Attachment 1 - Mingus Lookout Safety Deficiencies - SOW.pdf

PRESCOTT NATIONAL FOREST

0309 Q3 Con Eng Mingus Lookout Safety Deficiencies - SOW

Table of Contents

SECTION 1 – SCHEDULE OF ITEMS

SECTION 2 – GENERAL

2.01 INTRODUCTION

2.02 LOCATION

2.03 GENERAL SITE CONDITIONS AND WEATHER

2.04 USE OF PREMISES

2.05 PRESERVATION OF NATURAL FEATURES

2.06 CONSTRUCTION FACILITIES AND TEMPORARY CONTROLS

2.07 PROJECT REQUIREMENTS

2.09 CONSTRUCTION SCHEDULE

2.10 QUALITY REQUIREMENTS

2.11 SUBMITTALS

2.12 WORK SCHEDULE

2.14 SPECIAL CONDITIONS

2.15 MEASUREMENTS AND PAYMENTS

2.16 POINT OF CONTACT

SECTION 3 - PROJECT ADMINISTRATION AND COORDINATION

3.01 ADMINISTRATION

SECTION 4 – TYPE OF AWARD AND BASIS FOR AWARD

4.01 AWARD TYPE

4.02 BASIS FOR AWARD

APPENDIX A – FAA TOWER INSPECTION REPORT

APPENDIX B – JUNE 2008 MTOC TECH TIPS - 0873-2333-MTCD

APPENDIX C C – DRAWINGS

SECTION 1 – SCHEDULE OF ITEMS

Item No. Item Description Est. Qty Method of

Measurement Unit Cost/Unit Cost- Total

Phase 1 Bid Items:

1 Mobilization 1 LSQ LS

2 Mingus Mountain Lookout Tower Lightning Protection 1 LSQ LS

Total Phase 1 Bid Phase 2 Bid Items:

3 Mingus Mountain Lookout Tower Painting 1 LSQ LS

4 Mingus Mountain Lookout Tower Raise Handrails to 42" 1 LSQ LS

5 Mingus Mountain Lookout Tower Guy Wire Maintenance 1 LSQ LS

6 Mingus Mountain Lookout Tower Block C Concrete Repair 1 LSQ LS

Total Phase 2 Bid

Subtotal without mobilization:

* LS = Lump Sum, LSQ = Lump Sum Quantity Total Bid:

SECTION 2 – GENERAL

2.01 INTRODUCTION

This project consists of providing all materials, equipment, labor, transportation, and incidentals for installing lightning protection, to paint the exterior, to raise the height of the handrails, to perform maintenance of the guy wire, and to make concrete repairs to Block C of the Mingus Mountain Lookout Tower.

2.02 LOCATION

A. Mingus Mountain Lookout Tower: 34.694127° N 112.127653° W

From the intersection of Robert’s Road and Highway 89A, travel North on Highway 89A for approximately 12.25 miles to the junction of Forest Service Road 104. Turn east on Forest Service Road 104 for approximately 2.5 miles to the junction of Forest Service Road 104B. Turn south on Forest Service Road 104 B and the destination will be on the right approximately 0.5 miles.

2.03 GENERAL SITE CONDITIONS AND WEATHER

A. The construction site experiences moderate temperatures between May-September with monsoonal rains starting in July and typically running through August. Winters are generally cold with expected snowfall that sometimes run into late spring.

B. This site is located within the County of Yavapai and are accessed via paved and native surface roads.

C. Sanitary service is available at this site; however, there is no water available at this site.

D. Cell phone capabilities are available at this location; however, reception can be unreliable.

E. All temporary services used by the Contractor in this area shall be completely removed and the area shall be restored upon completion of use.

F. Contractor shall be responsible for cleanup and disposal associated with the work.

Contractor shall provide sufficient containers for waste and debris. Waste accumulation in approved contractor containers is allowed at the site, the Contractor shall NOT use the Government’s dumpsters that are located onsite for any disposal of waste. Disposal of waste shall be off National Forest Land and in compliance with local, state, and federal laws regarding disposal of construction waste. Before final acceptance of the project by the Government, the Contractor shall remove from Government land all waste materials and rubbish resulting from this work.

2.04 USE OF PREMISES

A. Contractor may have limited use of buildings. Contractor's use of premises is limited only by the Government's right to perform work or to retain other contractors on portions of project and as follows:

1. Perform construction during normal working hours from 7:00 a.m. to 4:30 p.m.

Monday through Thursday. Work schedules can be deviated from upon written request to the COR no less than 5 business days from the scheduled change request.

2. Keep driveways and entrances serving premises clear and available to emergency vehicles and pedestrians. Do not use these areas for parking or storage of materials, unless approved by the COR.

B. Smoking is not permitted within the building, or within 25 feet of any entrance, or outside an enclosed vehicle during Stage 1 or 2 fire restrictions.

C. Confine storage of materials to areas as approved by the COR.

D. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

2.05 PRESERVATION OF NATURAL FEATURES

A. Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants at no additional cost to the Government.

B. Provide temporary barriers to protect existing trees and plants, and root zones.

C. Do not remove, injure or destroy trees or other plants without prior approval. Consult with COR and remove agreed-on roots and branches that interfere with construction.

D. Do not fasten ropes, cables or guys to existing trees.

2.06 CONSTRUCTION FACILITIES AND TEMPORARY CONTROLS

A. Contracting Officer’s Representative (COR) - The COR is a Forest Service official designated by the Contracting Officer to perform day-to-day contract administration, including site inspections for quality assurance.

B. A site can be made available to the Contractor for staging and storage during the duration of the project and will be located by the COR at the beginning of work. Any damage resulting from the Contractor’s use of this site will be repaired or replaced at the Contractor’s expense at the direction of the COR.

C. Transportation to and from the work site for the Contractor's personnel and materials shall be provided by the Contractor at the Contractor's expense.

