Welcome to the SDDOT I-90 Environmental Assessment (Exit 40 to Exit 51) Project Website

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Archive

South Frontage Road Alternatives (Archive) - click to view enlargements down arrow

South Frontage Road Alternative 1
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South Frontage Road Alternative 2
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South Frontage Road Alternative 3
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South Frontage Road Alternative 1 - click to view enlargement South Frontage Road Alternative 2 - click to view enlargement South Frontage Road Alternative 3 - click to view enlargement

South Service Road Former Preferred Alternative (Archive) - click to view enlargement down arrow

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South Service Road Former Preferred Alternative - click to view enlargement

North Frontage Road Alternatives (Archive) - click to view enlargements down arrow

North Frontage Road Alternative 1
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North Frontage Road Alternative 2
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North Frontage Road Alternative 3
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North Frontage Road Alternative 4
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North Frontage Road Alternative 1 - click to view enlargement North Frontage Road Alternative 2 - click to view enlargement North Frontage Road Alternative 3 - click to view enlargement North Frontage Road Alternative 4 - click to view enlargement

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