Wikipedia:WikiProject U.S. Roads/Maryland/Resources

This page contains a list of resources used to research and support information in Maryland state highway articles.

Highway Location Reference

The Maryland State Highway Administration produces a Highway Location Reference (HLR) for each county annually since 1999. Each HLR contains a stylized map showing highways in that county, a list changes in state highways that occurred in that county during the year of the HLR, a list of routes that are part of the National Highway System, and detailed, mileposted information about intersections, bridges, road widths and lane sections, maintenance jurisdiction, and for all Interstate, U.S., and Maryland state-numbered highways with that county.

Highway Location Reference at the MDSHA website

The table below contains links to every HLR published on the MDSHA website from 1999 onwards. The HLRs should be used to source and reference all mileage numbers in Maryland state highway articles. The HLRs are also very useful in writing the Route description and Junction list of an article. Whenever you update an article, please check to make sure the most recent HLR is being referenced.

Reference citations

{{Maryland HLR}} can be used to create citations to the HLR for one or multiple counties. Make sure to surround the template with <ref> tags and to enter a year and access date in addition to the specific county or counties.

HLR List

1999 Highway Location Reference data as of December 31, 1999

2000 Highway Location Reference data as of December 31, 2000

2001 Highway Location Reference data as of December 31, 2001

2002 Highway Location Reference data as of December 31, 2002

2003 Highway Location Reference data as of December 31, 2003

2004 Highway Location Reference data as of December 31, 2004

2005 Highway Location Reference data as of December 31, 2005

2006 Highway Location Reference data as of December 31, 2006

2007 Highway Location Reference data as of December 31, 2007

2008 Highway Location Reference data as of December 31, 2008

2009 Highway Location Reference data as of December 31, 2009

2010 Highway Location Reference data as of December 31, 2010

2011 Highway Location Reference data as of December 31, 2011

2012 Highway Location Reference data as of December 31, 2012

2013 Highway Location Reference data as of December 31, 2013

2014 Highway Location Reference data as of December 31, 2014

2015 Highway Location Reference data as of December 31, 2015

2016 Highway Location Reference data as of December 31, 2016

2018 Highway Location Reference data as of December 31, 2018

2019 Highway Location Reference data as of December 31, 2019

2020 Highway Location Reference data as of December 31, 2020

2021 Highway Location Reference data as of December 31, 2021

2022 Highway Location Reference data as of December 31, 2022

Maryland General Highway Statewide Grid Map

These maps, set at a scale of 1:12000, are the preferred two-dimensional resources for writing Route descriptions. They should be used in conjunction with the Highway Location Reference to write and support the Route description section of articles.

The following link leads to a map that allows selection by county. Within each of the county pages, there are links to the grid maps that cover the particular county.

Maryland General Highway Statewide Grid Map

Reference citations

{{Maryland grid map}} can be used to create citations to the current grid map. Make sure to surround the template with <ref> tags and enter grid section numbers.

Official state highway maps

The Maryland State Archives maintains as part of its Special Collections a State Highway Administration Map Collection. Series 2 of this special collection, referenced as MSA SC 4409, is a set of 68 maps that have been scanned and are available online. All maps are stored as PDF files and are password protected. Username is aaco and password is aaco#.

MSA SC 4409 Collection Inventory

Included below are links to the information pages for each document. Maps may be accessed for downloading on their information pages. Notes are included with some maps explaining other relevant information about the map that could be useful.

Reference citations

{{Maryland road map}} can be used to create citations to the maps. Make sure to surround the template with <ref> tags and enter a year.

Map List

Maryland State Highway and Transportation Maps

State Roads Commission reports

The Internet Archive contains a set of reports of the Maryland State Roads Commission, the predecessor agency of the Maryland State Highway Administration. These reports, which were scanned and uploaded in August 2009 by the University of Maryland, College Park, contain information about the processes and works of the SRC for a particular set of years. The reports are very helpful to determine when particular roads and bridges were constructed and understanding the context surrounding their planning and construction.

