STRUCTURAL CONFIGURATIONS AND POLE APPLICATIONS - Prestressed Concrete Transmission Pole Structures - page 12

1. Installation Cost—The cost to engineer, procure, and install the
structure
2. Life Cycle Costs—Costs associated with maintenance and replace-
ment of the structure for a 50-year service life
3. Strength Capacity—The ability to manufacture a high-strength
capacity structure
4. Custom Design Effort—The effort required to custom design a
structure for a specifi c application
5. Structural Rigidity/Switch Pole Application—The ability to design
and manufacture a rigid, low defl ection structure for switch
installation
6. Saltwater/Corrosive Environment—The ability of the structure to
withstand a saltwater/corrosive environment (e.g., coastal or
brackish water location, industrial contamination, or active soil
conditions)
7. Insect/Animal Vulnerability—The ability of the structure to with-
stand insect and animal degradation (e.g., termite and woodpecker
boring)
8. Environmental Impact—The impact the structure has to environ-
mental quality (e.g., leaching of chemical treatment)
9. Short Duration Fire Resistance—The ability of the structure to with-
stand brushfi re
10. Quality Control and Product Uniformity—Control of structure
variation and defects
11. Delivery Lead Time—The time required for a structure manufac-
turer/provider to deliver the structure after receipt of order
12. Geographic Delivery and R-O-W Access Considerations—The
ability to transport the structure to the project site; this is especially
important when right-of-way (R-O-W) access is impeded by terrain
or soil conditions
13. Ease of Handling and Erection Effort—The effort required to
assemble and install the structure
14. Weight and Crane Requirements—The length and weight of the
structure dictate the crane requirement
15. Field Drilling/Modifi cations—The ability to modify structure
attachments (e.g., insulator assembly) in the fi eld; this can be done
by drilling or welding, as applicable
16. Inspection and Maintenance Effort—The effort required to inspect
and maintain the condition of the structure
17. Ease of Replacement/Removal—The effort required to remove and
replace an existing structure of the same material type
18. Disposal/Recycle at Replacement—The ease and cost of pole
removal and disposal. Consideration to include potential re-use/
salvage value