wooden retention wall

[Gp G.]

Hi all,
I have a ditch which is 150 feet wide, 100 feet long and 2 feet deep in the back with a city catch basin in the middle. I have a wooden retention wall as attached which is about 30 year old I think from the time when this building was constructed, I have made slope down on right hand side corner last year for landscapers, tenants to go into ditch to cut the grass rather than leave it become mini forest with poison ivy plants as well there. My question is does this wooden retention wall constructed for the city catch basin rain drainage water not to enter into the property or does the retention wall support the foundation of a building which is around 20 feet away. Is it urgent I have to replace that retention wall which may cost thousands of dollars or can wait until that retention wall collapses completely? Is a concrete retention wall better, cheaper than a wooden one? Any other better cheaper options available? What type of contractors do these types of jobs? Please advise
Thanks,

[Richard Schubert]

I am not seeing a retention wall, I only see a wooden fence. Maybe I am missing something but if you are referencing the fence, that will not stop water flow nor will it be part of a foundation support. A landscape contractor that specializes in retaining walls can replace a resting wall if you have one that I don’t see in the photo. A larger company will advertise they build them. Wood retaining wall is much cheaper than a concrete or stone wall. I used to do that type of work and built hundreds of walls. Let me know if you need anything else.