D. The Contractor shall take reasonable measure to secure equipment and contract work against theft and vandalism. The Forest Service is not responsible for the theft and/or vandalism of any materials or equipment left at the project site.

E. The work zones shall be delineated and marked adequately to warn visitors, other government contractors and all government employees of equipment operations and other hazardous conditions. The Contractor is responsible for providing barrier materials and maintaining barriers such as temporary barricades, barrier tape, curbs, etc. at all work zones. The Contractor shall remove all temporary facilities and restore the site to its prior condition as a part of the project closeout procedures. Any damage to existing improvements shall be repaired at the Contractor’s expense according to the direction of the COR.

F. Temporary solid waste disposal shall be provided by the Contractor for any waste generated due to contract work or Contractor’s occupancy at the site.

G. Fuel and oil storage – No bulk petroleum products shall be stored at the project site.

H. Controls – Emphasis shall be placed on the safety of the public and Contractor personnel and on protecting the Contractor’s workers and government employees.

I. Work limits – Ground disturbance and equipment shall be confined to the minimal area in each area of work. The contractor is responsible for establishing the work limits and marking or otherwise communicating the limits to Contractor personnel.

J. Fire protection – Refer to contract Fire Plan requirements that determine Contractor’s responsibility for measures and equipment to prevent fires, work restrictions during fire danger and assistance to be rendered in case of fire.

K. Equipment washout – Equipment shall not be washed out onsite.

L. Clean up – the Contractor shall remove all temporary facilities and restore site to the prior conditions as a part of the project closeout. Any damage to existing improvements shall be repaired at the Contractor’s expense. Any disturbance to soil and vegetation outside of work limits caused by the Contractor shall be restored or mitigated according to the direction of the COR.

M. No Government furnished supplies will be provided.

2.07 PROJECT REQUIREMENTS

A. Mobilization - This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to and from the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

1. Payment will be made as follows:

a. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

b. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

c. Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

d. The total of all payments shall not exceed the original contract amount for this item.

B. This project may consist of one (1) to two (2) phases. It is the intention of the

Government to award all Phases at the same time; however, if the entire bid exceeds available funding, then the Government, at its discretion, may award only phase one or may award both phases or certain bid items in a phase, possibly awarding the remaining phases or remaining bid items at a later time within the period of performance at the agreed upon price, if additional funds become available.

1. Phase one –

a. Mingus Mountain Lookout Tower Lightning Protection-

i. The Contractor shall furnish and install five new 5-foot-long lightning terminals, one at each corner of the roof and one lightning terminal at the apex of the roof. Install the lightning terminals on the cab fascia using treated wood spacer blocks so that the terminal clears the roof overhang.

ii. The Contractor shall furnish and install four new conductor lightning protection down leads from the eaves of the Cab roof down to the earth ground at the foundation at each of the corners. The new down lead lightning conductors shall be bonded to the existing down lead conductors at every 6 to 10 feet and at the existing ground rings.

iii. The Contractor shall furnish and install new Bonding Conductor #1 connections to the existing guy cables from the new down lead conductors (Ground Conductor #1).

iv. The Contractor shall furnish a total of eight (8) grounding rods for the guy wires. Two ground rods should be attached to each guy wire by at least a #6 AWG Cu, buried, and installed about 10 feet apart. The Contractor shall bond the ground rods to the guy wire on the tower side of the guy rod thimble and connector. Use Ground Conductor #1 for this installation. These ground rods will require drilling in most cases.

v. The Contractor shall furnish and install at the lookout new ground rings using

Bonding Conductor #1 at the Cab eave, around the Cab base, and at the tower foundation.

vi. The Contractor shall furnish and install a 5/8” by 8’ copper clad steel ground rod at each base corner of the Fire Lookout structure. Bond the ground rod to the new lightning conductor down lead using Bonding Conductor #1. This may require drilling a ground rod hole. This location is vehicle accessible that allows using power equipment to install the ground rods. For drilled ground rod holes, backfill hole with bentonite mixed with water to a “pancake like” consistency to provide a better conductive path to the surrounding rock.

If a ground rod installation is not possible at the foundation corner but can be installed radially away from the foundation corner, then install the ground rod as close as possible to the corner. Connect the ground rod to the new foundation ground ring using Ground Conductor #1.

vii. The Contractor shall furnish and install a new counterpoise, no less than one foot from the existing counterpoise lightning conductors, radiating out from each of the Fire Lookout corners. The new counterpoise conductor shall be Ground Conductor #1. It should be buried 18 inches or at the top of the bedrock. The counterpoise conductors do not necessarily need to be symmetric with the Fire Lookout.

viii. Metal items in the cab, as listed in the USFS Lightning Protection Handbook plus the communications cabinets, antenna(s), etc. shall be bonded to the new lightning conductor system. Bonding Conductor #1 shall be as short as possible and bonded to the cab new base conductor ground ring.

ix. The Contractor shall furnish and install Bonding Conductor #1 between the woven wire system safety barrier on the cab and stairs to the new conductor lightning protection down leads.

x. The Contractor shall inspect all existing lightning connection conductors for broken conductors and loose connectors. Broken cables and loose connections shall be repaired by the Contractor.

2. Phase two – Other Maintenance on Mingus Lookout Tower

a. Mingus Mountain Lookout Tower Painting – Metal roof and metal siding

i. Shall be free of dirt, dust, scale, or any other substance which may interfere with the adhesion of the specified coating.

ii. One coat enamel undercoat or primer and two coats Frazee Aro-Plate flat enamel or approved equal.

iii. Surfaces shall be painted only when they are free from moisture. No painting on exterior surfaces shall be done with less than 72 hours of actual drying weather after a rain, nor during periods of dew or fog.

iv. Temperature shall be above 45° F.

v. Apply all materials in accordance with the manufacturer’s recommendations.

vi. Color shall be approved by the COR prior to ordering.

vii. Finished surfaces shall be free from runs, drops, ridges, waves, laps, brush marks and other blemishes.

viii. Additional coatings shall be applied until paint film is of uniform finish.

ix. All materials that constitute a fire hazard shall be placed in closed metal containers at the end of every workday.

b. Mingus Mountain Lookout Tower Handrail Raising – The existing handrails are at 34” and need to be raised to 8” to conform to the 42” OSHA requirements.

i. The Contractor shall submit shop drawings to the COR for approval showing the complete railing detail.

ii. The new railing shall be attached to the existing rails, similar to the photos below.

iii. Railings shall be fabricated from welded or seamless members 2” diameter.

