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Business routes of U.S. Route 131

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US Highway 131 marker

US Highway 131
Highway system

There are six business routes of US Highway 131 in the state of Michigan, and previously there was one bypass route. All of the business routes are former sections of US Highway 131 (US 131). These former sections of the mainline highway, along with the necessary connecting roads, allow traffic to access the downtowns business districts of cities bypassed by sections of US 131 built since the 1950s. The extant business loops connect to Constantine, Three Rivers, Kalamazoo, Grand Rapids, Big Rapids, Cadillac, and Manton. The former bypass route in Grand Rapids allowed traffic to bypass that city's downtown at a time when US 131 still ran through the heart of the city.

Constantine[edit]


Business US Highway 131
Location: Constantine
Length: 3.656 mi[1] (5.884 km)
Existed: October 30, 2013[2]–present

Business US Highway 131 (Bus. US 131) is a business loop running through downtown Constantine. It starts south of the village in Constantine Township near some farm fields and runs northward. The highway passes a mobile home park and a couple of businesses before veering northwesterly on Washington Street through a residential neighborhood on the south side of Constantine. Bus. US 131 crosses the St. Joseph River and then turns northeasterly on Broad Street. The loop runs parallel to the banks of the river as the highway exits the northern side of the village. Bus. US 131 ends in Constantine Township where it intersects the northern end of the Constantine Bypass.[3][4]

The Michigan Department of Transportation (MDOT) has been studying a freeway upgrade for US 131 through St. Joseph County for several years. In late 2005, MDOT decided not to pursue an upgrade of the highway, but rescinded that decision in April 2006[5] under political pressure in the state.[6] The department began building a two-lane bypass west of Constantine.[7] The American Association of State Highway and Transportation Officials, which is in charge of US Highway numbering assignments and routings, approved the relocation of the US 131 designation out of Constantine on November 16, 2012. The group's Special Committee on U.S. Route Numbering also approved the creation of a business route for the old highway through town.[8] The bypass opened on October 30, 2013,[2] and the business route designation was put into service that day.[9]

Major intersections
The entire highway is in St. Joseph County.

Location mi[1] km Destinations Notes
Constantine Township 0.000 0.000 US 131 – Three Rivers, Middlebury
Constantine 1.770–
1.974
2.849–
3.177
Bridge over St. Joseph River
Constantine Township 3.656 5.884 US 131 – Three Rivers, Middlebury
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Three Rivers[edit]


Business US Highway 131
Location: Three Rivers
Length: 2.982 mi[1] (4.799 km)
Existed: 1953[10][11]–present

Business US Highway 131 (Bus. US 131) is a three-mile-long (4.8 km) business loop running through downtown Three Rivers. It follows M-60 (Michigan Avenue) eastward from a commercial district on the main highway into downtown. Bus. US 131/M-60 passes through a residential neighborhood and crosses the Rocky River near its confluence with the St. Joseph River. On the east side of the river, the business loop turns north-northwesterly onto Main Street, separating from M-60 at an intersection that also features M-86. Bus. US 131 (Main Street) passes several more businesses and turns due north through a residential area. Near the northern terminus, the business loop passes a handful of businesses before ending at an intersection with US 131 on the north side of town.[12][13]

The Three Rivers Bypass opened in the middle of 1953, and the former route of the highway through downtown was redesignated as the business loop at that time.[10][11]

Major intersections
The entire highway is in Three Rivers, St. Joseph County.

mi[1] km Destinations Notes
0.000 0.000 US 131 / M-60 west – Kalamazoo, Constantine, Cassopolis Western end of M-60 concurrency
1.003 1.614 M-60 east – Jackson
M-86 east – Coldwater
Eastern end of M-60; western terminus of M-86
2.982 4.799 US 131 – Constantine, Kalamazoo
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Kalamazoo[edit]


Business US Highway 131
Location: Kalamazoo
Length: 9.999 mi[1] (16.092 km)
Existed: 1964[14][15]–present

