Memphis is an easier drive than its size suggests, right up until you need to cross water. Here is what the data says, when I-240 and the bridges actually peak, and how to find the best time to leave for your route.
Two bridges, and what happens when one closes
Memphis sits on the Mississippi with only two interstate crossings: the Hernando de Soto Bridge carrying I-40, and the Memphis & Arkansas Bridge carrying I-55. The I-40 span carried 43,882 vehicles a day as of 2025.
In May 2021 an inspector found a partially fractured tie girder on the I-40 bridge — two of four plates fully fractured — and the structural engineer judged it at risk of collapse and called 911 to shut it immediately. It closed on 11 May and did not fully reopen to vehicles until 2 August, roughly three months later. During that period traffic shifted to the I-55 bridge, with longer detours north to the I-155 Caruthersville Bridge and south to the US-49 Helena Bridge.
That episode is the clearest illustration of how Memphis traffic actually works. On a normal day the network has slack. With one crossing gone, there is no third option within the metro, and the delay is not proportional — it is a step change.
You do not need a bridge emergency for the principle to apply. Any incident, lane closure or maintenance window on either crossing pushes its entire volume onto the other one, and a river-crossing commute is therefore exposed in a way an inland one is not.
When is Memphis traffic worst?
Mornings run roughly 7:00–9:00 a.m. and evenings roughly 4:00–6:00 p.m. By corridor:
- The I-40 Hernando de Soto Bridge — the busier of the two crossings and the one whose problems reshape everything else.
- The I-55 Memphis & Arkansas Bridge — the alternate, and the reason the 2021 closure was survivable rather than catastrophic. Its own peaks are sharper than its volume suggests because it absorbs overflow.
- I-240, the inner loop — the main commuter route, and where an incident propagates furthest within the city. The eastern arc is heaviest.
- I-40 east toward Arlington and Cordova — the suburban commute feeding the core.
- Poplar Avenue and Germantown Parkway — the arterial commutes that fill when the interstates back up, which means they are rarely the escape they look like.
- I-269, the outer loop — genuine relief for through-trips, less useful for commutes into the core.
Prefer a leave-by time to a set of windows? Put your arrival time into the departure time calculator and it will work out when to go.
The simple move: shift off the peak
Leaving just before or just after the busiest window clears a large share of the delay. Memphis peaks are narrower than in the largest metros, so the shift needed is usually smaller — fifteen minutes often does what thirty would in Chicago or Atlanta.
The exception is a river crossing. There, timing helps less than knowing the state of the bridge before you commit, because the difference between a clear crossing and a constrained one is not a matter of degree.
Three Memphis-specific things that move the peak
- A crossing has no substitute. Two interstate bridges for a metro this size means redundancy is thin by design. If your commute crosses the Mississippi, checking conditions before you leave is worth more than any departure-time rule, because the failure mode is binary rather than gradual.
- Freight volume is disproportionate. Memphis is one of the country's major logistics centres, and the truck traffic that comes with it concentrates on the same interstates and the same crossings the local commute uses. That is part of why a single incident spreads so far.
- Arterials fill fast. Poplar, Germantown Parkway and the other major surface routes take the overflow the moment the loop slows, so the obvious alternative is usually already gone by the time you would think to use it.
Why your best time is route-specific
The I-40 bridge does not peak like the eastern arc of I-240, an inbound trip is not an outbound one, and a river crossing is a different category of risk from an inland commute. Citywide advice smooths over exactly the differences that decide your drive. Nationally, the worst day of the week varies by city too.
Driving the I-40 corridor east? See the best time to leave Nashville for the other end of that run.
Find the best time to leave for your Memphis route
Google Maps and Waze show live traffic and turn-by-turn once you are already on the road. BoardSpy is the leave-time app: it checks your saved Memphis route before you leave, recommends when to go, sends traffic and weather alerts, and tracks delay and on-time stats including your best and worst days. When you set off, it opens your map app for turn-by-turn. For how routing apps differ from departure-timing tools, see best app to avoid traffic and Google Maps commute alternatives.
Just passing through?
This page is for commuters driving in and around Memphis. If you are crossing the metro on the interstate rather than commuting within it, the timing question is different — see the best time to drive through Memphis.
Frequently asked questions
What is the best time to leave to avoid traffic in Memphis?
Generally before 7:00 a.m. or after 9:00 a.m. in the morning, and outside 4:00–6:00 p.m. in the evening. Memphis peaks are narrower than in the largest metros, so a 15-minute shift often clears what would take 30 elsewhere. If your route crosses the Mississippi, checking bridge conditions matters more than the exact minute you leave.
When is Memphis rush hour?
Roughly 7:00–9:00 a.m. and 4:00–6:00 p.m. on weekdays, with the eastern arc of I-240 and the I-40 bridge approach the heaviest stretches.
How many bridges cross the Mississippi at Memphis?
Two interstate bridges: the Hernando de Soto Bridge carrying I-40, and the Memphis & Arkansas Bridge carrying I-55. The next crossings are well outside the metro — the I-155 Caruthersville Bridge to the north and the US-49 Helena Bridge to the south.
What is the worst road in Memphis?
The I-40 Hernando de Soto Bridge is the most consequential rather than the slowest — it carries 43,882 vehicles a day with only one in-metro alternative. For day-to-day commuting delay, the eastern arc of I-240 is the most consistent problem.
Why did the I-40 bridge close in 2021?
An inspector discovered a partially fractured tie girder on the north truss, with two of four plates completely fractured. The structural engineer judged the bridge at risk of collapse and ordered an immediate closure on 11 May 2021. It did not fully reopen to vehicles until 2 August, and during those months traffic diverted to the I-55 bridge and to distant crossings north and south.
How do I find the best time to leave for my Memphis commute?
Use a leave-time commute app that reads your actual route rather than only a live map. BoardSpy recommends when to leave for your Memphis route, sends pre-departure traffic and weather alerts, and tracks on-time performance and your best and worst traffic days. Download it here.