Damage done to Ambrose Street by heavy vehicles. It may have been the contractor. The contractor may have had some of his large trucks using Ambrose Street but I do not think so. I believe the culprits are Thunder Bay Transit buses that have caused this damage. That and shoddy workmanship during the previous paving project on this section of Ambrose Street. Accepting inferior paving products costs the City of Thunder Bay millions in early maintenance. This pavement delamination can be caused by several factors.
One that is common in this city is putting fresh asphalt over asphalt that is cold. The upper layer will not form a strong bond with the lower layer unless a coat of tacky bonding agent is applied to the bottom layer of asphalt prior to the placing of the top layer. Many streets in this city have one layer of asphalt placed one day or one year and the next placed the next day or the next year. In the case of Dawson Street, it may be two years later. No tack coat is ever applied in the City of Thunder Bay that I have ever seen. But who cares right? Its only money. The Engineering Department is aware of this ( I assume) and chooses not to apply a tack coat.
Buses are being rerouted around the officially marked detour (blue line). However, instead of continuing along Court Street and turning left onto Pearl Street, some if not all rerouted buses are turning left onto Ambrose Street. Ambrose Street between Court and Algoma is not much more than a back lane. One lane wide. Hardly a street worthy of bus traffic. Buses are very large and very heavy vehicles.
Why were buses using Ambrose Street instead of Pear Street? I believe the transit department wanted to keep the bus stop on Algoma between Ambrose and Pearl Streets open. Had Thunder Bay Transit moved that stop (temporarily) north of Pearl Street, the damage will have been averted. As it sits now, there are several thousand dollars worth of repairs required that will now come out of the contingency budget for the work being done on Algoma Street.
It would have been much cheaper just to move the bus stop one block but I guess that is not how its done in this city.
I could be wrong. The cause may not be the buses at all. I did see a bus go up Ambrose however and buses tend to be creatures of habit. The Memorial Avenue, Crosstown and John buses would provide a large amount of traffic on that street for an extended period of time.