{{Short description|State highway in King County, Washington, US}} {{Use American English|date=May 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road |state=WA |type=SR |route=516 |spur_type=I |spur_of=5 |section=710 |map=Washington State Route 516.svg |map_notes=SR 516 highlighted in red |length_mi=16.49 |length_round=2 |length_ref=<ref name="log">{{WSDOT State Highway Log |year=2012 |pages=1586–1598 |link=yes |access-date=February 23, 2013}}</ref> |established=1964<ref name="RCW">{{cite web |url=http://apps.leg.wa.gov/RCW/default.aspx?cite=47.17.710 |title=47.17.710: State route No. 516 |year=1970 |work=Revised Code of Washington |publisher=Washington State Legislature |access-date=February 23, 2013}}</ref> |direction_a=West |terminus_a={{jct|state=WA|SR|509}} in Des Moines |junction={{plainlist| *{{jct|state=WA|SR|99|SR|509}} in Kent *{{jct|state=WA|I|5}} in Kent *{{jct|state=WA|SR|167}} in Kent *{{jct|state=WA|SR|515}} in Kent *{{jct|state=WA|SR|18}} in Covington }} |direction_b=East |terminus_b={{jct|state=WA|SR|169}} in Maple Valley |county=King |previous_type=SR |previous_route=515 |next_type=SR |next_route=518 }}
'''State Route 516''' ('''SR 516''') is a {{convert|16.49|mi|km|adj=mid|-long}} state highway in the U.S. state of Washington, serving communities in southern King County. The highway travels east as the Kent-Des Moines Road and the Kent-Kangley Road from a concurrency with SR 509 in Des Moines through Kent and Covington to an intersection with SR 169 in Maple Valley. SR 516, designated as part of the National Highway System within Kent, intersects three major freeways in the area: Interstate 5 (I-5) in western Kent, SR 167 in downtown Kent, and SR 18 in Covington. The roadway, built in the 1890s, was codified in 1937 as Secondary State Highway 1K (SSH 1K) from Des Moines to Kent and SSH 5A from Kent to Maple Valley. The two highways were combined during the 1964 highway renumbering to form SR 516 on its current route.
==Route description== [[File:I-5 south at WA-516, Kent.jpg|thumb|left|I-5 southbound approaching its interchange with SR 516 in Kent.]]
SR 516 begins in Des Moines at Marine View Drive as SR 509 turns north towards Burien near the East Passage of Puget Sound. The two concurrent highways travel east on the Kent-Des Moines Road past Highline Community College and Mount Rainier High School to an intersection with SR 99 in western Kent, where SR 509 turns south towards Tacoma. SR 516 then intersects I-5 at a partial cloverleaf interchange and continues east onto a four-lane divided highway over the Green River and its pedestrian and bicycle trail into downtown Kent.<ref name="int5">{{cite web |date=October 19, 2010 |title=SR 5 - Exit 149: Junction SR 516 |publisher=Washington State Department of Transportation |url=http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR005/005X149.pdf |access-date=February 23, 2013}}</ref><ref name="bike-map2010">{{cite map |publisher=King County |year=2010 |title=Bicycling in King County |url=http://your.kingcounty.gov/kcdot/roads/wcms/bike/BikeMapSouth2010.pdf |format=PDF |access-date=February 23, 2013 |archive-date=March 5, 2012 |archive-url=https://web.archive.org/web/20120305024455/http://your.kingcounty.gov/kcdot/roads/wcms/bike/BikeMapSouth2010.pdf |url-status=dead }}</ref> The highway serves as the southern terminus of SR 181 before intersecting SR 167 in a diamond interchange at the western edge of downtown Kent.<ref name="int167">{{cite web |date=August 3, 2011 |title=SR 167: Junction SR 516/Willis St |publisher=Washington State Department of Transportation |url=http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR167/167X019.pdf |access-date=February 23, 2013}}</ref> SR 516 shifts south onto Willis Street and crosses the Interurban Trail and a BNSF rail line before turning north onto Central Avenue and east onto Smith Street near Kent Station.