Oklahoma State Highway 73

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State Highway 73 marker

State Highway 73
Route information
Maintained by ODOT
Length: 24.5 mi (39.4 km)
Major junctions
West end: Oklahoma State Highway 34.svg SH-34 north of Elk City
East end: Business Loop 40.svg BUS I-40 in Clinton
Highway system
Oklahoma State Highway System
SH-72 SH-74

State Highway 73 (abbreviated SH-73 or OK-73) is a 24½ mi[1] (39.4 km) state highway mostly in Custer Co., Oklahoma, although a stretch of about four-fifths of a mile (1.3 km) of its eastbound lane lies in Roger Mills Co. SH-73 has no lettered spur routes.

Route description[edit]

SH-73's eastern terminus as viewed from I-40 BUS in Clinton.

State Highway 73 begins at State Highway 34 south of Hammon. The western terminus of the highway occurs at a jog in the Roger Mills–Custer county line; north of the intersection, SH-34 runs along the north–south boundary, and at the intersection, the boundary makes a ninety-degree turn to head east–west. The first 0.8 miles (1.3 km) of SH-73 straddles the county line.[2] The county line makes another turn after this to return to a north–south orientation, and SH-73 fully enters Custer County.

In Custer County, SH-73 travels through hilly terrain and crosses both Panther Creek and Little Panther Creek, tributaries of Foss Lake. SH-73 serves the southwestern portion of the lake, and runs along the edges of Foss State Park. The highway provides connections to four campgrounds along the lakeshore.[2] Near the southeast corner of the lake, the route intersects SH-44.

SH-73 turns south along SH-44, forming a concurrency. The two routes curve southwest to cross Oak Creek. SH-44/73 travel together for 2 miles (3.2 km)[3] before SH-73 splits off, returning to a due east course. The highway parallels I-40, which runs to the south of SH-73. SH-73 then bridges the Washita River. West of Clinton, the highway crosses a set of railroad tracks at the unincorporated locale of Ralph.[2] State Highway 73 then enters Clinton, where it comes to an end at an intersection with I-40's Clinton business loop.

Junction list[edit]

County Location mi[1] km Destinations Notes
Roger MillsCuster
county line
0.0 0.0 SH-34 – Elk City, Hammon Western terminus; motorists making westbound SH-73 to northbound SH-34 movements will remain within Custer County
Custer 12.1 19.5 SH-44 north – Butler Northern terminus of SH-44 concurrency
13.9 22.4 SH-44 south – Foss Southern terminus of SH-44 concurrency
Clinton 24.5 39.4 I-40 Bus. (W. Gary Boulevard) Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Stuve, Eric. "OK-73". OKHighways.com. Retrieved June 3, 2006. [self-published source]
  2. ^ a b c Oklahoma Atlas and Gazetteer (Map). 1:200,000. DeLorme. 2006. 
  3. ^ Oklahoma Official State Map (Map) (2008 ed.). Oklahoma Department of Transportation. 

External links[edit]