Business US Highway 131 (Bus. US 131) is an almost 10-mile-long (16 km) business loop running through downtown Kalamazoo. The southern end of the highway is at an interchange for exit 36 along US 131 west of downtown Kalamazoo in Oshtemo Township. Bus. US 131 runs concurrently with Business Loop Interstate 94 (BL I-94) eastward along the five-lane Stadium Drive through a commercial area north of Asylum Lake. Near the campus of Western Michigan University, BL I-94/Bus. US 131 turns northeasterly along the edge of the campus. Northeast of Waldo Stadium and the campus, the street name changes to Michigan Avenue. BL I-94/Bus. US 131 merges with M-43 at the intersection with Main Street, and Michigan Avenue turns eastward as a one-way, four-lane street into downtown Kalamazoo. This intersection also marks the western end of the one-way pairing of Michigan Avenue (eastbound) and Kalamazoo Avenue (westbound), using Michikal Street to connect the two southbound. The two directions of traffic are separated by three blocks as they travel through downtown. At the one-way pairing of Park Street (northbound) and Westnedge Avenue (southbound), Bus. US 131 turns north–south; south of this complex of intersecting one-way streets, Westnedge and Park carries M-331, an unsigned highway. Westnedge and Park run two blocks apart on four-lane streets and pass through residential areas north of downtown. North of town, Westnedge curves northeasterly to run next to Park, and the two streets form the opposing two-lane carriageways of a freeway. This freeway runs north and then turns westward. There is a half folded diamond interchange for Douglas Avenue. West of that interchange, the freeway turns northwesterly, passing between suburban residential subdivisions before terminating at a partial interchange with US 131. At this endpoint, northbound Bus. US 131 traffic must enter northbound US 131, and only southbound US 131 traffic has access to the southbound direction of the business loop.[16][17]

On December 7, 1959, the I-94/US 12 freeway opened on the south side of Kalamazoo,[18] and US 12 was shifted to follow the new freeway. The former route through downtown Kalamazoo and along Stadium Drive was redesignated Bus. US 12.[19] The next year, it was renumbered BL I-94.[20] In 1963, the US 131 freeway opened on the northwest side of Kalamazoo. US 131 followed M-43 eastward from the end of the freeway into the downtown area to reconnect to its original routing along Westnedge and Park.[21][22] The next year, another section of US 131 opened southwest of Kalamazoo, and US 131 was rerouted out of downtown completely.[14][22] The freeway section north of downtown opened in 1964, and Bus. US 131 was designated along it into downtown and along BL I-94 back out to the US 131 freeway west of downtown.[14][15] Later in 1965, Kalamazoo and Michikal avenues were transferred to state jurisdiction to set up the one-way pairing east–west through downtown. Kalamazoo and Michikal are then signed as southbound Bus. US 131 from Westnedge Avenue to Stadium Drive while Main Street and Michigan Avenue continued to serve northbound traffic only between Stadium Drive and Park Street.[15][23]

Major intersections
The entire highway is in Kalamazoo County. All exits are unnumbered.

Location mi[1] km Destinations Notes
Oshtemo Township 0.000 0.000 US 131 / BL I-94 west – Grand Rapids, Three Rivers Western end of BL I-94 concurrency; exit 36 on US 131
Kalamazoo 3.825 6.156 M-43 west – South Haven Western end of M-43 concurrency
3.987–
4.112
6.416–
6.618
BL I-94 east / M-43 east (Michigan Avenue/Kalamazoo Avenue)
M-331 south (Westnedge Avenue/Park Street)
Eastern end of BL I-94/M-43 concurrency; northern terminus of unsigned M-331
Kalamazoo Township 5.801 9.336 Eastern end of freeway
6.472 10.416 Douglas Avenue Half-folded diamond interchange
9.999 16.092 US 131 north – Grand Rapids Northbound exit and southbound entrance only
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Grand Rapids bypass[edit]


