Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former U.S. Route or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped sign and numbered like the shield of the parent Interstate highway.
Along Interstate 35 (I-35), business routes are found in four states through which I-35 passes: Texas, Missouri, Iowa, and Minnesota. Some states regard Interstate business routes as fully integrated within their state highway system while other states consider them to be either local roads to be maintained by county or municipal authorities or a hybrid of state and local control. Every state along I-35 regards its business routes as fully incorporated members of their respective state maintained highway systems.
Although the public may differentiate between different business routes by the number of the parent route and the location of the route, there is no uniform naming convention. Each state highway department internally uses its own designations to identify segments within its jurisdiction.
In Laredo, Bus. I-35-A runs from its junction with I-35 southward along San Bernardo Avenue to Houston Street; thence westward along Houston Street to Salinas Avenue; thence southward along Salinas Avenue to the US Customs Port-of-Entry; thence northward along Convent Avenue to Matamoros Street; and thence eastward along Matamoros Street to the junction of I-35 and U.S. Highway83 (US83).
The route was designated as Loop420 on November5, 1965, but was changed to Business U.S. Highway83-K (Bus. US83-K) on June21, 1990, but as Bus. I-35-A on March26, 1991.
Business Interstate35-B (Bus. I-35-B) in Encinal is a former alignment of US81. The route's southern terminus is at northbound I-35 exit38, just south of the Webb–La Salle county line. It briefly travels westward, crossing under I-35 and then turns north along Main Street, paralleling the Union Pacific Railroad tracks to the west. It has an intersection with State Highway44 (SH44) and turns to the east, concurrent with SH44, before ending at I-35 exit39.[4]
From January20, 1977, to June21, 1990, this route was designated Loop532, but was signed as a business route of US81.[5]
Business Interstate35-C (Bus. I-35-C) in Cotulla is routed along Main Street, which was previously US81, and connects to I-35 at exits65 and 69. Within the Cotulla city limits, the route intersects SH97 and Farm to Market Road 468 (FM468).[7]
Business Interstate35-D (Bus. I-35-D) in Dilley is routed along Main Street, which was previously US81. The route's southern terminus is at I-35 exit82; it travels northward, paralleling the Union Pacific Railroad tracks to the east. Within the Dilley city limits, the route intersects SH85 and FM 117 before ending at I-35 exit86.[9]
Business Interstate35-E (Bus. I-35-E) in Pearsall was designated on March26, 1991, along a former portion of US81 and is concurrent with FM 140 and FM 1581.
Business Interstate35-H (Bus. I-35-H) in New Braunfels is known locally as Elliot Knox Boulevard. The highway was designated on March26, 1991, with the mileage being transferred from US81.
Bus. I-35-H begins at I-35 exit185 and briefly runs along Schimdt Avenue before turning onto Elliot Knox Boulevard approximately 0.2 miles (0.32km) north of I-35. The highway runs in a generally east–west direction, passing by many residential areas. Just east of Seguin Avenue, Bus. I-35-H crosses over the Guadalupe River and briefly serves as the frontage road for southbound I-35. The highway turns toward the northeast and has an intersection with SH46/Loop337 before running through less developed areas of the town. Bus. I-35-H ends at I-35 exit190A, near Canyon High School.
Route marker near the northern terminus of the Kyle business loop
Business Interstate35-J (Bus. I-35-J) in Kyle is the former alignment of US81 through the city. The route is accessible from southbound I-35 at exit213, which serves Ranch to Market Road 150 (RM150); the business loop designation begins along the frontage road at the end of the exit ramp. The road travels through Kyle and crosses RM150 before once again becoming the southbound I-35 frontage road north of milemarker213.[14]
Business Interstate35-L (Bus. I-35-L) in Round Rock was commissioned on June21, 1990, and followed the previous route of US81 along Mays Street, from Hesters Crossing Road to Old Settlers Boulevard for approximately 4.5 miles (7.2km). The designation was canceled on February28, 2013, and the section north of US79 was transferred to Spur379.[15][16][17][18] Spur379 was given to the city of Round Rock on March26, 2020.[19]
From August1, 1963, to June21, 1990, the route was designated as Loop384.
