ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 1 of 8
ATI Australia Tower Inspection Report
DELWP Crowes Lookout
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 2 of 8
________________________________________________________________ Report Title: Tower Inspection Report – DELWP Crowes Lookout Network Location: Victoria Report Revision: 1.1 Report Author: Peter Choquenot – ATI Australia Report Date: Thursday, 5 August 2021 ________________________________________________________________ Contents
1. Document Control ............................................................................................................ 3 2. Overview ........................................................................................................................... 4
2.1 Purpose ...................................................................................................................... 4
2.2 Scope ......................................................................................................................... 4
3. Method ............................................................................................................................. 4 4. Site Summary .................................................................................................................... 5
4.1 DELWP Crowes Lookout ............................................................................................. 5
5. Tower Survey .................................................................................................................... 6 5.1 Tower details ............................................................................................................. 6
5.2 Tower Condition. ....................................................................................................... 7
5.3 Tower Loading ........................................................................................................... 7
5.4 Condition of Vertical Infrastructure .......................................................................... 7
5.5 Line of Sight ............................................................................................................... 7
6. Summary ........................................................................................................................... 8
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 3 of 8
1. Document Control
Author
Name Location Position
Peter Choquenot ATI Australia Engineer
Distribution List
When this document is updated, the following people must receive a copy:
Name Location Position
Ryan Thomas ATI Sydney Engineering Manager
Garry Odonahoo ATI Sydney Technical Manager
Peter Choquenot ATI Sydney Technical Director
Document History
Version Date Amendment
1.0 22/2/2021 Draft
1.1 22/4/2021 Update
1.2 5/8/2021 Correction to LoS statements
Review and Approval
Name Role Date Signature
Ryan Thomas Engineering Manager
Garry Odonahoo Technical Manager
Peter Choquenot Technical Director
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 4 of 8
2. Overview
2.1 Purpose This document describes the process undertaken by ATI Australia to investigate the condition of vertical infrastructure and line of sight on behalf of Clarendon College at the DELWP Crowes Lookout Communications site.
2.2 Scope This report will document:
• The overall condition of the site, including vertical infrastructure, installed components on the tower, compound and communications enclosure.
• Any items of concern resulting from the surveys regarding the vertical infrastructure, installed components on the tower, compound and communications enclosure and recommend remedial action
• Confirmation of the current installations upon the tower
• Estimation of the current tower structural load as well as available headroom for new installations
3. Method The following is a summary of the method used to survey the condition of the installation.
• Confirm or cross check site locations using: o Site Address/GPS Co-ordinates o Google Earth
• Attend site to perform survey of compound, structure and building.
• Assessment of any existing structural analysis.
• Photos to be taken of the site.
• Provide results and relevant photos of the site.
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 5 of 8
4. Site Summary
4.1 DELWP Crowes Lookout
Latitude: 38°41'44.16"S
Longitude: 143°21'19.49"E
Site Address: 5102 Great Ocean Road, Lavers Hill, Victoria
Nearest Town: Lavers Hill
Nearest Cross Road: N/A
ACMA Site ID: 42147
Access: Two wheel drive
Site Photo: DELWP Crowes Lookout
40 N Image © 2021
Image © 2021
© 2021
© 2021
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 6 of 8
5. Tower Survey This section presents the findings of the site survey for the condition of the vertical infrastructure installed at DELWP Crowes Lookout.
5.1 Tower details DELWP Crowes Lookout is a 35 metre square steel lattice tower with a fire watch hut on top. The manufacturer of the tower is not known, and was not evident from the site visit.
Figure 1. Tower at DELWP Crowes Lookout
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 7 of 8
5.2 Tower Condition. The tower looks to be in good condition. There is evidence of significant rusting and deterioration of the tower componentry at its base.
5.3 Tower Loading
The tower is substantially loaded almost exclusively at the head height of the tower.
5.4 Condition of Vertical Infrastructure There is evidence of significant corrosion of the base of the tower componentry. This is present on all four tower legs as they attached to the tower’s foundations. Structural design information supplied implies that the tower is overloaded.
Figure 2. Strengthening and repair of tower base.
5.5 Line of Sight The line of sight between the tower and the target facility near Port Campbell is clear from a low level. The Line of sight to the target location in Yuulong is blocked by several tree lined ridges to the SW of Crowes, a tower would be needed at that site to achieve line of sight.
ATI Australia Site Inspection Report
Clarendon College DELWP Crowes Lookout
Date: Thursday, 5 August 2021
Document revision: 1.2 8 of 8
6. Summary The site at DELWP Crowes Lookout is not appropriate for use by Clarendon College for the following reasons:
• No line of sight to the target location
• Tower is short, poorly positioned and overloaded