Steel members shall conform to the requirements of ASTM A-53. Grade B structural steel conforming to ASTM A-36, or tubular sections of hot rolled mild steel as shown.

iv. Welding shall be electric arc and shall be in conformance with Specifications for Welded Highway and Railway Bridges of the AWS.

c. Mingus Mountain Lookout Tower Guy Wire Maintenance –

i. The guy wire turnbuckle on leg B has less than 8 threads showing on the outside. Reinstall the turnbuckle and adjust the guy wire length to allow for proper adjustments.

ii. Guy wire saddle clamps at the bottom and top have been improperly installed on legs A, B, C, and D. Reinstall all improperly installed saddle clamps in accordance with TIA-222-H.

iii. Guy anchor for leg A has been damaged. If possible, repair the damaged anchor, and replace the anchor if it is damaged beyond repair.

d. Mingus Mountain Lookout Tower Block C Concrete Repair –

i. Preshrink patching grout by mixing approximately 30 minutes prior to filling crack and chipped areas.

The Contractor is responsible for verifying all measurements and electrical requirements prior to ordering equipment.

2.09 CONSTRUCTION SCHEDULE

A. Work shall begin no more than 10 days after the notice to proceed is issued by the Contracting Officer.

B. The Contractor shall submit a written construction schedule to the COR upon receipt of the notice to proceed.

C. The Contractor shall submit revised construction schedule to the COR monthly after the work has begun.

D. The Contractor shall give the COR 24 working hours’ notice prior to beginning work.

E. Work shall be completed within 90 days of the project start date.

2.10 QUALITY REQUIREMENTS

A. All work shall be performed in a professional like manner, to the quality and standard of the industry.

1. Contractor shall be an experienced firm that has expertise in work similar in materials and extent that is indicated in this project.

2. Contractor shall comply with hauling and disposal regulations of authorities having jurisdiction.

3. Contractor shall comply with ANSI A 10.6, NFPA 241 and OSHA guidelines.

4. Contractor shall conduct pre-work conference onsite.

B. The Contractor is required to pay wages according to Davis Bacon Act labor Rates.

C. Bonding is required when contract prices exceed, $25,000.

D. Work Will be inspected by a Forest Service Representative.

2.11 SUBMITTALS

A. Contracting Officer/COR approval is required for all submittals.

B. Items to be submitted for approval.

1. Construction schedule

2. Air Terminals

3. Vertical Bases

4. Parapet Base Extensions

5. Main Conductors

6. Bonding Conductors

7. Lightning Conductors Cable Connectors

8. Bonding Lugs

9. Bonding Plates

10. Surge Arresters

11. Paint and Paint Color

12. Handrail design

13. Final testing of the grounding system

C. Deliver one copy of submittal to Government in electronic format, unless a paper copy is requested by the Contracting Officer.

D. When the approving authority is the Contracting Officer, the Government will:

1. Note date on which submittal was received from the QC Manager.

2. Review Submittals for approval within scheduling period specified and only for conformance with project design concepts and compliance with contract documents.

3. Identify returned submittals with markings appropriate for action indicated.

E. Submittals will be returned to the Contractor with the following notations:

1. Submittals marked “approved” or “accepted” authorize the Contractor to proceed with the work covered.

2. Submittals marked "approved as noted” or “approved, except as noted, resubmittal is not required,” authorizes the Contractor to proceed with the work covered provided he/she takes exception to the corrections.

3. Submittals marked “not approved” or “disapproved” or “revise and resubmit” indicate noncompliance with the contract requirements or design concept, or that submittal is incomplete. Resubmit with appropriate changes. No work shall proceed for this item until resubmittal is approved.

F. Make corrections required by the COR. If the Contractor considers any correction or notation on the returned submittals to constitute a change to the contract drawings or specifications, notice as required under the FAR clause entitled CHANGES, is to be given to the Contracting Officer. Contractor is responsible for the dimensions and design of connection details and construction of work. Failure to point out deviations may result in the Government requiring rejection and removal of such work at the Contractor's expense.

G. If changes are necessary to submittals, make such revisions and submission of the submittals in accordance with the procedures above. No item of work requiring a submittal change is to be accomplished until the changed submittals are approved.

2.12 WORK SCHEDULE

A. The contractor shall complete all work within 90 calendar days.

B. Contract time may be suspended if fire conditions prevent work or in the event of a laps in government funding.

2.14 SPECIAL CONDITIONS

A. The successful offeror is required to be registered in the System for Acquisition

Management (SAM) prior to award of this contract. To check current registration or to complete registration, go to www.sam.gov.

2.15 MEASUREMENTS AND PAYMENTS

A. Measurement and payment for contract work will be made only for and under PAY

ITEMS included in the SCHEDULE OF ITEMS.

2.16 POINT OF CONTACT

Theresa “Terri” Beard Civil Engineer Prescott National Forest 344 S. Cortez Street Prescott, AZ 86303

(928) 458-1503 Theresa.beard@usda.gov

COR will be designated by the Contracting Officer at the time of contract award.

SECTION 3 - PROJECT ADMINISTRATION AND COORDINATION

3.01 ADMINISTRATION

A. Pre-Bid Meeting - A pre-bid meeting will be held no less than two weeks prior to the bid proposal due date.

B. Kick-off Meeting. Upon receipt of a written Notice to Proceed from the Contracting Officer, Contractor shall conduct a kick-off meeting with the Forest Service to review the scope of the project, develop a project schedule, and confirm deliverables.

