| I-26 over Saw Mill Branch | 1960 | 93,600 | Fair |
| I-526 over Cooper River | 1992 | 76,300 | Fair |
| US 17 Alt over I-26 | 2003 | 59,300 | Good |
| I-26 EB over Timothy Creek | 1960 | 52,800 | Fair |
| I-26 over Timothy Creek | 1960 | 52,800 | Fair |
| US 17 Alt over Sawmill Creek | 1936 | 44,000 | Good |
| US 52 over Canter Hill Swamp | 1971 | 42,000 | Fair |
| S-8-62 over Ancrum Swamp | 2004 | 39,100 | Fair |
| S-8-62 over I-26 | 1961 | 39,100 | Poor |
| S-8-33 over Unnamed Stream | 2000 | 38,400 | Good |
| S-8-29/nad Rd over Goose Creek | 1988 | 34,300 | Fair |
| I-526 EB over Beresford Creek | 1988 | 33,450 | Fair |
| I-526 EB over Marsh | 1989 | 33,450 | Good |
| I-526 EB over Tidal Creek | 1987 | 33,450 | Fair |
| I-526 WB over Beresford Creek | 1988 | 33,450 | Fair |
| I-526 WB over Marsh | 1989 | 33,450 | Fair |
| I-526 WB over Tidal Creek | 1987 | 33,450 | Fair |
| S-8-136 over Goose Creek | 1998 | 29,500 | Good |
| US 52/US 17 Alt over Cooper River | 1944 | 29,000 | Poor |
| I-26 EB over Cypress Swamp | 1961 | 27,700 | Fair |
| I-26 WB over Cypress Swamp | 1961 | 27,700 | Fair |
| I-26 EB over Four Hole Swamp | 1961 | 23,550 | Fair |
| I-26 WB over Four Hole Swamp | 1961 | 23,550 | Fair |
| US 17 Alt over Poplar Branch | 1936 | 23,300 | Good |
| US 17 Alt over RR Csxt | 1936 | 23,000 | Fair |
| S-8-33 over Unnamed Stream | 1997 | 21,000 | Good |
| US 52 EB over Laurel Creek Swamp | 1971 | 21,000 | Fair |
| US 52 WB over Laurel Creek | 1922 | 21,000 | Fair |
| US 52 WB over Laurel Creek | 1971 | 21,000 | Fair |
| US 52 WB over Laurel Creek Swamp | 1922 | 21,000 | Fair |
| US 52 over Molly Branch | 1971 | 20,500 | Fair |
| Sc 41 over Wando River | 2017 | 16,500 | Good |
| L-1206/nexton Pkwy over I-26 | 2017 | 15,000 | Good |
| S-8-88/murray Dr over Turkey Creek | 2005 | 13,100 | Fair |
| S-16/jedburg Rd over Miller Dam Branch | 1958 | 11,700 | Fair |
| S-8-16 over I-26 | 2022 | 11,700 | Good |
| S-8-16/jedburg Rd over Felder Branch | 1958 | 11,700 | Fair |
| S-8-16/jedburg Rd over Sandy Run Creek | 1972 | 11,700 | Fair |
| US 176 over Sandy Run Creek | 1938 | 10,800 | Fair |
| US 176/STATE Rd over Wassamassaw Swamp | 1938 | 10,800 | Fair |
| S-8-33 EB over Martins Creek | 1997 | 10,500 | Good |
| S-8-33 WB over Martins Creek | 2023 | 10,500 | Good |
| US 52 EB over RR Csxt | 1971 | 10,250 | Fair |
| US 52 WB over RR Csxt | 1971 | 10,250 | Good |
| Ramp on I-526 WB over Cooper River Trib | 1992 | 10,100 | Fair |
| S-8-45 over Unnamed Stream | 1966 | 9,900 | Fair |
| L-33 over Beresford Creek | 2024 | 9,600 | Good |
| L-8-33 over Noweel Creek | 1996 | 9,600 | Fair |
| US 52 over RR Csxt | 1996 | 9,600 | Fair |
| US 52 over Walker Swamp | 1997 | 9,600 | Good |
| US 17 Alt over Drain-canady Branch | 1948 | 9,300 | Good |
| US 17 Alt over Wadboo Swamp | 1973 | 9,300 | Fair |
| Ramp on I-526 EB over Marsh | 1989 | 9,100 | Fair |
| S-8-413 over Canal | 1962 | 8,700 | Fair |
| S-8-535/royle Rd over Ancrun Swamp | 2003 | 8,500 | Good |
| S-8-535/royle Rd over I-26 | 1961 | 8,500 | Fair |
| S-8-24 over Local Stream | 1971 | 8,300 | Fair |
