10228_CMD-CEN_TOWER_Station_Hobucken_FY_15.pdf

Performed by:

For:

Site & Tower Inspection, Maintenance and Repair Report

Site Name: Station Hobucken

Tower Type: Guyed Tower

Inspection Date: May 20, 2015 Revisited: August 5, 2015

Site Location: 196 NC-33, Hobucken, NC 28537

NAD-83 Latitude: 35.247717° N

NAD-83 Longitude: -76.593154° W

Elevation: 4’

Inspectors: Brian Hills Nick Grant Revisit: Brian Hills Jon Hewitt

Table of Contents

Section Contents Page

I Inspection Summary 3 II Inspection Findings II – i Tower Foundation II – ii Tower Structure II – iii Tower Alignment II – iv OSHA Regulations II – v Grounding II – vi Lighting System II – vii Paint & Obstruction Markings II – viii Guy Anchors II – ix Guy Wires II – x Insulator Systems III Recommended Maintenance & Repairs 5 III – i Prioritized Maintenance & Repair Recommendations III – ii Estimate for Repair of Key Items 6 IV Chronological Narrative 7 V Referenced Photographs 8

Appendix A Inspection Photo Log 13 Appendix B Tower Rating System 14 Appendix C Color Rating Sheet 15 Appendix D Height Verification Form 16 Appendix E Tower Inspection Checklist 17 Appendix F Tower Cross Sectional Diagram 20 Appendix G Plumb and Tension 21

I Inspection Summary

USCG tower, Station Hobucken, is a guyed tower located in Hobucken, NC. A site and ground inspection was performed on May 20, 2015 and the site was revisited on August 05, 2015.

Extensive photographs were taken and logged (Appendix A). The tower’s height was verified (Appendix D). A Tower Inspection Checklist was completed to note deficiencies (Appendix E) and the tower was diagramed (Appendix F) for reference. Overall, the site and tower structure are in below average condition.

Inspection of the site revealed no extraordinary conditions with regard to the access road, fencing or landscaping (Photos 1-2). Grounds are clearly routinely maintained and are within acceptable standards.

Routine maintenance was performed according to the job specification and included the removal of any minor rust by way of wire brush followed by the application of spray galvanization (Photos 3, 3A & 4).

Our inspection included two ratings of the tower’s overall condition. Using the rating systems in Appendices B and C, we offer the following evaluation:

Appendix B – The tower scores a 3C with the potential for further degrading of score if the tower is left untreated.

Appendix C – The Color Rating system generally allows for a total score of 36. The max score for this tower was a 30, due to the inapplicability of 2 sections of the assessment. A tower score of 20.5 of 30 is reflective of the tower condition.

II Inspection Findings

i. Tower Foundation The tower foundation appears to be in adequate condition. We recommend a fresh coating of protective sealant be applied for future protection from the environmental elements.

ii. Tower Structure The tower base plate and leg A have split apart (Photos 5-6). This is a serious structural issue that a certified structural engineer should be consulted for to determine overall structural impact and corrective actions needed.

There are 2 bent cross members, one at 85’ and another at 89’.

These can be seen in (Photos 7-8). These bends have not broken or affected the supporting welds securing them to the tower leg.

iii. Tower Alignment The tower’s alignment is within acceptable standards as seen through transit stands from behind each anchor.

iv. OSHA Regulations The existing safety cable climb system was adjusted for proper tightness and is in good working order.

The tower does not have an installed ladder or additional footing steps. The tower does not require any additional footing.

v. Grounding The tower base is grounded by means of a grounding strap; and appears to be in good condition. Each leg is not individually grounded, but for a tower of this size the current grounding system should be sufficient.

There is currently no lightning protection system in place on the tower, with a 20’ Di Pole (Photo 9) as the highest appurtenance on the tower.

vi. Lighting System The tower has no lighting system and does not require one.

vii. Paint & Obstruction Markings The tower requires a thorough rust removal of 100% of the tower, followed by a 100% coating with zinc galvanization compound of 95% or higher.

viii. Guy Anchors The guy anchors were excavated 2 feet below grade, cleaned and coated with Tar Guard protective coating (Photos 10-12).