SECTION 4 – TYPE OF AWARD AND BASIS FOR AWARD

4.01 AWARD TYPE

As a result of this solicitation, the Government anticipates awarding a Firm Fixed-Price Construction Contract using RFP Best Value -Tradeoffs format.

4.02 BASIS FOR AWARD

Technical Capability shall be submitted in the form of a statement or document that demonstrates the contractor’s capability to perform the work to meet or exceed the requirements of this solicitation. To meet the Technical Capability Requirements, offers shall address the following factors:

Factor a – The Contractor shall have a minimum of three (3) years’ experience installing lightning protection systems. Provide written documentation that specifically addresses http://www.sam.gov/ mailto:Theresa.beard@usda.gov your firm’s expertise in this work, materials and to the extent that is indicated below.

Contractor is encouraged in its proposals to identify any additional work that is not specified in this Scope of Work that would be, in its opinion, necessary to complete the project as defined herein. Contractor may propose additional services that in its opinion will improve the efficiency and quality of the project. If identified, the additional work or services must be included in the proposal but separated out in the Contractors Fee Schedule.

1. Installing Lightning Protection

2. Painting

3. Raising Handrails

4. Maintenance of Guy Wires

5. Concrete Repair

6. Performing Work at Significant Heights

Factor b Provide examples of past performance including a minimum of 3 projects that show experience performing the work detailed in Factor a, above. Submit with references (name of contact, contact’s phone number and email address, project name, work that was completed, and project amount) that can be contacted to verify past work successfully completed.

Factor c – Prices – Contracting Officer intends to award without discussions, provide your best price in your offer.

Failure to provide adequate information for Technically Capability may result in the offer being removed from the competitive range.

APPENDIX A – FAA TOWER INSPECTION REPORT

STRUCTURE SUPPORT

BRANCH

FAA MMAC AJW-L523

TOWER INSPECTION

REPORT

Site ID: 030905L8812034A v.13.9 1

Top Page: Site Information Region/Forest 03/09 Forest Name Prescott National Forest Facility Type Remote Facility Use Multi Use Site Name Mingus Lookout Life Safety Priority 1 Mission Capability Minor Environmental Minor Overall Tower Condition Major Site Coordinates Lat/Long 34°41'39.10"N, 112°7'39.75"W Inspection Team Tanner Burnett, Christopher Hunkele, Mateen Overby Inspection Report Reviewed By Matthew Burnett Date of Inspection 4/18/2023 Date of Last Known Inspection 4/18/2023 Obstruction Lighting No RF readings (safe/unsafe) Safe Tower Manufacture Pacific Coast Steel Tower Model Unknown Serial Number Unknown Associated Drawing Numbers Unknown Tower Height 59’ 8” Number of Sections 3 Elevation of Tower Slope Change Unknown Tower Status/Current Use Status Active Current Use Fire Watch Tower Type/System Type Guyed System Lookout Tower Leg and Brace Dimensions Leg 4”x4” Brace 2”x2” Tower Cross Section/Face Width Cross Section Square Face Width 191” Base/Section Bolt Size/Grade Base 1” Section 5/8” Foundation Dimensions/Type Dimensions 16”x16” Type Individual Pier Climbing Ladder/ Stairs Dimensions

Ladder Width 30” Rung to Rung 9” Rung Type Step/Wood Rung Size 11”

Weather Conditions

Temperature 53.6 °F Humidity 31.9% Wind Speed 3.7 mph Skies Clear

Access Road Owner FS Road Surface 2 - HIGH CLEARANCE

VEHICLES

Accessibility 4 X 4 Required Road Length 0.75 Miles Access Road Starting Lat/Long 34°41'48.27"N, 112°7'25.52"W Narrowest Width Unknown Access Road Notes Forest Service Key Required. Custom Master for Shelter and Lookout.

Site Assessment Deficiency Report

• Green: No issues or minor issues noted due to non-compliance with a current standard.

• Yellow: Non-critical issues identified that should be corrected, when possible, but is not an immediate concern.

• Red: Critical issues identified that may affect personnel safety, cause a system outage, or damage to equipment. These issues require immediate attention or should be condemned. A Do Not Climb sign is installed if the structural integrity of the tower is compromised.

Life-Safety Compliance

PRIORITY LEVEL: 1 DEFICIENCY DESCRIPTION WITH RECOMMENDED CORRECTIVE ACTION (RCA):

-No lightning protection system (including down conductors and air terminals) has been installed on the tower. RCA:

Install an LPS to include an air terminal, down conductors, and tie into an earth electrode system in accordance with NFPA 780 Section 4.

Reference: OSHA Deficiencies (OSHA Standards), Electrical Safety Deficiencies (NEC and NFPA 780) industry best practices), and Hazardous Conditions (issues of concern, life threatening).

Mission Capability

PRIORITY LEVEL: 3 DEFICIENCY DESCRIPTION WITH RECOMMENDED CORRECTIVE ACTION (RCA):

-Recommend collecting as-builds or mapping tower to support completion of a Structural Analysis. TIA-222 stipulates that guyed towers are analyzed once every three years and other structures analyzed once every five years.

Reference: Probability of system outage due to any reason, system life in current condition, theft/tampering preventive measure adequacy, Grounding & Bonding (NFPA 780), Lightning Protection System (NFPA 780), and Utilities & Power

(NEC).

Environmental

PRIORITY LEVEL: N/A DEFICIENCY DESCRIPTION WITH RECOMMENDED CORRECTIVE ACTION (RCA):

A tree has fallen into another tree, presenting a major risk to the guy wire system for leg C below. RCA: Remove the tree to prevent damage to the guy wire and tower.

Reference: Wildlife and pest control, weather conditions, flood control, and hazardous waste conditions.

Site Corrective Actions Overview Were corrective actions performed during the inspection? NO

CORRECTIVE ACTIONS COMPLETED ON SITE WITH DETAILS LISTED BELOW:

N/A

Reference: Life safety compliance, mission capability, and environmental.

