Cosigned with U.S. 50 & 89, Business Spur I-70 connects Interstate 70 with the city of Salina north from Exit 54 via State Street. The 1.8 mile route is signed with a handful of shields to the four-way stop where U.S. 50 and U.S. 89 separate at the city center. From Exit 54, U.S. 50 and U.S. 89 split, with U.S. 89 traveling southwest along with Interstate 70 toward Richfield and U.S. 50 traveling east toward Grand Junction, Colorado.
The 2.3 mile business route for I-70 at WaKeeney was submitted to AASHTO and in 1979. The route would have connected the city center with Interstate 70 from Exit 127 by way of an overlap with U.S. 283 along 1st Street north and Barclay Avenue to the west. The east side of the loop would branch south from U.S. 283 and Barclay Avenue along 13th Street to I-70 at Exit 128. Ultimately disapproved by AASHTO, the route was alternatively marked as U.S. 40 Business.
The business loop proposed for the city of Russell involved a 6.5 mile route north from Exit 184 along U.S. 281 (Fossill Street) to Wichita Avenue and old U.S. 40 southeast back to I-70 at Exit 189. Disapproved by AASHTO on October 13, 1979, the alignment was posted as U.S. 40 Business.
Junction City and Grandview Plaza
This proposed business route for I-70 would have run north along U.S. 40 & 77 Alternate on Washington Street in Junction City to 6th Street (U.S. 40 Alternate) east to Grandview Plaza. The 4.1 mile loop would begin at Exit 296 and end at Exit 300. It was disapproved by AASHTO on October 13, 1979 and instead designated as U.S. 40 Business.
Interstate 270 Spur in Maryland is one of four Interstate spurs designated my the Maryland State Highway Administration (MDSHA). Others include I-495X (Cabin John Parkway) south from Exit 39 in suburban Washington, and I-895A and I-895B, connectors linking the Harbor Tunnel Thruway (I-895) in Baltimore with I-97 and MD 2 respectively. These routes are all unsigned for the most part.
North Bethesda and Potomac, Maryland
Interstate 270Y, per MDSHA documents, is a 2.1 mile long freeway spur in suburban Montgomery County. Not a traditional business spur, I-270 Spur is merely the southwestern branch of Interstate 270 connecting the mainline with the Capital Beltway (I-495).
This heavily traveled route was previously signed with “spur” banners positioned above I-270 markers, but is essentially unsigned now with the exception of a single reference on a southbound I-270 overhead.
The freeway was signed as I-270 when the mainline from I-495 northwest to Frederick was designated Interstate 70S. This changed in 1973.
- “CDOT, City of Grand Junction Partner on State’s First Diverging Diamond Interchange.” Colorado Department of Transportation, news release. July 12, 2013.
- Colo Hwys: Interstate Business Routes (Matt Salek).
- “Exit 241 Reconfiguration.” I-70 Mountain Peak Period Shoulder Lane Project web site (CDOT).
- Email correspondence with Matt Salek.
- Email correspondence and field observations from Harrison Page, and references to a Fred F. Johnson map of Springfield displaying Business Loop I-70 along SR 4.
Page updated April 19, 2017.