Figure 58 - Saint Lawrence Seaway Lock Delays by Cause: 1990–2001

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NOTES: “Weather-related” includes poor visibility and high wind/ice; “All other” includes vessel incidents, lock equipment malfunction, civil interference, and water level/flow.

SOURCE: U.S. Department of Transportation, Saint Lawrence Seaway Development Corporation, Annual Reports (Washington, DC: various years). Reports for years 1993–2000 available at http://www.greatlakes-seaway.com/en/aboutus/slsdc_annrept.html, as of April 2003.