| Interstate 405 over Bolsa Chica Ditch | 1959 | 374,000 | Fair |
| Route 5 over Route 55 | 1955 | 329,500 | Fair |
| Interstate 5 over La Paz Rd | 1959 | 327,000 | Fair |
| Interstate 5 over Red Hill Ave | 1992 | 324,300 | Fair |
| State Route 91 over Patt Drain #4 | 1959 | 319,000 | Good |
| State Route 91 over Patt Drain #5 | 1959 | 319,000 | Good |
| State Route 91 over Patt Drain #6 | 1959 | 319,000 | Good |
| Interstate 5 over State Route 261 | 1992 | 316,400 | Fair |
| Route 5 over Jamboree Road | 1991 | 316,400 | Good |
| Interstate 5 over BNSF Ry Amtrak Metrolink | 1992 | 309,000 | Fair |
| I 5 over Santa Ana River | 1999 | 300,000 | Fair |
| Interstate 405 over East Valley Channel | 1966 | 300,000 | Good |
| Interstate 405 over Greenville Banning Chann | 1966 | 300,000 | Good |
| Interstate 405 over Harbor Blvd | 1966 | 300,000 | Fair |
| Interstate 405 over Santa Ana Rvr/euclid St | 1966 | 300,000 | Good |
| Interstate 405 over Service Road | 1966 | 300,000 | Good |
| Interstate 5 over Bee Canyon | 1958 | 300,000 | Good |
| Interstate 5 over El Modena-irvine Channel | 1992 | 300,000 | Good |
| Interstate 5 over Tustin Channel | 1995 | 300,000 | Good |
| State Route 91 over Roadside Ditch Drain A | 1970 | 300,000 | Good |
| State Route 91 over State College Blvd | 1999 | 300,000 | Good |
| Interstate 5 over Culver Dr | 1979 | 294,400 | Fair |
| Interstate 5 over Anaheim Blvd | 2000 | 294,000 | Fair |
| Interstate 5 over Katella Avenue | 2000 | 294,000 | Fair |
| State Route 91 over State Route 90 | 1970 | 292,000 | Good |
| Interstate 5 over Sand Canyon Ave | 1992 | 290,000 | Good |
| State Route 91 over Gypsum Canyon Creek | 1971 | 290,000 | Good |
| State Route 91 over Gypsum Canyon Rd | 1971 | 290,000 | Good |
| Interstate 5 over San Juan Creek | 1958 | 285,000 | Good |
| Interstate 5 over Myford Creek | 1958 | 279,000 | Good |
| Interstate 5 over Peters Canyon | 1992 | 279,000 | Good |
| State Route 57 over Orangethorpe Ave | 1969 | 273,000 | Good |
| State Route 55 over BNSF Ry Amtrak Metrolink | 1964 | 272,000 | Fair |
| State Route 55 over Edinger Ave | 1964 | 272,000 | Fair |
| State Route 55 over N55-w22 Connector Ramp | 1962 | 271,900 | Fair |
| Interstate 5 over Chapman Ave | 2000 | 271,500 | Fair |
| State Route 57 over BNSF Ry | 1969 | 271,000 | Good |
| State Route 57 over BNSF Ry Spur Track | 1969 | 271,000 | Fair |
| State Route 57 over Chapman Ave | 1969 | 271,000 | Good |
| State Route 57 over Crowther Ave | 1969 | 271,000 | Good |
| State Route 57 over Placentia Ave | 1969 | 271,000 | Fair |
| State Route 91 over Stanton Ave | 1970 | 268,000 | Good |
| Interstate 5 over Orangewood Ave | 2000 | 267,000 | Fair |
| Interstate 5 over State College Blvd | 2000 | 267,000 | Fair |
| Interstate 405 over San Diego Creek Channel | 1968 | 266,000 | Good |
| Interstate 405 over San Joaquin Channel | 1968 | 266,000 | Good |
| State Route 22 over Bristol Street | 1963 | 265,000 | Good |
| State Route 22 over I-5 & Connectors | 1995 | 265,000 | Good |
| State Route 91 over Acacia Street | 1959 | 265,000 | Good |
| State Route 91 over BNSF Ry Amtrak Metrolink | 1959 | 265,000 | Good |
| State Route 91 over Brookhurst Street | 1958 | 265,000 | Fair |
| State Route 91 over Carbon Ditch | 1959 | 265,000 | Good |
| State Route 91 over East Street | 1959 | 265,000 | Good |
| State Route 91 over Euclid Street | 1958 | 265,000 | Fair |
| State Route 91 over Gilbert Street | 1958 | 265,000 | Fair |
| State Route 91 over Knott Ave | 1969 | 265,000 | Good |
