Interstate 345 in the context of "U.S. Highway 75 (Texas)"

Downtown Dallas is the central business district (CBD) of Dallas, Texas, United States, located in the geographic center of the city. It is the second-largest business district in the state of Texas. The area termed "Downtown" has traditionally been defined as bounded by the downtown freeway loop, bounded on the east by I-345 (although known and signed as the northern terminus of I-45 and the southern terminus of US 75 (Central Expressway), on the west by I-35E, on the south by I-30, and on the north by Woodall Rodgers Freeway.

The strong organic growth of Downtown Dallas since the early 2000s and continuing into the present has now resulted in Downtown Dallas, Inc.'s expansion of the term "Downtown" to include the explosive growth occurring immediately north of the Woodall Rodgers Freeway in the Victory Park and Uptown/Turtle Creek Districts, as well as past Central Expressway to the east in the Deep Ellum and Bryan Place Districts, past Interstate 30 to the south with the Cedars District, and jumping over Interstate 35E to the west to include the Design District and Lower Oak Lawn. In total, 15 districts now form "Downtown".

Spur 366, also named the Woodall Rodgers Freeway, is a freeway that connects Beckley Avenue and Singleton Boulevard in West Dallas to Interstate 35E, Interstate 345 and U.S. Route 75 (North Central Expressway) in central Dallas, Texas. The highway, as part of the downtown freeway loop, also serves as a dividing line between downtown Dallas on the south and the Uptown and Victory Park neighborhoods on the north.

In 2012 the Santiago Calatrava designed Margaret Hunt Hill Bridge was opened, extending Woodall Rodgers west of I-35E across the Trinity River, into West Dallas. The Margaret Hunt Hill Bridge is first of three planned bridges of the Trinity River Project.

Interstate 45 (I-45) is a major Interstate Highway located entirely within the U.S. state of Texas. While most primary Interstate routes which have numbers ending in "5" are cross-country north–south routes, I-45 is comparatively short, with the entire route located within Texas. Additionally, it has the shortest length of all the primary Interstates divisible by 5, and is the only Interstate Highway of such. It connects the cities of Dallas and Houston, continuing southeast from Houston to Galveston over the Galveston Causeway to the Gulf of Mexico.

I-45 replaced U.S. Highway 75 (US 75) over its entire length, although portions of US 75 remained parallel to I-45 until its elimination south of Downtown Dallas in 1987. At the south end of I-45, State Highway 87 (SH 87, formerly part of US 75) continues into downtown Galveston. The north end is at I-30 in Downtown Dallas, where US 75 used the Good-Latimer Expressway. A short continuation, known by traffic reporters as the I-45 overhead, signed as part of US 75 and also part of unsigned I-345, continues north to the merge with the current end of US 75. Traffic can use Spur 366 (better known locally as the Woodall Rodgers Freeway) to connect to I-35E at the north end of I-345.

Deep Ellum is a neighborhood of Dallas, Texas, home to a diverse array of arts venues, restaurants, bars, entertainment venues, businesses, and urban residential units near downtown in East Dallas. Its name is based on a corruption of the area's principal thoroughfare, Elm Street. Older alternative uses include Deep Elm and Deep Elem.

The neighborhood lies directly east of the elevated I-45/US 75 (unsigned I-345) freeway and extends to Exposition Avenue, connected to downtown by, from north to south, Pacific, Elm, Main, Commerce, and Canton streets. The neighborhood is north of Exposition Park and south of Bryan Place.