The following highways are numbered 690:
| Preceded by 689 | Lists of highways 690 | Succeeded by 691 |
U.S. Route 51 (US 51), mostly overlapped by the unsigned State Route 3 (SR 3), is a north–south state highway in the U.S. state of Tennessee, that is 135.9 miles (218.71 km) long, completely within West Tennessee. It begins in Shelby County and ends in Obion County. The SR 3 designation is seen largely on mileposts.
Virginia State Route 234 is a primary state highway in the U.S. state of Virginia. It runs from U.S. Route 1 near Dumfries via Independent Hill as Dumfries Road, bypasses Manassas as Prince William Parkway, and has a brief concurrency with Interstate 66 for 2.27 miles (3.65 km) between exits 44 and 47 before continuing northwest via Catharpin to U.S. Route 15 near Woolsey as Sudley Road.
State Route 690 is a north–south state highway in southeastern Ohio, a U.S. state. The southern terminus of SR 690 is at the concurrency of US 50 and SR 32 about 6+1⁄2 miles (10.5 km) east of Athens in the community of Canaanville. Its northern terminus is at SR 550 approximately two miles (3.2 km) west of Amesville.
State Route 184 is a 12.92 miles (20.79 km) long highway in West Tennessee, running between the cities of Troy and Union City.
Interstate 69 (I-69) is a proposed US Interstate Highway that will pass through the western part of the US state of Tennessee, serving the cities of Union City, Dyersburg, and Memphis. Currently, a 21-mile (34 km) section of already-existing freeway in Memphis has been approved for the I-69 designation while another segment near Union City opened on February 21, 2024, under the temporary designation of Tennessee State Route 690. However, state officials have stated that they will not commit to finishing the interstate in their state until they receive more federal funding.
State Route 6 (SR 6) is a state highway that is unsigned. It travels through the central part of the U.S. state of Tennessee from Lawrence County to Sumner County. The highway is related to the following U.S. Highways:
The Gateway Expressway is a controlled-access toll road under construction in Pinellas County, Florida that is expected to be completed in early-2024 at a cost of $598 million. The project consists of two branches: an elevated highway to be designated State Road 690 above 118th Avenue North between Interstate 275 (I-275) and U.S. Highway 19 and a raised highway in the median of SR 686 from 118th Avenue North to the Bayside Bridge. Construction was approved in February 2014 and began in November 2017.
State Route 106 is a north–south state highway in Middle Tennessee. The highway is a secret, or hidden, designation for the following highways:
