Investments in Michigan’s Highway and Bridge Program improve the performance of the transportation network by addressing bridge conditions, pavement quality, capacity, and safety. These performance improvements result in savings for individuals and businesses, improved safety, and reduced environmental impact from vehicle emissions. The effects last beyond the year of investment and support ongoing economic and societal benefits as shown in the table and the accompanying chart.
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Cumulative performance impacts of FY 2025-2029 Five-Year Highway Program
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Cumulative impact
2025-2029
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Cumulative impact 2030-2034
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Cumulative impact 2035-2039
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Cumulative impact 2040-2044
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Cumulative impact total
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Employment impact (jobs)
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1,388
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1,730
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1,709
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1,682
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6,509
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Gross regional product (million $)
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$135.38
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$182.14
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$193.24
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$203.95
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$714.71
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Labor income (million $) *
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$89.89
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$120.53
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$128.14
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$135.13
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$473.69
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Output/sales (million $) **
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$292.95
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$399.19
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$425.97
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$450.86
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$1,568.97
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Societal benefits (million $) ***
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$637.30
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$698.20
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$587.70
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$494.80
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$2,418
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*Labor income is comprised of the sum of salaries, wages, proprietors’ income, and employer-paid benefits.
**Business Output/Sales is final sales, or total revenues, by industry. Depending on the industry, sales can be to any combination of other businesses, households, or the federal/state/local government, as defined by TREDIS.
***Societal Benefits include reductions in the following: vehicle operating costs, business time and reliability costs, personal time and reliability costs, safety costs, shipper/logistics costs, social/environmental costs. Societal benefits are in 2021 dollars and discounted at 3% (USDOT Guideline) to reflect the time value of money. Discounting reflects *not* inflation but the time value of money – the difference in value for benefits that come in the future vs. now.