| State Route 91 over Orangethorpe Ave | 1969 | 265,000 | Good |
| State Route 91 over Route 39 (beach Blvd) | 1970 | 265,000 | Fair |
| State Route 91 over Western Ave | 1969 | 265,000 | Good |
| Interstate 405 over E Garden Grove Channel | 1966 | 263,000 | Good |
| Interstate 405 over Heil Ave Drain | 1966 | 263,000 | Good |
| Interstate 405 over Ocean View Channel | 1966 | 263,000 | Good |
| Interstate 5 over Newport Ave | 1995 | 263,000 | Fair |
| State Route 22 over Garden Grove Blvd | 1965 | 260,000 | Fair |
| Interstate 5 over Carbon Creek | 2002 | 259,800 | Good |
| Interstate 5 over El Toro Road | 1969 | 259,600 | Good |
| Interstate 5 over San Diego Creek | 1958 | 259,000 | Good |
| Interstate 5 over Serrano Creek | 1958 | 259,000 | Good |
| Interstate 405 over Anaheim-barber City Ch | 1965 | 256,000 | Fair |
| Interstate 405 over Navy RR Spur | 1965 | 256,000 | Good |
| Interstate 405 over Route 39 | 1965 | 256,000 | Fair |
| Interstate 405 over UP RR | 1965 | 256,000 | Fair |
| Interstate 405 over Westminster Channel | 1965 | 256,000 | Good |
| Interstate 405 over Los Alamitos Channel | 1965 | 255,000 | Fair |
| State Route 22 over Newhope Street | 1965 | 255,000 | Fair |
| State Route 22 over the City Drive | 1963 | 255,000 | Fair |
| Magnolia Street over Route 405 | 2021 | 254,000 | Good |
| State Route 22 over Santa Ana River | 1963 | 252,000 | Good |
| State Route 22 over Garden Grove Blvd | 1966 | 250,000 | Fair |
| State Route 55 over Santiago Creek | 1962 | 248,000 | Fair |
| State Route 57 over Nutwood Ave | 1969 | 248,000 | Good |
| State Route 55 over Chapman Avenue | 2001 | 247,000 | Good |
| State Route 57 over Associated Road | 1970 | 245,000 | Fair |
| State Route 57 over Bastanchury Road | 1970 | 245,000 | Good |
| State Route 57 over Birch Street | 1971 | 245,000 | Good |
| State Route 57 over Brea Trail | 1971 | 245,000 | Fair |
| State Route 57 over Lambert Road | 1971 | 245,000 | Good |
| State Route 57 over Loftus Diversion Ch | 1970 | 245,000 | Fair |
| State Route 57 over Rolling Hills Dr | 1970 | 245,000 | Fair |
| Ramp/connector 405 over Lane Channel | 1968 | 240,000 | Good |
| State Route 22 over Harbor Blvd | 2008 | 240,000 | Good |
| Interstate 405 over Laguna Channel | 1968 | 237,000 | Good |
| State Route 55 over Dyer Rd | 1966 | 236,000 | Fair |
| State Route 91 over Coyote Creek | 1969 | 235,500 | Fair |
| State Route 91 over Walker Street | 1969 | 235,500 | Good |
| Interstate 405 over Santa Ana Delhi Channel | 1968 | 233,000 | Good |
| Rte 57 & Chapman over Bitterbush Channel | 1976 | 229,000 | Fair |
| State Route 57 over BNSF Ry Amtrak Metrolink | 1976 | 229,000 | Good |
| State Route 57 over Chapman Ave | 1976 | 229,000 | Fair |
| State Route 57 over Katella Ave | 1974 | 229,000 | Fair |
| State Route 57 over La Palma Ave | 1974 | 229,000 | Fair |
| State Route 57 over Orangewood Ave | 1976 | 229,000 | Fair |
| State Route 57 over Santa Ana River | 1976 | 229,000 | Fair |
| State Route 57 over State Route 91 | 1974 | 229,000 | Fair |
| State Route 57 over UP RR & Douglass Rd | 1974 | 229,000 | Fair |
| Route 55 over Katella Ave | 1961 | 228,000 | Fair |
| State Route 55 over Lincoln Ave | 1961 | 227,000 | Poor |
| State Route 55 over North Orange Uc | 1961 | 227,000 | Good |
| State Route 55 over Taft Avenue | 1961 | 227,000 | Fair |
| State Route 91 over Carbon Cyn Diversion Cha | 1961 | 225,000 | Good |
| Interstate 405 over San Joaquin Channel | 1968 | 224,000 | Good |
| SR 55 over Green Field Storm Channl | 1966 | 222,000 | Fair |
