Texas State Highway 118

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State Highway 118 marker

State Highway 118
Route information
Maintained by TxDOT
Length155.272 mi[1] (249.886 km)
Existedby 1928–present
Major junctions
South endUS-NationalParkService-Logo.svg Big Bend National Park
 US 67.svgUS 90.svg US 67/US 90
Texas 223.svg SH 223
Texas 17.svg SH 17
Texas 166.svg SH 166
North endI-10.svgTexas RM 2424.svg I-10/RM 2424 at Kent
CountiesBrewster, Jeff Davis, Culberson
Highway system
SH 117SH 119

State Highway 118, or SH 118, is a 155.3-mile (249.9 km) state highway in the U.S. state of Texas that runs from Big Bend National Park north to Kent and passes through the towns of Study Butte, Alpine, and Fort Davis. SH 118 is maintained by the Texas Department of Transportation (TxDOT). The road lies entirely within the Trans-Pecos region of Texas. SH 118 is a two-lane road along its length except for a section in Alpine where the route follows the path of U.S. Route 67 and U.S. Route 90. All of the route except for the 2.8-mile (4.5 km) section between Big Bend National Park and Farm to Market Road 170 is included in the Texas Historical Commission's Texas Mountain Trail.

The road passes through or along several state and federal parks and other wildlife preservation areas. These include Big Bend National Park and Fort Davis National Historic Site of the National Park Service, Elephant Mountain Wildlife Management Area and Davis Mountains State Park operated by the Texas Parks and Wildlife Department, and the Davis Mountains Preserve of the Nature Conservancy of Texas. The road is in the Chihuahuan Desert and passes mostly through scrub land except in the higher elevations of the Davis Mountains where the road encounters forested sky islands. The road also provides access to the University of Texas at Austin's McDonald Observatory.


In 1927, the Texas Legislature authorized the Texas Highway Department, a precursor agency to TxDOT, to construct Davis Mountains State Park Highway after what was then the State Parks Board had failed to acquire parkland for a state park within the Davis Mountains. The road was to include portions of the present SH 118 and State Highway 166 now known as the Davis Mountains Scenic Loop. On August 17, 1926, SH 118 was designated from Marfa to Presidio.[2] On March 19, 1929, the route was extended north to Fort Davis.[3] On May 1, 1931, SH 118 was replaced by SH 17 and SH 118 was instead assigned on the old route of SH 3 from Alpine to Fort Davis which was completed.[4] By 1932, the parks board finally acquired land for a park ending the need for a park highway.[5] The road, which had then been built from Fort Davis to Fowlkes Ranch, was designated as SH 166. [6] On December 22, 1936, SH 118 extended south to Terlingua.[7]

On September 26, 1939 when the state highway commission approved the General Redesignation of the State Highway System and created the state's Highway Designation Files,[8] SH 118 had been extended north to Kent, replacing SH 233.[9][10] With this new designation, the route was largely the same as the present with the exception of taking a more westerly path at a point near Adobe Walls Mountain in southern Brewster County in order to terminate at Terlingua rather than Study Butte; although, except for the stretch between Alpine and Fowlkes Ranch, the road was unpaved and even classified as primitive in places.[11][12][13] The stretch of the road through Fort Davis to the present intersection with SH 166 at Nunn Hill was concurrent with SH 166.[1][14] On October 30 of that same year, a spur route of former State Highway 227 was designated as an extension of SH 118 causing the road to terminate at SH 227.[1][15] This extension followed the easternmost path of present-day FM 170 to its terminus, and then down the southernmost stretch of the present SH 118 and the westernmost portion of the current park road ending at the intersection of what is now the Old Maverick Road within the present Big Bend National Park.[11]

On May 29, 1941, the state canceled the designation of SH 118 from Alpine to SH 227 with the Terlingua Spur between Terlingua and SH 227 receiving the designation of State Spur 121 and the portion between Terlingua and Alpine reverting to county jurisdiction.[1][16] On November 24 of that same year, SH 166 was given its present termini with its concurrent designation over SH 118 from Fort Davis to Nunn Hill dropped.[1][14] The cancellation of the route south of Alpine was short lived. On January 8, 1946, SH 118 extended south 10 miles from Alpine. On February 20, 1946, Spur 121 was cancelled. On September 9, 1947, SH 118 extended south 10 more miles. On July 15, 1949, SH 118 extended south 40 more miles. On July 25, 1951, SH 118 extended south 10 miles. On December 18, 1951, SH 118 extended south 11 miles to its current terminus.[1]

Route description[edit]

SH 118 is within Brewster, Jeff Davis, and Culberson counties.

