Editing Interstate 255 (section)

==Exit list==
{{jcttop|exit|state_col=state|length_ref=}}
{{MOint|exit
|sspan=6
|county=St. Louis
|cspan=6
|location=Concord
|mile=0.00
|mspan=2
|exit=
|road={{Jct|state=MO|I|270|dir1=north|city1=Kansas City}}
|notes=Clockwise terminus; continuation beyond I-55}}
{{MOint|exit
|location1=Concord
|location2=Mehlville
|type=incomplete
|mile=none
|exit=1
|road={{Jct|state=MO|I|55|city1=St. Louis|location2=[[Memphis, Tennessee|Memphis]]}}
|notes=I-55 exit 196; signed as exits 1A (south) & 1B (north); westbound exits and eastbound entrances}}
{{MOint|exit
|location=Mehlville
|lspan=4
|type=incomplete
|mile=0.5
|exit=1B
|road={{Jct|state=MO|US|61|US|67|name2=Lemay Ferry Road}}
|notes=Eastbound exit and westbound entrance}}
{{MOint|exit
|type=concur
|mile=1.2
|exit=1C
|road={{Jct|state=MO|US|50|dir1=west|name1=[[Lindbergh Boulevard]]|to2=to|US|61|US|67|name3=Lemay Ferry Road}}
|notes=West end of US&nbsp;50 overlap; westbound exit and eastbound entrance}}
{{MOint|exit
|mile=2.2
|exit=2
|road={{Jct|state=MO|Route|231|name1=Telegraph Road}}
|notes=}}
{{MOint|exit
|mile=3.2
|exit=3
|road=Koch Road
|notes=Orientation changes from east-west to north-south}}
{{jctbridge|exit
|river=[[Mississippi River]]
|river_wide=yes
|mile=3.5
|mile2=4.0
|bridge=[[Jefferson Barracks Bridge]]}}
{{ILint|exit
|sspan=14
|county=Monroe
|location=Columbia
|type=concur
|mile=6.0
|mile2=6.9
|exit=6
|road={{Jct|state=IL|IL|3|dir1=south|GRR|dir2=south|city1=Columbia}}
|notes=South end of IL&nbsp;3 / GRR overlap}}
{{ILint|exit
|county=St. Clair
|cspan=7
|location=Dupo
|lspan=2
|mile=9.2
|exit=9
|road=S. Main Street/Old Route 3&nbsp;– [[Dupo, Illinois|Dupo]]
|notes=}}
{{ILint|exit
|type=concur
|mile=10.6
|exit=10
|road={{Jct|state=IL|IL|3|dir1=north|GRR|dir2=north|city1=Cahokia|city2=East St. Louis}}
|notes=North end of IL&nbsp;3 / GRR overlap}}
{{ILint|exit
|location=Cahokia
|mile=13.0
|exit=13
|road={{Jct|state=IL|IL|157|city1=Cahokia|name1=Camp Jackson Road}}
|notes=}}
{{ILint|exit
|location=Centreville
|mile=15.0
|exit=15
|road=Mousette Lane
|notes=}}
{{ILint|exit
|location=Alorton
|mile=16.7
|exit=17
|road={{Jct|state=IL|IL|15|city1=Belleville|city2=East St. Louis|name1=New Missouri Avenue}}
|notes=Signed as exits 17A (east) and 17B (west)}}
{{ILint|exit
|location=East St. Louis
|mile=18.6
|exit=19
|road=State Street&nbsp;– [[East St. Louis, Illinois|East St. Louis]]
|notes=}}
{{ILint|exit
|location=Caseyville
|type=concur
|mile=20.1
|exit=20
|road={{Jct|state=IL|I|64|US|50|dir2=east|location1=[[St. Louis, Missouri|St. Louis]]|location2=[[Louisville, Kentucky|Louisville]]}}
|notes=I-64 exit 7; north end of US&nbsp;50 overlap}}
{{ILint|exit
|county1=St.&nbsp;Clair
|county2=Madison
|location=Collinsville
|lspan=2
|mile=23.6
|exit=24
|road=Collinsville Road
|notes=}}
{{ILint|exit
|county=Madison
|cspan=5
|mile=24.8
|exit=25
|road={{Jct|state=IL|I|55|I|70|US|40|noshield3=yes|city1=Chicago|location2=[[Indianapolis]]|location3=[[St. Louis]]}}
|notes=I-55/I-70 exit 10; signed as exits 25A (north/east) & 25B (south/west)}}
{{ILint|exit
|location=Pontoon Beach
|lspan=4
|mile=26.0
|exit=26
|road=Horseshoe Lake Road
|notes=}}
{{ILint|exit
|mile=29.2
|exit=29
|road={{Jct|state=IL|IL|162|city1=Granite City|city2=Glen Carbon}}
|notes=}}
{{ILint|exit
|mile=30.82
|mspan=2
|exit=30
|road={{Jct|state=IL|I|270|location1=[[Indianapolis, Indiana|Indianapolis]]|location2=[[Kansas City, Missouri|Kansas City]]}}
|notes=I-270 exit 7A westbound, 7 eastbound; counterclockwise terminus}}
{{ILint|exit
|mile=none
|exit=
|road={{Jct|state=IL|IL|255|dir1=north|name1=Alton Bypass|city1=Alton}}
|notes=Continuation north beyond I-270}}
{{jctbtm|col=8|keys=concur,incomplete}}