Business Interstate35-M (Bus. I-35-M) was located in Georgetown. The route was decommissioned on May25, 2006, with portions being renamed as Spur26 and Spur158.
From October15, 1965, to June21, 1990, the route was designated as Loop418.
Business Interstate35-V (Bus. I-35-V) in Alvarado runs along the former alignment of US81 along Parkway Drive and is accessible from I-35W at exits24 (both directions) and 26B (southbound only). The section from US67 to College Street is cosigned as Bus. US67-N, though it is not part of that route's official designation.[22][23]
From November20, 1963, to October25, 1990, the route was designated as Loop392.[24]
Business Interstate35-X (Bus. I-35-X) in Sanger is a former alignment of US77 through Sanger and is accessible from both directions of I-35 at exit477. The route travels north along 5thStreet and crosses FM 455 before ending at the northbound I-35 frontage road near milemarker479.[26]
From November18, 1960, to December19, 1991, this route was designated Spur138. Since March26, 2009, that route number has been used for an unrelated route in Hunt County.[27]
Interstate35 Business Loop (I-35 BL) in Cameron runs between exits52 and 54. It begins westbound from I-35 overlapping Route BB westbound (East Evergreen Street), then turns north at the interchange with US69 (South Walnut Street). At US36 expressway bypass, the routes turn east and finally terminating at I-35.
Interstate35 Business Loop (I-35 BL) in Ames runs between exits111 and 113. It begins westbound from I-35 overlapping US30 westbound, then turns north at the interchange with US69 (South Duff Avenue). At Lincoln Way, the routes turn west again, only to turn north again at Grand Avenue. I-35 BL breaks away from the overlap with US69 by turning east onto East 13thStreet until finally terminating at I-35.
Interstate35 Business Loop (I-35 BL) in Clear Lake runs between exits193 and 194 on I-35. The route begins at exit193 where it runs west along 4thAvenue South (former Iowa Highway 106 (Iowa106)), until the intersection with North 8thStreet (former Iowa 107) and turns north. Immediately after a grade crossing with a former Milwaukee Road railroad line, the route makes a right turn overlapping US18. The route follows US18, which itself runs parallel to that old Milwaukee Road line until it curves away after North 14thStreet. East of North 20thStreet, I-35 BL/US18 becomes a divided highway. I-35 BL ends at exit194 on I-35, US18 turns south in an overlap with I-35, and the road previously carrying both routes becomes US18 Bus./Iowa 122.
Interstate35 Business (I-35 Bus.) in Albert Lea runs along US65 between exits8 and 12 on I-35. The route begins at a quarter cloverleaf interchange with exit8 and runs northwest along US65, a four-lane at-grade divided highway. North of 7thAvenue, the routes curve straight north onto South Broadway Avenue and becomes a two-lane undivided highway. Arriving downtown, the routes intersect Front Street with a level crossing of a railroad line running from the southwest to the northeast corner of that intersection before crossing another railroad line immediately after this intersection. I-35 Bus./US65 makes a sharp right turn to the east onto Main Street (CHAS46), while in the opposite direction is the southern beginning of Minnesota State Highway 13 (MN13). North Broadway continues from that point toward Fountain Lake Park four blocks north. I-35 Bus./US65/CHAS46 runs straight east along a divided highway for a block and a half then begins to curve to the northeast until after it crosses a bridge over the Shell Rock River, then curves back to the east before the bridge over the first railroad line that two of these routes crossed downtown. Halfway between Ulstad and Fenton avenues, the road curves to the northeast again and the divider widens, as frontage roads begin on both sides at Morningside Avenue. East of the intersection with Prospect Avenue, I-35 Bus. and US65 break away from CHAS46 at a northbound only Y interchange and has only one last intersection at Sorenson Road (CHAS45) and Blake Avenue. I-35 Bus. and US65 both terminate at a northbound only flyunder interchange with I-35 at exit12, which is marked as such southbound.
