page_title: Interstate 37
section_title: History
hierarchical_section_title: Interstate 37 / History
caption_attribution_description: A picture the interchange at Interstate 37 and U.S. Route 77 north of Corpus Christi, Texas.
context_page_description: Interstate 37 is a 143.0-mile Interstate Highway located within the southern portion of the U.S. state of Texas. The highway was first designated in 1959 as a route between Corpus Christi and San Antonio. Construction in the urban areas of Corpus Christi and San Antonio began in the 1960s and the segments of the Interstate Highway in rural areas were completed by the 1980s. Prior to I-37, the route between Corpus Christi and San Antonio was served by a combination of State Highway 9 from Corpus Christi to Three Rivers and U.S. Route 281 from Three Rivers to San Antonio. As a result of the construction of I-37, SH 9 was removed from the State Highway System.
  The highway begins in Corpus Christi at US 181 and SH 35 and heads north to San Antonio, where it ends at I-35. Beyond I-35, the freeway continues as US 281 to northern San Antonio as a major freeway. In Corpus Christi, the highway provides access to the downtown area, the Port of Corpus Christi, and the Corpus Christi International Airport.
context_section_description: Prior to I-37, the routing between Corpus Christi and San Antonio was covered by SH 9 from Corpus Christi to Three Rivers and US 281 from Three Rivers to San Antonio. Beginning in 1971, sections of SH 9 were officially removed from the State Highway System as I-37 was completed. No sections of US 281 were removed from the State Highway System as a result of the construction of I-37, but the two do share the same alignment at two different points between San Antonio and Three Rivers. Also, US 281 was rerouted onto I-37 in San Antonio in 1978.
  I-37 was first designated in 1959 to provide a route between San Antonio and Corpus Christi. Construction began in the 1960s and the route was completed by the 1980s. The first sections of the freeway completed were in Corpus Christi. The freeway was completed from its southern terminus to 1.2 miles (1.9 km) to the west at the Port Avenue overpass to include the SH 286 interchange in 1963. In 1964, the freeway was extended another 1.1 miles (1.8 km) westward with the completion of the overpasses at Nueces Bay Boulevard and Buddy Lawrence Boulevard. By 1965, the freeway had been extended west 1.4 miles (2.3 km) to Navigation Boulevard. In 1966, the interchange at SH 358 was complete, as were the mainlanes to Corn Products Road, 1.0 mile (1.6 km) west of the SH 358 interchange. By 1968, the freeway had been completed an additional 8.1 miles (13.0 km) further west to Callicoatte Road. The southbound I-37 bridge over the Nueces River was built in 1933 for US 77 (future I-69E) when it was first routed through Corpus Christi. The northbound bridge was built in 1958 with the expansion of US 77 (future I-69E) to four lanes.
  Construction in San Antonio also began in the 1960s and was completed in 1972. The first sections were completed in 1967 to include the portion just south of I-410 at the US 181 interchange. The section from Steves Avenue north to Florida Street to include the I-10 interchange was also complete in 1967. In 1968, the section south of I-410 was extended south to Loop 1604. In 1969, the two sections were connected with the completion of overpasses at Goliad Road, Pecan Valley Drive, Fair Avenue and Hackberry Street as well as the completion of the interchanges at I-410 and Loop 13. The last sections left were on the east side of downtown. The downtown overpasses at Durango Boulevard, Commerce Street and the overpass stretching from Houston Street to Jones Avenue were all completed in 1972. The last portion completed in San Antonio was the stack interchange at I-35 (also known as the San Antonio "Downtown Mixer"), near the Pearl Brewery. With the completion of the interchange in 1972, the city had a complete freeway loop in conjunction with I-10 and I-35 around the central business district of the city. At the time construction began in July 1969, the I-35 interchange was the largest highway construction project in state history at $11 million (equivalent to $59 million in 2018).
  The rural sections of the freeway were completed later than those in the urban areas. Construction of the highway in Corpus Christi and Nueces County continued north over the Nueces River into San Patrico County. The interchange at US 77 (future I-69E) was completed in 1969. The road that was already in existence along this stretch, SH 9, would be utilized as a frontage road as many of the bridges along this stretch were from when SH 9 was built in the 1930s. The main lanes were extended northward to SH 234 in 1969. By 1970, the freeway had been extended as far north as SH 188. In 1971, I-37 reached FM 888 and service to the city of Mathis. During the mid-1970s, the southern section and northern section were both being extended. The southern section was extended northward in Live Oak County to US 59 (future I-69W) in 1975 and FM 799 in 1976. The northern section saw completion in Atascosa County to FM 541 in 1975 and FM 1099 in 1976. By the early 1980s, the freeway was nearly complete. In 1980, the interchange at US 281 southeast of Pleasanton was complete. With the completion of the interchange at S
caption: The interchange between I-37 and I-69E/US 77
exif: {"Image ImageDescription": "", "Image Make": "SONY", "Image Model": "CYBERSHOT", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop 7.0", "Image DateTime": "2005:02:06 15:04:29", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "256", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "698", "Thumbnail JPEGInterchangeFormatLength": "2588", "EXIF ExposureTime": "1/340", "EXIF FNumber": "34/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "100", "EXIF ExifVersion": "0210", "EXIF DateTimeOriginal": "2005:01:09 10:59:20", "EXIF DateTimeDigitized": "2005:01:09 10:59:20", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "CenterWeightedAverage", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "21/2", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "780", "EXIF ExifImageLength": "467", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed"}