Bypass US Highway 131
Location: Grand Rapids
Length: 14.253 mi[1] (22.938 km)
Existed: 1945[26]–1953[24][25]

Bypass US Highway 131 (Byp. US 131) was a bypass route around downtown Grand Rapids. The highway followed 28th Street eastward from the intersection with US 131 (Division Street) south of downtown. From this starting point eastward, it ran concurrently with Byp. US 16 and Byp M-21. M-37 also followed 28th Street at the time eastward from the intersection at Kalamazoo Avenue. At the intersection with East Beltline and Broadmoor avenues in Paris Township (now Kentwood), Byp.US 16/Byp. US 131/Byp.M-21 turned northward to follow East Beltline, and M-37 turned southward on Broadmoor. The bypass route continued northward through Grand Rapids Township. At the intersection with US 16/M-50 (Cascade Road), Byp. US 16 ended, and Byp. M-21 ended less than half a mile (0.4 km) north of that at the intersection with M-21 (Fulton Street). North of the intersection with Fulton Street, Byp. US 131 was the only designation along East Beltline Avenue at the time. The highway ran northward into Plainfield Township, and it terminated at an intersection with US 131 at Plainfield Avenue and Northland Drive just south of the Grand River.[24]

By 1945, Byp. US 131, along with the other various bypass routes, was designated along the Grand Rapids beltline system, replacing M-114. Byp. US 131 followed the south beltline (28th Street) and East Beltline Avenue between Division Avenue and Plainfield Avenue, allowing north–south traffic to bypass downtown Grand Rapids.[26] In late 1949, M-37 was rerouted onto 28th Street between Kalamazoo and East Beltline/Broadmoor avenues.[27][28] Then in 1953, US 131 was rerouted onto the beltlines to replace its bypass route; the former mainline through downtown was redesignated Bus. US 131.[24][25]

Major intersections
The entire highway was in Kent County.

Location mi[1] km Destinations Notes
Grand Rapids 0.000 0.000 US 131 (Division Street) – Cadillac, Kalamazoo

Byp. US 16 west / Byp. M‑21 west (28th Street) – Muskegon, Holland
Western end of Byp. US 16/Byp. M-21 concurrency
Paris Township 1.924 3.096 M-37 north (Kalamazoo Avenue) – Grand Rapids Western end of M-37 concurrency
4.188 6.740 M-37 south (Broadmoor Avenue) – Hastings Eastern end of M-37 concurrency
Grand Rapids Township 7.277 11.711 US 16 / M-50 (Cascade Road) – Grand Rapids, Lansing

Byp. US 16 west
Northern end of Byp. US 16 concurrency
7.710 12.408 M-21 (Fulton Street) – Grand Rapids, Flint

Byp. M‑21 west
Northern end of Byp. M-21 concurrency
Plainfield Township 14.253 22.938 US 131 (Plainfield Avenue/Northland Drive) – Cadillac, Grand Rapids
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Grand Rapids business loop[edit]


Business US Highway 131
Location: Grand Rapids
Length: 2.419 mi[1] (3.893 km)
Existed: 1953[24][25]–present

Business US Highway 131 (BUS US 131) is a 2.4-mile-long (3.9 km) business loop running through downtown Grand Rapids. The southern end is at a partial interchange with US 131 south of the S-Curve near the Grand River. Only northbound traffic on US 131 can directly access the business loop at this interchange, running northward on a long ramp that connects to Ottawa Avenue at an intersection with Cherry Street. Bus. US 131 follows Ottawa Avenue northward between parking lots, and after one block, it turns eastward onto Oakes Street immediately south of the Van Andel Arena. The business loop travels three blocks along Oakes Street past commercial properties before turning northward onto Division Street. As the highway runs along Division Street, it passes the various businesses, the campuses of Kendall College of Art and Design and Grand Rapids Community College. It also passes under Michigan Avenue at the base of the hill that makes up the Medical Mile. Immediately north of the Michigan Avenue overpass, Bus. US 131 passes under Interstate 196 (I-196) without an interchange. Division Street here runs at the base of Belknap Hill through an area of the city dominated by industrial-type properties. North of an intersection with Coldbrook Street, the business loop switches to Plainfield Avenue and turns northeasterly. One block later, Bus. US 131 turns westward onto Leonard Street. The business loop follows Leonard for a few blocks and then crosses the Grand River. On the western bank of the river, Bus. US 131 meets its parent highway at exit 87 and terminates. The streets that carry the business loop have either two or four lanes with an additional center turn lane.[29][30]