Reports of the State Roads Commission of Maryland at the Internet Archive

Included below are links to the information pages for each report. Reports may be downloaded in a variety of formats or read online. Next to the links are reference citation templates for each report to use in Wikipedia articles when referencing a particular report. Reference names include the final year addressed in a particular report. Finally, notes are included with many reports explaining other relevant information about the report that could be useful. When referencing these reports, be sure to add in the page or pages referenced and the date accessed in the citation template.

Reference citations

{{Maryland SRC report}} can be used to create citations to the SRC reports. Make sure to surround the template with <ref> tags and to enter a year, page numbers, and access date.

Report List

1908–1911: Annual Reports of the State Roads Commission of Maryland
1912–1915: Annual Reports of the State Roads Commission of Maryland
1916–1919: Annual Reports of the State Roads Commission of Maryland
1920–1923: Annual Reports of the State Roads Commission of Maryland NEW!!!
1924–1926: Annual Reports of the State Roads Commission of Maryland
1927–1930: Report of the State Roads Commission of Maryland
1931–1934: Report of the State Roads Commission of Maryland
1935–1936: Report of the State Roads Commission of Maryland
1937–1938: Report of the State Roads Commission of Maryland
1939–1940: Report of the State Roads Commission of Maryland
1941–1942: Report of the State Roads Commission of Maryland
1943–1944: Report of the State Roads Commission of Maryland
1945–1946: Report of the State Roads Commission of Maryland
1947–1948: Report of the State Roads Commission of Maryland
1949–1950: Report of the State Roads Commission of Maryland
1951–1952: Report of the State Roads Commission of Maryland
1953–1954: Report of the State Roads Commission of Maryland
1955–1956: Report of the State Roads Commission of Maryland
1957–1958: Report of the State Roads Commission of Maryland

Construction Contract Log

These documents are spreadsheets listing construction projects in each county, including their start and end dates, from the 1940s to the 2000s. The first document also features a list of road opening dates, a list of divided or controlled-access highways as of 1960, and fact sheets on the Chesapeake Bay Bridge and Baltimore Harbor Tunnel. The first (1947–1984) and third (1983–2006) documents together feature the whole range, but the split varies between 1966 and 1984 depending on the county. The second document is entirely redundant with the other two.

Construction Contract Log documents at the Maryland Archives

Reference citations

This resource is not yet deployed. Reference citation will be determined later.

State Meeting Minutes and Memoranda of Action

This series of documents is a compilation of various letters, memoranda, meeting minutes, and other documents that concern transfers of road section maintenance, from the state to a county or municipality and vice versa. There are documents for each county and for Baltimore City.

State Roads Commission Meeting Minutes & Memoranda of Action at the Maryland State Archives

Reference citations

{{Maryland road memo}} can be used to create citations to specific documents. Be sure to include the document title, document date, and the two-digit key that refers to each document collection; see the template documentation for further instructions.

Newspapers

Baltimore Sun (libraries, Newspapers.com - Publishers Extra required after 1922, NewspaperArchive before 1913)
Cumberland Evening Times (libraries, Newspapers.com - Publishers Extra not required but some years missing, NewspaperArchive)
Annapolis Gazette (libraries, Newspaperarchive before 1970s)

Official websites

Maryland State Highway Administration: The agency that maintains the vast majority of state highways in Maryland.
Maryland Transportation Authority: The agency that maintains toll roads and bridges in Maryland.
GIS data
Printed GIS documents

Unofficial websites

Although these websites are informative and good for personal edification and context, do not cite the pages on these websites as references. They can be used in the External Links section of articles.

MDRoads: Mike Pruett maintains the most comprehensive unofficial website devoted specifically to Maryland highways.
dcroads.net: Part of the Steve Anderson empire, this website describes many of the major highways in Maryland as well as Virginia and the District of Columbia.
Roads to the Future: Scott Kozel's website describes many of the major highways in Maryland as well as Virginia and the District of Columbia.
AARoads Maryland Gateway: Created by Alex Nitzman, Andy Field, and others, these pages contain photo tours of most of the major highways in Maryland and some of the less major ones.
Flickr: Dougtone's Photostream Collection: Maryland: Doug Kerr has 170 sets of photos of Maryland highways in his collection.