Post Site Inspection Engineer Review Are there deficiencies requiring further review by an Engineer? N/A

ENGINEER NOTES AND RECOMMENDATIONS LISTED BELOW PER THE INFORMATION

PROVIDED IN THE SITE REPORT:

N/A

Reference: Life safety compliance, mission capability, and environmental.

Contents Site Information……………………………………………………………………………………………………..1 Site Assessment Deficiency Report………………………………………………………………………………2 Site Corrective Actions Overview…………………………………………………………………………………3 Post Site Inspection Engineer Review……………………………………………………………………………3 Contents …………………………………………………………………………………………………………….4 Asset Master File Link……………………………………………………………………………………………...4 NRM Condition Assessment Link…………………………………………………………………………………4 Overview……………………………………… Section 1: Test Data Collection……………………………………………………………………………………6 Section 2: Overall Tower Condition……………………………………………………………………………….7 Section 3: Foundation, Fencing, and Environmental Condition………………………………………………..8 Section 4: Corrosion, Wood Rot, and Coating Condition……………………………………………………….9 Section 5: Overall Lightning Protection, Bonding, and Grounding Condition……………………………….10 Section 6: Tower, Foundation, and Grounding Condition Pictures…………………………………………..11 Section 7: Shelter Information……………………………………………………………………………………12 Section 8: Lookout Cab Information……………………………………………………………………………..13 Section 9: Primary and Redundant Power Information………………………………………………………..14 Section 10: Additional Notes/Continuation Sheet………………………………………………………………Error!

Bookmark not defined.

Section 11: Inspection Guidance …………………………………………………………………………………16

11.1 Tower Reference……………………………………………………………………………………………..16

11.2 Inspection Overview and procedures………………………………………………………………………17

11.3 Timber Condition Guidance…………………………………………………………………………………18

11.4 Concrete Condition Guidance………………………………………………………………………………19

11.5 Steel Condition Guidance……………………………………………………………………………………20

Asset Master File Link: https://usfs.box.com/s/tvdayn44acr6quhxljqq0ksxyqm7cd1j

NRM Condition Assessment Link: https://usfs.box.com/s/tps5auf8pytutd7gv1qxgvu08ppc88wv

Overview This document provides inspection details for self-supporting and guyed towers. Two basic categories are covered in the tower inspection:

1. Structural Condition

2. Corrosion and Coating

All findings within these applicable categories are checked for standards compliance and used to generate recommendations. If non-compliant issues are found, they are ranked according to their criticality as follows:

Priority 1: Critical issues that may affect personnel safety, cause a system outage, or damage to equipment. These issues require immediate attention.

Priority 2: A non-critical issue that should be corrected, when possible, but is not an immediate concern.

Priority 3: A minor issue or an item that has been noted due to non-compliance with a current standard.

These items may be compliant with previous standards.

Locations of non-compliant items are listed in the data tables. A location reference map is provided in Figure 1 on the next page. A trained tower inspection team performs inspections. Each team member has the following certifications:

• Mobile Crane Operations

• Fundamentals Of Protective Coatings for Industrial Structures

• Fall Protection/High Angle Rope Rescue

• Grounding/Bonding/Shielding/Corrosion/Tower Inspections

• Guyed Tower Inspections

Common Abbreviations

• “RCA” - Recommended Corrective Actions

• “SF” - Severity Factor

• “CSF” - Corrosion Severity Factor

∗ WARNING∗

• Due to safety limitations only employees/climbers trained in Fall Protection/High Angle Rescue shall be allowed to inspect or work above ground level.

• It is imperative that communications between on-site personnel and inspection team members always remain open.

∗ NOTICE∗

• Safety guidelines including pre-climb equipment inspection and rescue/rappel planning will be followed at all times.

Rescue Plan Because of differences in tower systems a rescue plan including first man up contingencies for each individual inspection situation shall be discussed, agreed upon, and completely understood by each member of the inspection team at each site before any work above ground starts. (Refer to ‘Radome Rescue Planning and Procedures’)

Controlled Decent Plan Because of differences in tower systems a rappel plan for each individual inspection situation shall be discussed, agreed upon, and completely understood by each member of the inspection team at each site.

Keeping in mind that a minimum 5000-pound anchor point is mandatory for a safe rappel as outlined in Fall Protection training. (Refer to ‘Radome Rappel Planning and Procedures’)

Section 1: Inspection Data Collection Concrete PSI Test (Vertical/Horizontal)

Leg A Vertial & Horizontal 6,900 PSI Leg B Vertial & Horizontal 4,600 PSI Leg C Vertial & Horizontal 5,700 PSI Leg D Vertial & Horizontal 6,750 PSI Leg AA N/A N/A Leg BB N/A N/A Leg CC N/A N/A Leg DD N/A N/A

Metal Thickness Average (Inches) Coating Thickness Average (Mils)

Leg A 0.395“ Member A 0.133“ Leg A 8.70 mils Member A 4.66 mils Leg B 0.329“ Member B 0.145” Leg B 10.5 mils Member B 4.31 mils Leg C 0.327“ Member C 0.133“ Leg C 8.70 mils Member C 5.20 mils Leg D 0.326” Member D 0.144” Leg D 7.60 mils Member D 4.31 mils Leg AA N/A Member AA N/A Leg AA N/A Member AA N/A Leg BB N/A Member BB N/A Leg BB N/A Member BB N/A Leg CC N/A Member CC N/A Leg CC N/A Member CC N/A Leg DD N/A Member DD N/A Leg DD N/A Member DD N/A

3 Point Ground Resistance Reading Soil Resistivity Reading

4.67 Ω 3.54 Ω

Bonded Points Ohms Bonded Points Ohms

Structure Bond A 25.54 Ω Down Conductor A N/A Structure Bond B Open Loop Down Conductor B N/A Structure Bond C 5.977 Ω Down Conductor C N/A Structure Bond D 0.142 Ω Down Conductor D N/A

Bonded Points Ohms

Shelter Bonds Open Loop Bus Bar Bonds N/A Fence Post Bonds N/A Fence Corner Bonds N/A Wireway Bonds N/A Guy Wire Bonds A: 301.3 Ω, B: 234.1 Ω, C: 201.8 Ω, D: 326.0 Ω Other Bonds Meter Base 94.24 Ω

Guy Wire System

Inspection Strand Type Size Foot Pounds (lbfs.)