| State Route 55 over Macarthur Blvd | 1966 | 222,000 | Fair |
| State Route 55 over Macarthur Storm Channel | 1966 | 222,000 | Good |
| State Route 55 over Main Street | 1966 | 222,000 | Good |
| State Route 22 over Trask Ave | 1965 | 220,000 | Good |
| State Route 22 over Brookhurst Street | 2007 | 215,000 | Good |
| State Route 22 over Euclid Street | 2007 | 215,000 | Good |
| Interstate 5 over Aliso Creek | 1959 | 213,000 | Fair |
| Interstate 5 over BNSF Ry Amtrak Metrolink | 1959 | 213,000 | Good |
| Interstate 5 over La Paz Rd | 2024 | 213,000 | Good |
| State Route 91 over Santa Ana River | 1954 | 213,000 | Fair |
| Route 57 over Tonner Canyon Rd | 1971 | 210,000 | Fair |
| Interstate 405 over San Diego Creek Channel | 1968 | 205,000 | Good |
| Interstate 5 over El Toro Drain | 1959 | 204,000 | Fair |
| Interstate 5 over Agua Chinon Wash | 1927 | 201,000 | Good |
| Interstate 5 over Avenida Pico | 2017 | 200,100 | Good |
| State Route 22 over Newland Street | 1964 | 200,000 | Fair |
| State Route 22 over Taft Street | 1965 | 200,000 | Good |
| State Route 22 over UP RR & Hoover Street | 1964 | 200,000 | Good |
| Interstate 5 over Oso Creek | 1959 | 194,000 | Fair |
| State Route 91 over Roadside Drain B | 1970 | 192,000 | Good |
| Interstate 605 over Coyote Creek | 1966 | 187,000 | Good |
| Interstate 605 over Katella Ave | 1966 | 187,000 | Fair |
| State Route 22 over Magnolia Street | 2007 | 186,000 | Good |
| State Route 22 over Trask Ave | 1965 | 186,000 | Good |
| Interstate 605 over E22-n405 Connector Ramp | 1966 | 185,000 | Good |
| State Route 22 over SR 39 (beach Blvd) | 1964 | 185,000 | Fair |
| State Route 22 over Yockey Street | 1965 | 185,000 | Good |
| I 5 NB over Santiago Creek | 1996 | 183,000 | Good |
| I 5 SB over Santiago Creek | 1996 | 183,000 | Good |
| Interstate 5 NB over 17TH Street | 1995 | 181,250 | Good |
| Interstate 5 SB over 17TH Street | 1995 | 181,250 | Fair |
| Interstate 5 NB over Grand Ave | 1995 | 179,700 | Fair |
| Interstate 5 SB over Grand Ave | 1995 | 179,700 | Good |
| Interstate 5 over Avenida Vaquero | 1981 | 175,200 | Fair |
| Interstate 5 over Junipero Serra Rd | 1958 | 175,000 | Good |
| Interstate 5 over Trabuco Creek | 1959 | 175,000 | Good |
| Interstate 5 over Artesia Blvd | 2010 | 171,000 | Fair |
| State Route 91 over Patt Drain #1 | 1959 | 169,000 | Good |
| State Route 91 over Patt Drain #2 | 1959 | 169,000 | Good |
| State Route 91 over Patt Drain #3 | 1959 | 169,000 | Good |
| Route 55 over N405-s55 Connector | 1966 | 167,000 | Poor |
| SR 55 over S405-n55 Connector | 1966 | 167,000 | Poor |
| State Route 55 over Interstate 405 | 1966 | 167,000 | Fair |
| Interstate 5 over El Camino Real | 1958 | 165,400 | Fair |
| Interstate 5 over N5-n1 Connector | 1962 | 165,400 | Good |
| Interstate 5 over El Horno Creek | 1958 | 162,000 | Good |
| Interstate 5 over El Horno Street | 1958 | 162,000 | Fair |
| State Route 22 over Knott Ave | 1966 | 160,000 | Fair |
| State Route 91 EB over 91-55 Fast Track | 1970 | 159,000 | Good |
| Interstate 5 over Camino Capistrano Onramp | 1960 | 155,700 | Good |
| Interstate 5 over Avenida Presidio | 1960 | 155,100 | Fair |
| Interstate 5 over Avenida Palizada | 1960 | 155,000 | Good |
| Interstate 5 over San Juan Creek Road | 1958 | 155,000 | Good |
| State Route 22 over N5-w22 Connector Ramp | 1963 | 155,000 | Good |
| State Route 91 EB over Weir Canyon Rd | 1971 | 152,000 | Good |
| State Route 91 WB over Weir Canyon Rd | 1971 | 152,000 | Good |
