Thickest mast arms

[STLmapboy]

Although lots of people regard them as monstrosities, I kind of like the sturdy look.
But here, I'm talking a notch above. Not just standard thickness in newer installs but a cut above, like this, this, or this (though the last example isn't great, there are better ones from TX). Any one else have examples?

[EpicRoadways]

Minnesota isn't exactly known for having the thickest or most sturdy-looking mast arms around, but I think this one might just barely edge out the OP's example.

These behemoths along Cedar Ave. in Apple Valley were installed maybe eight years ago (compare them to the MN standard width on the cross-street at the same intersection). What's funny is that despite the width the cross-arm still has the distinct Minnesota-style truss that most signals across the state use. Surely a monotube would've been less expensive...

(Also, the standard-sized light attachment makes it all the more strange looking and REALLY shows how fat those masts are )

[STLmapboy]

Minnesota isn't exactly known for having the thickest or most sturdy-looking mast arms around, but I think this one might just barely edge out the OP's example.

These behemoths along Cedar Ave. in Apple Valley were installed maybe eight years ago (compare them to the MN standard width on the cross-street at the same intersection). What's funny is that despite the width the cross-arm still has the distinct Minnesota-style truss that most signals across the state use. Surely a monotube would've been less expensive...

(Also, the standard-sized light attachment makes it all the more strange looking and REALLY shows how fat those masts are )

I love how they still managed the MN truss with it. I'm oddly partial to MN's design, which seems to pop up in ND a lot also.
But yeah, good example.

[KEK Inc.]

Not sure if we're counting mono-tubes (often used diagonally across interchanges that used to be span-wire or SPUI) 

Washington:
SR-9 in Turner's Corner
US-2 in East Wenatchee
SR-96 in Mill Creek
SR-509 in Kent


As far as conventional mast/mast-arms, I've noticed it's just a trend in new traffic-light mast-arm design in many states. 

California:
CA-262 in Fremont
CA-1 in Carmel-By-The-Sea
CA-79 in Temecula


Oregon:
OR-99E in Portland (ODOT; not Portland DOT's signature curved mast-arm)
US-97 in Brigg's Jct


Nevada:
NV-160 in Enterprise


Washington:
23rd Ave in Seattle (SDOT)
NE 139th St in Clark County

Florida (has the thickest from what I've seen):
FL-64 in Bradenton
FL-70 in Bradenton
DDI in Bradenton
FL-907 in Miami Beach



My guess is that thick masts are used since some DOTs are also adding cameras and microwave sensors to actuate signals (rather than inductive loop sensors) on the installation.  The added circumference might decrease the impact of high wind to stabilize the structure, especially with more sensors placed on the mast and mast-arm. 

[Ned Weasel]

Does it count if they're supported by a pole at both ends?  If so, I've always been fond of this one in Atchison, Kansas (not to mention how much I love the classic-style backlit signs): https://goo.gl/maps/dxMw8A3q43okSSXD7

And when that's not enough, you can always use a full gantry:
https://goo.gl/maps/khamKdoc3sFYW4Qi9
https://goo.gl/maps/4fTYZHqW42CKkgti8

[STLmapboy]

Nearly forgot the bulky ones on John Young Pkwy in Orlando and this famous hurricane-proof one in Pembroke Pines.

[steviep24]

NYSDOT has been installing thick mast arms lately.

https://www.google.com/maps/@43.1471152,-77.7112706,3a,75y,258.79h,90t/data=!3m6!1e1!3m4!1s69fNE2Dk09vSJr6fDRiUnA!2e0!7i16384!8i8192?hl=en&authuser=0

[STLmapboy]

Found this moderately thick one in Kentucky of all places, outside Lexington:
https://www.google.pl/maps/@37.9781988,-84.5291882,3a,39.2y,231.53h,95.03t/data=!3m6!1e1!3m4!1src7r51a5y0lryqgotjl8Pg!2e0!7i16384!8i8192

[Brandon]

Welcome to the world of WisDOT.

https://goo.gl/maps/JYf6t2m15c2xDNxM8
https://goo.gl/maps/xqLmw3rWwNQBWnaf6
https://goo.gl/maps/cm8JfX3r5rZ8vBHo9
https://goo.gl/maps/gVhkRtNJBZcX8wwR7

They went from a dainty trombone truss to those.