The designation was created when US 131 was rerouted on the Grand Rapids beltline system in 1953. Previously, a Bypass US 131 (BYP US 131) designation was used on the beltline system following 28th Street and East Beltline Avenue. After the change, the former mainline through downtown on Division Street and Plainfield Avenue was redesignated Bus. US 131, and the mainline US 131 replaced Byp. US 131.[24][25] In 1961, the US 131 freeway was extended northward to the west of downtown, and between 28th Street and the downtown exit, it was initially designated as part of Bus. US 131.[31][32] In December 1962, the I-296/US 131 freeway was completed west of downtown.[33] Afterwards, Bus. US 131 was truncated on its southern end to the modern exit 84B interchange on the south side of downtown. At the same time, the northern end was also truncated, using Coldbrook Street and Monroe Avenue to Leonard Street to connect back to the freeway.[32][34]

In 1986, the city and state transferred jurisdiction over some streets at the northern end of the business loop, smoothing out the routing of the northern end of Bus. US 131 and eliminating some extra turns between Plainfield Avenue and Leonard Street.[35][36] The construction of the Van Andel Arena in 1995 and 1996 severed the connection from southbound Bus. US 131 to US 131.[37][38] This gap was rejoined with the reconstruction of the "S-Curve" in 1999.[39][40]

Major intersections
The entire highway is in Grand Rapids, Kent County.

mi[1] km Destinations Notes
0.000 0.000 US 131 – Cadillac, Kalamazoo Exit 84B on US 131
2.419 3.893 US 131 (I-296) – Cadillac, Kalamazoo Exit 87 on US 131
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Big Rapids[edit]


Business US Highway 131
Location: Big Rapids
Length: 6.860 mi[1] (11.040 km)
Existed: 1983[41][42]–present

Business US Highway 131 (Bus. US 131) is a 6.9-mile-long (11.1 km) business loop running through downtown Big Rapids. The southern end of the highway is at an interchange with US 131 and M-20 west of downtown in Big Rapids Township. At this interchange, M-20 leaves the freeway to run concurrently eastward with the business loop along the four-lane Perry Street into town. Bus. US 131/M-20 passes several commercial properties on the western edge of Big Rapids before crossing the city limits. South of Perry Street in the city is part of the campus of Ferris State University, including Katke Golf Course; the north side of the street contains various businesses. At the intersection with State Street, Bus. US 131/M-20 turns northward toward downtown Big Rapids, passing the northern end of the FSU campus. North of campus, the business loop passes through residential neighborhoods. At the intersection with Maple Street immediately west of downtown, M-20 turns easterly and separates from Bus. US 131. North of the downtown area, State Street ends, and the business loop follows Northland Drive parallel to the Muskegon River. On the northern edge of the city, the highway passes Roben–Hood Airport before exiting town as a two-lane road. Running in a rural area in Big Rapids Township, the business loop turns westward onto 19 Mile Road. Bus. US 131 ends at an interchange with US 131 and County Road B-96.[3][43]

In 1983 with the extension of the US 131 freeway west of Big Rapids to the interchange with 19 Mile Road, the former route of US 131 through Big Rapids on State Street and Northland Drive north of Perry Street was designated as a business loop, using M-20 (Perry Street) to connect back to the freeway on the southern end. At the time, 19 Mile Road between the freeway Northland Drive was used by the mainline to connect to its pre-existing routing north of Big Rapids to Reed City.[41][42] The US 131 freeway was completed north of 19 Mile Road in 1986, and Bus. US 131 was extended over the 19 Mile Road portion of US 131 to connect with its parent route at exit 142 northwest of Big Rapids.[44][45]

Major intersections
The entire highway is in Mecosta County.