The anchors appear to be in good overall condition. The type of anchor heads used are uncommon to the tower industry (Photo 12A).

ix. Guy Wires The guy wires appear to be in good condition.

x. Insulator Systems The tower has no insulator system and does not require one.

5 Key Findings were identified:

1. There is no lightning protection system on the tower.

2. The tower has rust and needs to be painted.

3. The tower base plate and Leg A have split apart.

4. The foundation needs a fresh coat of protective sealant.

5. Bent cross members are found at 85’ and at 89’.

III Recommended Maintenance & Repairs

i. Prioritized Maintenance & Repair Recommendations

a. Immediate –

1. A lightning protection system should be installed at the top of the tower.

2. The rust on the tower should be removed and a new zinc galvanization coating should be applied.

3. Consult an engineer on the splitting of leg A at the base as well as the base plate splitting at leg A.

b. Within 1 Year –

c. Within 3 Years –

1. Additional sealant should be applied to the foundation.

2. Repair or reinforce bent cross members at 85’ and 89’.

ii. Estimate for Repair of Key Items

Repair Cost Estimate

Station Hobucken Description Equipment Materials Labor Total

Install Lightning Rod $225.00 $650.00 $875.00

Paint Tower with High Zinc Content Paint

$850.00 $2,500.00 $3,350.00

Engineer Analysis of Structural Cracks

$2,500.00 $2,500.00

Apply Sealant to Tower Foundation

$85.00 $250.00 $335.00

Reinforce Deflected Members

$275.00 $675.00 $950.00

Estimated Cost $1,435.00 $6,575.00 $8,010.00

IV Chronological Narrative

Date: May 20, 2015

Point(s) of Contact: MK1 Joe Lawrence, (252)-745-4000

Weather Conditions: Rain

Wind Conditions: Windy

Time Work Performed 11:00 Arrived on site, inspected the tower and grounds.

15:00 Departed the site

Date: August 05, 2015

Point(s) of Contact: MK1 Joe Lawrence, (252)-745-4000

Weather Conditions: Hot and Humid

Time Work Performed 13:00 Arrived on site, signed in with Coast Guard, held a safety meeting and site walk through. Tensioned the Guy Wires 18:15 Cleaned the site 18:30 Signed out with the Coast Guard and departed the site

V Referenced Photographs

1. Tower Overall 1A. Site Road to Tower

1B. Site Road 2. Tower Base Overall

3. Typical Rusting of Tower 3A. After Cold Galv.

4. After Cold Glav. (2) 5. Leg A Splitting

6. Leg A Base Plate 7. Bent Cross Member at 85’

8. Bent Cross Member at 89’ 9. Bay Di Pole at Top of Tower

10. Typical Anchor Overall 11. Typical Excavated Anchor

12. Typical Anchor with Tar Guard 12A. Typical Anchor Head

Additional photos not referenced in the report:

13. Coax Ground Entry Ports 14. Anemometer at 86’

15. Antenna at 94’ 16. Bottom to Top Face AB

17. Bottom to Top Face BC 18. Bottom to Top Face AC

19. Top to Bottom Face AB 20. Top to Bottom Face BC

21. Top to Bottom Face AC

Appendix A – Inspection Photo Log

Station Hobucken Tower Inspection Photograph Log Recommendations or Action Taken

No. Photo Description

1 Tower Overall

1A Site Road to Tower

1B Site Road

2 Tower Base Overall

3 Typical Rusting of Tower

3A After Cold Galv.

4 After Cold Galv. (2)

5 Leg A Splitting

6 Leg A Base Plate

7 Bent Cross Member at 85'

8 Bent Cross Member at 89'

9 Bay Di Pole at Top of Tower

10 Typical Anchor Overall

11 Typical Excavated Anchor

12 Typical Anchor with Tar Guard

13 Coax Ground Entry Ports

14 Anemometer at 86'

12A Typical Anchor Head

15 Antenna at 94'

16 Bottom to Top Face AB

17 Bottom to Top Face BC

18 Bottom to Top Face AC

19 Top to Bottom Face AB

20 Top to Bottom Face BC

21 Top to Bottom Face AC

Appendix B – Tower Rating System

Appendix C – Color Rating Sheet Station Hobucken Color Rating Sheet

Comments: Required for questions with a score of '1' or '2'

Inspection Categories RED (1) AMBER (2) GREEN (3) Score

Guy Tension condition (plumb and twist) and wire condition

Guy wires severely beyond allowable tolerances for tension, or disconnected.

