| I0010 over Drain | 1964 | 66,534 | Fair |
| I0010 over La 26 | 1965 | 61,210 | Fair |
| I0010 over US 165 Frontage Rd RR | 1964 | 27,700 | Poor |
| US0090 over Canal | 1931 | 14,902 | Fair |
| US0165 over Bayou | 2017 | 11,886 | Good |
| US0165 over Bayou Serpent | 2017 | 11,886 | Good |
| US0165 over Bayou Serpent Relief | 2017 | 11,886 | Good |
| US0165 over Gum Bayou | 1932 | 11,886 | Fair |
| I0010 over Chene Bayou | 1965 | 11,635 | Fair |
| I0010 over E. Lacassine Bayou | 1964 | 11,635 | Fair |
| I0010 over Mid Bayou Chene | 1965 | 11,635 | Fair |
| I0010 over US 165 Frontage Rd RR | 1964 | 11,635 | Poor |
| I0010 over W. Lacassine Bayou | 1964 | 11,635 | Fair |
| US0165 over Bayou | 2008 | 9,883 | Good |
| US0165 over Little Bayou | 2017 | 9,883 | Fair |
| US165 over La Irrigation Canal | 1962 | 8,660 | Fair |
| US0165 over Bayou | 2008 | 8,453 | Fair |
| US0165 over Bayou | 2008 | 8,453 | Fair |
| US0165 over Bayou | 2008 | 8,453 | Good |
| US0165 over Bayou Arceneaux | 2008 | 8,453 | Good |
| US0165 over Bayou Serpent | 2008 | 8,453 | Good |
| US0165 over Gum Bayou | 2008 | 8,453 | Fair |
| US0165 over Little Bayou | 2008 | 8,453 | Fair |
| I0010 over La 26 | 1965 | 7,591 | Fair |
| US0190 over Dry Slough | 2003 | 6,816 | Fair |
| US0190 over Bayou | 1934 | 5,849 | Fair |
| LA0026 over Drain | 1932 | 5,622 | Fair |
| LA0026 over Drainage | 1974 | 5,622 | Fair |
| LA0383 over Arceneaux Bayou | 1965 | 5,563 | Fair |
| LA0383 over Drain | 1965 | 5,563 | Fair |
| LA0383 over Serpent Bayou | 1965 | 5,563 | Fair |
| US0090 over Drain | 1935 | 5,020 | Fair |
| US0090 over West Lacassine Bayou | 1991 | 5,020 | Fair |
| US0090 over Canal | 1974 | 4,964 | Fair |
| US0165 over Drain | 1937 | 4,912 | Poor |
| US0090 over B.n. & S.f. R/R Creek | 2002 | 4,262 | Fair |
| US0090 over Bayou | 2022 | 4,262 | Fair |
| US0090 over Chene Bayou | 1985 | 4,262 | Fair |
| US0090 over Drain | 1934 | 4,262 | Fair |
| US0090 over Drain | 1934 | 4,262 | Fair |
| US0090 over East Lacassine Bayou | 1992 | 4,262 | Good |
| US0090 over East Lacassine Bayou | 1985 | 4,262 | Fair |
| Farm Supply Road over I-10 | 1965 | 4,160 | Fair |
| US0090 over Canal | 1954 | 3,789 | Fair |
| Hoke Rd over I-10 | 1964 | 3,760 | Fair |
| LA0102 over Bayou | 2009 | 3,728 | Fair |
| LA0102 over Bayou | 1991 | 3,728 | Fair |
| LA0102 over Canal | 1964 | 3,728 | Fair |
| LA0102 over Drain | 1954 | 3,728 | Fair |
| LA0102 over Drain | 1995 | 3,728 | Fair |
| LA0102 over Grand Marais Bayou | 1990 | 3,728 | Fair |
| LA0102 over I-10 | 1964 | 3,728 | Fair |
| Oilfield Road over I-10 | 1964 | 3,610 | Fair |
| LA0395 over Drain | 1957 | 3,596 | Fair |
| LA0395 over Drain | 1957 | 3,596 | Fair |
| LA0395 over Drain | 1957 | 3,596 | Fair |
| LA0395 over Gum Gulley | 1957 | 3,596 | Fair |
| LA0395 over I-10 | 1965 | 3,596 | Fair |
| LA0101 over Drain | 1962 | 3,166 | Fair |
| LA0101 over Drain | 1962 | 3,166 | Fair |
| LA0101 over Drain | 1962 | 3,166 | Fair |
| LA0101 over Drainage Canal | 1983 | 3,166 | Good |
| LA0101 over Gully | 1983 | 3,166 | Fair |
| LA0101 over Gully | 1983 | 3,166 | Fair |
