this post was submitted on 25 Nov 2023
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Today I Learned

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Road salt on the city’s bridges raised the river’s chlorine levels, making the water more corrosive. This has continued into the present and may have been one reason poorly-treated Flint River water was so damaging to metal pipes.

I shared this because my city doesn't use rock salt during winter, and its pretty inconvenient as a driver. So I was surprised to learn why.

It's disingenuous to say it's the PRIMARY contributor, but it is a factor!

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[–] [email protected] 35 points 9 months ago* (last edited 9 months ago) (3 children)

Same thing caused the I-35W Mississippi River bridge collapse* in Minneapolis. Take cues from the Norwegians and Swedes; crushed rock for traction, spiked tires for traction and no chemical salt to fuck up your land and waterways.

Snow was here before humans and will continue long after we exterminate ourselves from the planet. Learn to live with it and stop fighting nature.

Edit: a word*

[–] [email protected] 20 points 9 months ago (1 children)

It also rusts the shit out of cars which is why 3 year old cars from the midwest resemble 30 year old cars from the west coast. I wonder if anyone has ever calculated all the lost capital caused by salting roads. I bet it's insanely high with the infrastructure and property damage alone.

[–] shalafi 4 points 9 months ago

I was stunned moving to Chicago from Tulsa! Back home we only use sand, which is annoying as hell as it doesn't go away as easily.

But damn, cars rusted out overnight. The crappy minivan I drove down to Florida had to be trashed within 2-months of arriving. Undercarriage so rotten it wasn't sane to repair the brakes. And that was after a fuel line popped a week before!

Wondered why I didn't see many old cars in Chicagoland.

[–] dual_sport_dork 8 points 9 months ago

This would require people in America to learn how to drive in the snow (or just stay the fuck at home if they won't learn) and we won't have that. I instead, if I lead-foot myself into a telephone pole in the snow I'll sue!!!!!

[–] plantsmakemehappy 4 points 9 months ago (1 children)

Source for the claim about the I-35W bridge?

[–] [email protected] 4 points 9 months ago* (last edited 9 months ago) (1 children)
[–] plantsmakemehappy 3 points 9 months ago* (last edited 9 months ago) (1 children)

Except that reference isn't about I-35W, it's about the Lake County Grand River Bridges.

ETA: Page xiii

_The National Transportation Safety Board determines that the probable cause of the collapse of the I-35W bridge in Minneapolis, Minnesota, was the inadequate load capacity, due to a design error by Sverdrup & Parcel and Associates, Inc., of the gusset plates at the U10 nodes, which failed under a combination of (1) substantial increases in the weight of the bridge, which resulted from previous bridge modifications, and (2) the traffic and concentrated construction loads on the bridge on the day of the collapse. Contributing to the design error was the failure of Sverdrup & Parcel’s quality control procedures to ensure that the appropriate main truss gusset plate calculations were performed for the I-35W bridge and the inadequate design review by Federal and State transportation officials. Contributing to the accident was the generally accepted practice among Federal and State transportation officials of giving inadequate attention to gusset plates during inspections for conditions of distortion, such as bowing, and of excluding gusset plates in load rating analyses.

Before determining that the collapse of the I-35W bridge initiated with failure of the gusset plates at the U10 nodes, the Safety Board considered a number of potential explanations. The following factors were considered, but excluded, as being causal to the collapse: corrosion damage in gusset plates at the L11 nodes, fracture of a floor truss, preexisting cracking, temperature effects, and pier movement._

[–] [email protected] 1 points 9 months ago

Good thing you read more of it than I did. I just searched the document for the word “salt”!

I was surprised to hear the claim too. I thought I had read years ago that it was metal fatigue at the welds. Akin to a paper clip being bent to many times some of the welds fatigued to failure due to years of flexing.

[–] [email protected] 29 points 9 months ago (2 children)

The DOT around my area has started using cheese brine to pre treat the roads and it has been doing a pretty decent job.

[–] bigredgiraffe 31 points 9 months ago (1 children)

Do you live in WI? I am from there and that sounds like the most Wisconsin sentence ever haha!

[–] [email protected] 23 points 9 months ago (1 children)
[–] agent_flounder 9 points 9 months ago (1 children)
[–] Donovar 8 points 9 months ago (1 children)

Ope! Just gonna squeeze past ya quick.

[–] Nurse_Robot 7 points 9 months ago

Doncha know?

[–] Geek_King 26 points 9 months ago (1 children)

Being in Wisconsin as well, I always wonder how the environment copes with crazy amount of salt that gets used on the roads during bad winters. We've had winters where they ran out of salt and started using sand.

[–] [email protected] 30 points 9 months ago

Salting the roads is just another stupid thing we do to destroy everything around us

https://news.climate.columbia.edu/2018/12/11/road-salt-harms-environment/

[–] [email protected] 4 points 9 months ago

Long but great read. Thanks for sharing.

[–] [email protected] -5 points 9 months ago (1 children)

One more reason to not have cars.

[–] BassTurd 14 points 9 months ago (4 children)

Do you just bike and walk in ice all winter?

[–] dual_sport_dork 9 points 9 months ago (1 children)

"JuSt TaKe PuBlIc TrAnSiT!"

Oh wait, they shut that down in my state the instant the first flurry hits the ground. "For safety."

[–] CrayonRosary 7 points 9 months ago (1 children)

If cities were designed to use public transport first, you wouldn't be making fun of it. It's not our fault cities suck at managing transportation.

[–] shalafi 2 points 9 months ago (1 children)

What if I don't live in a city and do not wish to?

[–] [email protected] -4 points 9 months ago

Then accept that you don't have on demand access to everything.

[–] [email protected] 3 points 9 months ago

Sled dogs and x-country skis

[–] [email protected] 2 points 9 months ago

You think it doesn't snow in Scandinavia?

[–] fireweed -2 points 9 months ago (2 children)

Not op, but yes? Like people have been doing since homo erectus first migrated to snowy places?

[–] CaptainPedantic 5 points 9 months ago

Last I checked, Homo erectus didn't spend a lot of time walking around on concrete. Nor did they have bicycles.

No matter the mode of transportation, in a built up environment where you're moving on smooth surfaces where ice can form easily, you need some form of de-icing, sanding, and/or studded tires/shoes.

[–] RampantParanoia2365 4 points 9 months ago