Boston king tides and high water in 2008
In 2008, 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 12.65 ft on Friday, December 12, 2008, 0.88 ft above the tide tables, with 12 roads at risk, including Chelsea Street, William T. Morrissey Boulevard and Marginal Street.
Dec 12, 2008: 12 roads at risk12.65 ft at the Boston gauge · 0.9 ft above the tide tables · deepest: Likely · model estimate
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.
Highest water in 2008
| Date | High water · Boston | vs tide tables | Roads at risk | Deepest streets (model) |
|---|---|---|---|---|
| 12.65 ft | +0.88 ft | 12Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.61 ft | +0.69 ft | 12Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.47 ft | +0.45 ft | 10Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.47 ft | +0.59 ft | 10Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.38 ft | +0.34 ft | 8Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
Every day with roads at risk (28)
| Date | High water · Boston | vs tide tables | Roads at risk | Deepest streets (model) |
|---|---|---|---|---|
| 11.80 ft | +0.22 ft | 2Possible | Chelsea Street | |
| 12.12 ft | +0.20 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.47 ft | +0.45 ft | 10Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.47 ft | +0.59 ft | 10Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.97 ft | +0.44 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.06 ft | +1.04 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.79 ft | +1.34 ft | 2Possible | Chelsea Street | |
| 11.87 ft | +0.09 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.14 ft | +0.12 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.38 ft | +0.34 ft | 8Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.99 ft | +0.13 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.95 ft | +0.36 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.19 ft | +0.42 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.23 ft | +0.45 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.16 ft | +0.53 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.20 ft | +0.83 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.17 ft | +0.78 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.02 ft | +0.76 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.94 ft | +0.34 ft | 4Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.84 ft | +0.18 ft | 2Possible | Chelsea Street | |
| 11.82 ft | +0.66 ft | 2Possible | Chelsea Street | |
| 11.79 ft | +1.37 ft | 2Possible | Chelsea Street | |
| 12.37 ft | +0.42 ft | 8Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.61 ft | +0.69 ft | 12Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.25 ft | +0.58 ft | 5Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 12.65 ft | +0.88 ft | 12Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street | |
| 11.78 ft | −0.18 ft | 2Possible | Chelsea Street | |
| 11.80 ft | −0.11 ft | 2Possible | Chelsea Street |