consists roads state delaware maintained system includes portions united_states numbered highways system located state state routes roads maintained roads maintained state assigned maintenance road number reference number marked little white markers intersections auxiliary plates warning signs approaching intersections numbers unique specific county roads designated multiple road numbers numbers necessarily correspond signed interstate state route numbers maintains total miles roads comprising percent roads state large bridges state maintained agencies including roads system include freeways surface divided highways lane undivided roads serving urban suburban rural areas roads maintained toll roads motorists pay use roads delaware native american trails roads laid colonial swedish english settlers time counties responsible roads 19th century private companies operated wilmington proposed modern road run north south length state road evolved completed state formed april construct state highway system delaware numbered routes came creation state route numbers appeared years later state took remaining county roads middle 20th century major roads widened divided highways creation led construction miles freeway northern including limited access toll road dover wilmington fully completed largest public works project state history numbering interstate routes interstate highways delaware numbered according national numbering pattern run north south odd numbers increasing west east run east west numbers increasing south north major north south numbers ending major east west numbers ending digit begin odd numbers spur number bypass repeat numbers different states major north south interstate east_coast interstate passes northern bypasses section runs city wilmington routes run north south odd numbers increasing east west run east west numbers increasing north south major north south routes numbers ending major east west numbers ending digit serve branches parent route runs north south entire length delaware major running utah new_jersey passes east west northern serves branch southern state exception numbering pattern runs east west route runs north south new_jersey new_york state routes state routes delaware signed default circular route marker consists black numbers white circle rectangular black background routes largely assigned pattern similar interstate routes odd numbered routes generally run north south numbered routes generally run east west grid pattern exists low numbered east west state routes increases north south starting northern delaware continuing south southern state pattern low numbered north south routes beginning east continuing west routes delaware numbered maryland pennsylvania state routes regard odd pattern examples include southern continuation eastern continuation connected route new_jersey ferry digit state routes routes maryland pennsylvania exception lowest numbered state route highest numbered route unlike states delaware prohibit route numbers different systems examples state routes delaware exists located kent new castle counties passes wilmington area northern heading south interchange concord avenue city wilmington signed alignment maintenance road numbers road maintained including interstate state routes assigned maintenance road number known reference number maintenance road numbers unique specific county roads designated multiple road numbers example corner road designated road road road maintenance road numbers exist near parent roads short alignment example designated road old sailor road short road branching near laurel designated road maintenance road numbers signed little white markers intersections showing roads intersect auxiliary plates warning signs approaching intersections interstate state routes maintenance road numbers match signed route numbers instance designated road state routes largely matching maintenance road numbers example entire length designated road routes maintenance road numbers reflect route designations example section laurel georgetown designated road reflecting designation stretch road highway systems includes delaware portion highway system state routes system includes special routes state routes alternate business truck routes routes consist banner denoting type special route route marker alternate routes provide second alignment route points provides alternate routing passing passes business routes pass business area city main route bypasses business passes central portion bypasses city east truck routes provide alternate route trucks certain portion route provides route truck traffic bypasses section passes routes exist short branch parent routes letter added route number routes area provides access port wilmington addition systems state roads designated maintenance road number maintains total miles state roads delaware comprises percent roadway mileage state exceptions maintenance include bridges delaware canal maintained delaware memorial bridge maintained total miles delaware roadways national_highway_system system highways important united_states economy defense mobility system includes interstate highways delaware principal connect transportation facilities provides connections major military facilities united_states longest route overall delaware miles longest state route miles length miles longest delaware interstate highways shortest route miles roads maintained include freeways arterial roads collector roads local roads serving urban rural areas delaware total miles freeway considered freeways state include portion dover air force base section south newport prices corner run connector links dover toll roads exist state mainline toll plaza located portion near maryland border newark tolls collected freeway mainline toll dover ramp tolls tolls paid cash electronic toll collection system known collects tolls delaware memorial bridge motorists entering delaware