3a NWWP99572300136 Tuscaloosa AL NWR Relocation 2023 SOW RFQ.pdf

NATIONAL WEATHER SERVICE SOUTHERN REGION

NOAA ALL HAZARD WEATHER RADIO

Tuscaloosa, AL (TSCA1)

STATEMENT OF WORK

Purchase Request #NW-WP9957-23-00136

Install New Coaxial Cable, Power Divider and 4 Bay Antenna near Holt, AL

2/14/2023

Project Location:

3640 Hammer Rd Tuscaloosa, AL 35404

Near Holt, AL

LAT: 33.214167 LON: -87.489987

Antenna Location:

A new 4 Bay Scala Antenna will be mounted and centered at 350’ AGL on 496’ Triangular Grounded FM Tower. The new antenna will be mounted on the west leg of the tower and oriented to 270° (W), New Coax Identification:

Approximate 380’ EUPEN 7/8-inch EC5-50 Coaxial Cable or equivalent (NWS Provided) Jumper Cable, EUPEN 7/8-inch Coaxial Cable or equivalent 1/2-inch super flex jumper cable as follows:

(1) Approximately 10 feet – as needed (connection to transmitter from the Polyphaser (NWS Provided)

Tower Information:

496’ Grounded FM Tower 3-sided Round Leg Triangular Tower

Local Point of Contact for site access:

TO BE PROVIDED AT TIME OF AWARD

Regional Maintenance Specialist

NWS Slidell 62300 Airport Road

Slidell LA 70460-5243 Office: TO BE PROVIDED AT TIME OF AWARD

Mobile: TO BE PROVIDED AT TIME OF AWARD

OVERVIEW and Work Assignments:

Overview: The contractor shall install a new 4-bay Scala antenna and coaxial cable. This installation is required to be completed first. Once installation is complete and NWS sweeps the transmission system work can continue to remove the old antenna at the University of Alabama Tower about 3.43 miles to West.

Work will proceed as follows: The Contractor shall furnish all the necessary personnel, tower rigging and rigging equipment to install a new 17’ 4-bay Scala antenna (NWS provided) at 350’ center point on the tower, West leg and oriented to the West (270°). NWS will assemble the new antenna mast, but the contractor will tighten and weatherproof connections. The new antenna mast will be mounted to the tower using (2) 36” standoffs and hardware (NWS provided). A sway bar (NWS provided) will be installed by the contractor.

The contractor shall install a new Polyphaser surge suppressor (NWS provided) near the equipment shelter bulkhead. The contractor shall install new 7/8-inch EUPEN coaxial cable (NWS provided) from the transmitter shelter (Polyphaser) to the new antenna location on the tower.

The contractor shall install new hardware (angle adapters, round member adapters, clamps, snap hooks, etc.)

(NWS provided) to securely mount the cable to the tower every 3-4’ or as possible, on all vertical installations on the tower to meet Motorola R-56 and OEM requirements for sustainability in high winds.

The 7/8-inch coaxial cable shall be terminated on the antenna end using a DIN (male) connector and terminated on the shelter end (polyphaser) using a DIN (female) connector (connectors shall be NWS provided). Coaxial cable shall be connected to antenna (power divider) and all connections weatherized with butyl mastic tape.

Hoisting grips (NWS provided) shall be installed every 200 feet of vertical ascension. A hoist grip shall be installed at the apex of the vertical run, securing the coax to a tower member by Motorola R-56 standards.

Ground kits (NWS provided) shall be installed every 200 feet of vertical ascension. Additional ground kits will be installed at the apex of the vertical run, the base of the tower, and the bulkhead entry to the transmitter facility. All ground connections shall be electrically continuous to the EES. Ground kits shall not be grounded to painted surfaces.

Contractor shall provide pictures of installation. NWS will sweep the antenna/cable upon completion.

Contractor will remove all trash from site.

Contractor shall follow government provided labor rates.

Contractors can visit the project site in order to give an accurate bid. Pictures are also available upon request.

Project Warranty

Contractor shall guarantee their workmanship for a period of 1 year and provide a written warranty.

1. INSTALLATION GUIDELINES

A) All antennas, transmission lines, equipment, mounting devices, and cables to be installed at the site must be approved by the government or its structural consultant. The government will not permit any installations that exceed the structural capacity of the tower.

B) A pre-construction meeting must be held at the site prior to the commencing of work. This may be accomplished by telephone if the government deems. If the NWR site is in an operational status, notification to the lead forecaster at the Weather Service Forecast Office (WFO) must be accomplished prior to the transmitter being shut down.

C) All transmission and control cables are to be securely fastened to the tower. Transmission lines are to be installed according to the manufacturer’s guidelines and supported with the use of cable “butterfly” clamps designed for that particular model cable. Wrap-lock straps may be used only on short runs of small flexible cable (“jumpers”) and not used on the majority of the coaxial cable. The securing of lines using nylon ties or electrical tape is strictly prohibited.

D) All metallic materials installed on the tower including brackets, bolts, nuts, and washers must be either stainless steel or hot-dipped galvanized.

E) No drilling, punching, or welding to any part of the tower will be permitted. No removal or alteration of the tower structure is allowed.

