
The Robert Moses Causeway (reference route 908J), originally known as the Captree Causeway, connects the Southern State Parkway with Fire Island and Robert Moses State Park. The original causeways were built as a two lane undivided highway; the northern causeway was twinned in 1967. The southern causeway to Fire Island was planned to be twinned as well, but this was never done.
Mile | Northbound | Southbound | Notes |
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Suffolk County | |||
Speed Limit 25 | |||
0.0 | ![]() |
Robert Moses State Park | Traffic circle |
Speed Limit 35 | Speed Limit 25 | ||
1.1 | ![]() Captree State Park |
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1.1 | ![]() Jones Beach |
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Speed Limit 35 | |||
Drawbridge | |||
1.5 | Captree Island | ||
Speed Limit 45 | |||
Speed Limit 55 Minimum 40 |
Speed Limit 45 | ||
Speed Limit 55 | |||
4.6 | Left Turnaround |
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5.3 | Exit RM2E![]() Bay Shore |
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5.3 | Exit RM2W![]() Babylon |
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7.4 | Exit RM1E![]() Montauk |
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7.4 | Exit RM1W![]() New York All trucks buses trailers exit |
Exit RM1W![]() New York |
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7.8 | ![]() East Islip |
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8.1 | ![]() New York |
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Speed Limit 55 | |||
Suffolk County |