Tower experiencing twist, or not plumb

Guy wires require re‐tensioning.

Guy wire tensions satisfactory. Tower is plumb with no twist. 3

Guys: connections (Thimbles, Turnbuckles, Take‐up U‐Bolts, Shackles, Pins, Bonding hardware, Insulators)

Connection has failed or will experience failure if left in current condition.

Connections are corroded or deformed but is structurally capable of maintaining load.

Connections are structurally sound and do not show signs of corrosion or deformation. 2

The type of anchor head is uncommon to tower industry standards.

Guys: anchor condition Anchor experiencing or likely to experience structural failure of concrete and/or steel.

Concrete experiencing minor spalling/cracking. Steel is rusting, pitting or needs coating.

In good condition. Concrete, anchor rod and hardware show no signs of corrosion or deformation.

Foundation: Settlement or cracking

Foundation experiencing severe corrosion/deformation/erosion.

Mechanical failure experienced or likely to occur.

Concrete experiencing minor spalling/cracking on surface. Structural integrity unaffected.

Concrete is structurally sound. No signs of deformation, corrosion or erosion to concrete or steel.

3 Recommend additional sealing as preventative maintainence.

Foundation: Support Attachments

Concrete severely corroded around base connections. Connections severely corroded/deformed or missing.

Concrete experiencing minor spalling/cracking around connections.

Connections showing signs of rust/corrosion.

Base attachements to foundation show no signs of deformation, corrosion or erosion to concrete or steel.

1 Tower base is cracked at leg to base plate connection on Leg A.

Connections: for insulator and hardware for supports

Insulator cracked/deformed and/or leaking oil. Hardware severely corrode/deformed or missing.

Insulator structurally sound. Hardware showing signs of minor corrosion/deformation. Connections rusting.

Insulator structurally sound. Connections show no signs of corrosion/deformation. N/A Tower has no insulator system.

Structure: Bent legs Tower legs experiencing significant deformation. Structural integrity compromised

Tower legs show signs of minor deformation. Overall structural integrity of tower not compromised

Tower legs are structurally sound and show no signs of deformation or structual deficiency 1 Leg A is cracked just above tower base.

Structure: Bent cross bracing

Cross members significantly deformed.

Replacement of members is required.

Cross members show signs of minor deformation. Extra bracing required for bent members.

Cross members show no signs of deformation. Structurally sound. 2 Tower has 2 bent cross members.

Appearance: Paint condition (reference AC 70/7460‐1(series))

Paint has faded or deteriorated beyond 70% paint loss. Color no longer apparent. Paint scheme is not within FAA regulation if applicable

Paint color has begun to fade, or paint has slightly deteriorated (i.e. chipping, bubbling) to less than 70% paint loss. Color is still apparent.

Recently painted or condition of paint is satisfactory. Paint meets FAA standards if required

Tower paint has faded and rust has formed on bare steel throughout the tower.

Structure: Rust or corroded members, including safety rail and ladder*

Structural members, hardware, and/or safety rail and ladder suffer severe corrosion and are not safe for use. Replacement required.

Structural members, structural connection hardware, safety rail, and/or ladder show minimal rust or corrosion, structural integrity is not compromised.

Structure does not demonstrate signs of rust or corrosion. Structural integrity is sound. 1.5 If tower goes untreated, tower will soon become unsafe to climb.

Lighting: Seals and bulbs/Junction Box & electricity (reference AC 70/7460‐1(series))

Lighting system not operational.

Electrical equipment (i.e. cables, junction box) is damaged and requires replacement.

Lighting system is operational. Light encasement or seal require replacement.

Lighting system is operational. Light structures, bulbs, and electrical equipment are satisfactory.

N/A

Tower facilities (Fencing, roads, site appearance)

Fencing compromised from deterioration or failure. Access to tower inhibited. Site maintenance required.

Roads showing signs of deterioration/deformation. Fencing corroding. Site unkempt.

Tower facilities satisfactory. Roads in good condition and fencing/gates not compromised.

