<Tr> <Th> Crosses </Th> <Td> The Narrows </Td> </Tr> <Tr> <Th> Locale </Th> <Td> New York City (Staten Island--Brooklyn), New York, U.S. </Td> </Tr> <Tr> <Th> Other name (s) </Th> <Td> Verrazano Narrows Bridge Verrazano Bridge Narrows Bridge </Td> </Tr> <Tr> <Th> Maintained by </Th> <Td> MTA Bridges and Tunnels </Td> </Tr>

What is the grade of the verrazano bridge