6905 Z1 Exhibit A Inspection Report.pdf
PDF 5 MB Posted
- Solicitation number
- 6905 Z1
- Issued by
- Saline County, Nebraska
About this file
This document is an Inspection Report for the KUON broadcast tower located in Ithaca, Nebraska, conducted by Precision Communications, LLC. The report details the current condition of the tower, including rust on the ladder, loose or missing banding on diagonal members, bent diagonal members, lack of a safety climb cable system, and issues with the guy wire tensions and concrete foundations at the anchor points. The report provides detailed recommendations for remedial actions, prioritizing the replacement of several bent diagonal members. This report appears to be related to a Request for Proposal (RFP) Number 6905 Z1 issued by the State of Nebraska, Department of Administrative Services, Materiel Division, State Purchasing Bureau, seeking a qualified contractor to provide KUON TV Tower Cross Member Replacement and Remediation at a Competitive and Reasonable Cost. The resulting contract may not be an exclusive contract, as the State reserves the right to contract for the same or similar services from other sources.
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Other files
| File | Type | Posted |
|---|---|---|
| 6905 Allstate Response.pdf | ||
| 6905 Z1 Revised Evaluation Criteria.docx | DOCX document | |
| 118643 O5 RFP.doc | DOC document | |
| 6905 Z1 Addendum Four Revised Schedule of Events.pdf | ||
| 6905 Z1 Addendum Two Q&A.pdf | ||
| 6905 Z1 Addendum One Revised Schedule of Events.pdf | ||
| 6905 Z1 Exhibit A Inspection Report.pdf | ||
| 6905 Z1 Revised Cost Proposal.xlsx | XLSX spreadsheet | |
| 118643 O5 RFP.pdf | ||
| 6905 Precision Response.pdf | ||
| 6905 Z1 Attachment A - Technical Requirements.docx | DOCX document | |
| 6905 Z1 RFP Respondents List.pdf | ||
| 6905 Z1 Addendum Three Revised RFP Webinar Link.pdf | ||
| 6905 Z1 Final Evaluation Document.pdf | ||
| 6905 Z1 RFP Intent to Award.pdf | ||
| 6905 National Tower Response.pdf | ||
| 118643 O5 RFP.pdf | ||
| 6905 Z1 Cost Proposal.xlsx | XLSX spreadsheet | |
| 6905 Z1 Attachment A - Technical Requirements.docx | DOCX document | |
| 6905 Z1 Evaluation Criteria.docx | DOCX document | |
| 118643 O5 RFP.doc | DOC document |
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Text version
INSPECTION
REPORT
918.789.8084
KUON
Ithaca, NE
XXXX Z1
Exhibit A
P~=:CISl0 N
Precision Communications, LLC Phone: 918-786-8084
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Summary
DATE: 11/11/2023
LOCATION: Ithaca, NE
Type: Guyed
Height: 770’
INSPECTOR: Ken Rickhoff
FCC: 1029935
Ken Rickhoff of Precision Communications, LLC. completed a physical inspection of the KUON broadcast tower. Conditions then existing on the tower were noted and photographed. This report describes those conditions, includes reference photographs, and recommendations for any needed corrective action.
The contents of this report, including the recommendations, are based on a visual condition assessment per the TIA 222 Structural Standard for Antenna Supporting Structures and Antennas, Annex J. No type of structural analysis or testing of individual components is included or implied.
The tower owner is responsible for maintaining the tower and its components and fulfilling any requirements of the FCC, FAA or any other governing body under which the tower or any of its components are subject.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Recommendations
There are areas of surface rust on the ladder where the galvanizing appears to be worn off. We recommend that the rusting areas be treated.
Ref: Photos 4, 5, & 7
The banding that secures diagonal members at their intersections is loose or missing in multiple sections throughout the tower. The banding is stretching over time. These conditions can cause wear and loss of steel where the diagonal members rub and hit each other at the intersections. We recommend that the banding be removed from all diagonals throughout the tower and replaced with U-bolts and backing plates.
Ref: Photos 16, 17, 18 – 22, & 26
There is surface rust at the intersection of some diagonal members that have loose or missing banding. We recommend that all rusting areas be treated and coated with a high zinc content primer when the bandings are replaced with U-bolts and backing plates.