| LA0101 over I-10 | 1964 | 3,166 | Fair |
| LA0101 over W. Lacassine Bayou | 1983 | 3,166 | Fair |
| US0165 over Union Pacific RR | 2004 | 3,162 | Fair |
| I0010 Frontage RD over Mid Bayou Chene | 1965 | 2,000 | Fair |
| I0010 Service RD over W Bayou Chene | 1965 | 2,000 | Fair |
| LA3258 over Bayou | 1969 | 1,878 | Fair |
| Topsy Bel Rd. over Marsh Bayou | 2003 | 1,800 | Fair |
| Third Street over Bayou | 1968 | 1,790 | Fair |
| LA0099 over Bayou | 1962 | 1,405 | Fair |
| LA0099 over Bayou Alligator | 1962 | 1,405 | Fair |
| LA0099 over I-10 | 1964 | 1,405 | Fair |
| LA0101 over Gully | 1983 | 1,395 | Fair |
| LA0099 over Drain | 1931 | 1,391 | Fair |
| LA0099 over East Lacassine Bayou | 2004 | 1,391 | Fair |
| LA0099 over East Lacassine Bayou | 2003 | 1,391 | Fair |
| Powell Road over Rodgers Gully | 2020 | 1,226 | Fair |
| West Division St over Petite Marais | 2019 | 1,200 | Fair |
| LA0097 over I-10 | 1964 | 1,175 | Poor |
| LA0014 over Drain | 1953 | 1,108 | Fair |
| LA0014 over Drain | 1953 | 1,108 | Fair |
| LA0014 over Lacassine Bayou | 2013 | 1,108 | Fair |
| LA0099 over Drain | 1931 | 1,001 | Fair |
| LA0395 over Drain | 1958 | 922 | Fair |
| LA0395 over West Bayou Marais | 1958 | 922 | Fair |
| LA0395 over West Grand Marais Bayou | 1958 | 922 | Fair |
| I0010 over Drain | 1964 | 838 | Fair |
| I0010 over Drain | 1964 | 838 | Fair |
| I0010 over E. Lacassine Bayou | 1964 | 838 | Fair |
| I0010 over Mid Bayou Chene | 1965 | 838 | Fair |
| I0010 over W Bayou Chene | 1965 | 838 | Fair |
| I0010 over West Lacassine Bayou | 1964 | 838 | Fair |
| LA0102 over Bayou | 2002 | 832 | Fair |
| LA0102 over Broadmore Ditch | 1999 | 832 | Fair |
| LA0102 over Drain | 1996 | 832 | Fair |
| LA0102 over Drain Ditch | 2001 | 832 | Fair |
| I0010 Frontage over W. Lacassine Bayou | 1964 | 606 | Fair |
| North Frontage Rd over E. Lacassine Bayou | 1964 | 606 | Fair |
| Tv Tower Rd. over Serpent Bayou | 2013 | 575 | Fair |
| LA0382 over Bayou Chene | 1993 | 527 | Fair |
| LA0382 over Chene Bayou | 1968 | 527 | Fair |
| LA1126 over Bayou Chene | 2009 | 507 | Fair |
| LA1126 over Chene Bayou | 2015 | 507 | Good |
| LA1126 over Drain | 1973 | 507 | Fair |
| LA1126 over Grand Marias Bayou | 2011 | 507 | Fair |
| LA1126 over Little Ditch | 2017 | 507 | Good |
| East Nichols St. over Welsh Drainage Canal | 1983 | 500 | Poor |
| South St. over Welsh Drainage Canal | 1983 | 500 | Poor |
| LA1130 over Drain | 1964 | 461 | Fair |
| LA1130 over Drain | 1964 | 461 | Fair |
| LA0099 over Bayou Chene | 1979 | 456 | Fair |
| LA0099 over Drain | 1957 | 456 | Fair |
| LA0099 over Drain | 1955 | 456 | Fair |
| LA0099 over Drain | 1955 | 456 | Fair |
| LA0099 over Drain | 1955 | 456 | Fair |
| LA0099 over Drain | 1955 | 456 | Fair |
| LA1126 over Drain | 2017 | 418 | Good |
| LA3056 over Drain | 1961 | 408 | Fair |
| Grand Marais Road over Grand Marais Bayou | 1999 | 400 | Fair |
| LA3086 over Bayou | 1974 | 369 | Fair |
| LA3086 over Drain | 1990 | 369 | Fair |
| LA3086 over Serpent Bayou | 1990 | 369 | Good |
| Abell Road over East Lacassine Bayou | 1999 | 350 | Good |