new_jersey cash highways transportation projects delaware funded receives revenue tolls motor fuel taxes cents gasoline cents special motor vehicle document registration fees fees revenues million revenue totaled million system state roads scenic historic natural cultural recreational archaeological qualities system created originally known system including history early roads native americans originally inhabited delaware waterways travel land trails connecting different bodies water arrival swedish colonists delaware 20th century roads delaware maintained individual counties early roads existed following swedish settlement short followed native american trails animal paths colonial times roads state remained arrival english settlers delaware called construction king highways provide right way communication people colony roads simply narrow clearing paved roads bearing connected philadelphia dover points south colonial roads delaware ran east west connecting coastal ports inland areas 18th century ran wilmington dover later century post road ran virginia north peninsula philadelphia delaware road passed georgetown dover wilmington course 18th century road network delaware developed provided links waterways primary mode transportation time 19th century private companies constructed improved important roadways state chartered state privately financed tolls collected toll houses miles road delaware built completed wilmington constructed northern new wilmington connected industrial city agricultural areas built straight roads order reduce costs roads constructed surface course 19th century new methods transportation canals railroads came investment roads revenues companies fell roads local concern development state highways turn 20th century automobile introduced push came better roads constructed state attempted create state highway system passing state aid law state county finance improvements roads law repealed public outcry proposed modern road run length state north wilmington measure roadway planned improve travel bring economic development kent sussex counties modeled great europe foot wide right way consisting foot wide roadway automobiles flanked dual lines foot wide roadways heavy vehicles foot wide roadways horses utilities buried underground horse roadways highway include agricultural experimental stations monuments future surveying revenues help pay construction roadway portions built portions planned turned state charge established construction began end built lane concrete road foot alignment foot wide roadway created april construct maintain system state highways delaware result state took construction completed final section near finished southern delaware economically isolated large cities northeast conjunction rise automobile highway spurred growth delaware beaches greatly improving access coast tourists northern delaware adjacent portions northeast developed major truck farming region having greater access urban markets longer fully reliant railroads transport goods farmers sussex kent counties market fruits vegetables chickens directly consumers north time period highway improvement county offer road bonds state match improve highway highways improved built concrete roads sharp curves eliminated state took private converted free roads state began eliminating railroad grade crossings weather secondary roads constructed consisting concrete lane dirt lane effort reduce costs numbered routes delaware announced creation planned run state highways designated delaware november recommended giving numbers state roads supplement existing highway system delaware began assigning numbers state routes original state route marker square del route number block font shield modified square delaware route number series font route marker circle del route number current route marker introduced entire length dover wilmington widened divided highway time best longest stretch divided highway world course 1930s state roads constructed widened divided highways took maintenance remaining county roads mileage state highway system took city streets wilmington progress improving state highway system slowed world war major project completed time construction high level bridge replace lift bridge destroyed ship following war highway improvement projects took place including widening roads divided highways august approach road opened traffic providing fixed road link new_jersey replacing ferry service previously existed following completion bridge traffic increased plans new freeway handle increased traffic widened divided highway providing divided highway running north south length state freeways created miles interstate highway planned interstate came delaware memorial bridge approach upgraded interstate highway standards portion maryland border near newark newport newport approach delaware memorial bridge built free interstate highway federal funds built instead order speed construction november opened traffic allowed motorists travel washington boston having stop traffic light completed pennsylvania border bypass east wilmington fully opened 1980s plans limited access dover wilmington area alleviate traffic heading summer relief route designated route ran atlantic_ocean north toll road dover air force base opened stages total cost build toll road million largest public works project delaware history 1950s freeway planned corridor maryland border southwest order provide connection delaware memorial bridge washington area current proposal calls built limited access toll road maryland border southwest northeast construction began completion highway planned 21st century began program state maintained dirt roads delaware mid 1990s time totaled miles dirt road state paved road road near eliminated state order reduce confusion changes included dover eliminate overlap removing heading shortening length newark avoid work cited
Delaware State Route System