Ref: Photos 20, 22, & 28
One diagonal member in Section #10, Bay #2, on Face B is bent. We recommend that this member be replaced. **Priority
Ref: Photo 22
One diagonal member in Section #15, Bay #1, on Face C is bent at the upper and lower ends of the member. We recommend that this member be replaced. **Priority
Ref: Photos 23 & 24
One diagonal member in Section #17, Bay #3, on Face A is bent. We recommend that this member be replaced. **Priority
Ref: Photo 25
One diagonal member in Section #30, Bay #3, on Face B is bent. We recommend that this member be replaced. **Priority
Ref: Photo 26
Note: All of the diagonals are mounted to the outside of the gusset plates, and this is causing them to bow at their intersections. Some look worse than others for this reason. Upon replacement of the damaged diagonal members, installing the new rods at the inside of the gusset plates would help reduce the bowing around each other.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Recommendations continued
The ladder does not have a safety climb cable system. We recommend that one be installed to comply with the ANSI TIA 222-G 12.3 code. **Priority
Ref: Photo 14
There are multiple brackets secured to the back side of the ladder at several elevations throughout the tower. The brackets are impeding the climbing area and some look to be preventing the climber from putting his foot directly on the ladder rung, and more on the C-channel that is bolted to it. This represents a potential climbing hazard and is a safety concern.
We recommend that two runs of rigid conduit be installed to support the coax lines, and the brackets be removed from the ladder. **Priority
Ref: Photos 13, 14, 28, & 29
The ladder is significantly bowed at two locations just below the second guy level. This represents a possible climbing hazard and is a safety concern. We recommend that the bowed ladder sections be replaced, and that all U-bolts securing the ladder be checked and tightened throughout the tower, as needed. **Priority
Ref: Photo 28
Guy wire levels #5 and #6 are not within the current TIA tower specifications for guy tensions.
We recommend adjusting the tensions at these levels. The rest of the tensions and vertical alignment are within specifications. **Priority
Ref: Page 22
There are areas of surface rust on the guy wires, mostly at the upper elevations of each wire. We recommend treating the guy wires with an anodic self-priming paint or paraffin wax to prevent the progression of the rusting.
Ref: Photos 39 - 43
There are broken chunks of concrete at the outer anchor A foundation, and slight cracks in the concrete at the inner anchor B and outer anchor C foundations. We recommend that the outer anchor A foundation be repaired, and the cracks in the concrete at the inner anchor B and outer anchor C foundations be patched and sealed.
Ref: Photos 32 - 34
Several cables and flexible lines to ancillary antennas were found to be unsecured at several locations. The lines were temporarily secured with electrical tape and nylon zip ties during the inspection. We recommend that the lines be secured with proper stainless steel hardware, and that the broken hangers that have slid down the line in section #15 be removed.
Ref: Photos 50, 51, 54, 506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Recommendations continued
The hoisting grip for the flexible line feeding the dipole antenna in section #20 is secured with a butterfly clamp. We recommend that the grip be supported with stronger hardware.
Ref: Photo 53
There is light to moderate surface rust on the mount for the dipole antenna in section #20. We recommend that the rusting areas be treated and coated with a high zinc content primer.
Ref: Photo 52
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Broadcast Photographs 1 - 10
Main Antenna: Andrew ATW16V5-HTO -12
Center of Radiation: 820’
Transmission Line: RCA 6-1/8” rigid coax with Marmon flanges
Profile view of main antenna. Photo also shows faded and missing paint.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Antenna base mount.
Transmission line input and top fixed hanger.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Transmission line elbow complex below the antenna input. Photo also shows some surface rust on the ladder.
Fixed hangers below the top elbow complex. Photo also shows some surface rust on the ladder.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Transmission line location in the tower.
Typical spring hanger. Photo also shows surface rust on the ladder.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Transmission line elbow complex at the tower base.
Transmission line in the bridge.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Transmission line entering the building.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Structure Photographs 11 - 29
Manufacturer: Stainless G-7
Type: Guyed
Height: 770’
The sections of tower appeared in satisfactory condition. The paint coverage has faded and worn off at some elevations. The climbing ladder does not have a safety climb cable system installed.
