page_title: List of state highway loops in Texas (300–399)
section_title: Loop 306
hierarchical_section_title: List of state highway loops in Texas (300–399) / Loop 306
caption_attribution_description: State Loop 306 before the U.S. 87/277 stack interchange.
context_page_description: State highway loops in Texas are owned and maintained by the Texas Department of Transportation.
context_section_description: Loop 306 is a state loop that encircles much of San Angelo. Loop 306 begins on the north side of San Angelo, at the US 67/277 interchange, and continues south on the eastern edge of town. The highway multiplexes with US 87 while being routed west. The multiplex ends at the US 87/277/Loop 306 interchange, with Loop 306 routed northwest. Loop 306 ends at the Business US 67 (Sherwood Way) overpass, however the freeway continues and is signed as US 67, Houston Harte Expressway; named after the San Angelo-native publishing magnate. The route is often referred to locally as "the Loop" or "Loop 306", despite the terminus of Loop 306 at Sherwood Way. TxDOT upgraded portions of Loop 306 to expand it from a two-lane road to a four-lane divided highway. From the US 67/277 interchange, Loop 306 continues as a four-lane divided highway all the way to US 87. The upgrades included adding two overpasses and improvements to a divided highway.
  Loop 306 was designated on October 24, 1956. On July 30, 1976, the section from US 67 west and southwest to US 67 was transferred to rerouted US 67.
  Junction list
  The entire route is in San Angelo, Tom Green County.
caption: State Loop 306 before US 277/87 interchange
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