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Best time to cross · Michigan

Best time to cross the Blue Water Bridge border

The lowest-wait and busiest windows at Blue Water Bridge, by weekday and hour, from ten years of CBSA readings (pre-2020).

Pre-2020 pattern. Based on the CBSA’s 2010–2020 hourly readings for Canada-bound passenger vehicles at Sarnia (Blue Water Bridge). Use it to compare days and hours, not to expect a specific wait today. Check the live wait before you leave.

Lowest-wait windows

Ranked by the 90th percentile (one reading in ten was this long or longer), then the median. Hours are local time at the crossing.

  1. Wednesday 08:00: median 0 min, 90th percentile 0 min (568 readings)
  2. Wednesday 06:00: median 0 min, 90th percentile 0 min (565 readings)
  3. Friday 06:00: median 0 min, 90th percentile 0 min (563 readings)
  4. Friday 08:00: median 0 min, 90th percentile 0 min (553 readings)
  5. Monday 21:00: median 0 min, 90th percentile 0 min (552 readings)

Busiest windows

  1. Sunday 15:00: median 0 min, 90th percentile 30 min (513 readings)
  2. Friday 13:00: median 0 min, 90th percentile 30 min (519 readings)
  3. Friday 16:00: median 0 min, 90th percentile 30 min (522 readings)
  4. Sunday 19:00: median 0 min, 90th percentile 30 min (526 readings)
  5. Sunday 18:00: median 0 min, 90th percentile 30 min (530 readings)

Over April 2010 to March 2020, Sunday 00:00 had the lowest median passenger-vehicle wait (0 min, 518 readings); Sunday 00:00 the highest (0 min, 518 readings).

Weekday by hour

Blue Water Bridge: 90th-percentile passenger-vehicle wait into Canada by weekday and hour (minutes), 2010–2020. Hours are local time at the crossing. Cells need at least 5 readings.
Day01234567891011121314151617181920212223
Sun00000000005102020253030303030251000
Mon000000000001020152020151010105000
Tue000000000000000000000000
Wed0000000000000051055000000
Thu000000000051015151515151055101050
Fri00000000001020203020303020151520202010
Sat00000000010202020201515101010101010100
Blue Water Bridge: median passenger-vehicle wait into Canada by weekday and hour (minutes), 2010–2020. Hours are local time at the crossing. Cells need at least 5 readings.
Day01234567891011121314151617181920212223
Sun000000000000000000000000
Mon000000000000000000000000
Tue000000000000000000000000
Wed000000000000000000000000
Thu000000000000000000000000
Fri000000000000000000000000
Sat000000000000000000000000

Darker cells are longer waits; a dot means too few readings. See the history page for the weekday summary and the period covered.

Holidays and events

This series is not broken out by holiday, so we do not state holiday waits. Long weekends and summer Fridays are the periods when the busiest windows above typically last longer; compare against the live figure on the day.