(Legs with multiple guys, measurements are entered bottom to top) Leg A 1-7 ½” 620 lbfs.

Leg B 1-7 ½” 920 lbfs.

Leg C 1-7 ½” 780 lbfs.

Leg D 1-7 ½” 420 lbfs.

PLUMB AND TWIST INFORMATION WILL BE IN ATTACHMENT N/A

Test Data Notes

-Plumb and twist data collection was unable to be performed due to the inaccessibility of all tower legs.

Section 2: Tower Structure, and Safety Conditions Tower member and hardware (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority N/A

Damaged/Bent Members (Legs & Braces) ☒

Loose Members ☒ Mounted Equipment

(Antennas, etc.) ☒

Welded Connections (Cracks, etc.) ☒

Weep Holes (Plugged/Not Plugged) ☐ N/A

Hardware (Loose, Missing, Damaged, Abandon)

Guy Wire System (Visual Inspection, Tensiometer Readings Section 1) Ref. Annex J TIA

222-H

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -The guy wire turnbuckle on leg B has less than 8 threads showing on the outside. RCA: Reinstall the turnbuckle and adjust the guy wire length to allow for proper adjustments.

-Guy wire saddle clamps at the bottom and top have been improperly installed on legs A, B, C, and D. RCA: Reinstall all improperly installed saddle clamps in accordance with TIA-222-H.

-Guy anchor for leg A has been damaged. RCA: If possible, repair the damaged anchor, and replace the anchor if it is damaged beyond repair.

Strand Condition ☒ Turnbuckles ☐ 3

Cable Connectors ☐ 3 Guy Tensions ☒

Guy Anchors ☐ 3

Ladder, Platforms, and Catwalks (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority -CSF-1 splits have developed on platform boards at third platform. RCA:

Continue to monitor and replace the platform boards if it progresses to CSF-2 and above.

-Handrails are 34 inches which is below the current OSHA requirement of 42 inches (+/-3 inches) on platforms and/or catwalks. RCA: Adjust the handrail height to 42 inches (+/-3 inches) per OSHA regulations 1926.502(B)(1)(2).

Ladder Climbing Safety System ☐ N/A

Bent, Damaged or Missing Members ☒

Catwalk Flooring (i.e., Grating/Wood Planks) ☐ 2

Hinged Access ☒ Fastening Hardware (Nuts, Bolts, Screws, Rivets, etc.)

Transmission Lines (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority N/A

Coax and/or Waveguide Condition ☒

Connector Weatherproofing ☒

Transmission Line Supports ☒

Lights and Sensors (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority N/A

Obstruction Light Bulbs and Lenses - Condition ☐ N/A

Obstruction Light Control Box ☐ N/A

Obstruction Light Photocell ☐ N/A

Wiring Condition ☐ N/A

Section 3: Foundation, Fencing, and Environmental Condition Ground Condition

(Visual Inspection) Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority N/A

Settlement, Movement, or earth cracks ☒

Erosion Around Foundations ☒

Other Ground Concerns (Standing Water, Drainage, etc.)

Concrete Condition (Visual Inspection, Digishmidt Concrete PSI Readings Section 1)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -CSF-1 chipping, and cracking on the grout of block C. RCA: Continue to monitor for noted chipping, cracking, and/or spalling to expand in any direction.

Grout Condition ☐ 3

Cracking, Spalling, Chipping ☒

Low Spots (Collecting Moisture) ☒

Fencing and Security Wire (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority N/A

Gated Access Points ☒ Fence Posts ☒

Fencing Material (Chain Link, Wood Pickets, etc.) ☒

Security Wire (Barbed and Razor Wire) ☒

Fastening Hardware (Bolts, Screws, etc.) ☒

Environmental Condition (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority A tree has fallen into another tree, presenting a major risk to the guy wire system for leg C below. RCA: Remove the tree to prevent damage to the guy wire and tower.

Vegetation Overgrowth (Trees, Brush, Vines etc.) ☐ 2

Waste, Biohazards ☒ Infestation (Wasps, Rodents etc.) ☒

Section 4: Corrosion, Wood Rot, and Coating Condition Main Tower and

Facilities Wooden and Steel (Visual Inspection, Elcometer Thickness and Coating Readings from Section 1) Ref TI-222-H

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority

-CSF- 1 corrosion has developed on the tower legs and braces in spots throughout. RCA: Perform corrosion abatement, recoat the surface, and continue to monitor.

-CSF- 1 dry rot has developed in spots throughout the platforms RCA:

Recoat the entire surface in a protective material such as paint, epoxy, stain, polyurethane, etc.

-CSF-2 & 3 corrosion has developed on the tower electrical system in spots throughout. RCA: Replace the corroded conduit.

-CSF- 1 corrosion has developed on the chain link fence throughout. RCA:

Perform corrosion abatement, recoat the surface, and continue to monitor.

Legs, Braces, and Other Structural Members ☐ 3

Climbing Facilities Stairways, Ladders and

Safety Systems, Grating/Wood Decking

☐ 3

Electrical Through Ways, Conduits, etc. ☐ 3

Equipment Mounts ☒ Fencing and Security

Wire ☐ 3

Lightning Protection System (Conductors, Bus Bars, Welds, Bonding Connectors)

Fasteners (Nuts, Bolts, Clamps) (Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations Yes Priority -CSF-1 corrosion has developed on structural and non-structural tower hardware in spots throughout. RCA: Perform corrosion abatement, recoat the surface, and continue to monitor.