Brewster County[edit]

Texas State Highway 118 in Brewster County, approaching Terlingua and Big Bend National Park

The section of SH 118 within Brewster County makes up a majority of the route's length at 89.7 miles (144.4 km).[17] The route begins where the roadway from Big Bend National Park's headquarters reaches the park's western entrance, and then proceeds a short distance to Study Butte. At Study Butte, SH 118 intersects FM 170 to Terlingua and Lajitas, and then proceeds along the Rio Grande to Presidio. Although the area around Study Butte is mountainous, the route through much of southern Brewster County is composed of long, straight stretches through arid ranch land as the road slowly climbs in elevation as its distance from the Rio Grande increases. Between Study Butte and Alpine, there are no major intersections, only junctions with unpaved county roads serving ranches and roads into remote residential subdivisions.

Beyond a roadside picnic table near Crossen Mesa past the entrance to Elephant Mountain Wildlife Management Area, the road begins to enter the Davis Mountains. The road then becomes winding as it passes through the mountainous terrain. In this portion, there is another group of roadside picnic tables with a view of Cathedral Mountain. The road at one hill near Alpine has tight turns and steep grades as the road approaches the plateau where Alpine is situated. There is a U.S. Immigration and Customs Enforcement checkpoint south of Alpine.

The road enters Alpine as South Walker Street passing along the eastern edge of Alpine Hill. SH 118 then makes a left and right curve to move one block further west on South Cockrell Street to pass along the western side of Sul Ross State University's Jackson Field football stadium. The road then crosses the Union Pacific Railroad and intersects U.S. Route 67 and U.S. Route 90. US 67 and US 90 overlay each other, and their route through the central part of the city passes along two one-way two-lane streets one block from each other. SH joins this overlay, with its northbound route following west on East Avenue E toward Marfa and its southbound route one block south on East Holland Avenue toward Marathon and Fort Stockton. SH 118 leaves the overlay going northward at North Fifth Street. On the city's north side, SH 118 leaves the street grid and intersects State Highway 223, a short highway passing around Alpine's northeastern quadrant to US 67 and US 90 at Sul Ross State University. SH 118 then crosses the South Orient Rail Line and passes by Alpine Casparis Municipal Airport before leaving town following a straight stretch to the county line.

Jeff Davis County[edit]

View of Davis Mountains from SH 118 at Mt. Locke with downhill section of SH 118 at left

SH 118 passes through Jeff Davis County for 66.2 miles (106.5 km).[17] As the road enters the county, the road intersects Ranch to Market Road 1837 to the Girl Scouts of the USA's Camp Mitre Peak, then SH 118 enters Musquiz Canyon where the road again becomes winding with occasional steep grades and sharp curves. There is another collection of roadside picnic tables near the ruins of the Musquiz pioneer homestead on the highway's right of way within the canyon. After this, the road emerges from the canyon near the Chihuahuan Desert Research Institute and passes along a plateau toward Fort Davis.

The road enters Fort Davis as Musquiz Drive and intersects State Highway 17 at South State Street. SH 118 then follows SH 17 through town along State St. passing by the entrance to Fort Davis National Historic Site at Lt. Flipper Drive. The road then passes along the eastern park boundary until SH 118 separates from SH 17 on the north edge of town. SH 118 then follows Canyon Drive out of town along the north boundary of the national historic site into Limpia Canyon.

The road then enters Davis Mountains State Park where it intersects State Park Road 3. The road then proceeds toward Mount Locke and McDonald Observatory with many roadside picnic tables between Fort Davis and the observatory. The route toward the observatory has numerous steep grades and tight curves. At Mt. Locke, SH 118 intersects State Highway Spur 78 which proceeds the rest of the way toward McDonald Observatory.

Beyond the observatory at Eppenauer Ranch, the road becomes much more rugged with narrower lanes and only grass shoulders. The road continues through steep grades and curves requiring slow speeds through the forested higher elevations of the Davis Mountains. Along this stretch to the intersection at SH 166, the roadway is often not fenced and cattle guards cross the road. Loose livestock pose a hazard to motorist in this portion of the road. In this section of the road is the Lawrence E. Woods Park in Madera Canyon, a roadside drive with five picnic tables amidst a grove of Ponderosa Pines that is also the trail head of a 2.5-mile (4.0 km) Davis Mountains Preserve hiking trail. After the intersection with SH 166 toward Valentine, SH 118 alternates between straight and mountainous stretches for the remainder of the distance in the county.

