State Route 43 (SR-43) is a state highway in the U.S. state of Utah. Running for 10.6 miles (17.1 km), the highway is a Utah connection between Wyoming Highways 414 and 530 (where the routes both end at their southern terminus). While running east–west from border-to-border, the route passes through Manila. The road became a state highway in 1918, and was assigned a number in 1927. In 1960, due to the construction of the Flaming Gorge Reservoir, a portion was realigned.