Interstate35 Business (I-35 Bus.) in Faribault begins at the intersection of I-35 and Lyndale Avenue/County State Aid Highway48 (CR48, exit55) to the intersection with MN 60 and thence northerly along MN 21, and terminates at the intersection of I-35 and MN21 (exit59). The route travels south to north through the business district of Faribault, a distance of approximately three miles (4.8km).
Interstate35 Business (I-35 Bus.) in Pine City begins at the intersection of I-35 and CR7 (exit169) to the intersection with CR61 and thence northerly along CR61, parallel to I-35, to the intersection with CR11. Thence the business route extends westerly along CR11 and terminates at the intersection of I-35 and CR11 (exit171). The route travels south to north through the business district of Pine City, a distance of approximately three miles (4.8km).
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Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former US route or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped and numbered like the shield of the parent Interstate highway.
Texas State Highway Loop 463 is a state highway loop in the city of Victoria in the U.S. state of Texas. The highway composes the eastern segment of the Zac Lentz Parkway; the western section carries US 77.
All of the business loops within Texas are maintained by the Texas Department of Transportation (TxDOT). Interstate 20 (I-20) has 15 business loops in the state, all located in western Texas. Along I-20, TxDOT identifies each business route as Business Interstate 20 followed by an alphabetic suffix. Along Texas Interstates, the alphabetic suffixes on business route names ascend eastward and northward. There are gaps in the alphabetic values to allow for future system expansion. The alphabetic naming suffixes are included as small letters on the bottom of route shields.
State Highway Spur 536 is a state highway spur in San Antonio, Texas.
U.S. Highway 77 Alternate is a north–south auxiliary route of US 77, located entirely within the state of Texas. The route was commissioned in 1953, when US 77 was rerouted in southeast Texas.
A total of twelve special routes of U.S. Route 79 exist, divided between the states of Arkansas, Louisiana, Tennessee and Texas. Currently, they are all business routes, except for one bypass of Humboldt, Tennessee, and one bypass of Homer, Louisiana.
State Highway Loop 473 (Loop 473) is a loop located in Wichita Falls.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.2155. Retrieved June 20, 2023.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-B". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.2116. Retrieved July 15, 2021.
↑ Transportation Planning and Programming Division (n.d.). "State Highway Loop No.532". Highway Designation Files. Texas Department of Transportation. Retrieved December 8, 2014.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-C". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.2062. Retrieved July 15, 2021.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-D". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.2019. Retrieved July 15, 2021.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-E". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-H". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-J". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.1689. Retrieved July 15, 2021.
1 2 3 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-L". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.1539. Retrieved July 15, 2021.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.1488. Retrieved July 15, 2021.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-M". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-V". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No.67-N". Highway Designation Files. Texas Department of Transportation. Retrieved December 8, 2014.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.789. Retrieved July 15, 2021.
↑ Transportation Planning and Programming Division (n.d.). "State Highway Loop No.392". Highway Designation Files. Texas Department of Transportation. Retrieved December 8, 2014.
1 2 Transportation Planning and Programming Division (n.d.). "Business Interstate Highway No.35-X". Highway Designation Files. Texas Department of Transportation. Retrieved October 2, 2010.
↑ Transportation Planning and Programming Division (2018). Texas County Mapbook(PDF) (Map) (2018ed.). 1:72,224. Texas Department of Transportation. p.496. Retrieved July 15, 2021.
↑ Transportation Planning and Programming Division (n.d.). "State Highway Spur No.138". Highway Designation Files. Texas Department of Transportation. Retrieved December 8, 2014.
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