# Boston king tides and high water in 2006

> In 2006, NOAA's Boston tide gauge recorded water high enough for FloodRoute's model to put at least one Boston road at risk on 26 days. The highest was 13.57 ft on Tuesday, January 31, 2006, 1.95 ft above the tide tables, with 61 roads at risk, including Chelsea Street, William T. Morrissey Boulevard and Marginal Street.

**Estimates, not records of actual flooding.** Each day is NOAA's verified high water at the tide gauge, run through FloodRoute's flood model on today's roads and elevations, in dry weather. Drains, levees, tide gates, rain, road changes and elevation error all mean real conditions differed. Not for property, real-estate, insurance, lending, engineering or legal decisions.

## Every day with roads at risk (26)

| Date | High water (Boston gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 1, 2006 | 11.98 | +0.55 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 3, 2006 | 12.63 | +1.36 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 29, 2006 | 11.97 | +0.61 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 30, 2006 | 12.64 | +1.03 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 31, 2006 | 13.57 | +1.95 ft | 61 | Severe | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 1, 2006 | 12.87 | +1.49 ft | 22 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 2, 2006 | 11.95 | +1.24 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 12, 2006 | 12.30 | +2.56 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 1, 2006 | 11.97 | +0.42 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 2, 2006 | 11.88 | +0.63 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 3, 2006 | 11.95 | +0.70 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 27, 2006 | 11.78 | +0.18 ft | 2 | Possible | Chelsea Street |
| May 26, 2006 | 11.85 | +0.50 ft | 2 | Possible | Chelsea Street |
| Aug 10, 2006 | 11.86 | +0.36 ft | 2 | Possible | Chelsea Street |
| Aug 11, 2006 | 12.01 | +0.39 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 7, 2006 | 11.80 | +0.24 ft | 2 | Possible | Chelsea Street |
| Sep 9, 2006 | 11.80 | +0.19 ft | 2 | Possible | Chelsea Street |
| Sep 11, 2006 | 11.84 | +0.31 ft | 2 | Possible | Chelsea Street |
| Oct 7, 2006 | 11.90 | +0.23 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 8, 2006 | 11.78 | −0.13 ft | 2 | Possible | Chelsea Street |
| Oct 9, 2006 | 11.94 | +0.05 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 10, 2006 | 11.91 | +0.31 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 11, 2006 | 11.77 | +0.67 ft | 2 | Possible | Chelsea Street |
| Nov 6, 2006 | 11.83 | −0.07 ft | 2 | Possible | Chelsea Street |
| Nov 8, 2006 | 11.82 | +0.45 ft | 2 | Possible | Chelsea Street |
| Dec 4, 2006 | 12.32 | +0.83 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |

[All Boston history](https://floodroute.com/ma/boston/history.md) · [Live forecast](https://floodroute.com/ma/boston.md)

Data: [CSV](https://floodroute.com/data/history/ma/boston.csv) · [JSON](https://floodroute.com/data/history/ma/boston.json) · Open Database License (ODbL) 1.0 (https://opendatacommons.org/licenses/odbl/1-0/) · Credit: FloodRoute (floodroute.com), © OpenStreetMap contributors, NOAA CO-OPS · [All towns](https://floodroute.com/data.md)

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Web version: https://floodroute.com/ma/boston/history/2006 · Site index for AI agents: https://floodroute.com/llms.txt · Every page is available as Markdown: add `.md` to its URL.

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