| US 176/STATE Rd over Dean Swamp | 2022 | 7,800 | Good |
| S-8-9 over Durham Creek | 1996 | 7,400 | Fair |
| S-8-9 over RR Csxt | 2014 | 7,400 | Good |
| S-8-1092 over Unnamed Stream | 1982 | 7,100 | Good |
| S-8-809 over Trib to Goose CR | 1976 | 6,800 | Fair |
| S-8-9 over Canterhill Swamp | 1980 | 6,600 | Fair |
| S-8-791 over N. Mulberry Creek | 2020 | 6,500 | Good |
| S-8-791/old US 52 over Canterhill Swamp | 1922 | 6,500 | Fair |
| S-8-791/old US 52 over Molly Branch Creek | 1922 | 6,500 | Fair |
| S-8-791/old US 52 over RR Csxt | 1930 | 6,500 | Fair |
| S-8-791/old US 52 over Skilbert Swamp | 1922 | 6,500 | Fair |
| Sc 402 over Wadboo Swamp | 2003 | 6,200 | Fair |
| US 17 Alt & Sc 41 over Santee River | 1998 | 5,600 | Fair |
| S-8-98/cainhoy Rd over Sanders Creek | 1999 | 5,000 | Good |
| Sc 6/SC 45 over Soil Conservation Canal | 1970 | 4,700 | Fair |
| US 17 Alt over Savanna Creek | 1948 | 4,700 | Good |
| US 52 over Crawl Creek | 1999 | 4,700 | Fair |
| US 52 over Rediversion Canal | 1983 | 4,700 | Poor |
| US 52 over Santee River | 2000 | 4,700 | Fair |
| US 52 over Santee River Swamp | 1999 | 4,700 | Fair |
| US 52/N US Hwy 52 over Santee River Swamp | 2000 | 4,700 | Fair |
| S-8-16 over Mill Branch | 2001 | 4,500 | Fair |
| Sc 41 over French Quarters Creek | 1941 | 4,200 | Fair |
| Sc 41 over Quimby Creek | 2003 | 4,200 | Good |
| Sc 402 over Huger Creek | 2005 | 3,700 | Good |
| Sc 402 over Alligator Creek | 1949 | 3,300 | Good |
| Sc 45/TROJAN Rd over Diversion Canal | 2007 | 2,800 | Good |
| Sc 27 over I-26 | 1961 | 2,700 | Fair |
| Sc 27 over Merkel Branch | 1994 | 2,700 | Good |
| Sc 27 over Santee Branch | 1994 | 2,700 | Good |
| Sc 41 over Nicholson Creek | 1941 | 2,600 | Poor |
| Sc 41/HWY 41 over Turkey Creek | 2005 | 2,600 | Good |
| S-8-100 over Fogarty Creek | 1966 | 2,500 | Fair |
| S-8-100 over Unnamed Stream | 1966 | 2,500 | Fair |
| S-8-100 over Unnamed Stream | 1966 | 2,500 | Good |
| Pomflant Access Ro over Foster Creek | 1960 | 2,400 | Fair |
| Wilkinson Way over Goose Creek | 1993 | 2,400 | Fair |
| S-22/california Av over California Branch | 2010 | 2,300 | Good |
| S-8-596/oxford Rd over Unnamed Canal | 1975 | 2,300 | Fair |
| S-8-946/trinity Pi over Unnamed Canal | 1975 | 2,200 | Fair |
| Ramp Off I-26 EB over I-26 | 2019 | 2,100 | Good |
| S-08-126 over Fox Swamp | 2004 | 2,100 | Good |
| S-08-126 over Grave Hill Swamp | 2006 | 2,100 | Good |
| S-8-132/ranger Rd over Trib to Lake Moultrie | 1969 | 2,100 | Fair |
| S-8-32 over I-26 | 1961 | 2,100 | Fair |
| S-8-32 over Partridge Creek | 2016 | 2,100 | Good |
| Ramp Off I-526 EB over Cooper River Trib | 1992 | 2,000 | Good |
| S-135/mudville Rd over Unnamed Branch | 1999 | 1,900 | Good |
| S-135/mudville Rd over Williams Branch | 1999 | 1,900 | Good |
| S-8-413 over Unnamed Stream | 1962 | 1,750 | Fair |
| Sc 45 over Rediversion Canal | 1982 | 1,750 | Fair |
| S-708/viper Rd over RR Csxt | 2009 | 1,600 | Good |
| S-8-35 over Rediversion Canal | 1982 | 1,550 | Poor |
| S-8-98/cainhoy Rd over French Quarter Ck | 2007 | 1,550 | Good |