Location mi[1] km Destinations Notes
Big Rapids Township 0.000 0.000 US 131 / M-20 west – Cadillac, Grand Rapids, White Cloud Western end of M-20 concurrency; exit 139 on US 131
Big Rapids 2.814 4.529 M-20 east (Maple Street) – Mount Pleasant Northern end of M-20 concurrency
Big Rapids Township 6.860 11.040 US 131 – Cadillac, Grand Rapids
B-96 west (19 Mile Road)
Exit 142 on US 141; eastern terminus of B-96; roadway continues as B-96
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Cadillac[edit]


Business US Highway 131
Location: Cadillac
Length: 5.597 mi[1] (9.007 km)
Existed: 2001[46]–present

Business US Highway 131 (Bus. US 131) is a 5.60-mile-long (9.01 km) business loop running through downtown Cadillac. The southern end is at an interchange with US 131/M-55 in Clam Lake Township south of Cadillac, and the business loop runs northward along Mitchell Street away from the freeway, passing several businesses and the Maple Hill Cemetery. North of the cemetery, Mitchell Street descends a hill through a residential neighborhood south of downtown. At Howard Street, the business loop turns northwesterly into downtown near Lake Cadillac. North of downtown, Mitchell Street turns more northerly and passes the Wexford County Civic Center. At the intersection with Boon Road next to the Wexford County Airport, Bus. US 131 turns eastward onto Boon Road to connect back to the freeway in Haring Township. The business loop has at least four lanes, two in each direction, and some segments also feature a center turn lane.[3][47]

The Michigan Department of Transportation (MDOT) started construction of a freeway bypass of Cadillac in 1999.[48] With the completion of the southern half of the bypass in 2000, M-55 was rerouted out of town along the new freeway.[49] Once the northern half of the bypass was completed on October 30, 2001, US 131 was rerouted out of town along the new highway to the end of the freeway where it joined the old alignment north of town. Mitchell Street through downtown Cadillac was redesignated as Bus. US 131.[46]

Major intersections
The entire highway is in Wexford County.

Location mi[1] km Destinations Notes
Clam Lake Township 0.000 0.000 US 131 / M-55 – Petoskey, Grand Rapids, Manistee Exit 177 on US 131
Haring Township 5.597 9.007 US 131 – Petoskey, Grand Rapids Exit 183 on US 131
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Manton[edit]


Business US Highway 131
Location: Manton, Michigan
Length: 5.667 mi[1] (9.120 km)
Existed: 2003[50][51]–present

Business US Highway 131 (Bus. US 131) is a 5 23-mile-long (9.1 km) business loop running through downtown Manton. The business loop starts at an interchange with US 131 and M-42 east of downtown Manton in Cedar Creek Township. Bus. US 131 runs concurrently with M-42 for about a mile (1.6 km) westerly into town along a roadway with a travel lane in each direction separated by a center turn lane. At the intersection with Michigan Avenue (Old US 131), M-42 terminates and Bus. US 131 turns northward onto Michigan Avenue. The business loop runs through downtown Manton before exiting the northern end of town. North of Manton, the turn lane is eliminated, and the surrounding landscapes are dominated by farm fields broken by intermittent patches of forest. Bus. US 131 curves northwesterly before returning to a due northward course. As the business loop approaches northern end of the freeway mainline in Liberty Township, it curves northeasterly to meet it at an at-grade intersection.[3][52]

With the completion of the Manton Bypass in 2003, US 131 was rerouted out of downtown Manton. The former route through town was designated Bus. US 131, using M-42 to connect back to the freeway east of town.[50][51]

Major intersections
The entire highway is in Wexford County.