Total 20.5

Tower Condition Assessment Form Instructions: Please select a value that corresponds to your observations. If '1' or '2' is selected for any question, photographic documentation shall be provided. An overall ' Tower Score' shall be awarded at the end of the form.

Appendix D – Height Verification Form

HEIGHT OF FOUNDATION (f) 3 FT From ground elevation to top of foundation.

HEIGHT OF BASE PLATE (b) 1 FT From top of foundation to top of base insulator .

HEIGHT OF TOWER (h) 97 FT From top of foundation or base insulator to top of tower.

HEIGHT OF HIGHEST APPURTENANCE (a) 15 FT From top of tower to highest appurtenance.

TOTAL HEIGHT = 116 FT

QTY APPURTENANCES

1 Anemometer 86 (Level 1)

1 Antenna 93 (Level 2)

1 Di Pole bottom 96 (Level 3)

Di Pole Top 116 (Level 4)

No lighting system

GUY LEVEL: 29 FT GUY RADIUS: 63 FT

49 FT 63 FT

73 FT 63 FT

93 FT

Station Hobucken HEIGHT VERIFICATION

MEASUREMENTS DIAGRAM

ELEVATION

TOWER LIGHTING

GUYED TOWER ONLY

Tower Height ( h )

Ground Elevation

( b )

( f )

Highest Appurtenance

( a )

Appendix E – Tower Inspection Checklist

Site: Station Hobucken Date: 5/20/2015

Pass Fail N/A General Site Information 1 General Tower Condition?

2 Tower Plumb and Twist 3 Guy Tension 4 Lighting System 5 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Site Inspection 1 Access road condition?

2 Compound fencing condition.

3 Is there misc. material/rubbish/excess vegetation in the compound?

4 Condition of landscaping (tress, shrubs, etc.)?

5 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Tower Foundation 1 Are the foundation anchor plate bolts tight?

2 Is there any sign of corrosion on the foundation plate bolts, nuts, or washers?

3 Are there any foundation plate bolts missing?

4 What is the condition of the tower leg foundation (cracking, spalling, or settling)?

5 Condition of grout around the foundation plate bolts (deterioration or crumbling)?

6 Is there evidence of low spots on foundation where water can stand.

7 Are there any double nuts/locking devices on foundation plate bolts.

8 Check that there is at least one drain hole in grout under leg base plate.

9 Check that drain hole is free of obstructions.

10 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Tower Structure 1 Spot-check at least 20% of structural bolts on vertical tower members at 25' apart on all tower faces.

2 Check 100% of leg bolt section connections 3 Leg(s) condition.

4 Check 100% of diagonal and girt welds as applicable.

5 Is tower vertical alignment twisted or distorted (visual or transit method per USCG manual)?

6 Is tower finish in good condition (galvanizing, paint, stealth material, etc) ?

7 Are there any areas of corrosion (minor corrosion to heavy pitting)?

8 Any bent or fractured members?

9 Any loose or missing members?

10 Are there loose or missing ANCO locknuts, split washers, Palnuts?

11 Are there any loose or missing bolts, nuts (examine all members and legs)?

12 Are unused handholes and/or entry ports sealed with covers?

13 Check handhole and/or entry port covers for loose, missing, or rusted hardware.

14 Check slip together sleeve joints for proper closure per the manufacturer's recommendations.

15 Check condition of tower material (steel, wood, laminated wood, concrete, stealth, etc).

Pass Fail N/A Tower Structure - Continued 16 Check for untreated drill holes (galvanizing, painted, preservation, etc.)

17 There are no further exceptions for this section not previously addressed by another question.

USCG Tower Inspection Check List

Pass Fail N/A OSHA Regulations 1 Is there a safety climb system? Is the climbing path free from obstructions?

2 Is the safety climb system properly installed and secure?

3 Is the safety climb system equipped with a safety climb cable or rail safety clamp?

4 Does the safety climb cable or rail safety clamp work properly?

5 Is the tower equipped with a ladder, step bolts, or other type of climbing device?

6 Ladder climb clearance - Is the space between the rung and tower at least 7 inches?

7 Ladder back clearance - At least 30" of space behind the climbing side of the ladder?

8 If the tower has a platform, is it equipped with ladderway opening protection?

9 Is the platform in satisfactory condition? All connections to tower should be tight.

10 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Grounding 1 Is the tower base properly grounded?

