State Highway 199 is a northwest-to-southeast state route that runs from U.S. Route 380/State Highway 59 in Jacksboro to Interstate 30/U.S. Route 377 in Fort Worth.
SH 199 begins at an intersection with U.S. Route 380/State Highway 59 in Jacksboro near the Jack County courthouse, with the road continuing north as U.S. Route 281/State Highway 114. The highway begins with a concurrency with US 281/US 380/SH 114, with US 380/SH 114 leaving just south of the Jacksboro city limits. SH 199 continues its overlap with US 281 until about 7 miles south of Jacksboro, with US 281 traveling south to Mineral Wells. The highway travels southeast to the town of Joplin, where it intersects with Farm to Market Road 1156. In Springtown, SH 199 goes from a two lane undivided highway to a four lane divided highway. Most of the highway from Azle to near Lakeside is a freeway. SH 199 travels through the town of Lake Worth as a divided highway with a wide median until reaching Interstate 820 at a modified cloverleaf interchange. Just inside Interstate 820, SH 199 enters the city limits of Fort Worth and intersects State Highway 183 just northeast of River Oaks. SH 199 crosses over both the West and Clear Forks of the Trinity River and enters Downtown Fort Worth. At 5th Street, the highway turns south before ending at an interchange with Interstate 30/U.S. Route 377.
- The part of the highway located within the city limits of Fort Worth is known as "Jacksboro Highway", as the route's other end is in Jacksboro.
- In Lake Worth, the highway is known as "Lake Worth Boulevard".
- In Azle, the highway is named "Southwest Parkway Street".
- In Downtown Fort Worth, the highway is known as "Henderson Street."