Just curious. BW8 and 59 on the north side feels pretty tall, and it got me thinking. Anyone know?

Ask Jeff Alm

IH 10 @ grand parkway

The 59N/GP (going North) exchange seems as high as the I10 one.

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Ask Jeff Alm

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Hahahahahaha!

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Ask Jeff Alm

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All of the I10 interchanges are the same height, whoch you can find on citydata. The 59 interchanged mentionrd above is over 60 feet higher than any other in houston.

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All of the I10 interchanges are the same height, whoch you can find on citydata. The 59 interchanged mentionrd above is over 60 feet higher than any other in houston.

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must be how those Humble people get to downtown in less than 20 minutes.

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Ask Jeff Alm

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Are those mentioned even in Houston?

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All of the I10 interchanges are the same height, whoch you can find on citydata. The 59 interchanged mentionrd above is over 60 feet higher than any other in houston.

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you're saying the 59N/99 interchange is 175ft tall? because a google search says that I-10W/BW8 interchange is 115ft and was the 2nd-tallest in US as of 2010.

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you're saying the 59N/99 interchange is 175ft tall? because a google search says that I-10W/BW8 interchange is 115ft and was the 2nd-tallest in US as of 2010.

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Thank god you saved me the trouble of searching for this piece of obscure data.

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All of the I10 interchanges are the same height, whoch you can find on citydata. The 59 interchanged mentionrd above is over 60 feet higher than any other in houston.

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you're saying the 59N/99 interchange is 175ft tall? because a google search says that I-10W/BW8 interchange is 115ft and was the 2nd-tallest in US as of 2010.

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It might be. I completely made that post up.

The tallest HIGH mast Light pole that TxDOT has in the State of Texas is 175'. I can guarantee you that the the ones at IH 10 and US 290 at the GP are 175'. I designed and signed and sealed the lighting drawings at IH 10 @ the GP and reviewed and approved the ones at US 290 @ the GP. I think TxDOT used 175' poles all along IH 10 from IH 610 to Katy when they widened it a while back.

I reviewed the remainder of the GP including the SH 249, IH 45, Hardy, and US 59 interchange lighting and none of them used high mast in excess of 175'.

I no longer work with the guy that managed these interchange designs or I would ask him and get a definite answer.

I can confirm that the high mast poles at the Hardy/GP interchange are 175'.

I drove on I-10 this morning. Kind of makes you think.

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The tallest HIGH mast Light pole that TxDOT has in the State of Texas is 175'. I can guarantee you that the the ones at IH 10 and US 290 at the GP are 175'. I designed and signed and sealed the lighting drawings at IH 10 @ the GP and reviewed and approved the ones at US 290 @ the GP. I think TxDOT used 175' poles all along IH 10 from IH 610 to Katy when they widened it a while back.

I reviewed the remainder of the GP including the SH 249, IH 45, Hardy, and US 59 interchange lighting and none of them used high mast in excess of 175'.

I no longer work with the guy that managed these interchange designs or I would ask him and get a definite answer.

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Man you've got to work on your humble brag skills.

So...why do we build them so tall? I've always been curious of this. The construction costs have to be massive compared to building them at a more moderate height like most states outside of Texas do.

Lots of guys working on big poles up in here..

Other states don't have the widest highway in the world.

Height and spacing is a function of lanes that need to be illuminated. It's cheaper to go taller vs. more lights at shorter spacing.

I'd imagine the lack of severe winter here also makes it more feasible for us to build taller than other states.

There are the cases where we have 1 fly-over for 1 road (99 crossing 290, for example). I'm guessing the height of the 99 flyover is for future expansion, but you cannot tell me the height of that flyover was for minimum clearance of 290.

Why do we go so high on interchanges in Texas?

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Bw8 EB to 45 N NB seems pretty high- higher than 59. It's probably one of the Grand Parkway direct connectors though because they cross several levels and there aren't any below grade crossings like at beltway and i-10.

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I drove this on a motorcycle once. Scary as sheeeeet.

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The tallest HIGH mast Light pole that TxDOT has in the State of Texas is 175'. I can guarantee you that the the ones at IH 10 and US 290 at the GP are 175'. I designed and signed and sealed the lighting drawings at IH 10 @ the GP and reviewed and approved the ones at US 290 @ the GP. I think TxDOT used 175' poles all along IH 10 from IH 610 to Katy when they widened it a while back.

I reviewed the remainder of the GP including the SH 249, IH 45, Hardy, and US 59 interchange lighting and none of them used high mast in excess of 175'.

I no longer work with the guy that managed these interchange designs or I would ask him and get a definite answer.

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Man you've got to work on your humble brag skills.

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Meant to include that there is no way that these bridges are 175' above grade.

The 115' to 120' number should be correct.

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I'd imagine the lack of severe winter here also makes it more feasible for us to build taller than other states.

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That is a minor consideration but good point

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There are the cases where we have 1 fly-over for 1 road (99 crossing 290, for example). I'm guessing the height of the 99 flyover is for future expansion, but you cannot tell me the height of that flyover was for minimum clearance of 290.

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The design of that connector absolutely is based on the future connectors.

If you are familiar with the IH 10W @ GP, they built the W-S connector and it was sort of hanging out there for a while. Surprisingly the other connectors were built in short order when the GP was built between IH 10 and US 290.