-CSF-1 corrosion has developed on legs A, B, C, and D structure bonding hardware. RCA: Perform corrosion abatement, recoat the surface, and continue to monitor.

-CSF-1 & 2 corrosion has developed on grounding and bonding hardware in spots throughout. RCA: Perform corrosion abatement, recoat the surface, and continue to monitor.

-CSF-1 corrosion has developed on legs A, B, C, and D structure bonding hardware. RCA: Perform corrosion abatement, recoat the surface, and continue to monitor.

Legs, Braces, and Other Structural Members ☐ 3

Climbing Facilities Stairways, Ladders and

Safety Systems, Grating/Wood Decking

☐ 3

Electrical Through Ways, Conduits, etc. ☐ 3

Equipment Mounts ☒ Fencing and Security

Wire ☒

Lightning Protection System (Bonding, Mounting Hardware) ☐ 3

Section 5: Overall Lightning Protection, Bonding, and Grounding Condition Inspection Points

(Visual Inspection, 3-point Ground Test, Megger, and

Milli-Ohms Meter) Ref

NFPA 780

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -No lightning protection system (including down conductors and air terminals) has been installed on the tower. RCA: Install an LPS to include an air terminal, down conductors, and tie into an earth electrode system in accordance with NFPA 780 Section 4.

-No ground well has been installed for earth electrode system test readings. RCA: A ground test well should be installed in accordance with NFPA 780 Annex A.4.13.1.

-The structure bond leg B resistivity test is above 25 ohms. RCA: Improve the bond to the earth electrode system to meet the 25 ohms accepted per NFPA 780 para. A.11.4.5.2.

-The LP tank has not been bonded to the earth electrode system. RCA:

Bond the LP tank to the EES in accordance with NFPA 780 Section 4.

-The fence, gates, and security wire are not bonded to the earth electrode system and is not within a zone of protection. RCA: Bond the fence, gates, and security wire to an EES, or establish a zone of protection in accordance with NFPA 780 Section 4.

Lightning Protection System (Rolling Ball, Air Terminal, Halo, and Down Conductor)

☐ 1

EES (Test Well, Conductor Size, and

Ground Rods) ☐ 3

Structure Bonds (Tower and Shelter) ☐ 2

Equipment Bonding (Antennas/Masts, Conduit, J-Boxes, Generator, LP tank, and Solar Array)

☐ 3

Fence Bonding (Fence Posts, Gates and Gate

Posts, and Security Wire)

☐ 3

Guy Wires ☒

Section 6: Tower, Foundation, and Grounding Condition Pictures Tower Foundation

Risk To Guy Wire

3-Point Ground Resistivity Test

Corroded Bonding hardware

Corroded Tower Member(s)

4-Point Soil Resistivity Test

Section 7: Shelter Information Shelter Exterior Picture

Shelter Interior Picture

Shelter Exterior Picture

Shelter Interior Picture

STRUCTURE

NAME

Mingus Lookout Cabin STRUCTURE SUPPORTS Storage HVAC Make N/A

STRUCTURE

TYPE

Custom Wood HVAC Model N/A HVAC Serial N/A

MAKE N/A HVAC BTU N/A

MODEL N/A EXTERIOR L x W x H 282”x195x106” SERIAL N/A INTERIOR L x W x H N/A USED FLOOR SPACE (2’x2’ typical rack) N/A NUMBER OF RACKS N/A AVAILABLE FLOOR SPACE (based on a 2’x’2 square and not entering egress areas) N/A

Shelter

Points

(Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -Note: Shelter interior was inaccessible during the inspection.

Exterior (Roof, Walls, Foundation, Doors, Windows)

Interior (Ceiling, Walls, Floor) ☒

Electrical (Lighting, Outlets, Load centers) ☐ N/A

Fire Extinguishers ☐ N/A

Section 8: Lookout Cab Information:

Lookout Cab Exterior Picture

Lookout Cab Interior Picture

Lookout Cab Exterior Picture

Lookout Cab Interior Picture

STRUCTURE

NAME

Mingus Lookout STRUCTURE SUPPORTS Fire Watch HVAC Make N/A

STRUCTURE

TYPE:

Wood Lookout Cab HVAC Model N/A HVAC Serial N/A

MAKE N/A HVAC BTU N/A

MODEL N/A EXTERIOR L x W x H 84”x84”x96” SERIAL N/A INTERIOR L x W x H 78”x79”x85” USED FLOOR SPACE (2’x2’ typical rack) N/A NUMBER OF RACKS N/A AVAILABLE FLOOR SPACE (based on a 2’x’2 square and not entering egress areas) N/A

Lookout Cab

Points

(Visual Inspection)

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -The shelter exterior walls and roof has developed minor deterioration throughout (greater than 50% of surfaces). RCA: Resurface, and/or replace the wall panels, and roofing material.

Exterior (Roof, Walls, Foundation, Doors, Windows)

☐ 3

Interior (Ceiling, Walls, Floor) ☒

Electrical (Lighting, Outlets, Load centers) ☐ N/A

Fire Extinguishers ☐ N/A

Section 9: Primary and Redundant Power Information Primary Power Picture

Redundant Power Picture

Primary Power Picture

Redundant Power Picture

Primary Type Commercial Redundant Power Type Unknown Transformer # N/A Fuel Type N/A Pole or Protector # X488014 Transfer Switch Installed N/A Meter # CV0434 Fuel Tank Capacity N/A Power Phase Single Phase Generator Make N/A Site Disconnect Yes Generator Model N/A

Generator Serial N/A

Inspection

Points (Visual Inspection, megger, and milli-ohms meter) Ref:

NFPA 780 and NEC

Compliance Deficiencies, Recommended Correction, and Standards/Regulations

Yes Priority -The LP tank has not been bonded to the earth electrode system. RCA:

Bond the LP tank to the EES in accordance with NFPA 780 Section 4.

