# Boston king tides and high water in 2010

> In 2010, NOAA's Boston tide gauge recorded water high enough for FloodRoute's model to put at least one Boston road at risk on 71 days. The highest was 13.70 ft on Monday, December 27, 2010, 3.59 ft above the tide tables, with 66 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 (71)

| Date | High water (Boston gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 1, 2010 | 12.93 | +1.25 ft | 22 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 2, 2010 | 13.53 | +1.76 ft | 52 | Severe | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 3, 2010 | 13.15 | +1.50 ft | 30 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 4, 2010 | 12.37 | +1.08 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 18, 2010 | 11.96 | +2.30 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 31, 2010 | 12.43 | +0.65 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 1, 2010 | 11.76 | +0.14 ft | 2 | Possible | Chelsea Street |
| Feb 25, 2010 | 12.39 | +3.37 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 26, 2010 | 12.69 | +1.98 ft | 14 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 27, 2010 | 12.43 | +1.26 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 28, 2010 | 12.54 | +1.06 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 1, 2010 | 13.06 | +1.52 ft | 27 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 2, 2010 | 12.15 | +0.79 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 3, 2010 | 12.53 | +1.57 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 4, 2010 | 13.08 | +1.85 ft | 30 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 5, 2010 | 12.78 | +1.95 ft | 16 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 14, 2010 | 11.86 | +2.53 ft | 2 | Possible | Chelsea Street |
| Mar 28, 2010 | 11.77 | +0.90 ft | 2 | Possible | Chelsea Street |
| Mar 29, 2010 | 12.38 | +1.06 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 30, 2010 | 12.41 | +1.34 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Mar 31, 2010 | 13.17 | +1.63 ft | 32 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 1, 2010 | 12.50 | +1.01 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 2, 2010 | 11.96 | +0.74 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 26, 2010 | 12.40 | +1.28 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 27, 2010 | 12.57 | +1.19 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 28, 2010 | 12.32 | +0.87 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 30, 2010 | 11.86 | +0.55 ft | 2 | Possible | Chelsea Street |
| May 1, 2010 | 11.79 | +0.78 ft | 2 | Possible | Chelsea Street |
| May 26, 2010 | 12.26 | +1.14 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 27, 2010 | 11.81 | +0.72 ft | 2 | Possible | Chelsea Street |
| Jun 14, 2010 | 11.93 | +0.57 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 15, 2010 | 11.83 | +0.43 ft | 2 | Possible | Chelsea Street |
| Jul 11, 2010 | 11.94 | +0.48 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 13, 2010 | 12.09 | +0.42 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 14, 2010 | 12.12 | +0.43 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 15, 2010 | 11.86 | +0.35 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 9, 2010 | 11.95 | +0.36 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 11, 2010 | 12.28 | +0.50 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 12, 2010 | 12.17 | +0.41 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 13, 2010 | 11.78 | +0.26 ft | 2 | Possible | Chelsea Street |
| Sep 7, 2010 | 11.86 | +0.36 ft | 2 | Possible | Chelsea Street |
| Sep 8, 2010 | 12.31 | +0.67 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 9, 2010 | 12.41 | +0.83 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 10, 2010 | 12.37 | +0.59 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 11, 2010 | 12.11 | +0.38 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 12, 2010 | 11.91 | +0.46 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 6, 2010 | 12.14 | +1.01 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 7, 2010 | 12.31 | +0.73 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 8, 2010 | 11.92 | +0.04 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 9, 2010 | 12.46 | +0.53 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 10, 2010 | 11.77 | +0.05 ft | 2 | Possible | Chelsea Street |
| Oct 11, 2010 | 11.90 | +0.58 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 4, 2010 | 11.84 | +0.60 ft | 2 | Possible | Chelsea Street |
| Nov 5, 2010 | 12.91 | +1.30 ft | 22 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 6, 2010 | 11.98 | +0.21 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 7, 2010 | 11.99 | +0.29 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 8, 2010 | 12.78 | +1.35 ft | 16 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 9, 2010 | 12.04 | +1.02 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 10, 2010 | 12.18 | +1.66 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 3, 2010 | 11.79 | +0.78 ft | 2 | Possible | Chelsea Street |
| Dec 4, 2010 | 12.29 | +1.07 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 5, 2010 | 12.57 | +1.28 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 6, 2010 | 11.76 | +0.56 ft | 2 | Possible | Chelsea Street |
| Dec 7, 2010 | 11.94 | +0.96 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 20, 2010 | 11.85 | +1.48 ft | 2 | Possible | Chelsea Street |
| Dec 21, 2010 | 12.17 | +1.48 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 22, 2010 | 12.26 | +1.35 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 23, 2010 | 12.46 | +1.44 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 24, 2010 | 11.77 | +0.80 ft | 2 | Possible | Chelsea Street |
| Dec 26, 2010 | 11.82 | +1.41 ft | 2 | Possible | Chelsea Street |
| Dec 27, 2010 | 13.70 | +3.59 ft | 66 | Severe | 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/2010 · 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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