The speed limit on Unsigned Interstate 495 West (Falmouth Spur) starts out at 60 mph. It's toll plaza is 3/4 mile ahead. EZ Pass customers should keep left. (Photo taken 8/7/17).

BEGIN shield for the Maine Turnpike on Unsigned Interstate 495 West (Falmouth Spur), as it is tolled as a part of the Maine Turnpike. (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) approaching the Falmouth Toll Plaza - 1/4 mile. The two westbound lanes will split into cash and EZ Pass lanes. (Photo taken 8/7/17).

As this sign reads, the maximum vertical clearance on the Maine Turnpike (including the Falmouth Spur) is 13'6". (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) at mile marker 3, as its two lanes split into cash and EZ Pass lanes approaching the Falmouth Toll Plaza. (Photo taken 8/7/17).

The speed limit decreases to 35 mph approaching the Falmouth Toll Plaza. (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) at the Falmouth Toll Plaza. (Photo taken 8/7/17).

View on Unsigned Interstate 495 West (Falmouth Spur) as it leaves the Falmouth Toll Plaza. (Photo taken 8/7/17).

To the west of the Falmouth Toll Plaza, the speed limit increases to 60 mph once again. (Photo taken 8/7/17).

View on Unsigned Interstate 495 West (Falmouth Spur) at mile marker 2. (Photo taken 8/7/17).

Advance signage for Interstate 95 (Maine Turnpike), which is 1 1/4 miles ahead at the western terminus of Unsigned Interstate 495 (Falmouth Spur). (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) near mile marker 1. (Photo taken 8/7/17).

As Unsigned Interstate 495 West (Falmouth Spur) nears its western terminus, these signs direct traffic to Interstate 95 South to use the left lane and traffic to Interstate 95 North to keep to the right. (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) approaching its western terminus at the junction of Interstate 95 (Maine Turnpike) - 1/2 mile. (Photo taken 8/7/17).

The speed limit decreases to 40 mph as Unsigned Interstate 495 West (Falmouth Spur) approaches the junction of Interstate 95 (Maine Turnpike). (Photo taken 8/7/17).

Unsigned Interstate 495 West (Falmouth Spur) reaches its western terminus here, as its left lane becomes the ramp to Interstate 95 South (Maine Turnpike) and its right lane becomes the ramp to Interstate 95 North (Maine Turnpike). (Photo taken 8/7/17).

View on the ramp to Interstate 95 South (Maine Turnpike) from Unsigned Interstate 495 West (Falmouth Spur). (Photo taken 8/7/17).

The ramp as it curves to the south in preparation to meet the southbound lanes of Interstate 95 (Maine Turnpike). (Photo taken 8/7/17).

Interstate 95 South (Maine Turnpike) traffic comes into view straight ahead at this point on the ramp from Unsigned Interstate 495 West (Falmouth Spur). (Photo taken 8/7/17).

The ramp reaches its end here as it merges into the southbound lanes of Interstate 95 (Maine Turnpike) in the Portland area. (Photo taken 8/7/17).