Chicxulub was a much larger object, but it was not travelling at 60,000 mph.
Chicxulub was at least 15,000 times more mass traveling at 20 km sec, which resulted in a crater 220 miles in diameter. Petroleum exploration wells and seismic work determined the total extent of that crater.
An elongated object will actually break up in atmosphere before striking the Earths surface. For creating the most devastation, compact the objects dimensions to a spherical form. Then choose an iron asteroid with an ocean impact, in a depth of perhaps 1000 meters. In exaggeration, choose the longest dimension of the object (400 meters) as the spherical diameter. Go with 27 km sec impact speed. Run the simulation, then click on the green box in each damage category for results.
https://www.purdue.edu/impactearth/