The

Monroe County, New York Monroe County is a county in the Finger Lakes region of the State of New York. The county is along Lake Ontario's southern shore. At the 2020 census, Monroe County's population was 759,443, an increase since the 2010 census. Its county seat an ...

, Department of Transportation maintains of roads as

county route A county highway (also county road or county route; usually abbreviated CH or CR) is a road in the United States and in the Canadian province of Ontario that is designated and/or maintained by the county highway department. Route numbering can ...

s. Unlike most counties in New York, Monroe County does not post

reassurance marker A reassurance marker or confirming marker is a type of traffic sign that confirms the identity of the route being traveled on. It does not provide information found on other types of road signs, such as distances traveled, distances to other locat ...

s along its county routes. In fact, the only field reference to a route's designation are reference markers posted at bridges and culverts along the highway, which carry the county route number on the second line. Routes that do not cross either type of structure at some point are completely

unsigned Unsigned can refer to: * An unsigned artist is a musical artist or group not attached or signed to a record label ** Unsigned Music Awards, ceremony noting achievements of unsigned artists ** Unsigned band web, online community * Similarly, the c ...

. As a result, county routes in Monroe County are widely known by their road name and not by their number. Route numbers were initially assigned across the county from east to west, beginning at the Wayne County line and generally progressing westward to the Orleans County line. Subsequent routes (those above County Route 238 or CR 238) do not follow this pattern and are located in all areas of the county. As a general rule, east–west routes have designations ending in an odd number while north–south highways carry designations ending in an even number. Several county routes partially or wholly overlap with New York state touring routes, serving as internal designations for county-maintained segments of those routes.

2007 system changes

Several county routes were created, modified, or eliminated following a November 26, 2007, highway maintenance swap between Monroe County and the state of New York. The transaction gave ownership of several county highways to the state, specifically county-maintained sections of New York State Route 19 (NY 19),

NY 31 New York State Route 31 (NY 31) is a state highway that extends for across western and central New York in the United States. The western terminus of the route is at an intersection with NY 104 in the city of Niagara Falls. Its ea ...

, NY 252, NY 259, NY 260, and NY 441, and the county-owned

Colonel Patrick O'Rorke Memorial Bridge The Colonel Patrick O'Rorke Memorial Bridge is a bascule bridge in New York, United States, that connects the Rochester neighborhood of Charlotte to the town of Irondequoit. The bridge, located about north of downtown Rochester, is named for Ci ...

. In return, the county assumed maintenance of five reference routes (NY 940G, NY 941L, NY 941P, NY 942B, and NY 943B), two sections of NY 386, and all of NY 252A and NY 360. All of the county route numbers assigned to the formerly county-owned sections of state routes were eliminated except for CR 236, assigned to a portion of NY 31 on Redman Road west of Brockport, and CR 99, assigned to the O'Rorke Bridge and Pattonwood Drive between the Rochester city line and CR 124. The now-state-owned section of Redman Road split the formerly continuous CR 236 into two segments, while CR 99 was truncated to begin at the east end of the new NY 943F at CR 124. CR 236 was also one of several routes that gained mileage as part of the swap. The highway was extended northward from its previous terminus at the junction of Redman and Church (NY 360) roads to cover two previously state-maintained sections of Redman Road in the far northwestern corner of the county, creating an overlap with part of NY 360 and replacing NY 941P, itself formerly

NY 215 New York State Route 215 (NY 215) is a north–south state highway located entirely within Cortland County, New York, in the United States. It extends for just over from an intersection with NY 392 in the town of Virgil to a juncti ...

. CR 1, previously assigned to the portion of Lake Road east of NY 250, was extended west to the Irondequoit Bay outlet over former NY 941L, once the easternmost segment of

NY 18 New York State Route 18 (NY 18) is an east–west state highway in western New York in the United States. It runs parallel to the south shore of Lake Ontario for most of its length between Niagara County and Monroe County. NY 18, ...

. CR 270 and CR 84 were also extended to cover NY 942B and NY 940G, respectively. Four other routes—CR 119, CR 158, CR 168, and CR 234—were modified to cover now county-owned parts of NY 252A, NY 360, and NY 386 that connected to one of the county route's previous endpoints. Lastly, four additional highways transferred to the county—two sections of NY 386, a piece of NY 360, and NY 943B—received new county route designations.

Routes 1–50

Routes 51–100

Routes 101–150

Routes 151–200

Routes 201–250

Routes 251 and up

References

{{reflist, 2, refs= {{cite web, url=https://www.dot.ny.gov/divisions/engineering/technical-services/hds-respository/NYSDOT_2021_LHI_County_Roads_Monroe_County.pdf, title=County Roads Listing - Monroe County, publisher=

New York State Department of Transportation The New York State Department of Transportation (NYSDOT) is the department of the New York state government responsible for the development and operation of highways, railroads, mass transit systems, ports, waterways and aviation facilities in ...

