I don't know ehere you live but in here when a project is being built it's fairly normal to have a big sign with details like,

* what is being done

* starting date and expected end date

* maybe a map to show are being worked on

* company doing the work

* How much it costs

* A series of logos with every entity that funded the work, with a decreasinz size depending how much they funded)

I'd not really call that propaganda.