Why do you not have gutters?

Rain chains with a catch basin.

Get 2 concrete urn pots from Lowe's (21" W x 28" H, $95.48 each).

Snow

I am in the snow country and have quite few of those.

If water falling from roof is damaging concrete you have a classic example of "elephant in the room". Handling roof runoff is child's play compared to problems that result from poorly installed concrete. If concrete is being damage by water, structural failure of concrete is eminent.

There's nothing op in this case can do now but for benifit of lurkers that build a house (or other work requiring concrete) in the future. Concrete crews are notorious for watering concrete down to make it easier to spread and every drop added after leaving plant weakens the final product. Got it? Just tell them not to add water or if you don't trust them,watch or have your neighbor watch to make sure they don't ?????? Not so fast,there's more to it,,,,lots more and you won't hear it on forums like this nor online reviews. If this is the first you have heard this or unless you have so much experience you can judge slump without using a cone, you could watch them pour 3 truckloads of "soup" and be non the wiser. The dirty truth is builders,delivery drivers,concrete crews,job formen,concrete plants and others are all in on it. Do your own research on "concrete slump" so you know I'm not just another key jockey passing out worthless advice then come back to hear how they collude to "pull the wool over your eyes".

Slimy ,do anything for a dollar builder make's under table deal with concrete plant and concrete crew he will not challenge slump and in exchange they give builder "special deal". The crew is all grins because they can pour twice as much soup for slimy britches as they could for "earn what I pay you" Klem. The plant is ok with it because they can expect slimy pants to give them his business. You must specify what psi you want when ordering and most jurisdictions mandate plant specify psi on ticket for every load of mix. Plants adhere to the rule because the fine if caught doing otherwise is significant plus as you'll see it isn't necessary for plant to add extra water. Plants require driver to make a note on ticket if and how much water is added on site but who besides slimy pants will see ticket after notation is on it. Crews and drivers have signals that rival pro baseball catchers for when and how much water to add. Unlike the old days when onboard water was handle with a hose, modern trucks squirt it into tub and register quantity by simply pushing a leaver. That makes it quick and easy to add water for sloshing on trip back to plant. Only time driver use hose is rinsing chute or accidently splash onto truck. Ok so on arrival crew chief gives driver a wink and nod for how many gallons and only a seasoned construction person would notice. ,

To get a feel for what 4k PSI looks like, get in position to see mix as it hits ground at a street repair or commercial building. Stay out of the way or workers might toss you in. Those jobs have a code officer looking over their shoulder and if it doent look right he pulls out a "cone" to measure slump. He will send the load back and possibly reprimand plant if it happens too often. You'll note mix sorta piles up rather than flowing out when it hits ground. You will also notice how hard they work dragging the mix.

Next time someone asks "why is my concrete cracking" or why does my concrete look like it has peeling sunburn you will have the answer.