I-84 Exit Numbers Are Changing: What Brookfield Drivers Need to Know

The exit numbers on I-84 are changing, and Brookfield drivers will see the difference on their regular routes. The Connecticut Department of Transportation is replacing the highway's sequential exit numbers with mileage-based numbers, a switch required by federal standards, and the new signs will show how far each exit sits from the state line rather than its order along the road.

For Brookfield, the change is small but worth knowing. The westbound exit for U.S. Route 7 north and U.S. Route 202 east toward Brookfield and New Milford keeps its number: it stays Exit 7. The exit for Connecticut Route 25 toward Brookfield changes from Exit 11 to Exit 9. The same numbering applies eastbound, where the Route 25 exit also becomes Exit 9.

Mileage-based numbering is already the standard on many interstate highways. The idea is that the number tells drivers the distance: Exit 9 sits near mile 9, so a driver at Exit 7 knows the next Brookfield exit is about two miles ahead. Sequential numbers, by contrast, only say an exit is next in line, which stops being useful when exits are added or removed.

The project also replaces highway signs and sign supports along I-84 to meet current federal and state standards. Drivers should expect new signs to appear as the work moves along the highway, and directions that say "take Exit 11 for Route 25" will need updating to Exit 9.

Also on the roads this week: the Exit 21 on-ramp to I-84 eastbound in Waterbury is closed November 4 through November 5, with left-lane closures on I-84 westbound between the Union Street on-ramp and the Exit 19 off-ramp, according to a CTDOT advisory.