<ref name="bike-map2010"/><ref name="rail-2012">{{cite map |publisher=Washington State Department of Transportation |title=2011 Washington State Rail System |date=January 2012 |url=http://wsdot.wa.gov/NR/rdonlyres/FDBE2AB4-E504-4AC5-9E30-6A2CC4FAAD34/0/2011Ownership.pdf |format=PDF |access-date=February 23, 2013}}</ref> The highway travels southeast along Mill Creek onto the Kent-Kangley Road and serves as the southern terminus of SR 515 at Kent-Meridian High School before leaving Kent for Covington. SR 516 passes Lake Meridian as 272nd Street and intersects SR 18 at a diamond interchange located in Covington.<ref name="int18">{{cite web |date=September 21, 2004 |title=SR 18: Junction SR 516 |publisher=Washington State Department of Transportation |url=http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR018/018X011.pdf |access-date=February 23, 2013}}</ref> The highway continues east past Pipe Lake and into Maple Valley before crossing the Cedar to Green River Trail and ending at an intersection with SR 169.<ref name="log"/><ref name="bike-map2010"/><ref name="google">{{google maps |title=State Route 516 |url=https://maps.google.com/maps?saddr=S+Kent+Des+Moines+Rd&daddr=47.3915903,-122.2907944+to:SE+Kent+Kangley+Rd&hl=en&ll=47.34266,-122.172355&spn=0.124462,0.338173&sll=47.360979,-122.021129&sspn=0.001944,0.005284&geocode=FZU40wIdvHy1-A%3BFWYj0wIdlv21-CmlNnKBuVuQVDGm6fvgW0y7cQ%3BFYat0gIdvRu6-A&mra=me&mrsp=1,0&sz=18&t=m&z=12&via=1 |access-date=February 23, 2013}}</ref>
Every year, the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of annual average daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that the busiest section of the highway was between SR 181 and the SR 167 interchange, serving 38,000 vehicles, while the least busiest section was its western terminus at SR 509, serving 8,900 vehicles.<ref name="ATR">{{cite web |author=Staff |year=2011 |title=2011 Annual Traffic Report |publisher=Washington State Department of Transportation |url=http://www.wsdot.wa.gov/mapsdata/travel/pdf/Annual_Traffic_Report_2011.pdf |pages=194–195 |access-date=February 23, 2013 |archive-date=June 13, 2013 |archive-url=https://web.archive.org/web/20130613043942/http://www.wsdot.wa.gov/mapsdata/travel/pdf/Annual_Traffic_Report_2011.pdf |url-status=dead }}</ref> SR 516 between I-5 and SR 167 within western Kent is designated as part of the National Highway System,<ref name="NHS">{{cite map |publisher=Federal Highway Administration |title=National Highway System: Seattle, WA |url=https://www.fhwa.dot.gov/planning/national_highway_system/nhs_maps/washington/seattle_wa.pdf |date=October 1, 2012 |access-date=February 23, 2013}}</ref> which includes roadways important to the national economy, defense, and mobility.<ref name="NHS-about">{{cite web |title=What is the National Highway System? |url=https://www.fhwa.dot.gov/planning/national_highway_system/ |publisher=Federal Highway Administration |date=September 26, 2012 |access-date=February 23, 2013}}</ref>
==History==
The Kent-Kangley Road was built as a wagon road by King County by the late 1890s and was upgraded to a paved highway after being codified as two highways during the creation of the primary and secondary state highways system in 1937: SSH 1K and SSH 5A.<ref name="usgs-1900">{{cite map |publisher=United States Geological Survey |title=Washington: Tacoma Quadrangle |date=March 1900 |url=http://www.lib.utexas.edu/maps/topo/washington/txu-pclmaps-topo-wa-tacoma-1895.jpg |scale=1:250,000 |format=JPG |access-date=February 24, 2013}}</ref><ref name="law1937">{{cite book |author=Washington State Legislature |title=Session Laws of the State of Washington |edition=1937 |date=March 18, 1937 |access-date=February 24, 2013 |url=https://books.google.com/books?id=dcQ4AAAAIAAJ |publisher=Washington State Legislature |location=Olympia, Washington |chapter=Chapter 207: Classification of Public Highways |pages=996, 1002}}</ref> SSH 1K traveled {{convert|12.76|mi|km|2}} south from U.S. Route 99 and Primary State Highway 1 (PSH 1) through Burien and east through Des Moines to US 99 and PSH 1 in Midway. SSH 5A traveled {{convert|14.50|mi|km|2}} east from US 99 and PSH 1 in Midway across the Green River into Kent, intersecting SSH 5M, PSH 5, and SSH 5C, before ending at the Enumclaw–Renton branch of PSH 5 in Maple Valley.