Colorado

[thspfc]

How common is a "sun glare closure" on I-70? Ran into one today eastbound at exit 244, first time I've ever encountered that. I suppose drivers would be looking straight into the sun going up the hill there.

[JayhawkCO]

How common is a "sun glare closure" on I-70? Ran into one today eastbound at exit 244, first time I've ever encountered that. I suppose drivers would be looking straight into the sun going up the hill there.

It's more of an issue coming down the hill at sunrise, so much so that CODOT puts up signs to warn people.

https://www.codot.gov/news/2023/november/sun-glare-closures-on-eastbound-i-70-at-floyd-hill

[Gulol]

For example, take the highway between Silver Creek Junction and Heber City, Utah, which is US 40/189. It is pretty much universally known as US 40. 189 wasn't even signed at all along it until a few years ago, and still isn't fully. But Google labels it as 189. At least on the computer, you have to zoom way in before any 40 shields start popping up.

I remember UDOT having an "End 189" sign up at the US 40 junction in Heber (for traffic coming up from Provo).

Similar to the "End 36" sign where US36 meets I-25/I-270.

Or my favorite along Meadows Pkwy in Castle Rock, the standalone South 85 sign with a directional arrow before you approach the south I-25 ramp, then cross the I-25 overpass to be met with an END South 85/Begin East 86 sign.

[jlam]

Or my favorite along Meadows Pkwy in Castle Rock, the standalone South 85 sign with a directional arrow before you approach the south I-25 ramp, then cross the I-25 overpass to be met with an END South 85/Begin East 86 sign.

There's something similar to this in Lyons, where there's an END CO 7 sign at its intersection with US 36 on the western (northern?) end of the unsigned concurrency. I don't think there's a sign on the other end, since Boulder doesn't have great signage. There isn't even a sign for US 36 at that intersection.

[Plutonic Panda]

Looks like Colorado is the next state to begin using automated speed enforcement photo technology in construction zones:

https://www.denverpost.com/2025/02/03/colorado-photo-radar-highways-construction-zones/

[Elm]

I-25's Happy Canyon Road interchange will probably be rebuilt as a DDI, with construction starting 2027 at the earliest. The City of Castle Pines is leading the project and has posted a webpage here. Public meeting coming March 31.

Sounds like they may have been leaning toward a SPUI at one point (it shows up in a 2022 presentation), but the DDI is expected to be $10 million cheaper. The interchange is meant to be rebuilt before extending Happy Canyon east to Canyonside Blvd, which will make it a main outlet for the Canyons development on the east side of I-25.

(In other roadway connections, Canyonside Blvd will extend down to Crowfoot Valley Rd at Macanta Blvd. There was initially going to be a minor connector to Cinnabar Dr to give Sapphire Point / Diamond Ridge an egress other than Crowfoot Valley, but that neighborhood's been opposed, and it looks like that's down to emergency-only.)

[Great Lakes Roads]

CDOT will be rebuilding the Speer Boulevard interchange on I-25 into a DDI... As part of this project, CDOT will be rebuilding both the 23rd Ave. and Speer Blvd bridges.