| S-8-98/canhoy Rd over Quimby Creek | 2007 | 1,550 | Good |
| S-46/old Dairy Rd over Unnamed Stream-1 | 1973 | 1,500 | Good |
| S-46/old Diary Rd over Kelly Branch | 1973 | 1,500 | Good |
| Sc 311 over Trib to Tupelo Bay | 1943 | 1,450 | Good |
| S-8-1258 over Saw Mill Branch | 1975 | 1,200 | Fair |
| S-8-324 over Unnamed Stream | 1969 | 1,200 | Fair |
| S-757/edward Dr over Unnamed Stream | 1973 | 1,150 | Fair |
| S-8-6 over Crawl Creek | 2001 | 1,150 | Good |
| S-8-44/dr Evans Rd over Stream | 2007 | 1,100 | Good |
| S-8-44/sr Evans Rd over Mepkin Creek | 2008 | 1,100 | Good |
| L-2828/fishtalerd over Tidal Marsh | 2009 | 1,000 | Good |
| S-8-126 over Gravel Hill Swamp | 2010 | 850 | Good |
| S-8-351 over Walker Swamp | 1958 | 850 | Fair |
| Ramp Off I-26 EB over Ramp on I-26 EB | 2019 | 800 | Good |
| Ramp on I-26 EB over I-26 | 2019 | 800 | Good |
| S-8-99 over Br of French Quarter CR | 1975 | 800 | Fair |
| S-554/dennis Blvd over Fairlawn Creek | 1966 | 750 | Fair |
| Sc 45 over Wedboo Swamp | 1947 | 750 | Fair |
| S-133/steed CR Rd over Washaw Creek | 2011 | 600 | Good |
| S-133/steed CR Rd over York Bottom Creek | 2006 | 600 | Good |
| S-8-35 over Trib to Crawl Creek | 2001 | 600 | Good |
| S-171/witherbee Rd over Mary Ann Branch | 2004 | 550 | Good |
| S-171/witherbee Rd over Trib to Bullhead Run | 2003 | 550 | Good |
| S-8-204 over Crawl Creek | 1972 | 550 | Fair |
| S-554/dennis Blvd over Unnamed Stream | 1997 | 500 | Good |
| S-554/dennis Blvd over Unnamed Stream | 1999 | 500 | Good |
| S-8-127 over Browns Branch | 1962 | 450 | Fair |
| Sc 45 over Echaw Creek | 1950 | 400 | Fair |
| S-8-598/united Dr over Menzer Run | 1968 | 375 | Fair |
| S-8-598/united Dr over Trib to Quenby Ck | 1968 | 375 | Fair |
| S-8-598/united Dr over Trib to Quenby Ck | 1975 | 375 | Fair |
| S-8-598/united Dr over Trib to Quenby Creek | 1968 | 375 | Fair |
| S-8-598/united Dr over Unnamed Stream | 1968 | 375 | Fair |
| S-8-598/united Dr over Unnamed Stream | 1975 | 375 | Fair |
| S-8-605/walter Rd over Unnamed Stream | 1970 | 375 | Fair |
| S-97/cane Gully Rd over Cane Gully Branch | 2005 | 375 | Good |
| S-97/cane Gully Rd over Unnamed Stream | 1961 | 375 | Fair |
| S-97/cane Gully Rd over Whiskenboo Creek | 1999 | 375 | Good |
| S-97/cane Gully Rd over Whiskenboo Creek | 1975 | 375 | Fair |
| S-8-48/bethera Rd over Whiskinboo Creek | 2000 | 350 | Good |
| S-8-787 over Caton Creek | 1974 | 350 | Fair |
| S-8-787 over Trib to Ashley River | 1980 | 350 | Fair |
| S-8-787 over Trib to Black Creek | 1980 | 350 | Fair |
| S-8-49 over Echaw Creek #1 | 2003 | 325 | Good |
| S-8-49 over Echaw Creek #2 | 2004 | 325 | Good |
| S-8-447 over Unnamed Stream | 1965 | 300 | Fair |
| S-8-447 over Wadboo Creek | 1965 | 300 | Fair |
| S-8-447 over Wadboo Swamp | 1965 | 300 | Fair |
| S-8-447 over Wadboo Swamp | 1965 | 300 | Fair |
| S-8-447 over Wadboo Swamp | 1965 | 300 | Fair |
| L-1527/brtnprkblvd over Sawmill Branch | 2015 | 275 | Good |
| S-696/old Fort Rd over Unnamed Stream | 1972 | 275 | Fair |
| S-8-449 over Gants Mill Branch | 2004 | 275 | Good |