<ref name="ATR-1960">{{cite web |author=Staff |year=1960 |title=Annual Traffic Report, 1960 |publisher=Washington State Highway Commission, Department of Highways |url=http://www.wsdot.wa.gov/mapsdata/travel/pdf/1960_ATR.pdf |pages=156, 181–182 |access-date=February 23, 2013 |archive-date=March 13, 2011 |archive-url=https://web.archive.org/web/20110313165044/http://www.wsdot.wa.gov/mapsdata/travel/pdf/1960_ATR.pdf |url-status=dead }}</ref><ref name="usgs-1958">{{cite map |publisher=United States Geological Survey |title=Seattle, 1958 |year=1958 |url=http://www.lib.utexas.edu/maps/topo/250k/txu-pclmaps-topo-us-seattle-1958.jpg |scale=1:250,000 |format=JPG |access-date=February 24, 2013}}</ref> The two highways were combined during the 1964 highway renumbering to form SR 516 and codified into law in 1970.<ref name="RCW"/><ref name="sr">{{cite web |last=Prahl |first=C. G. |title=Identification of State Highways |url=https://www.wsdot.wa.gov/sites/default/files/2005/04/26/Identification-of-state-highways.pdf |publisher=Washington State Highway Commission, Department of Highways |date=December 1, 1965 |access-date=February 23, 2013 |archive-date=February 17, 2017 |archive-url=https://web.archive.org/web/20170217112902/https://www.wsdot.wa.gov/NR/rdonlyres/6836215D-E301-43F3-895A-472BD2FDE86A/0/Identification.pdf |url-status=dead }}</ref> The highway traveled east from SR 509 in Des Moines through I-5 at Midway, SR 167 in Kent, and SR 18 in Covington to SR 169 in Maple Valley.<ref name="usgs-1965">{{cite map |publisher=United States Geological Survey |title=Seattle, 1965 |year=1965 |url=http://www.lib.utexas.edu/maps/topo/250k/txu-pclmaps-topo-us-seattle-1965.jpg |scale=1:250,000 |format=JPG |access-date=February 24, 2013}}</ref> SR 509 was re-aligned in 1991 onto SR 516 and SR 99, forming new concurrencies, until the completion of a new north–south freeway.<ref name="RCW-509">{{cite web |url=http://apps.leg.wa.gov/RCW/default.aspx?cite=47.17.680 |title=47.17.680: State route No. 509 |orig-year=1970 |year=1991 |edition= |work=Revised Code of Washington |publisher=Washington State Legislature |access-date=February 24, 2013}}</ref><ref name="wsdot2011/12-map">{{cite map |publisher=Washington State Department of Transportation |title=Washington State Highways, 2011–2012 |year=2011 |url=http://www.wsdot.wa.gov/NR/rdonlyres/14A6187A-B266-4340-A351-D668F89AC231/0/TouristMapFront_withHillshade.pdf |format=PDF |scale=1:842,000 |access-date=February 24, 2013 |archive-date=July 26, 2012 |archive-url=https://web.archive.org/web/20120726042334/http://www.wsdot.wa.gov/NR/rdonlyres/14A6187A-B266-4340-A351-D668F89AC231/0/TouristMapFront_withHillshade.pdf |url-status=dead }}</ref>
==Major intersections== [[File:I-5 and WA-516 interchange aerial.jpg|thumb|right|An aerial view of Des Moines and Kent looking east as SR 516 intersects SR 99 and I-5]] {{WAinttop|county=King|length_ref=<ref name="log"/>}} {{WAint |location=Des Moines |mile=0.00 |road={{jct|state=WA|SR|509|name1=Marine View Drive|dir1=north|city1=Burien}} |type=concur |notes=Western terminus, west end of SR 509 overlap}} {{WAint |location=Kent |lspan=5 |mile=1.79 |road={{jct|state=WA|SR|99|name1=Pacific Highway|SR|509|dir2=south|city1=Federal Way|city2=SeaTac}} |type=concur |notes=East end of SR 509 overlap}} {{WAint |mile=2.02 |road={{jct|state=WA|I|5|city1=Seattle|location2=Portland}} |notes=Interchange}} {{WAint |mile=4.79 |road={{jct|state=WA|SR|181|name1=Valley Highway|dir1=north}} |notes=}} {{WAint |mile=4.92 |road={{jct|state=WA|SR|167|city1=Renton|city2=Auburn}} |notes=Interchange}} {{WAint |mile=7.61 |road={{jct|state=WA|SR|515|name1=104th Avenue|dir1=north}} |notes=}} {{WAint |location=Covington |mile=11.73 |road={{jct|state=WA|SR|18|city1=Auburn|city2=North Bend}} |notes=Interchange}} {{WAint |location=Maple Valley |mile=16.49 |road={{jct|state=WA|SR|169|city1=Renton|city2=Enumclaw}} |notes=Eastern terminus}} {{Jctbtm|keys=concur}}
==References== {{reflist}}
==External links== {{AttachedKML|display=title,inline}}
*[https://www.angelfire.com/wa2/hwysofwastate/sr516.html Highways of Washington State]
{{State highways in Washington related to I-5}} {{Authority control}} {{Good article}}
516 Category:Transportation in King County, Washington