| State Route 91 over Roadside Drain C | 1970 | 152,000 | Good |
| State Route 22 over BNSF Ry Amtrak Metrolink | 1967 | 150,000 | Good |
| State Route 22 over Glassell Street | 1967 | 150,000 | Good |
| State Route 22 over Parker Street | 1967 | 150,000 | Good |
| State Route 91 EB over Coal Canyon Rd | 1971 | 145,000 | Good |
| State Route 91 WB over Coal Canyon Rd | 1971 | 145,000 | Good |
| State Route 91 over Coal Canyon Creek | 1971 | 145,000 | Good |
| State Route 22 over Santiago Creek | 1967 | 144,000 | Good |
| SR 55 over Baker Street | 1966 | 142,000 | Fair |
| SR 55 over Bristol Street | 1973 | 142,000 | Fair |
| SR 55 over Santa Ana Delhi Channel | 1973 | 142,000 | Good |
| State Route 55 over Paularino Ave | 1966 | 142,000 | Fair |
| Interstate 5 over State Route 1 | 1973 | 140,200 | Fair |
| State Route 91 EB over UP RR I 5 SB S5-magnolia | 1970 | 134,000 | Good |
| State Route 91 WB over UP RR I 5 & Conns | 1970 | 134,000 | Good |
| State Route 91 EB over Interstate 5 | 2000 | 132,500 | Fair |
| State Route 91 EB over Magnolia Ave | 1958 | 132,500 | Good |
| State Route 91 WB over Magnolia Ave | 1970 | 132,500 | Good |
| State Route 91 EB over W91-s55 Connector | 1994 | 106,500 | Good |
| State Route 22 EB over Anaheim-barber City Chan | 1958 | 105,000 | Good |
| 91-55 Fasttrack over W91-s55 Connectors | 1994 | 96,857 | Good |
| Interstate 5 NB over Fullerton Creek | 1957 | 95,850 | Good |
| Interstate 5 SB over Fullerton Creek | 2010 | 95,850 | Good |
| Interstate 605 SB over Interstate 405 | 1966 | 95,000 | Fair |
| State Route 22 over Los Alamitos Channel | 1958 | 90,000 | Good |
| SR 73 NB over State Route 55 | 1976 | 86,000 | Good |
| SR 73 SB over Bristol Street | 1977 | 86,000 | Fair |
| SR 73 SB over State Route 55 | 1976 | 86,000 | Good |
| Jamboree Rd over Moffett Drive | 1991 | 80,000 | Fair |
| Jamboree Road over Edinger Avenue | 1999 | 75,000 | Fair |
| Jamboree Road over BNSF Ry Amtrak Metrolink | 1985 | 73,000 | Good |
| Off/on Ramp Jambor over Santa Ana-santa Fe Chanl | 1991 | 73,000 | Good |
| S5&s57-e22 Connect over I 5 & Connector Ramps | 1995 | 72,608 | Good |
| SR 39 (beach Blvd) over E Garden Grove Channel | 1961 | 72,000 | Fair |
| SR 90 (imperial) over State Route 57 | 1970 | 69,800 | Fair |
| Jamboree Road over Warner Avenue | 1991 | 65,500 | Good |
| Crown Valley Pkwy over Scrra BNSF Ry Amtrak Etc | 1970 | 64,230 | Fair |
| Alicia Parkway over Interstate 5 | 1974 | 64,000 | Fair |
| Crown Valley Pkwy over Oso Creek | 1963 | 62,964 | Good |
| N5-n57 Connector over W22-n5 Connector | 1976 | 62,255 | Poor |
| Jamboree Road over Barranca Channel | 1975 | 61,300 | Good |
| Crown Valley Pkwy over Interstate 5 | 1969 | 61,000 | Good |
| Harbor Boulevard over Greenville-banning Chnl | 1958 | 61,000 | Good |
| N5-w91 Connector over UP RR I 5 SR 91 Magnolia | 2002 | 59,919 | Fair |
| S55-s5 Connector over Route 5 & 55 Conns | 1995 | 59,554 | Fair |
| SR 39 (beach Blvd) over Parking Lot Access | 1960 | 59,000 | Good |
| SR 39 (beach Blvd) over Westminster Storm Drain | 1954 | 59,000 | Fair |
| Bake Parkway over Scrra BNSF Amtrak Metro | 1985 | 58,900 | Good |
| SR 39 (beach Blvd) over Brea Creek Channel | 1925 | 57,500 | Fair |
| S57-s5 Connector over I 5; 22-n55 Conn | 1995 | 57,000 | Good |
| SR 39 (beach Blvd) over Carbon Creek Channel | 1961 | 57,000 | Good |
| Bristol St over Santiago Creek Channel | 1947 | 55,000 | Good |
| Oso Parkway over Oso Creek | 1972 | 55,000 | Good |
| Chapman Avenue over Santiago Creek Channel | 1961 | 54,900 | Good |