| S-97/cane Gully Rd over Bullhead Creek | 1999 | 275 | Good |
| L-1017/steward St over Unnamed Stream | 1991 | 250 | Good |
| L-1920/rodenisldr over Ralston Creek | 2013 | 250 | Good |
| L-2094/cntnialblvd over Canal | 1999 | 250 | Good |
| L-240/green Bay Rd over King Swamp | 1988 | 250 | Fair |
| L-2728/turtlpondrd over Sawmill Branch | 2015 | 250 | Good |
| L-2888/fairbanksdr over Tidal Marsh | 2009 | 250 | Good |
| L-3163/discoverydr over Stroberfield Branch | 2003 | 250 | Good |
| L-3289/forrestdr over Nowell Creek | 2017 | 250 | Good |
| L-698/whitworth St over Fairlawn Creek | 1973 | 250 | Fair |
| L-8-2381 over Unnamed Stream | 1989 | 250 | Fair |
| L-8-570/rose Dr over Sawmill Branch | 1970 | 250 | Fair |
| S-8-275 over Cypress Swamp | 1966 | 250 | Fair |
| S-8-361 over Canady Branch | 1961 | 250 | Fair |
| S-8-718 over Trib to Lake Marion | 1970 | 250 | Fair |
| S-8-388/holly Ave over Unnamed Stream | 1968 | 225 | Good |
| S-8-788/queenie Rd over Trib to Cypress Swp | 1975 | 225 | Fair |
| S-8-360 over Broad Axe Creek | 1961 | 200 | Fair |
| S-376/alligator Rd over Alligator Creek | 1962 | 150 | Fair |
| S-732 over Goose Creek Reservoir | 2022 | 150 | Good |
| S-902/canal Dr over Fairlawn Creek | 1967 | 150 | Fair |
| S-707/fortview Rd over Unnamed Stream | 1970 | 125 | Fair |
| S-8-1251/angie Dr over Timothy Creek | 1960 | 125 | Good |
| S-8-134/wren Rd over Unnamed Stream | 1965 | 125 | Good |
| S-186/imperial Dr over Unnamed Stream | 1970 | 100 | Fair |
| S-8-47/lebanon Rd over Cypress Swamp -no.1 | 1981 | 100 | Fair |
| S-8-47/lebanon Rd over Mill Branch | 1981 | 100 | Fair |
| S-8-478/birch Ave over Unnamed Stream | 1968 | 100 | Fair |
| S-8-599 over Muddy Creek | 1969 | 100 | Fair |
| S-8-599 over Turkey Creek | 1969 | 100 | Fair |
| S-8-697/secong St over Unnamed Stream | 1973 | 100 | Good |
| Br. of Fox Gulley over Branch | 1968 | 50 | Fair |
| Br. of Fox Gully B over Branch | 1968 | 50 | Fair |
| Bullhead Run Branc over Branch | 1979 | 50 | Fair |
| Cane Gully Branch- over Branch | 1978 | 50 | Poor |
| GAL BRANCH-Bridge over Branch | 1974 | 50 | Fair |
| HARLESTON CREEK-Br over Creek | 1972 | 50 | Fair |
| Harleston Dam Cree over Creek | 1972 | 50 | Fair |
| Harleston Dam Cree over Harleston Dam Creek | 1977 | 50 | Fair |
| NICHOLSON CREEK-Br over Creek | 1970 | 50 | Fair |
| NICHOLSON CREEK-Br over Creek | 1978 | 50 | Fair |
| NICHOLSON CREEK-Br over Creek | 1972 | 50 | Fair |
| NICHOLSON CREEK-Br over Creek | 1973 | 50 | Poor |
| NICHOLSON CREEK-Br over Creek | 1973 | 50 | Poor |
| S-8-408/mccrae Dr over Unnamed Stream | 1966 | 50 | Fair |
| TURKEY CREEK-Bridg over Creek | 1968 | 50 | Fair |
| TURKEY CREEK-Bridg over Creek | 1968 | 50 | Fair |
| TURKEY CREEK-Bridg over Creek | 1973 | 50 | Fair |
| TURKEY CREEK-Bridg over Turkey Creek | 1974 | 50 | Fair |
| WAMBAW CREEK-Bridg over Creek | 1968 | 50 | Fair |
| Whiskenboo Creek-b over Whiskenboo Creek | 1978 | 50 | Fair |
| S-8-607/effie Dr over Unnamed Stream | 1970 | 25 | Fair |
| Perimeter Road over Admirals Ditch | 1967 | 20 | Fair |