAN PROCEED TO DEMOLITION OF THE

ONCE ALL RADIO FREQUENCIES MIGRATED TO THE FINAL LOCATION AND DEEMED

INSTALLATION TEAM AS REQUIRED.

ANTENNA CONNECTIONS WILL BE PROVIDED UNDER SUPERVISION FAA ELECTRONIC

NUMBER OF ANTENNAS AT THE NEW TOWER CANNOT EXCEED 8. TEMPORARY

POSITIONS TO THE FINAL POSITIONS ON NEW CONSTRUCTED ANTENNA TOWERS. THE

THE NEW TOWER AND/OR MIGRATE THE RADIO FREQUENCIES FROM THE TEMPORARY

WILL COORDINATE WITH THE LOCAL SSC AND RE TO INSTALL NEW ANTENNAS ON

STRUCTURES HAVE BEEN COMPLETED, THE FAA ELECTRONIC INSTALLATION TEAM

AFTER CONSTRUCTION OF THE NEW ANTENNA TOWER "C" AND IT’S ASSOCIATED

ADJACENT PAVING MATERIAL.

DENSITY AND PATCH THE AFFECTED AREA TO MATCH EXISTING GRADE AND

BACK FILL ALL HOLES CREATED BY CONSTRUCTION. COMPACT THE SOIL TO 95%

ELECTRICAL DRAWINGS.

NEMA 4X, HOFFMAN OR FAA APPROVED EQUAL MOUNTED ON THE TOWER PER

INSTALL ONE (1) NEW STAINLESS STEEL ENCLOSURE, 36"H X 30"W X 10"D

SOUTH WALL. COORDINATE WITH RE AND SSC FOR LOCATION OF THE J-BOX.

NEMA 4X, HOFFMAN OR FAA APPROVED EQUAL MOUNTED ON BUILDING EXTERIOR

INSTALL ONE (1) NEW STAINLESS STEEL ENCLOSURE, 36"H X 30"W X 10"D

SPECIFIED LOCATION NEAR THE SHELTER. SEE DETAIL E ON SHEET C006.

PROVIDE ONE 48" X 48" X 48" PREFABRICATED HS-20 LOADING MANHOLE IN THE

THE SPECIFIED LOCATION NEAR THE TOWER. SEE DETAIL B ON SHEET C006.

PROVIDE ONE 44" X 32" X 42" PREFABRICATED HS-20 LOADING HANDHOLE AT

CABLES WHEN TRENCHING AROUND EXISTING STRUCTURES.

CORNER OF THE SITE. CONTRACTOR SHALL HAND DIG TO LOCATE ALL UNDERGROUND

TRENCH FROM BUILDING TO LOCATION OF THE NEW TOWER IN THE NORTH-WEST

LIGHTNING PROTECTION SYSTEM.

POWER LINE, CONDUITS, UNISTRUTS, CABLE JUNCTION BOX, CONNECTORS, AND

NEW TOWER. THIS INCLUDES BUT IS NOT LIMITED TO INSTALLING TOWER STRUCTURES

IN THE SPECIFIED LOCATION (AT THE NORTH-WEST SIDE OF THE SHELTER). INSTALL

CONSTRUCT FOUNDATION FOR THE NEW 30’ SELF-SUPPORTING ANTENNA TOWER

BE REPLACED BY CONTRACTOR.

AND AFTER INSTALLATION. ANY DAMAGED CABLES AFTER INSTALLATION SHALL

ALL COAXIAL CABLES SHALL BE TESTED AND FAA-APPROVED PRIOR TO

LOCATION. VERIFY SITE UTILITIES BEFORE START OF EXCAVATION.

TENTATIVE. CONTRACTOR TO COORDINATE WITH SSC AND RE FOR FINAL

ACCESS ROUTE AS NEEDED. THE LOCATION OF THE TOWER FOUNDATIONS IS

COORDINATE WITH RE AND SSC. CONTRACTOR TO COORDINATE WITH RE FOR

LOCATE AND SETUP THE STAGING AREA AND TEMPORARY FACILITIES.