F) All work performed on the tower will be performed by a government or lessor approved contractor. A copy of the contractor’s proof of insurance must be on file with government and/or lessor before work at the site will be allowed. The contractor shall perform all work while in compliance with Federal, State and Local regulations.

G) If during the course of installation, government personnel deem the installation inadequate, the user or his contractor will make changes in the installation to meet government’s requirements. The Regional NWR Focal Point or their designated individual has the final say over any disputes.

H) The contractor agrees to cooperate with the government and lessor to insure a safe working environment at the site. This includes any RF radiation exposure guidelines that are applicable.

I) Hours of operation to perform work will be between 7:00am & 5:00pm Central time Monday thru Friday unless otherwise approved by the COR. Contractor agrees to observe all Federal Holidays, and any other day off work designated by Federal Statute, Executive Order, or Presidential Proclamation:

New Year’s Day, Martin Luther King Day, Washington Birthday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Columbus Day, Veteran's Day, Thanksgiving and Christmas.

J) Facility access will be granted each day that is necessary for work to be completed. A Project sign in sheet shall be completed each day for all contractors, contractor employees and sub-contractors on site.

K) Period of Performance - Provide a fully installed and functional/operational system 120 days from contract award date.

L) Alabama Public Television contract is referenced for purposes of providing the Tuscaloosa NWR transmitter site legal specifics.

NATIONAL WEATHER SERVICE SOUTHERN REGION

NOAA ALL HAZARD WEATHER RADIO

Tuscaloosa, AL (TSCA1)

STATEMENT OF WORK

Purchase Request #NW-WP9957-23-00136

Remove Coaxial Cable, Power Divider and 8 Bay Antenna Tuscaloosa, AL

2/14/2023

Project Location:

901 University Blvd Tuscaloosa, AL 35401

LAT: 33.209288 LON: -87.548918

Antenna Location:

Centered approximately 188’ above base of Grounded, Guyed Rectangular Tower.

Antenna type – 8 Bay Dipole Array (approx. 44’)

Coax Identification:

Approximate 240’ of 7/8-inch Coaxial Cable

Tower Information:

Blaw Knox guyed H tower approximately 213’ in height, with 4 angle iron legs Tower dimensions: 21’3” x 3’1” Angle dimensions at antenna mount location: 3 ½” x 6”

Local Point of Contact for site access:

TO BE PROVIDED AT TIME OF AWARD

Regional Maintenance Specialist NWS Slidell

62300 Airport Road Slidell LA 70460-5243 Office: TO BE PROVIDED AT TIME OF AWARD

Mobile: TO BE PROVIDED AT TIME OF AWARD

OVERVIEW and Work Assignments:

The 8-bay Antenna, power divider and Coax cable requires removal from this tower and associated building.

Contractor will dispose of materials not reclaimed by NWS. Once the installation of the new antenna at the Holt Tower is completed and NWS sweeps the transmission system, the work detailed here can begin to remove the antenna at the University of Alabama Tower location about 3.43 miles to the West.

Work will proceed as follows:

Contractor shall furnish all the necessary personnel, tower rigging and rigging equipment to remove the old antenna/coax/divider from the tower and building.

Contractor will dispose of removed materials not reclaimed by NWS.

Contractor will remove all trash from site.

Contractor shall follow government provided labor rates.

Contractors can visit the project site in order to give an accurate bid.

Pictures of the site is also available upon request.

Project Warranty

Contractor shall guarantee their workmanship for a period of 1 year and provide a written warranty.

1. GUIDELINES

A) A pre-construction meeting must be held at the site prior to the commencing of work. This may be accomplished by telephone if the government deems. If the NWR site is in an operational status, notification to the lead forecaster at the Weather Service Forecast Office (WFO) must be accomplished prior to the transmitter being shut down.

B) No drilling, punching, or welding to any part of the tower will be permitted. No removal or alteration of the tower structure is allowed.

C) All work performed on the tower will be performed by a government or lessor approved contractor. A copy of the contractor’s proof of insurance must be on file with government and/or lessor before work at the site will be allowed. The contractor shall perform all work while in compliance with Federal, State and Local regulations.

D) If during the course of installation, government personnel deem the installation inadequate, the user or his contractor will make changes in the installation to meet government’s requirements. The Regional NWR Focal Point or their designated individual has the final say over any disputes.

E) The contractor agrees to cooperate with the government and lessor to insure a safe working environment at the site. This includes any RF radiation exposure guidelines that are applicable.

F) Hours of operation to perform work will be between 7:00am & 5:00pm Central time Monday thru Friday unless otherwise approved by the COR. Contractor agrees to observe all Federal Holidays, and any other day off work designated by Federal Statute, Executive Order, or Presidential Proclamation:

New Year’s Day, Martin Luther King Day, Washington Birthday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Columbus Day, Veteran's Day, Thanksgiving and Christmas.

G) Facility access will be granted each day that is necessary for work to be completed. A Project sign in sheet shall be completed each day for all contractors, contractor employees and sub-contractors on site.

H) Period of Performance - Provide a fully installed and functional/operational system 120 days from contract award date.

I) Alabama Public Television contract is referenced for purposes of providing the Tuscaloosa NWR transmitter site legal specifics.