Ken Logtenberg, P.Eng, BMRoss and Associates presented the 2021 Township of Huron-Kinloss Bridge Needs Assessment Study. Mr. Logtenberg explained that the scope of the assessment included assembling maps of structure locations and reviewing information from previous bridge inspection reports. As part of the study, they reviewed 99 structures, 54 culverts, and 45 bridges, then visually inspected all the structures, assembled notes on OSIM forms as per the guidelines, analyzed the data then developed a list of general observations, prioritize the lists of needs, assign timelines and calculate probable costs to complete repairs and prepared a report to present the results.
He explained they used the simplified priority scoring system to help prioritize the needs and develop a risk score and a level of service score that could be used for asset management and with other asset types. He noted the theoretical score should only be used as a guide, other
factors including preventative maintenance, cost savings strategies, other infrastructure needs, and overwhelming safety needs should be considered when prioritizing.
Mr. Logtenberg went through a selection of bridges that they recommended replacement in the study and noted that some bridges could be replaced with a culvert depending on the result of a hydrology study.
He explained the Bridge Condition Index Ratings and a comparison of age distribution and bridge condition index ratings. He noted that to predict a long-term budget they reviewed the condition of each structure and calculated a probable cost for the next major repair or replacement in 2021 dollars. He noted that the estimated replacement cost of all the structures is $54.5 million in 2021 dollars and average annual costs of $700,000 or about 1.3% of the replacement costs.
Council noted the importance of funding bridges and having enough money in reserves. A comment was made regarding the water overflow at the Ludgard Bridge in Lucknow and if that was considered in the inspections. Mr. Logtenberg noted this information is helpful for rehabilitation but was not considered as part of the OSIM report.
A question was raised if the Township was to perform the maintenance work themselves, would it prolong the life of the bridges. Mr. Logtenberg noted that it is anticipated in the current report bridge maintenance should extend the life of the bridge.
The Director of Public Works explained that the information will be included in the 10-year capital plan for bridge maintenance, he noted that he felt the Township is in good shape for the scheduled maintenance.