Location mi[1] km Destinations Notes
Cedar Creek Township 0.000 0.000 US 131 – Cadillac, Petoskey
M-42 east – Lake City
Eastern end of M-42 concurrency; exit 191 on US 131
Manton 0.976 1.571 M-42 east – Lake City Western end of M-42 concurrency at western terminus of M-42
Liberty Township 5.667 9.120 US 131 – Cadillac, Petoskey
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

References[edit]

  1. ^ a b c d e f g h i j k l m n o p Michigan Department of Transportation & Michigan Center for Shared Solutions and Technology Partnerships (2009). MDOT Physical Reference Finder Application (Map). Michigan Department of Transportation. Retrieved October 31, 2014. 
  2. ^ a b Westaby, Robb (October 30, 2013). "New US 131 Bypass Opens". Grand Rapids, MI: WXMI-TV. Retrieved October 30, 2013. 
  3. ^ a b c d Michigan Department of Transportation (2015). Pure Michigan: State Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. §§ H9, I9, J9, N9. OCLC 42778335, 900162490. 
  4. ^ Google (September 7, 2015). "Overview Map of Bus. US 131 in Constantine" (Map). Google Maps. Google. Retrieved September 7, 2015. 
  5. ^ Jessup, Kathy (April 20, 2006). "Deal Will Open Door to US 131 Expansion, Funding". Kalamazoo Gazette. OCLC 9940379. Archived from the original on February 5, 2011. Retrieved February 5, 2011. 
  6. ^ Heinlein, Gary (November 18, 2005). "State Road Repairs Put on Fast Track". The Detroit News. p. A1. ISSN 1055-2715. 
  7. ^ Riestma, Jeff (May 21, 2008). "Michigan Department of Transportation Updates US 131 Plans". Kalamazoo Gazette. OCLC 9940379. Archived from the original on February 5, 2011. Retrieved February 5, 2011. 
  8. ^ Vitale, Marty (November 16, 2012). "SCOH Report from Special Committee on U.S. Route Numbering Annual Meeting" (PDF) (Report). Pittsburgh, PA: American Association of State Highway and Transportation Officials. p. 3. Retrieved November 29, 2012. 
  9. ^ Michigan Department of Transportation (2014). Pure Michigan: State Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. § N9. OCLC 42778335, 900162490. 
  10. ^ a b Michigan State Highway Department (April 15, 1953). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § N9. OCLC 12701120. 
  11. ^ a b Michigan State Highway Department (October 1, 1953). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § N9. OCLC 12701120. 
  12. ^ Michigan Department of Transportation (2015). Pure Michigan: State Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. § N9. OCLC 42778335, 900162490. 
  13. ^ Google (September 7, 2015). "Overview Map of Bus. US 131 in Three Rivers" (Map). Google Maps. Google. Retrieved September 7, 2015. 
  14. ^ a b c Michigan State Highway Department (1964). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120, 81213707. 
  15. ^ a b c Michigan State Highway Department (1965). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120. 
  16. ^ Michigan Department of Transportation (2015). Pure Michigan: State Transportation Map (Map). c. 1:221,760. Lansing: Michigan Department of Transportation. Kalamazoo inset. OCLC 42778335, 900162490. 
  17. ^ Google (November 4, 2015). "Overview Map of Bus. US 131 in Kalamazoo" (Map). Google Maps. Google. Retrieved November 4, 2015. 
  18. ^ "Marshall Area Chronology for 1959". Marshall Evening Chronicle. December 31, 1959. pp. 4–5. Retrieved August 21, 2013 – via NewspaperArchive.com. 
  19. ^ Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120, 81552576.  (Includes all changes through July 1, 1960)
  20. ^ Michigan State Highway Department (1961). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120, 51857665.  (Includes all changes through July 1, 1961)
  21. ^ Michigan State Highway Department (1962). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120, 173191490. 
  22. ^ a b Michigan State Highway Department (1963). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Kalamazoo inset. OCLC 12701120. 
  23. ^ Michigan Department of State Highways (1966). Official Highway Map (Map). Scale not given. Lansing: Michigan Department of State Highways. Kalamazoo inset. OCLC 12701120. 