| Ardoin Cove Road over Drain | 2004 | 350 | Fair |
| Patterson Rd over Bayou | 1980 | 350 | Poor |
| Third St. over Drainage Ditch | 1968 | 325 | Poor |
| LA1131 over Drain | 1976 | 315 | Poor |
| Dewolf Rd. over Arceneaux Bayou | 1980 | 300 | Fair |
| South Adams Street over East Lacassine Bayou | 1970 | 300 | Poor |
| Cormier Village Rd over Creek | 1979 | 250 | Fair |
| Cormier Village Rd over Gully | 1999 | 250 | Good |
| Beaufort Street over Drainage Canal | 2019 | 200 | Fair |
| Bebee Road over Gully | 1971 | 200 | Poor |
| Estes Road over Drain | 1999 | 200 | Good |
| Farm Supply Road over Drain | 1984 | 200 | Fair |
| Iowa Avenue over Drainage Ditch | 1968 | 200 | Poor |
| Joseph Street over Creek | 1968 | 200 | Poor |
| Koll Road over Gum Gully | 1999 | 200 | Fair |
| Oil Field Road over Drain | 1980 | 200 | Fair |
| Patterson Road over Drain | 1999 | 200 | Fair |
| I0010 Frontage Rd over W. Lacassine Bayou | 1964 | 162 | Fair |
| Broadmore Road over Broadmore Bayou | 1976 | 160 | Poor |
| Eighth Street over Bayou | 1970 | 160 | Fair |
| Potter Rd. over Thornwell Drainage Canal | 1976 | 160 | Poor |
| Manuel Road over Serpent Bayou | 2017 | 150 | Fair |
| Manuel Road over Serpent Bayou | 2003 | 150 | Good |
| Rostrom Road over Drain | 1999 | 150 | Fair |
| South Main Road over Creek | 1970 | 150 | Fair |
| Abbie Fontenot Rd. over Bayou | 1980 | 130 | Fair |
| Estes Rd. over Drain | 1970 | 130 | Poor |
| Clifton Road over Drain | 2004 | 110 | Good |
| Clifton Road over Gully | 2004 | 110 | Good |
| Monger Road over Chene Bayou | 1979 | 110 | Fair |
| Clifton Road over Drain | 1975 | 101 | Fair |
| Adams Rd. over Little Marsh Bayou | 1999 | 100 | Fair |
| Adams Road over Little Marsh Bayou | 2015 | 100 | Fair |
| Bourque Road over Canal | 2004 | 100 | Good |
| Dugas Rd. over Ditch | 1976 | 100 | Poor |
| Guidry Rd. over Broadmore Ditch | 1973 | 100 | Poor |
| St. Mary Street over Greens Gully | 2021 | 100 | Good |
| Dama Landry Rd. over Bayou Grand Marais | 1979 | 90 | Fair |
| Rostrom Road over Gully | 1977 | 90 | Poor |
| Bebee Road over Arceneaux Bayou | 1971 | 80 | Fair |
| Carl Hoppe Road over Arceneaux Bayou | 1986 | 80 | Good |
| Farm Supply Rd. over Chene Bayou | 1975 | 80 | Fair |
| Farm Supply Road over Chene Bayou | 1975 | 80 | Poor |
| Farm Supply Road over Gum Gully | 1981 | 80 | Fair |
| Lyons Rd over Bayou Chene | 1978 | 80 | Fair |
| Lyons Rd. over Thornwell Drainage Canal | 1974 | 75 | Poor |
| Payton Rd over East Lacassine Bayou | 1970 | 75 | Poor |
| Ardoin Cove Road over Creek | 1968 | 70 | Poor |
| Ardoin Cove Road over Creek | 1972 | 70 | Fair |
| Augustine Rd. over Gully | 1970 | 70 | Poor |
| Bellard Road over East Lacassine Bayou | 1988 | 70 | Fair |
| Doise Road over Gully | 1981 | 70 | Fair |
| Mouton Road over Chene Bayou | 2020 | 70 | Good |
| Rostrom Road over Drain | 1980 | 70 | Poor |
| Freeland Road over Bayou | 1975 | 60 | Fair |
| Koll Road over West Grand Marais Bayou | 1980 | 60 | Fair |
| Parish Line Road over Serpent Bayou | 2013 | 60 | Fair |
| Tupper Road over W Grand Marais Bayou | 2003 | 60 | Fair |
