The reasoning is that an increase in traffic on I-69/US 51 would funnel that traffic over the I-55 Mississippi River bridge and into the substandard cloverleaf in Memphis.
aren't they fixing that stupid cloverleaf?
Apparently the plans to throughput I-55 through the cloverleaf location are still in play, but funding keeps getting delayed -- not surprising, as the project primarily benefits I-55 drivers ostensibly using TN as a "land bridge" between MS and AR. That being said, the I-55 bridge -- as opposed to I-40 to the north -- remains the crossing of choice when attempting to access certain regional features from the west, particularly if one's immediate destination is the Memphis airport, the FedEx hub, Graceland, the N. MS suburbs and/or Tunica, and even I-22. In the long run,
both crossings are regionally vital; replacement of the cloverleaf is long overdue!
Well just take the I-40 bridge over the Mississippi then. You can get right back to I-55 easily via I-240.
As the primary access to downtown Memphis from both west (40) and south (240), it's invariably congested much of the time and is not, except for the sporadic detour, a viable alternative to I-55 -- it certainly wouldn't readily handle the combined traffic of both crossings anywhere near peak hours without major delays.