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Bridge Rehabilitation Program

This program targets rehabilitation of bridge and overpassethroughout the City of Lethbridge transportation network and urban parks systems. Locations are targeted using the Municipal Bridge Management System. This system relies on a database of condition assessments to determine bridge structures that require further evaluation by technical professions. There are a total of 53 structures with a capital asset value of over $120 million. The average age of all bridge structures is 25 years and the average life span is 50 years.

• Bridge #16: Scenic Dr over 5th Ave N; concrete deck
rehabilitation ($750,000)
• Bridge #21: Stafford Dr over CP Rail; crack repair and deck
joint repair ($200,000)

• Bridge #1: East bound Whoop Up Dr over Oldman River;
girder coating rehabilitation ($2,100,000)

• Bridge #27: West bound Whoop Up Dr over Oldman River;
girder coating rehabilitation ($2,400,000)

Council's direction is to protect the investment the City has made in our assets. In order to protect a very large capital investment and provide safe conditions to City residents, it is necessary to maintain the bridges in our Transportation Network. Major/minor rehabilitation work has been identified, analyzed and prioritized based on condition/severity index using the Bridge Management System Software. Work programs generated from the software consist of a 10 year work plan for rehabilitation activities. This activity will ensure that rehabilitation work is done at the appropriate time to minimize life cycle costs and ensure the structural integrity of the structures. Currently the analysis done by the software and inspections indicate that the bridges and structures are in good condition and that identified investments as indicated in this project should protect our investment. Rehabilitation needs for 2011 to 2020 are based on 2008 and 2009 condition assessments. Rehabilitation work performed at the right time reduces costly rehabilitation or replacement costs on a very large capital investment. It also significantly reduces the risk of catastrophic structural failures.