PREPARE THE SITE FOR CONSTRUCTION OF NEW SELF-STANDING TOWER "C".

AND DEMOLITION OF THE SITES.

SEE NOTE S1 OF DRAWING MLS-707519-C001 FOR SEQUENCES OF CONSTRUCTION

MLS-707519-D002.

OF TOWER "C" WILL BE AFTER DEMOLITION OF TOWERS "1" & "2" PER DRAWING

TEMPORARY POSITIONS (AS REQUIRED) AND DEEM APPROVED. THE CONSTRUCTION

BE MIGRATED FROM TOWERS "1" & "2" TO NEW TOWERS "A" & "B" OR

THE CONSTRUCTION OF NEW TOWER, ALL ANTENNAS AND FREQUENCIES SHALL

TOWERS "1" & "2" WITH NEW 30’ SELF-STANDING TOWER "C". BEFORE

PHASE C2 CONSTRUCTION IS THE REPLACEMENT OF THE EXISTING GUYED-WIRE

PAD & ENCLOSURE

EXISTING TRANSFORMER

"C" FENCE

EXISTING CLASS

A C

C E

S S

R O

A D

RCAG BUILDING

CL

CL

xx x x x x

WELL (EXISTING)

GROUND ROD AND ACCESS

(FIELD VERFY)

EXISTING POWER CABLE

N

M A

G N

E T

IC

T R

U E

15°3 9’ E

(FIELD VERFY)

TELEPHONE LINE

EXISTING

(FIELD VERFY)

TERMINAL POLE

EXISTING

TERMINAL UNIT

EXISTING

PROPANE TANK

EXISTING

(TOWER A)

NEW 30’ TOWER

(TOWER B)

NEW 30’ TOWER

(NEW)

OBSTRUTION LIGHT

POWER LINE FOR

TRENCH

CABLE

TRENCH

CABLE

PREFAB. MANHOLE

44"x32"x42"

PREFAB MANHOLE

48"x48"x48"

PREFAB. MANHOLE

44"x32"x42"

PREFAB. MANHOLE

44"x32"x42"

(TOWER C)

NEW 30’ TOWER

TRENCH

CABLE

NEW EES

OBSTRUTION LIGHT

POWER LINE FOR

J-BOX

11’

M

IN

40’-0" 40’-0" 22’-6"22’-6"

M

IN

T Y

P

(SEE C005)

CONDUIT

ASBESTOS

ABANDONED

MANHOLE

PREFAB

48"x48"x48"

CONDUIT

ASBESTOS

ABANDONED

CONDUIT

ASBESTOS

ABANDONED

PLATE

SACRIFICIAL

(SEE C004)

J-BOX

(SEE C005)

J-BOX

E D

M

IS

S

U E

D

F O

R

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

DO

NOT

SI

GN

MT

AZ

HM

SOURADETH SAYSANA

UIS TOWER REPLACEMENT

ATO - TECHNICAL OPERATIONS WESTERN SERVICE AREA

ABBASS ZAKERI

MGR: ENGINEERING - SEATTLEPROJECT ENGINEER

01/08/2021

INFRASTRUCTURE

ENGINEERING SERVICES

HM

THIS DRAWING PRODUCED ON THE WSA REGION MICROSTATION SYSTEM

RCAG

MILES CITY

MILES CITY

707519

MLS-707519-C003

M L

S

C

010’ 10’ 20’

SCALE: 1" = 10’

EXISTING FEATURES NEED TO BE FIELD VERIFIED.NOTE:

SCALE: 1" = 10’-0"

SITE PLAN (MODIFIED PER CONSTRUCTION PHASE C2)

SITE PLAN (PER PHASE C2 CONSTRUCTION)

F C

H

C

H

C005

F

C005

E

C006 B

C006

F

IN

A L

FINAL

Appendix B: MLS Proposed Site Plan