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FHWA Home / Safety / Geometric Design / Publications / Mitigation Strategies For Design Exceptions

Discussion

The reconstruction of SR 99 within several communities in the Seattle area illustrates the importance of monitoring the performance of design exception locations after construction.  For these projects, the Washington DOT established a formal in-service evaluation agreement with the cities involved.  Several characteristics of Washington’s in-service evaluation make it a good model:

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Page last modified on April 1, 2019
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