The lightning rod assembly above the top mounted antenna appeared in satisfactory condition.
Profile view of tower.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical leg splice and gusset plate connections.
Typical bracing configuration. Photo also shows C-channel brackets secured to the back side of the ladder.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
The climbing ladder without a safety climb cable system. Photo also shows C-channel brackets secured to the back side of the ladder.
Grounding at the tower base.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical missing banding at the intersection of diagonals.
Typical missing banding at the intersection of diagonals.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical loose banding at the intersection of diagonals.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical loose banding at the intersection of diagonals. Photo also shows rust at the intersection of the diagonal members.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Bent diagonal member in Section #10 with 1” deflection. Photo also shows rust at the intersection of the diagonal members.
Bend at the lower end of diagonal member in Section #15.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Bend at the upper end of diagonal member in Section #15.
Bent diagonal member in Section #17.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Bent diagonal member in Section #30. Photo also shows loose banding and surface rust at the intersection of the diagonal members.
Surface rust on the ladder.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
C-channel mounting brackets secured to the ladder below guy level #2. Photo also shows two significant bows in the ladder.
C-channel mounting brackets secured to the ladder below guy level #4.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Guy Wires Photographs: 30 - 43
Guy Levels: 6
Vertical Alignment
The vertical alignment of the tower was measured with a transit set up in two locations
90° apart from each other. Facings were verified using a lens tic compass.
Temperature: 55 degrees Wind: 5 mph
Guy
Level
Transit A Facing Leg A 0 Transit B Facing Leg A 90
Left Ø Right Left Ø Right
1 Ø Ø
2 Ø Ø
3 Ø Ø
4 Ø Ø
5 Ø Ø
6 Ø Ø
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Guy Wire Tensions
The tensions of the guy wires were measured from the A anchor with an intercept scope. The recommended tension intercept readings are at 55 degrees off the provided temperature chart.
The acceptable tolerance for tensions on the guy wires is plus or minus 5%, according to .
documents provided by SpectraSite.
Temperature: 55 degrees Wind: 5 mph
Guy
Level
Measured
Intercept / Sag (Feet)
Recommended
Intercept / Sag (Feet) Percentage
1 10’ 10.5’ + 0.4 %
2 R 15’ 14.6’ - .02 %
2L 14.8’ 14.6’ 0 %
3 24’ 25.3’ +0.5 %
4 R 88’ 92’ +4 %
4L 87’ 92’ +4 %
5 92.4’ 81.3’ -11 %
6 96’ 83.6’ -12 %
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Inner anchor A with brush growing on the guy wires.
Inner anchor A after removal of brush by the inspection crew.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Broken concrete at the outer anchor A.
Small cracks in the concrete at the inner anchor B.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Small cracks in the concrete at the outer anchor C.
Typical fencing at the anchors, and dampers on the guy wires.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical grounding cable connections on guy wires.
Typical tower connection for guy wires at levels #1, #3, #5, & #6.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical tower connection for guy wires at double guyed levels #2 & #4.
Typical areas of surface rust on at the upper end of a level #3 guy wire.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical areas of surface rust on a level #3 guy wire.
Typical areas of surface rust on a level #4 guy wire.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical areas of surface rust on a level #5 guy wire.
Typical areas of surface rust on a level #6 guy wire.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Lighting
Photographs: 44 - 49
Lighting type: Dialight LED Dual Mode System
Levels: 4
Typical flash head and ice shield.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Typical controller box.
Location of rigid conduit in the tower.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Light fixture level #2.
Junction box at light level #2.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Ancillary Photographs 49 - 54
Flexible lines to ancillary systems
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Flexible line to the dipole antenna in section #20 was unsecured. The line was temporarily secured with electrical tape during the inspection.
Broken hangers that slid down a flexible line in section #15. The crew temporarily secured the line with zip ties.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Surface rust on the mount for the dipole antenna in section #20.
Hoisting grip for the flexible line feeding the dipole antenna in section #20 secured with a butterfly clamp.
506 Industrial Road Fax: 918-786-8827
Grove, OK 74344 Email: pci@pcitower.com
Unsecured flexible line noted in photo #50, before being temporarily secured by the inspection crew.
File details come from the government source that posted it. Updated .