Spur 303 begins at an interchange at
I-820 in
Fort Worth and heads east as Rosedale Street. It runs by
SH 180 as it passes by
Lake Arlington. It becomes Pioneer Parkway due north of Lake Arlington and remains so as it passes between
Pantego and
Dalworthington Gardens. The highway then intersects FM 157 (Cooper Street) and travels through the south side of
Arlington, passing the
Ben Thanh Plaza and Arlington ISD Dan Dipert Career and Technical Center. Spur 303 then interchanges with
SH 360 at a
parclo interchange and then comes across the
President George Bush Turnpike. SH 161 runs on both sides of the toll road and gives Spur 303 limited access to the turnpike. The route then intersects FM 1382 before it approaches
Mountain Creek Lake and crosses over it by the
Mountain Creek Lake Bridge (maintained by the
North Texas Tollway Authority [NTTA]). It becomes Kiest Boulevard as it intersects Mountain Creek Parkway and it passes by
Dallas Baptist University before interchanging with
Spur 408. The route then reaches its eastern terminus at
Loop 12 outside
Dallas. ==History==