Culberson County[edit]

The Culberson County portion of SH 118 is the shortest at 1.5 miles (2.4 km).[17] The road continues north through ranch land with no intersections with public roads until it terminates at Kent at the edge of the northern foothills of the Davis Mountains. At its terminus, the road overpasses Interstate 10. Beyond the terminus at I-10, the roadway itself continues northward as Ranch to Market Road 2424. Speed Limit on TX 118 is 55 in Culberson County and 70 in Jeff Davis County.

Major intersections[edit]

Brewster00.0Logo of the United States National Park Service.svg Big Bend National Park roadRoute begins at BBNP west entrance
Study Butte2.84.5 FM 170 – Terlingua
Alpine80.3129.2South Cockrell StreetSH 118 enters town on South Walker Street then curves one block west
80.5129.6 US 67 (East Holland Avenue East (eastbound)) / US 90 – Marathon, Fort StocktonSH 118 southbound overlay of US 67/US 90 ends
80.6129.7 US 67 (East Avenue East (westbound)) / US 90SH 118 northbound overlays US 67/US 90
81.0130.4 US 67 (East Avenue East (westbound)) / US 90 – MarfaSH 118 follows North 5th Street; southbound overlay begins one block south at East Holland Avenue East
81.9131.8North 5th StreetSH 17 leAvenues city street grid
82.1132.1 SH 223 (East Hendryx Avenue East)
Jeff Davis91.0146.5 RM 1837Mitre Peak Girl Scout Camp
Fort Davis104.8168.7 SH 17 (State Street) – MarfaSH 118 (Musquiz Drive) merges with SH 17
105.7170.1Logo of the United States National Park Service.svg Lt. Flipper DriveFort Davis National Historic Site
106.1170.8 SH 17 (State Street) – BalmorheaSH 118 follows Canyon Drive out of town
108.9175.3 PR 3 (Davis Mountains Park Road)Davis Mountains State Park
120.1193.3 Spur 78 (McDonald Observatory Spur)McDonald Observatory
134.2216.0 SH 166 – Valentine
CulbersonKent157.3253.1 I-10 / RM 2424 – Van Horn, Balmorhea, PecosNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b c d e f Transportation Planning and Programming Division (n.d.). "State Highway No. 118". Highway Designation Files. Texas Department of Transportation.
  2. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676945.pdf. Missing or empty |title= (help)
  3. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673781.pdf. Missing or empty |title= (help)
  4. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673802.pdf. Missing or empty |title= (help)
  5. ^ "TPWD Park: Davis Mountains State Park". The Look of Nature: Designing Texas State Parks During the Great Depression. Texas Parks and Wildlife Department. Retrieved 19 September 2009. External link in |work= (help)
  6. ^ Official Map of the Highway System of Texas (Map) (15 June 1933 ed.). Texas Highway Department. § M6-M8. Retrieved 19 September 2009.
  7. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673889.pdf. Missing or empty |title= (help)
  8. ^ "Chapter 14: Texas Highway Designation Files". Texas Reference Marker (TRM) System User’s Manual. Texas Department of Transportation. External link in |work= (help)
  9. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673885.pdf. Missing or empty |title= (help)
  10. ^ Texas Highway Map (Map). Texas State Highway Department. 1937.
  11. ^ a b General Highway Map Brewster County Texas (Map) (1936 partially revised to 1 February 1940 ed.). Texas Highway Department. Retrieved 20 September 2009.
  12. ^ General Highway Map Culberson County Texas (Map) (1936 partially revised to 1 February 1940 ed.). Texas Highway Department. Retrieved 20 September 2009.
  13. ^ General Highway Map Jeff Davis County Texas (Map) (1936 partially revised to 1 February 1940 ed.). Texas Highway Department. Retrieved 20 September 2009.
  14. ^ a b Transportation Planning and Programming Division (n.d.). "State Highway No. 166". Highway Designation Files. Texas Department of Transportation.
  15. ^ Transportation Planning and Programming Division (n.d.). "State Highway No. 227". Highway Designation Files. Texas Department of Transportation.
  16. ^ Transportation Planning and Programming Division (n.d.). "State Highway Loop No. 121". Highway Designation Files. Texas Department of Transportation.
  17. ^ a b c Texas Department of Transportation, Statewide Planning Map using map's measurement utility
  18. ^ Google (2009-12-18). "Route of SH 118" (Map). Google Maps. Google. Retrieved 2009-12-18.

External links[edit]

Geographic data related to Texas State Highway 118 at OpenStreetMap