As roads get constructed nationwide,its more likely than not to see roads being constructed in already inhabited areas,how it has come to the fore that contractors due to maybe to cut cost of digging or just laziness tend not to consider the 'levels' on the houses in the said area.
They do the roads higher than the houses on the left/right of the said road/drain,and illustration is the 'rich' residents along abacha road in Port Harcourt who witness perennial flooding ,other areas abound in Lagos and many other cities!
What are we the residents suppose to do when a blessing seemingly calls to a curse?
Pls help

Totally unprofessional! This would have been avoidable if there is standard in this regard!

hmmm

,,,,,,,,, seen

seen

this is the kind of results you get when you give out contracts to companies owned by people like Lie Mohamed

Wickedness.... but then, i see the point. The road contractor is much more interested in the standard of his roads, thus, he doesnt want it retaining water after every rainfall.
Flowers That Make Your Air Freshener Useless

b

Hahaha

This doesn't make the road contractor/ construction worker selfish. He has the quality of his job to uphold, and this involves ensuring the road doesn't get flooded when it rains.
To achieve this, the road has to be slightly elevated, with drainages supplied at both sides.
The normal thing is for roads to be constructed FIRST, before buildings are sited on either sides of the road. This way, the house builder checks the road elevation, and does the proper filling on his site, to elevate it above the road level. That is the normal order. But since government hardly does things in order here, there is no choice than having it in reverse.

That's the cause of the problem here. Don't blame the road construction crew. They did their job. Government and town planning authorities didn't do theirs.

Always learn to make ur foundation high enough when you are building

lol na wa oh

The whole civil design looks ugly and designed by an inexperienced university graduate.

The fault is from the settlers in any construction , the foundation of your house / intended house must be higher than the road that will pass through.
Your poeple build for then not for future learn from their past mistake when you are about to build your house.

BAD BADDO BADDEST

This is fantastically unprofessional. Where are the town planners. Regional Planners and Architects.

Why evils? Even though I have no idea of what the Op is trying to point out. Ion get it. Why evils? Even though I have no idea of what the Op is trying to point out. Ion get it.

U can't really blame the Contractor cos buildings are supposed to be higher than the existing road. But because building owners will not consult Professionals during construction but Bricklayers they end up getting a building lower that the road which leads to flooding. CONSULT PROFESSIONALS before u errect ur Structure. Thanks

The OP is definitely right, what is wrong with a gutter being built under the tarred road and channeled to the canal just like its been done in other countries?? but never they gonna stick to the old ways of doing thing just to make more profits

Coming back with my view on the matter...

Several considerations goes into road construction. The destructive power of flowing water increases exponentially as its velocity increases. Therefore, water must not be allowed to develop sufficient volume or velocity so as to cause excessive wear along ditches, below culverts, or along exposed running surfaces, cuts, or fills. With this in mind, the topography of the construction area determines to a large extent the elevation level to which the road is taken. There are instances where the road is dug up to a lower level and other instances where the road is filled up. The drainages do not exist in silos but are interconnected and this should be done in a manner that one drainage system does not empty into another but rather into into the bigger drain such as a river or a canal. The primary concern is to ensure that The road drains quickly during Normal and flash floods because the durability of the road is determined by how well the road drains. If the construction is done with existing houses as the determinant of the road level, it is likely that the road and the houses would all be flooded and the roads damaged in no time.

Dollyak:
The whole civil design looks ugly and designed by an inexperienced university graduate.

I think the OP drew it.

whirlwind7:
This doesn't make the road contractor/ construction worker selfish. He has the quality of his job to uphold, and this involves ensuring the road doesn't get flooded when it rains.
To achieve this, the road has to be slightly elevated, with drainages supplied at both sides.
The normal thing is for roads to be constructed FIRST, before buildings are sited on either sides of the road. This way, the house builder checks the road elevation, and does the proper filling on his site, to elevate it above the road level. That is the normal order. But since government hardly does things in order here, there is no choice than having it in reverse.

That's the cause of the problem here. Don't blame the road construction crew. They did their job. Government and town planning authorities didn't do theirs.

Nope I would contest that any day. The road does not need to be elevated above the standard level of the homes in the area. However the lack of correct drainage channels is what is wrong in many designs we see in Nigeria.

On roads the median and the outer curbs are essentially the drainage channels this can be designed such that the pedestrian walkway is a drainage underneath with side ports for run off to enter said channel.

The Road is usually the highest level to avoid water staying on Ur asphalt which after a long time could damage ur sub-base. So drainage is the most important thing and house owners should usually learn to spend wise sometimes

Simply break the slab/paving Infront your house and let the floodwater flow back simple, be grateful you getting good roads, come to police signboard road in Lugbe during raining season and you will appreciate even if the road is higher than Kilimanjaro

A good example is woji road at gra PH, river state. The difference between the road and houses is like 15inch (just my estimate).

whirlwind7:
This doesn't make the road contractor/ construction worker selfish. He has the quality of his job to uphold, and this involves ensuring the road doesn't get flooded when it rains.
To achieve this, the road has to be slightly elevated, with drainages supplied at both sides.
The normal thing is for roads to be constructed FIRST, before buildings are sited on either sides of the road. This way, the house builder checks the road elevation, and does the proper filling on his site, to elevate it above the road level. That is the normal order. But since government hardly does things in order here, there is no choice than having it in reverse.

That's the cause of the problem here. Don't blame the road construction crew. They did their job. Government and town planning authorities didn't do theirs.

You are very much correct

op you are totally wrong,it's unfortunate that must people refuses to consinder the road level when building houses,the first thing that determine your compound and german floor is the road level,let even assume your existing road has not been done,what comes to mind is to take 200mm above the road level and tranfer it to your compound,you will assume that's the final road level when its been done,mean while the tickness of Nigeria roads can't be more than 150mm most especially state roads,take another 200mm above the compound level and that will be the level of your Germans floor,with that you are good to go,i can bet it flood won't be able to penetrate through your compound,most houses that got flooded never consider the future,always engage a professional to do your job for you.

THIS IS SO BAD..

Dollyak:
The whole civil design looks ugly and designed by an inexperienced university graduate.

The drawings in the post are hand-drawn sketches for illustration purposes..
The job itself is so untidy. Maybe they were cutting costs, or they were done without design, or they were sublet to subcontractors who were more-or-less roadside artisans.