, access-date=August 13, 2021, date=June 22, 2021 {{cite web , author=

New York State Legislature The New York State Legislature consists of the two houses that act as the state legislature of the U.S. state of New York: The New York State Senate and the New York State Assembly. The Constitution of New York does not designate an official ...

, url=http://public.leginfo.state.ny.us/LAWSSEAF.cgi?QUERYTYPE=LAWS+&QUERYDATA=$$HAY341$$@TXHAY0341+&LIST=LAW+&TARGET=VIEW , title=New York State Highway Law § 341 , accessdate=March 6, 2012 {{cite map , title=New York and New Jersey Tourgide Map , publisher= Gulf Oil Company , cartography=

Rand McNally and Company Rand McNally is an American technology and publishing company that provides mapping, software and hardware for consumer electronics, commercial transportation and education markets. The company is headquartered in Chicago, with a distribution c ...

, year=1972 , edition=1972 {{cite web , title=Monroe County Highway Road Inventory , url=http://www.monroecounty.gov/Image/dot-MCHighwaySystemList.pdf , publisher=Monroe County Department of Transportation , accessdate=March 6, 2012 , date=February 4, 2010 {{cite book , url=https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/repository/tour_route_0.pdf , title=Official Description of Highway Touring Routes, Scenic Byways, & Bicycle Routes in New York State , author=

, date=October 2004 , accessdate=March 6, 2012 {{cite map , title= I Love New York Tourism Map , publisher= State of New York , cartography=Rand McNally and Company , year=1981 {{cite book, url=https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/repository/2012%20tour-bk.pdf , title=Official Description of Highway Touring Routes, Bicycling Touring Routes, Scenic Byways, & Commemorative/Memorial Designations in New York State , author=New York State Department of Transportation , date=January 2012 , accessdate=March 6, 2012 , url-status=dead , archiveurl=https://web.archive.org/web/20130729075940/https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/repository/2012%20tour-bk.pdf , archivedate=July 29, 2013 {{cite map , title=New York , publisher=

Esso Esso () is a trading name for ExxonMobil. Originally, the name was primarily used by its predecessor Standard Oil of New Jersey after the breakup of the original Standard Oil company in 1911. The company adopted the name "Esso" (the phonetic p ...

, year=1968 , edition=1969–70 , cartography=

General Drafting General Drafting Corporation of Convent Station, New Jersey, founded by Otto G. Lindberg in 1909, was one of the "Big Three" road map publishers in the United States from 1930 to 1970, along with H.M. Gousha and Rand McNally.General Drafting Co., ...

{{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=n15 , title=Hamlin Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=n19 , title=Ninemile Point Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=o19 , title=Webster Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=p17 , title=West Henrietta Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=o17 , title=Rochester West Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map , title=New York , publisher=

Exxon ExxonMobil Corporation (commonly shortened to Exxon) is an American multinational oil and gas corporation headquartered in Irving, Texas. It is the largest direct descendant of John D. Rockefeller's Standard Oil, and was formed on November 30, ...

, year=1977 , edition=1977–78 , cartography=General Drafting {{cite map , title=New York with Special Maps of Putnam–Rockland–Westchester Counties and Finger Lakes Region , publisher=Esso , cartography=General Drafting , edition=1958 , year=1958 {{cite map , title=New York with Sight-Seeing Guide , publisher=Esso , cartography=General Drafting , year=1962 , edition=1962 {{cite map , publisher=

DeLorme Mapping DeLorme is the producer of personal satellite tracking, messaging, and navigation technology. The company’s main product, ''inReach'', integrates GPS and satellite technologies. ''inReach'' provides the ability to send and receive text messages ...

, title=Upstate New York City Street Maps , edition=1st , year=1990 , cartography=DeLorme Mapping , scale=1" = 0.5 mile , page=3 , isbn=0-89933-300-1 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=o18 , title=Rochester East Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite web , last=Perry , first=N.W. , title=Monroe County Roads , url=http://www.empirestateroads.com/cr/crmonroe.html , work=Empire State Roads , accessdate=March 6, 2012 , date=July 12, 2011 {{cite map , url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=n16 , title=Hilton Digital Raster Quadrangle , publisher=New York State Department of Transportation , year=1997 , scale=1:24,000 , accessdate=March 6, 2012 {{cite map, url=http://gis.ny.gov/gisdata/quads/drg24/dotpreview/index.cfm?code=p16, title=Clifton Digital Raster Quadrangle, publisher=New York State Department of Transportation, year=1997, scale=1:24,000, accessdate=May 19, 2021