[Great Lakes Roads]

Here is a thick one from South Bend, IN.

https://www.google.com/maps/@41.7101793,-86.2502648,3a,75y,245.1h,87.78t/data=!3m6!1e1!3m4!1s9Ybt5AWLKBG_IWpt0Fjobg!2e0!7i16384!8i8192

[STLmapboy]

Here is a thick one from South Bend, IN.

https://www.google.com/maps/@41.7101793,-86.2502648,3a,75y,245.1h,87.78t/data=!3m6!1e1!3m4!1s9Ybt5AWLKBG_IWpt0Fjobg!2e0!7i16384!8i8192

Looks Florida-style! Indiana is the last place I'd expect to see a big thick mast.

[paulthemapguy]

Brandon basically said what I was going to say.  Wisconsin's mast arms look morbidly obese, even when they're just 20-30 feet long.

[STLmapboy]

Unusually thick Michigan mast arm outside a golf club near Petoskey. Dates from before 2007 too.

[KEK Inc.]

Here's a thick boy in Oregon.

https://www.google.com/maps/@44.2697755,-121.1716093,3a,75y,174.23h,95.57t/data=!3m7!1e1!3m5!1sIWsB17gS-CPGgfGn-XbSvQ!2e0!3e11!7i13312!8i6656!5m1!1e1

[STLmapboy]

Here's a thick boy in Oregon.

https://www.google.com/maps/@44.2697755,-121.1716093,3a,75y,174.23h,95.57t/data=!3m7!1e1!3m5!1sIWsB17gS-CPGgfGn-XbSvQ!2e0!3e11!7i13312!8i6656!5m1!1e1

Bit boxy, but still thick and brown (ignore that).

[EpicRoadways]

Well if we're counting mast arms supported by two poles, I have something waayyy better than my original submission for MN. This thing is so insane it's actually featured on the Millerbernd Manufacturing website. 

[STLmapboy]

Well if we're counting mast arms supported by two poles, I have something waayyy better than my original submission for MN. This thing is so insane it's actually featured on the Millerbernd Manufacturing website.

Sexy! I like this little detail as well.

[MCRoads]

Well if we're counting mast arms supported by two poles, I have something waayyy better than my original submission for MN. This thing is so insane it's actually featured on the Millerbernd Manufacturing website.

Is the reason it's like that because of the RR Xing?

[EpicRoadways]

Well if we're counting mast arms supported by two poles, I have something waayyy better than my original submission for MN. This thing is so insane it's actually featured on the Millerbernd Manufacturing website.

Is the reason it's like that because of the RR Xing?

Yup. Since the RR crosses at a diagonal, normal mast arms would interfere with the gates on two of the four approaches. Having the signal at a diagonal also helps with visibility since they're mounted closer to what is otherwise an extremely set-back stop line. It's actually really impressive that they managed to accomplish this without using any supplemental masts.

[STLmapboy]

Colo Springs is traditionally a span wire hub, but a newer install has this industrial style mast. Take a look at what's holding the arm to the pole. 

[RestrictOnTheHanger]

Well if we're counting mast arms supported by two poles, I have something waayyy better than my original submission for MN. This thing is so insane it's actually featured on the Millerbernd Manufacturing website.

Is the reason it's like that because of the RR Xing?

Yup. Since the RR crosses at a diagonal, normal mast arms would interfere with the gates on two of the four approaches. Having the signal at a diagonal also helps with visibility since they're mounted closer to what is otherwise an extremely set-back stop line. It's actually really impressive that they managed to accomplish this without using any supplemental masts.

Ath this point why not just use a span wire setup?

[STLmapboy]

Check out these thick boys in Delaware:
https://www.google.com/maps/@38.5856574,-75.2949255,3a,31.4y,223.88h,94.89t/data=!3m6!1e1!3m4!1smJHFHRxr-nkElijCfreCiQ!2e0!7i16384!8i8192

[MCRoads]

This intersection in Tampa that could've used a monotube... but didn't!

https://goo.gl/maps/HngZFCXCrmsTNcCz9

[STLmapboy]

Thick one outside Notre Dame, IN:
https://www.google.com/maps/@41.7101793,-86.2502648,3a,28y,12.31h,97.57t/data=!3m6!1e1!3m4!1s9Ybt5AWLKBG_IWpt0Fjobg!2e0!7i16384!8i8192?hl=en

[STLmapboy]

Thick Tampa HAWK signal.