# Boston king tides and high water in 2007

> In 2007, NOAA's Boston tide gauge recorded water high enough for FloodRoute's model to put at least one Boston road at risk on 28 days. The highest was 13.80 ft on Tuesday, April 17, 2007, 1.90 ft above the tide tables, with 70 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 (28)

| Date | High water (Boston gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Feb 18, 2007 | 11.85 | +0.58 ft | 2 | Possible | Chelsea Street |
| Mar 17, 2007 | 11.81 | +1.17 ft | 2 | Possible | Chelsea Street |
| Apr 15, 2007 | 12.07 | +1.21 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 16, 2007 | 13.16 | +2.29 ft | 32 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 17, 2007 | 13.80 | +1.90 ft | 70 | Severe | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 18, 2007 | 12.70 | +1.76 ft | 14 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 19, 2007 | 13.16 | +1.15 ft | 30 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 20, 2007 | 12.56 | +0.72 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 21, 2007 | 11.81 | +0.38 ft | 2 | Possible | Chelsea Street |
| May 16, 2007 | 12.52 | +0.53 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 18, 2007 | 12.07 | +0.12 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 19, 2007 | 12.16 | +0.46 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 20, 2007 | 11.91 | +0.64 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 12, 2007 | 12.11 | +0.78 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 13, 2007 | 12.06 | +0.49 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 14, 2007 | 12.23 | +0.58 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 16, 2007 | 12.23 | +0.66 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 17, 2007 | 11.98 | +0.64 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 28, 2007 | 11.92 | +0.17 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Oct 27, 2007 | 12.24 | +0.09 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 24, 2007 | 11.85 | −0.15 ft | 2 | Possible | Chelsea Street |
| Nov 25, 2007 | 11.87 | −0.23 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 26, 2007 | 12.18 | +0.23 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 16, 2007 | 11.94 | +2.46 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 23, 2007 | 11.80 | +0.20 ft | 2 | Possible | Chelsea Street |
| Dec 24, 2007 | 11.82 | +0.14 ft | 2 | Possible | Chelsea Street |
| Dec 26, 2007 | 11.83 | +0.56 ft | 2 | Possible | Chelsea Street |
| Dec 27, 2007 | 12.02 | +1.20 ft | 4 | Possible | 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/2007 · 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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