Hubby Dear's got Excel... and He's Not Afraid to Use It

Yesterday Hubby Dear and I took advantage of the amazingly lovely weather (76 degrees and very low humidity. Wow!) and went outside to measure and plot our chicken run/moat.

We're going to begin work on the fencing soon, so it was imperative that we got accurate measurements. Mere measurements weren't enough for my uber-analytical spouse. Anything worth doing is worth doing with an Excel table, right? Here's the diagram he created:

A diagram of our future chicken palace/moat/garden combo 

We're researching the best fencing options to use (ideas welcome from experienced chicken owners!), but the point of greatest concern to me is the gate into the garden. In order for this to be a true chicken moat, the chickens have to be able to go all the way around the garden, but yet stay secure in the run. That means we have to either create some sort of tunnel (like the one used in this chicken moat installation) or bridge and underpass (see an example here).  What do you think? Will chickens actually go through a tunnel? Sounds kinda like a low-budget circus act to me.

Hubby Dear was on a roll after he finished the chicken moat diagram so he began to plot out our orchard-to-be. We have three pecan trees arriving in November and apples in the spring. You can bet Hubby Dear will have it all plotted out perfectly months in advance. Gotta love having a geek for a husband! (Seriously, I love it. Other than the fascination with Star Trek. That I could do without.)

Calling all poultry fanciers! Hubby Dear and I could use your best chicken run construction tips, plus your opinion on the chicken moat bridge vs. tunnel debate.