  24. ^ a b c d e Michigan State Highway Department (April 15, 1953). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120. 
  25. ^ a b c d Michigan State Highway Department (October 1, 1953). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120. 
  26. ^ a b Michigan State Highway Department (October 1, 1945). Official Highway Map of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 554645076. 
  27. ^ Michigan State Highway Department (July 1, 1949). Michigan Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120. 
  28. ^ Michigan State Highway Department (April 15, 1950). Michigan Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120. 
  29. ^ Michigan Department of Transportation (2015). Pure Michigan: State Transportation Map (Map). c. 1:221,760. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 42778335, 900162490. 
  30. ^ Google (November 4, 2015). "Overview Map of Bus. US 131 in Grand Rapids" (Map). Google Maps. Google. Retrieved November 4, 2015. 
  31. ^ Michigan State Highway Department (1961). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120, 51857665.  (Includes all changes through July 1, 1961)
  32. ^ a b Michigan State Highway Department (1962). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120, 173191490. 
  33. ^ "Driver's Boon: Int. 296 Opening Finishes City Freeway, Links Kalamazoo, Muskegon". The Grand Rapids Press. December 17, 1962. p. A1. OCLC 9975013. 
  34. ^ Michigan State Highway Department (1963). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Grand Rapids inset. OCLC 12701120. 
  35. ^ Michigan Department of Transportation (1986). Official Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 12701177. 
  36. ^ Michigan Department of Transportation (1987). Official Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 12701177. 
  37. ^ Michigan Department of Transportation (1995). Michigan Department of Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 42778335, 32885070. 
  38. ^ Michigan Department of Transportation (1996). Michigan Department of Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 42778335, 41545375. 
  39. ^ Michigan Department of Transportation (1999). Michigan Department of Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 42778335, 55974644. 
  40. ^ Michigan Department of Transportation (2000). Department of Transportation Map (Map). c. 1:190,080. Lansing: Michigan Department of Transportation. Grand Rapids inset. OCLC 42778335, 62107754. 
  41. ^ a b Michigan Department of Transportation (1983). Official Transportation Map (Map). c. 1:918,720. Lansing: Michigan Department of Transportation. § J9. OCLC 12701177. 
  42. ^ a b Michigan Department of Transportation (1984). Official Transportation Map (Map). c. 1:918,720. Lansing: Michigan Department of Transportation. § J9. OCLC 12701177. 
  43. ^ Google (November 4, 2015). "Overview Map of Bus. US 131 in Big Rapids" (Map). Google Maps. Google. Retrieved November 4, 2015. 
  44. ^ Michigan Department of Transportation (1986). Official Transportation Map (Map). c. 1:918,720. Lansing: Michigan Department of Transportation. § J9. OCLC 12701177. 
  45. ^ Michigan Department of Transportation (1987). Official Transportation Map (Map). c. 1:918,720. Lansing: Michigan Department of Transportation. § J9. OCLC 12701177. 
  46. ^ a b Bornheimer, Hank (October 27, 2001). "Temporary Recreation Trail Ready for Traffic—You Can Walk, Run, Skate or Bike the Cadillac Bypass—until Tuesday". The Grand Rapids Press. p. A1. OCLC 9975013. 
  47. ^ Google (November 4, 2015). "Overview Map of Bus. US 131 in Cadillac" (Map). Google Maps. Google. Retrieved November 4, 2015. 
  48. ^ Heinlein, Gary (February 4, 1999). "State to Spend $6.5B on Roads: Metro Detroit to Get Lion's Share Under Engler's 5-Year Plan". The Detroit News. p. 1A. ISSN 1055-2715. 
  49. ^ Bauza, Margarita (November 15, 2000). "Cadillac Hears Sounds of Silence Thanks to Bypass". The Grand Rapids Press. p. D1. OCLC 9975013. 
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