| El Toro Road over BNSF Ry Amtrak Metrolink | 1970 | 54,405 | Fair |
| S5&s57-w22 Conn over S57-bristol St Off-ramp | 1963 | 54,323 | Fair |
| Harbor Boulevard over Santa Ana River Channel | 1994 | 54,000 | Fair |
| Marguerite Pkwy over Oso Creek Channel | 1970 | 52,940 | Good |
| S5&s57-e22 Conn over N5-w22 Connector Ramp | 1994 | 52,710 | Good |
| SR 73 NB over Baker Street | 1977 | 52,500 | Good |
| SR 73 NB over Bear Street | 1977 | 52,500 | Fair |
| SR 73 NB over Bristol Street | 1977 | 52,500 | Fair |
| SR 73 SB over Baker Street | 1977 | 52,500 | Good |
| SR 73 SB over Bear Street | 1977 | 52,500 | Good |
| N5-n405 Connector over Interstate 5 | 1968 | 52,000 | Fair |
| SR 39 (beach Blvd) over Anaheim Flood Control Ch | 1958 | 52,000 | Fair |
| SR 39 (beach Blvd) over Fullerton Creek | 1958 | 51,000 | Good |
| SR 39 (beach Blvd) over Interstate 5 Ramps | 2010 | 51,000 | Fair |
| State Route 1 over N Arm Newport Bay | 1981 | 51,000 | Fair |
| Avenida San Luis R over Interstate 5 | 1981 | 50,000 | Fair |
| Lake Forest Dr over Interstate 5 | 1974 | 50,000 | Fair |
| S405-e22 over Interstate 405 | 2015 | 50,000 | Fair |
| Euclid Street over Interstate 5 & UP RR | 2000 | 48,000 | Fair |
| Jeffrey Road over Interstate 5 | 1990 | 48,000 | Good |
| SR241 over Wildlife Crossing | 1998 | 48,000 | Good |
| Culver Drive over San Diego Creek Channel | 1971 | 47,700 | Fair |
| SR 90 (imperial) over Brea Canyon Creek | 1959 | 47,500 | Fair |
| Kraemer Boulevard over Carbon Cyn Diversion Cha | 1960 | 47,400 | Good |
| Route 133 NB over Portola Parkway | 1998 | 47,200 | Good |
| Route 133 NB over Santiago Aqueduct | 1998 | 47,200 | Good |
| Route 133 SB over Portola Parkway | 1998 | 47,200 | Good |
| Route 133 SB over Santiago Aqueduct | 1998 | 47,200 | Good |
| Avenida Pico over Segunda Deshecha Canada | 1981 | 47,000 | Fair |
| Bake Parkway over Serrano Creek | 1975 | 47,000 | Fair |
| Brookhurst Street over Fountain Valley Channel | 1966 | 47,000 | Good |
| Brookhurst Street over Interstate 5 Ramp | 2002 | 47,000 | Fair |
| Brookhurst Street over UP RR | 2002 | 47,000 | Fair |
| SR 55 over St Rte 1 (pch) | 1999 | 47,000 | Good |
| SR 90 (imperial) over Imperial Channel | 1968 | 47,000 | Fair |
| State Route 55 over Newport Beach Channel | 1936 | 47,000 | Good |
| Culver Drive over Sand Canyon Channel | 1970 | 46,300 | Good |
| Route 1 over Old Newport Blvd Drain | 2000 | 46,000 | Good |
| Bolsa Chica Rd over Anaheim Barber City Ch | 1976 | 45,500 | Good |
| Los Alisos Blvd over Aliso Creek | 1973 | 45,250 | Poor |
| SR 90 (imperial) over Santa Ana River | 1970 | 45,000 | Good |
| Seal Beach Blvd over Federal Storm Channel | 1950 | 45,000 | Good |
| SR 90 (imperial) over Loftus Diversion Channel | 1970 | 44,500 | Fair |
| Magnolia Ave over Interstate 5 Ramps | 2000 | 44,000 | Fair |
| Jeffrey Road over Woodbridge Bicycle Trail | 1957 | 43,700 | Good |
| Alton Parkway over Interstate 5 | 1984 | 43,000 | Fair |
| Euclid Ave over E Garden Grove Wburg Ch | 1960 | 43,000 | Good |
| SR 241 over Bake Parkway | 1993 | 43,000 | Fair |
| State Route 241 over Aqua Chinon Wash | 1993 | 43,000 | Good |
| SR 133 SB over Marine Way | 1997 | 42,600 | Fair |
| SR133 NB over Marine Way | 1997 | 42,600 | Fair |
| State Route 133 NB over Interstate 5 & Connector | 1996 | 42,600 | Fair |
| State Route 133 SB over Interstate 5 & Connector | 1996 | 42,600 | Fair |
| Los Alisos Blvd over Scrra BNSF Ry Amtrak | 1977 | 42,100 | Poor |
| Bristol St over Santa Ana Gardens Ch | 1961 | 42,000 | Good |