2 Are there any deficiencies in the overall ground system?

3 Are ground wires and connections in satisfactory condition?

4 Ground straps in good condition & correctly bonded to the base with a single 8 AWG bonding wire.

5 Check that ground wires have no bends less than the recommended bend radius.

6 Is there a lightning protection system (lightning rod, static dissipation array, etc.)?

7 Is lightning rod at highest point?

8 Are the entry port and related components properly grounded?

9 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Lighting System 1 All tower lighting lamps have been replaced & system is operating properly (flashing, steady burn, etc)?

2 All transfer relays are functioning satisfactorily.

3 Are all lighting fixtures mounted securely?

4 Are the lenses and red liners on the lights clean, unbroken, and properly installed?

5 Are the safety chains and latches in good condition?

6 Are connections in junction boxes in good condition?

7 Does the photocell operate properly (cover and verify)?

8 Are light fixture gaskets properly installed and in satisfactory condition?

9 Are junction boxes weather tight and secured to the tower?

10 All junction box gaskets & screws coated with silicone grease.

11 Is conduit secure, unbroken, and rust free?

12 Is electrical wiring cracked, corroded, or brittle?

13 Is wiring insulation resistance within at lease 1 mega-ohm as measured with a megger?

14 Is lighting cable secured to structure according to USCG standard?

15 Are the beacon and sidelight sockets in good condition?

Pass Fail N/A Lighting System - Continued 16 Is the internal wiring of the beacon(s) in good condition?

17 Are ice shields installed over the beacon(s)? If so, are they in good condition?

18 Are vent and drain holes clear of obstructions?

19 Are beacon and obstruction lamps in adequate condition?

20 Condition of lighting systems isolation transformers ring coils.

21 Is isolation ring insulation resistance within at lease 1 mega-ohm as measured with a megger?

22 Isolation transformer ball gaps in good condition & correctly spaced per USCG specifications 23 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Paint and Obstruction Marking 1 Is the overall condition of the paint good (peeling, flaking, faded, etc)?

2 Is the FAA marking in compliance with the latest version of the FAA Advisory Circular?

3 Is the tower and/or transmission lines properly colorbanded (7 bands, red at bottom)?

4 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Guy Anchors 1 Are the guy anchors clear from brush and vegetation?

2 Do the guy plates and rods exhibit any forms of bends and/or fractures?

3 Is there any signs of cracking, weathering and/or creepage on the guy anchor foundations?

4 Are turnbuckles fully extended or contracted? Overall condition?

5 Are the anchors properly grounded?

6 Is there a cathodic protection ground system in place?

7 Are there any corroded areas?

8 Check for lateral alignment of guy anchor rods.

9 Do the guy anchor rods show any signs of corrosion (12" - 18" below grade)?

10 Are the guy anchor rods coated with a bituminous coating?

11 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Guy Wires 1 Are there any signs of broken strands or insulators as seen through binoculars?

2 Do the insulators and bushings show any signs of or potential for RF arcing.

3 Are the guy dampers secured and in good condition?

4 Insure that the shakles, clevices, thimbles and cotter pins, and crosby clamps are tight?

5 Are the guy wires properly grounded?

6 What is the condition of the pre-form grips?

7 Is there any corrosion on the guy wires or guy hardware?

8 Is each turnbuckle safety wire installed and secured?

9 Are guy wire connections in satisfactory condition?

10 Are ice breakers installed on pre-form grips?

11 Are structural & radial guy, alignment & twist values within 5% allowable tolerances?

12 Are the tension values within 5% +/- of allowable guy tension ranges?

13 There are no further exceptions for this section not previously addressed by another question.

Pass Fail N/A Insulator Systems 1 Has the integrity and oil level in base transformer been maintained?

2 Is the base insulator system clean, free of cracks, broken elements or signs of corrosion?

3 The sealing compound of the base insulator is intact.

4 Base insulator ball gaps in good condition & correctly spaced per USCG specifications 5 Guy insulators are free of cracks or chips, as seen through binoculars.