| Vidrine Rd. over Little Bayou | 1970 | 60 | Poor |
| Welsh Canal Road over Welsh Canal | 1974 | 60 | Fair |
| Abell Road over Ditch | 1978 | 50 | Poor |
| Abell Road over Gully | 1976 | 50 | Poor |
| Abell Road over West Lacassine Bayou | 1970 | 50 | Fair |
| Ardoin Cove Road over Creek | 1990 | 50 | Poor |
| Ardoin Road over Bayou Grand Marais | 1965 | 50 | Fair |
| Atterbery Rd over Drain | 1975 | 50 | Fair |
| Bucklin Road over W.grand Marais Bayou | 1994 | 50 | Fair |
| Carter Road over Gum Gully | 1987 | 50 | Fair |
| Dave Williams Road over Chene Bayou | 1977 | 50 | Fair |
| Freeland Road over Bayou | 2017 | 50 | Fair |
| Grand Marais Road over Gum Gully | 1987 | 50 | Good |
| Kyle Road over Lacassine Bayou Tributar | 2003 | 50 | Fair |
| Linscomb Road over Rogers Gully | 2004 | 50 | Good |
| Litteral Road over W.grand Marais Bayou | 1987 | 50 | Good |
| Miller Oilfield Rd over Gully | 1981 | 50 | Fair |
| Nelson Road over Canal | 1973 | 50 | Poor |
| Pecan Orchard Road over East Bayou Lacassine | 1965 | 50 | Poor |
| Turf Grass Rd. over Gully | 1980 | 50 | Poor |
| Watkins Road over Canal | 1973 | 50 | Fair |
| West Racca Road over East Grand Marais Ditch | 1979 | 50 | Poor |
| Theo Road over Creek | 1978 | 48 | Fair |
| Ardoin Cemetery Rd over Creek | 1978 | 40 | Fair |
| Berken Road over Grand Marais Bayou | 1978 | 40 | Fair |
| Blanchard Road over East Lacassine Bayou | 1965 | 40 | Poor |
| Jenius Rd. over Thornwell Canal | 1978 | 40 | Fair |
| Martin Rd. over Welsh Canal | 1971 | 40 | Fair |
| New Comer Rd. over Bayou | 1979 | 40 | Fair |
| New Comer Rd. over Creek | 1971 | 40 | Poor |
| New Comer Rd. over Gully | 1971 | 40 | Fair |
| Three Mile Rd. over East Lacassine Bayou | 1970 | 40 | Fair |
| Faul Road over Creek | 2019 | 32 | Fair |
| A&d Abshire Rd. over Thornwell Drainage Canal | 1972 | 30 | Poor |
| Aaron Road over Chene Bayou | 1979 | 30 | Poor |
| Babineaux Road over Creek | 1978 | 30 | Fair |
| Blanchard Road over Gum Gulley | 1978 | 30 | Fair |
| Bryan Rd over Gully | 1979 | 30 | Poor |
| Bryan Road over Gully | 1978 | 30 | Fair |
| Bryan Road over Gully | 1978 | 30 | Fair |
| Bryan Road over W. Grand Marais Bayou | 1977 | 30 | Fair |
| Carl Hoppe Road over Bayou | 1980 | 30 | Fair |
| Carl Hoppe Road over Drain | 1979 | 30 | Fair |
| Compton Road over Drain | 1984 | 30 | Fair |
| Compton Road over Gum Gully | 1975 | 30 | Fair |
| Country Rd. over Creek | 1960 | 30 | Poor |
| Dan Buller Road over Rogers Gulley | 1987 | 30 | Good |
| David Road over Gully | 1987 | 30 | Fair |
| Freeland Rd over Drain | 1979 | 30 | Poor |
| Pom Roy Rd. over Mitchell Bayou | 1988 | 30 | Poor |
| Potter Rd. over Thornwell Drainage Canal | 1972 | 30 | Poor |
| Radio Tower Road over Drain | 1987 | 30 | Fair |
| Raoul Road over Bayou | 1977 | 30 | Fair |
| Raoul Road over Drain | 1973 | 30 | Fair |
| Stanley Road over Rogers Gully | 1980 | 30 | Poor |
| Touchet Road over Grand Marais Bayou | 1974 | 30 | Poor |
| Bolles Rd. over Gully | 1975 | 25 | Poor |
| Chaisson Road over East Bayou Lacassine | 2019 | 16 | Fair |