| El Toro Road over Aliso Creek | 1975 | 42,000 | Fair |
| S/B Fairview Road over Hillside | 1989 | 42,000 | Fair |
| Tustin Ranch Road over Interstate 5 | 1992 | 42,000 | Fair |
| Valley View Street over Carbon Creek Channel | 1958 | 42,000 | Good |
| Magnolia Avenue over UP RR | 1999 | 41,400 | Fair |
| E91-s5 Conn over UP RR S5-magnolia Av Off | 1970 | 41,200 | Good |
| Bristol Street over Santa Ana Delhi Channel | 1987 | 41,000 | Good |
| Harbor Blvd over Interstate 5 | 2000 | 41,000 | Good |
| SR 241 SB over Oak Canyon Wildlife | 1998 | 41,000 | Good |
| State Route 1 over Anaheim Bay | 1967 | 41,000 | Fair |
| State Route 1 over Kitt Hwy Usn RR | 1944 | 41,000 | Good |
| Oso Parkway over BNSF Ry Amtrak Metrolink | 1971 | 40,800 | Fair |
| Harbor Blvd over Brea Creek Channel | 1930 | 40,100 | Fair |
| Harbor Blvd over Union Pacific RR | 1925 | 40,100 | Good |
| Euclid Street over Carbon Creek Channel | 1959 | 40,000 | Good |
| Pacific Coast Hwy over Pedestrian Walkway | 1969 | 40,000 | Good |
| Pacific Coast Hwy over Pedestrian Walkway | 1983 | 40,000 | Fair |
| SR 39 (beach Blvd) over Coyote Creek Channel | 1962 | 40,000 | Fair |
| Gilbert St over Brea Creek Channel | 1957 | 39,400 | Fair |
| Adams Avenue over Santa Ana River Channel | 1977 | 39,000 | Good |
| Fourth Street over State Route 55 | 1992 | 39,000 | Fair |
| Golden West St over Westminster Channel | 1965 | 39,000 | Good |
| N5-n55 Connector over N55-4th St & Irvine Rd | 1995 | 39,000 | Good |
| State Route 1 over Talbert Channel | 1991 | 39,000 | Fair |
| Alicia Parkway over Sulphur Creek | 1976 | 38,883 | Fair |
| Fairview Street over Santa Ana River Channel | 1963 | 38,544 | Fair |
| Brookhurst Street over E Garden Grove Wburg Ch | 1960 | 38,500 | Good |
| Euclid Ave over Fullerton Creek Channel | 1958 | 38,300 | Good |
| Red Hill Avenue over Lane Channel | 1950 | 38,200 | Good |
| Macarthur Blvd over San Diego CR University | 1976 | 37,900 | Good |
| Lakeview Avenue over Santa Ana River Channel | 1970 | 37,300 | Poor |
| State Route 1 over Moro Creek | 1924 | 37,250 | Good |
| 1ST St over Interstate 5 | 1995 | 37,000 | Good |
| Ball Road over Interstate 5 | 1990 | 37,000 | Fair |
| Main St over Santiago Creek Channel | 1918 | 37,000 | Good |
| State Route 1 over BNSF Ry Amtrak Metrolink | 1976 | 37,000 | Good |
| State Route 1 over Camino Capistrano | 1960 | 37,000 | Fair |
| State Route 1 over Doheny Park Rd | 1976 | 37,000 | Good |
| State Route 1 over N5-n1 Connector Ramp | 1973 | 37,000 | Fair |
| State Route 1 over San Juan Creek | 1976 | 37,000 | Good |
| W91-n5 Connector over Magnolia Ave | 2000 | 36,170 | Good |
| W91-n5 Hov Conn over Magnolia Ave | 1958 | 36,170 | Good |
| Bolsa Chica St over Westminster Channel | 1960 | 36,000 | Good |
| Lambert Road over Brea Canyon Channel | 1980 | 36,000 | Poor |
| N/B Valley View St over Coyote Creek Channel | 1967 | 36,000 | Good |
| Pacific Park Drive over Bike & Equestrian Trail | 1993 | 36,000 | Good |
| SR 241 SB over Equestrian Trail | 1993 | 36,000 | Fair |
| SR 241 over Haul Road | 1997 | 36,000 | Good |
| State Route 1 over Aliso Creek | 1926 | 36,000 | Fair |
| State Route 1 over Laguna Canyon Channel | 1928 | 36,000 | Good |
| State Route 1 over Tidal Inlet Channel | 2006 | 36,000 | Good |
| State Route 1 over Victoria Drive | 1935 | 36,000 | Good |
| State Route 241 SB over Portola Parkway | 1995 | 36,000 | Fair |
| State Route 241 over Lake Forest Drive | 1993 | 36,000 | Fair |
