Indiana State Road 312

State Road 312
Route information
	Maintained by INDOT
Length	3.042 mi[1] (4.896 km)
Major junctions
West end	Chicago Avenue & White Oak Avenue at Hammond–East Chicago city line
East end	SR 912 / US 12 in East Chicago
Location
Counties	Lake
Highway system

State Road 312 in the U.S. state of Indiana is an east–west state highway in the northwestern part of the state.

Route description

SR 312 heads east from the Illinois state line, as a two-lane highway passing through residential properties. This section is concurrent with Gostlin Street in Hammond. The route turns due south onto Sheffield Avenue and has an at-grade crossing with four sets of Norfolk Southern railroad tracks. After the tracks the highway turns due onto Chicago Avenue and passes through residential properties as a two-lane urban roadway. At Calumet Avenue the roadway becomes a four-lane undivided highway passing through a mix of commercial and residential properties. The route passes under the Indiana Toll Road and enters a mostly commercial area, having an intersection with U.S. Route 20 (US 20). The highway crosses over the Indiana Ship Canal and passes between industrial properties. SR 312 eastern terminus is at an interchange with US 12 and SR 912. Chicago Avenue heads east of US 12 and SR 912 as a city street. The street passes through more industrial properties and ends at Industrial Highway, formerly US 12.[2][3][4]

No part of SR 312 is included as a part of the National Highway System (NHS).[5] The NHS is a network of highways that are identified as being most important for the economy, mobility and defense of the nation.[6] The highway is maintained by the Indiana Department of Transportation (INDOT) like all other state roads in the state. The department tracks the traffic volumes along all state highways as a part of its maintenance responsibilities using a metric called average annual daily traffic (AADT). This measurement is a calculation of the traffic level along a segment of roadway for any average day of the year. In 2010, INDOT figured that lowest traffic levels were the 5,400 vehicles and 260 commercial vehicles used the highway daily on a section that is concurrent with Sheffield Avenue. The peak traffic volumes were 15,310 vehicles and 1,090 commercial vehicles AADT along a section of SR 312 between the Indiana Toll Road and US 20.[7]

Major intersections

The entire route is in Lake County.

Location	mi[1]	km	Destinations	Notes
Hammond–East Chicago city line	0.000	0.000	Chicago Avenue White Oak Avenue	Roadway continues west as Chicago Avenue
East Chicago	0.498	0.801	US 20 (Indianapolis Boulevard)
East Chicago–Gary city line	3.042	4.896	SR 912 / US 12 / LMCT (Cline Avenue)	Eastern terminus of SR 312
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Indiana Department of Transportation (July 2015). Reference Post Book (PDF). Indianapolis: Indiana Department of Transportation. Retrieved October 3, 2016.
Google (December 18, 2012). "Indiana State Road 312" (Map). Google Maps. Google. Retrieved December 18, 2012.
Indiana Department of Transportation (2012). Indiana Transportation Map (PDF) (Map) (2011–2012 ed.). 1:550,000. Indianapolis: Indiana Department of Transportation. OCLC 765461296. Retrieved December 18, 2012.
Indiana Department of Transportation (August 23, 2011). Indiana Railroad Map (PDF) (Map). 1:633,600. Indianapolis: Indiana Department of Transportation. Retrieved December 18, 2012.
Federal Highway Administration (December 2003). National Highway System: Indiana (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved December 18, 2012.
Natzke, Stefan; Neathery, Mike; Adderly, Kevin (September 26, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Retrieved December 18, 2012.
Indiana Department of Transportation (2010). "Indiana Traffic Counts". Indianapolis: Indiana Department of Transportation. Retrieved September 15, 2012.

External links

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[indot-1] Indiana Department of Transportation (July 2015). Reference Post Book (PDF). Indianapolis: Indiana Department of Transportation. Retrieved October 3, 2016.

[google_maps-2] Google (December 18, 2012). "Indiana State Road 312" (Map). Google Maps. Google. Retrieved December 18, 2012.

[INDOT_2012-3] Indiana Department of Transportation (2012). Indiana Transportation Map (PDF) (Map) (2011–2012 ed.). 1:550,000. Indianapolis: Indiana Department of Transportation. OCLC 765461296. Retrieved December 18, 2012.

[RR_Map-4] Indiana Department of Transportation (August 23, 2011). Indiana Railroad Map (PDF) (Map). 1:633,600. Indianapolis: Indiana Department of Transportation. Retrieved December 18, 2012.

[NHS_Map_of_Indiana-5] Federal Highway Administration (December 2003). National Highway System: Indiana (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved December 18, 2012.

[NHS-6] Natzke, Stefan; Neathery, Mike; Adderly, Kevin (September 26, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Retrieved December 18, 2012.

[AADT-7] Indiana Department of Transportation (2010). "Indiana Traffic Counts". Indianapolis: Indiana Department of Transportation. Retrieved September 15, 2012.