NYC Minimum Curve Radius

by R36 #9346 on Wed Oct 5 16:20:35 2005

Here’s that table I mentioned earlier. Please note that I have only considered IRT and BMT lines in this table, since my data for the IND lines does not show curve radii.

Curve Radius (Ft)
City Hall Loop 147.25
East of Crescent St 147.5 CL
D4 at portal north of 36 St/4 Av 165
South Ferry Station (inner) 178
West Farms Junction (North of E. Tremont) 180
North of Park Place 190
149 St Loop 190
South Ferry Station (outer) 191
North of Fulton St/William St 195
West of Marcy Av 197
South of Queensboro Plaza 200
North and South of Grand Central (4)(5)(6) 200
West of Cypress Hills 200 CL
North of Fulton St/Broadway 200
Malbone St (O1-264) 200
South of 45 Rd Station 215
Southbound N north of Queensboro Plaza 218
North of Simpson Street 240
Malbone St (O1-261) 240
South of Wall/William 250
South of Graham Avenue 254 CL
South of Clark Street 272
Compass-North of Wyckoff Av 275 CL
Northbound 1 north of Times Sq 276
North of Saratoga Av 286
West of Bowery 295 CL
South of E. 180 St 300
North of 9th Avenue/West End 300 CL
North of Brighton Beach 300 CL

CL indicates that a non-track centerline of survey was used to determine this radius. This means that the inside track of curves so marked has a radius smaller than that shown.

Last revised 01/21/2011

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