| Valley View Street over Fullerton Creek Channel | 1958 | 36,000 | Good |
| Yorba Linda Blvd over BNSF Ry Esperanza Rd | 1981 | 36,000 | Poor |
| Golden West Street over E Garden Gro-wburg Ch | 1959 | 35,520 | Good |
| Brookhurst Rd over Fullerton Creek Channel | 1958 | 35,400 | Good |
| State College Blvd over Carbon Creek Channel | 1969 | 35,300 | Fair |
| Alton Parkway over Serrano Creek Channel | 1979 | 35,200 | Good |
| Brookhurst Street over Carbon Creek Channel | 1959 | 35,000 | Good |
| Portola Parkway over Serrano Creek | 1991 | 35,000 | Fair |
| Route 1 Pch over Golf Course Access | 1991 | 35,000 | Good |
| SR 133 SB over BNSF Ry Amtrak Metrolink | 1998 | 35,000 | Fair |
| SR133 NB over BNSF Ry Amtrak Metrolink | 1998 | 35,000 | Fair |
| E22-n55 Connector over State Route 55 | 2001 | 34,875 | Good |
| S55-n405 Conn. over N405-bristol Off-ramp | 2005 | 34,674 | Good |
| SR 73 NB over Sand Canyon Ave (future) | 1996 | 34,500 | Good |
| SR 73 NB over Wildlife Pathway | 1996 | 34,500 | Good |
| SR 73 NB over Wildlife Pathway | 1996 | 34,500 | Good |
| SR 73 SB over Sand Canyon Ave (future) | 1996 | 34,500 | Good |
| SR 73 SB over Wildlife Pathway | 1996 | 34,500 | Good |
| SR 73 SB over Wildlife Pathway | 1996 | 34,500 | Fair |
| Antonio Parkway over Tijeras Creek | 1991 | 34,300 | Fair |
| Taft Avenue over Santa Ana River Channel | 1967 | 34,300 | Poor |
| Del Obispo Street over Trabuco Creek Channel | 1946 | 34,000 | Fair |
| Lincoln Ave over Interstate 5 | 2000 | 34,000 | Fair |
| Macarthur Blvd over Santa Ana Delhi Channel | 1971 | 34,000 | Fair |
| Red Hill Avenue over Santa Ana-santa Fe Chanl | 1963 | 34,000 | Good |
| Weir Canyon Road over Old Canal Road | 1984 | 34,000 | Fair |
| Weir Canyon Road over Santa Ana River Channel | 1983 | 34,000 | Fair |
| Irvine Boulevard over Marshburn Channel | 1990 | 33,700 | Good |
| Crown Valley Pkwy over Arroyo Trabuco | 2000 | 33,160 | Fair |
| 17TH Street over Santa Ana River Channel | 1977 | 33,000 | Good |
| Central Avenue over Brea Canyon Channel | 1969 | 33,000 | Good |
| Magnolia St over E Grdn Grve Wintrbg Chan | 1961 | 33,000 | Good |
| N73-n405 Connector over Interstate 405 | 1968 | 33,000 | Good |
| SR 73 NB over Bonita Canyon Drive | 1996 | 33,000 | Fair |
| SR 73 NB over Newport Coast Drive | 1996 | 33,000 | Good |
| SR 73 NB over San Diego CR University | 1996 | 33,000 | Fair |
| SR 73 SB over Bonita Canyon Drive | 1996 | 33,000 | Fair |
| SR 73 SB over Newport Coast Drive | 1996 | 33,000 | Good |
| SR 73 SB over San Diego CR University | 1996 | 33,000 | Fair |
| Chapman Avenue over Santa Ana River Channel | 1976 | 32,900 | Poor |
| Euclid Street over Brea Creek Channel | 1936 | 32,900 | Good |
| Paseo De Valencia over Aliso Creek | 1966 | 32,800 | Fair |
| Main Street over Lane Channel | 1950 | 32,500 | Good |
| Adams Avenue over Talbert Channel | 1959 | 32,000 | Fair |
| Bake Pkwy-n405 Rmp over Interstate 5 | 1995 | 32,000 | Good |
| N5-n405 & S405-s5 over Interstate 5 SB | 1996 | 32,000 | Good |
| State Route 1 over Santa Ana River | 1992 | 32,000 | Fair |
| Lambert Road over Coyote Creek Channel | 1972 | 31,800 | Good |
| Glassell Street over Santiago Creek Channel | 1939 | 31,600 | Poor |
| Barranca Parkway over Barranca Channel | 1975 | 31,500 | Poor |
| EB 91 Off Ramp over Carbon Cyn Diversion Cha | 1964 | 31,460 | Good |
| Warner Ave over E Garden Gro-wburg Ch | 1960 | 31,200 | Good |
| Brookhurst Street over Anaheim Barber City Chan | 1963 | 31,000 | Good |
| Edinger Avenue over Santa Ana River Channel | 1959 | 31,000 | Good |