6 All insulators show no signs of being excessively cocked (seen through binoculars).

7 All fiberglass rod insulators are free of significant twist (seen throught binoculars).

8 All fiberglass rod insulators are free of resin deposits (seen through binoculars).

9 All fiberglass rod insulators free of signs of ultraviolet deterioration (seen through binoculars).

10 All insulators & bushings show no signs of or potential for RF arcing (seen through binoculars).

11 There are no further exceptions for this section not previously addressed by another question.

Appendix F – Tower Cross Sectional Diagram

Station Hobucken Tower Cross Sectional Diagram

N

Climbing Face

A

C B

Appendix G - Plumb and Tension Report

Station Hobucken Guy Wire Tension with Plumb

Guy Level (1, 2, 3L, 3R, etc.)

Guy Elevation

(ft)

Type:

(EHS/BS)

Anchor Distance (A)

(ft)

Anchor Distance (B) (ft)

Anchor Distance (C) (ft)

Anchor Elevation (A) (ft)

Anchor Elevation (B) (ft)

Anchor Elevation (C) (ft)

A Anchor Temp (°F)

Recorded Tension (A)

(lbs)

High/Low (% BS) B Anchor Temp (°F)

Recorded Tension (B)

(lbs)

High/Low (% BS) C Anchor Temp (°F)

Recorded Tension (C)

(lbs)

High/Low (% BS)

1 30.0 EHS 65.0 65.0 60.0 0.0 0.0 0.0 90 540 OK (10.2%) 90 520 OK (9.9%) 90 540 OK (10.2%) 2 48.0 EHS 65.0 65.0 60.0 0.0 0.0 0.0 90 560 OK (10.1%) 90 560 OK (10.1%) 90 580 OK (10.3%) 3 72.0 EHS 65.0 65.0 60.0 0.0 0.0 0.0 90 560 OK (9.6%) 90 560 OK (9.6%) 90 600 OK (10.1%) 4 93.0 EHS 65.0 65.0 60.0 0.0 0.0 0.0 90 600 OK (9.8%) 90 600 OK (9.8%) 90 640 OK (10.4%)

Elevation (ft) Face Width (in)

Fraction Leg Dia.

Out (A)

Fraction Leg Dia. Out (C)

Relative Twist Total Twist Relative Plumb Total Plumb Guy Level Minimum (A) Target Tension (A)

Maximum (A) Minimum (B) Target Tension (B)

Maximum (B) Minimum (C) Target Tension (C)

Maximum (C)

30.0 12.00 0 - 1/4 OK (-0.7°) OK (-0.7°) OK (0.17'') OK (0.17'') 1 460 526 591 460 526 591 464 530 595

48.0 12.00 0 - 1/2 OK (0.0°) OK (-0.7°) OK (0.27'') OK (0.44'') 2 491 557 622 491 557 622 497 563 628

72.0 12.00 0 - 1/2 OK (0.7°) OK (0.0°) OK (0.14'') OK (0.58'') 3 525 591 656 525 591 656 531 597 662

93.0 12.00 - 1/4 - 1/2 OK (0.0°) OK (0.0°) OK (0.19'') OK (0.76'') 4 545 611 676 545 611 676 551 617 682

Elev. x

30.00 0.144''

48.00 0.433''

72.00 0.577''

93.00 0.722''

Work Completed By: Brian Hills

Site Name: Station Hobucken Site ID:

Site Address: 196 Highway 33

Hobucken, NC 28537

Date Tension Completed: 8/06/2015 Wind Speed: 0-5 Wind Direction:

Northern Pride Communications 207-798-5540

Wire Information Anchor Radius Relative Anchor Height (Rise/Fall) Tension

1/4 10.00%

Company and Contact #:

Wire Size (in) Initial Tension (% BS)

1/4 10.00% 1/4 10.00% 1/4 10.00%

C Plumb and Twist TARGET TENSIONS AND PASSING RANGES AT RECORDED TEMPERATURE FOR REFERENCE (automatically generated)

Leg Diameter (in)

Fraction Leg Dia.

Out (B)

1.00 3/4

A B

1.00 0

1.00 1/4

1.00 1/2 y 0.083'' 0.083'' 0.000'' -0.250''

Notes:

1) In the Plumb and Twist Columns a "-" means the tower is out of plumb to the left or twisting in a clockwise direction.

2) The center of the tower, in plain view at each elevation, is located by variables x and y positions relative to the base center.

The x direction is through the center to the northern leg.

END OF REPORT