Meter Base ☒ Site Disconnect ☒

Grounding ☒ 3 Wiring/Conduit ☒

Battery/s ☐ N/A LP Tank Condition ☒ LP Lines Condition ☒

Solar Panels ☐ N/A

Section 10: Additional Notes/Continuation Sheet N/A

Section 11: Inspection Guidance

11.1 Tower Reference

Locations referred to in the trip report are interpreted as follows:

• Leg/Face “A” will be the first leg/face clockwise from true North, each additional leg/face continuing in the clockwise direction will increase alphabetically

• Sections will be numbered starting with one at first complete section closest to ground level and increase numerically to the top of the tower

• Section panels will be numbered starting with one at the lowest point in the section, associated section number, and corresponding face letter

• Guy wires and guy pull-offs will be numbered starting with one at the lowest point increasing numerically to the top of the tower and corresponding leg letter

• Guy anchors will be denoted starting closest to the tower as 1 (inside), 2 (middle), 3 (outside) and corresponding leg letter

Figure 1

11.2 Inspection Overview and procedures

The overall condition of the tower structural members, coax components, climbing facilities, fasteners, and other components are evaluated as outlined in this section. Visual and physical checks are performed to ensure that the tower and subsystems are structurally sound and functional.

Visual inspections are performed and recorded in section 1.2.1 that determine overall appearance, verify that all tower members and subsystem components are in place, and identify damaged, missing, or loose components.

Physical inspections are performed and recorded in section 1.2.2 that determines coating thickness, using an Elcometer 456 Coating Thickness Gauge. All corners of the tower are checked at the ground level and at any location that appears questionable with a three-point check that covers the leg and the braces on either side of it.

ASTM A-123A is referenced for coating thickness requirements.

Concrete foundations and anchoring hardware are visually checked for wear, damage, and proper construction as detailed in section 1.2.4. Concrete hardness tests are performed using a Proceq Digi-Schmidt Digital Concrete Test Hammer. Two hardness measurements are taken per foundation corner – one on the top of the foundation and one on the side.

The tower plumb results are provided in section 1.2.4. The plumb and twist inspection, in accordance with TIA- 222-H Annex J, determines the allowable deviation for tower structures. Allowable deviation depends in large part on the height and tower type. The transit is to be set up on each leg azimuth at the base of the tower. The corresponding tower leg at the base of the tower is used to set the vertical baseline, as shown for both three leg and four leg towers.

11.3 Timber Condition Guidance

Tower structural members, conduit, ladders, stairways, fasteners, and all other components made from Timber must be checked for deterioration and degradation in addition to standard member condition and in lieu of corrosion and proper protective coatings for steel members. The field guidance below is to be used to determine the appropriate compliance level with industry guidance from the American Wood Council, Federal Highway Administration Inspection Manual and American Institute of Timber Construction on material condition though the member may not physically denote large signs of distress, deterioration, and degradation.

The severity of deterioration for timber is reported in terms of degrees: 1st, 2nd or 3rd. These determinations are made visually and are based on the following criteria:

• 1st degree/SF-1 distress, deterioration and degradation is minor as described below Connections – Connection is in place and functioning as intended.

Decay – None Surface Irregularities – None Section Loss – None.

Check/Shake – Surface penetration less than 5% of the member thickness regardless of location.

Cracks – None.

Split/Delamination – None.

Abrasion/Wear – None or no measurable section loss.

Settlement – None.

Erosion/Scour – None Mechanical Damage – None Infestation – None Mold/Discoloration – None

• 2nd degree/SF-2 distress, deterioration and degradation is moderate as described below Connection – Loose fasteners or pack rust without distortion is present but the connection is in place and functioning as intended.

Decay – Localized cracking perpendicular to parallel to the grain giving the surface an appearance like charred wood Surface Irregularities – Localized areas of roughened surfaces, swollen or sunken faces

Section Loss – Material missing that affects less than 10% of the member section.

Check/Shake – Penetrates 5%-50% of the thickness of the member and not in a tension zone.

Cracks – Crack that has been arrested through effective measures.

Split/Delamination – Length less than the member depth Abrasion/Wear –Section loss less than 10% of the member depth.

Settlement – Exists within tolerable limits or arrested with no observed structural distress.

Erosion/Scour – Exists within tolerable limits or has been arrested with effective countermeasures.

Mechanical Damage – Distress caused by fasteners, joints or other locations exposing end grain or create pockets for moisture that has not weakened or warped member Infestation – Bores, pits or pockets created from insects noted on surface but has not weakened member Mold/Discoloration – Observed on surface but has not weakened member

• 3rd degree/SF-3 distress, deterioration and degradation is severe as described below

Connection – Missing bolts, rivets, or fasteners; broken welds; or pack rust with distortion Decay – Widespread cracking perpendicular to parallel to the grain giving the surface an appearance like charred wood Surface Irregularities – Widespread areas of roughened surfaces, swollen or sunken faces Section Loss – Material missing that affects 10% or more of the member Check/Shake – Penetrates more than 50% of the thickness of the member or more than 5% of the member thickness in a tension zone Cracks – Identified crack that is not arrested Split/Delamination – Length equal to or greater than the member depth Abrasion/Wear –Section loss 10% or more of the member thickness Settlement – Exceeds tolerable limits Erosion/Scour – Exceeds tolerable limits but is less than the critical limits Mechanical Damage - Distress caused by fasteners, joints or other locations exposing end grain or create pockets for moisture that has weakened or warped member Infestation – Bores, pits or pockets created from insects noted on surface and has weakened member Mold/Discoloration – Observed on surface and has weakened member

The importance of a distress, deterioration and degradation issue will be reported according to Priority 1, 2, or 3 (the same ranking system used in Sections 1 and 2):

11.4 Concrete Condition Guidance

Tower structural members, conduit, ladders, stairways, fasteners, and all other components made from Concrete must be checked for deterioration and…