Texas State Highway 312

State Highway 312 (SH 312) is a proposed state highway from US Highway 90 Alternate (Alt. US 90) just west of SH 6 south to Interstate 69/U.S. Highway 59 (I-69/US 59). The highway was originally designated in 1986 as SH 362, and was renumbered as SH 312 in 1987. As of 2020^[update], the highway has yet to be built.

State Highway 312
Route information
Maintained by TxDOT
Existed	1987–present
Major junctions
South end	I-69 / US 59
North end	US 90 Alt. in Sugar Land
Location
Country	United States
State	Texas
Highway system
Highways in Texas Interstate US State Former Toll Loops Spurs FM/RM Park Rec
← SH 311 → SH 313

The original SH 312 was designated on March 21, 1939, from Karnes City southwest to the Atascosa–Karnes county line.^[1] On September 26, 1939, this became part of SH 80.

References

1. "Minutes" (PDF). Texas Department of Transportation. March 21, 1939. Archived (PDF) from the original on October 22, 2017. Retrieved April 28, 2023.