Albert,
On average, they should be 30' tall, ~1' in diameter. Bob Grech put together a very nice tutorial on making scratch-built telephone poles. Here's a picture of one from his web site:
Click picture to enlarge
You could either e-mail or PM Bob directly for details.
Also, Rix makes a very nice inexpensive styrene telephone pole kit for ~$5. While cheap in price it's NOT cheap in quality. The kit should yield you ~15 telephone poles - with 1 to 5 crossarms on each.
Tom
https://tstage9.wixsite.com/nyc-modeling
Time...It marches on...without ever turning around to see if anyone is even keeping in step.
tstage wrote: Rix makes a very nice inexpensive styrene telephone pole kit for ~$5.
Rix makes a very nice inexpensive styrene telephone pole kit for ~$5.
Those are nice. I like their highway overpasses too. I may have to place an order.