Minnesota State Highway 51

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Trunk Highway 51 marker

Trunk Highway 51
Snelling Avenue
Route information
Maintained by MnDOT
Length11.274 mi[2] (18.144 km)
Major junctions
South end MN 5 in St. Paul
  I-94 in St. Paul
MN 36 in Roseville
North end I-694 / US 10 in Arden Hills
Highway system
  • Minnesota Trunk Highways
MN 50US 52

Minnesota State Highway 51 (MN 51) is a highway in Minnesota, which runs from its intersection with State Highway 5 (W. 7th Street) in Saint Paul and continues north to its northern terminus at its interchange with Interstate 694 / U.S. Highway 10 in Arden Hills. The route is 11 miles (18 km) in length.

Highway 51 is also known as Snelling Avenue for most of its route. A small section of the route is known as Montreal Avenue in the "West Seventh" and Highland neighborhoods of Saint Paul, and the northern section in Arden Hills is known as Hamline Avenue.

Route description[edit]

State Highway 51 serves as a north–south route between Saint Paul, Falcon Heights, Roseville, and Arden Hills in Ramsey County.

It is not to be confused with nearby Ramsey County Road 51 (Lexington Avenue / Parkway), which runs parallel to State Highway 51 and ends at the same southern terminus intersection.

Highway 51 begins at its intersection with State Highway 5 (W. 7th Street) in the "West Seventh" neighborhood of Saint Paul. 51 follows Montreal Avenue for 10 blocks. 51 then leaves Montreal Avenue and turns north on Snelling Avenue. Highway 51 remains on Snelling Avenue for the remainder of its route. It continues through the Highland Park / MacGroveland / Merriam Park areas to its junction with Interstate 94. The route then continues through the Midway neighborhood. After crossing over two railroad lines and entering Falcon Heights, the route passes along the east side of the Minnesota State Fairgrounds, making it a busy thoroughfare during the State Fair season. The route continues north into Roseville and Arden Hills. Most of Highway 51's length through Roseville and Arden Hills is an expressway (divided highway) with signalized intersections. Highway 51 does have an interchange with State Highway 36 in Roseville. The northern terminus of Highway 51 at I-694 in Arden Hills is also shared with the westbound interchange for U.S. Highway 10.

From south to north, the route adjoins the campuses of Macalester College, Hamline University, University of Northwestern - Saint Paul, and Bethel University.

Como Park, Zoo, and Conservatory in Saint Paul is located 7 blocks east of the junction of Highway 51 (Snelling Avenue) and Como Avenue. Eastbound Como Avenue becomes Horton Avenue. The park entrance is on Horton Avenue near Lexington Parkway.

Rosedale Center and Har Mar Mall shopping centers are located on the route in Roseville.

Highway 51 parallels State Highway 280 through Falcon Heights and the Midway neighborhood of Saint Paul.


State Highway 51 was authorized in 1933.

The route was paved by 1935.

The original alignment on the south end of Highway 51 was from West 7th Street up Edgecumbe Road to Snelling Avenue. This section of Highway 51 was later rerouted to Montreal Avenue.

From 1934 to 1935, the north end of Highway 51 previously followed Snelling Avenue northbound to County Road B in Roseville, then 51 turned westbound to Fairview Avenue and ran northbound along Fairview Avenue and New Brighton Road to old U.S. Highway 8 in New Brighton.

By 1935, Snelling Avenue was extended north to the point where Highway 51 now bends to follow Hamline Avenue after crossing the Roseville / Arden Hills boundary line. The northern terminus of the route was at old U.S. Highway 10, which is the present day junction of Snelling Avenue and County Road E in Arden Hills. There was a plan until the 1970s to extend Highway 51 beyond its current northern terminus at I-694 in Arden Hills to proceed north to I-35W near Lexington Avenue in Blaine.

The section of Highway 51 in Roseville and Arden Hills was built as a divided highway by 1970.

Major intersections[edit]

The entire route is in Ramsey County.

St. Paul0.0000.000 MN 5 (West Seventh Street)
0.0070.011 CR 51 (Lexington Parkway)
1.2482.008 CR 42 (Ford Parkway)
1.8733.014 CR 38 (Randolph Avenue)
3.3555.399 CR 35 (Marshall Avenue)
3.5465.707 I-94 eastbound, via Concordia Avenue
3.6055.802 I-94 westbound, via St. Anthony Avenue
3.8506.196 CR 34 (University Avenue)
CR 33 (Pierce Butler Route)Interchange
CR 32 (Energy Park Drive)Interchange
CR 31 east / CR 75 west (Como Avenue)
Falcon Heights6.350–
CR 30 (Larpenteur Avenue)
CR 25 (County Road B)
MN 36Interchange
CR 78 (County Road B2)Interchange
CR 23 (County Road C2)
Arden Hills9.60115.451 CR 50 (Hamline Avenue)
CR 15 (County Road E)Interchange, Old U.S. 10
11.24518.097 I-694 / US 10 westboundInterchange. I-694 exit 42A.
11.29518.178 CR 50 north (Hamline Avenue)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map:

KML is from Wikidata
  1. ^ Riner, Steve. "Details of Routes 51-75". The Unofficial Minnesota Highways Page. Retrieved 2006-04-06.
  2. ^ a b "Trunk Highway Log Point Listing - Construction District 5" (PDF). Minnesota Department of Transportation. August 20, 2010. Archived from the original (PDF) on June 27, 2011. Retrieved October 22, 2010.