| State Route 1 over Irvine Cove Dr | 1956 | 31,000 | Good |
| Stonehill Drive over San Juan Creek Channel | 1992 | 31,000 | Good |
| Katella Avenue over Collins Channel | 1959 | 30,900 | Good |
| Malvern Avenue over Brea Creek Channel | 1939 | 30,500 | Good |
| SR 73 NB over Aliso Viejo Pkwy | 1996 | 30,500 | Good |
| SR 73 NB over El Toro Road | 1996 | 30,500 | Good |
| SR 73 NB over Laguna Canyon Road | 1996 | 30,500 | Good |
| SR 73 SB over Aliso Viejo Pkwy | 1996 | 30,500 | Good |
| SR 73 SB over El Toro Road | 1996 | 30,500 | Good |
| SR 73 SB over Laguna Canyon Road | 1996 | 30,500 | Good |
| Broadway over Interstate 5 | 1985 | 30,000 | Good |
| First Street over Santa Ana River Channel | 2012 | 30,000 | Good |
| Hamilton-victoria over Santa Ana River | 1979 | 30,000 | Good |
| Harbor Blvd over State Route 91 | 2000 | 30,000 | Good |
| Imperial Highway over Buena Vista Ave | 1962 | 30,000 | Good |
| La Palma Ave over State Route 91 | 1967 | 30,000 | Good |
| Lakeview Ave over State Route 91 | 1970 | 30,000 | Good |
| Newhope Street over East Gg-wintersburg Chan | 1950 | 30,000 | Good |
| Segerstrom-slater over Santa Ana River Channel | 1974 | 30,000 | Good |
| Stonehill Drive over BNSF Ry Amtrak Metrolink | 1992 | 30,000 | Good |
| Valley View St over State Route 91 | 1969 | 30,000 | Fair |
| Los Alisos Blvd over English Canyon Channel | 1969 | 29,695 | Good |
| EB Cerritos Ave over Coyote Creek Channel | 1956 | 29,391 | Good |
| WB Cerritos Ave over Coyote Creek Channel | 1962 | 29,391 | Fair |
| E/B Snta Mrgta Pwy over Arroyo Trabuco | 1984 | 29,150 | Fair |
| W/B Snta Mrgta Pwy over Arroyo Trabuco | 1991 | 29,150 | Good |
| Cannon Street over Santiago Creek Channel | 1970 | 29,100 | Poor |
| Bolsa Chica St over Sunset Channel | 1966 | 29,000 | Good |
| Mac Arthur Blvd over Greenville-banning Chan | 1962 | 29,000 | Fair |
| Trabuco Road over Serrano Creek | 1969 | 29,000 | Good |
| Lemon St over Fullerton Creek Channel | 1977 | 28,900 | Good |
| E91-n57 Connector over SR 91 & SR 57 | 1969 | 28,500 | Good |
| S405-n55 Connector over I 405 & N405-s55 Conn | 1968 | 28,500 | Good |
| State Route 133 NB over Laguna Canyon Creek | 2008 | 28,500 | Good |
| State Route 133 NB over Little Sycamore Creek | 2004 | 28,500 | Fair |
| State Route 133 SB over Laguna Canyon Creek | 2008 | 28,500 | Good |
| State Route 133 SB over Little Sycamore Creek | 2004 | 28,500 | Fair |
| Jeronimo Road over Aliso Creek | 1974 | 28,281 | Fair |
| N73-s55 Connector over Santa Ana Delhi Channel | 1999 | 28,130 | Fair |
| N73-s55 Connector over State Route 55 | 1999 | 28,130 | Good |
| Magnolia Avenue over Carbon Creek Channel | 1959 | 28,100 | Good |
| 4TH St over Interstate 5 | 1995 | 28,000 | Fair |
| 91-5 Hov Conn over Interstate 5 | 2000 | 28,000 | Good |
| Katella Avenue over Anaheim-barber City Chan | 1963 | 28,000 | Good |
| Lincoln Avenue over Santa Ana River Channel | 1970 | 28,000 | Good |
| Route 74 over Route 5 | 2018 | 28,000 | Fair |
| University Drive over Sand Canyon Channel | 1950 | 27,700 | Good |
| Tustin Street over Santiago Creek Channel | 1941 | 27,600 | Fair |
| S5-e91 Connector over UP RR I 5 SR 91 Magnolia | 2002 | 27,252 | Good |
| Baker Street over Santa Ana Delhi Channel | 1981 | 27,000 | Good |
| La Palma Avenue over Carbon Cyn Diversion Cha | 1960 | 27,000 | Fair |
| Oso Parkway over Arroyo Trabuco | 1991 | 27,000 | Good |
| Westminister Blvd over Anaheim-barber City Chan | 1976 | 27,000 | Good |
| N55-n5 Connector over Route 5 & 55 & Conns | 1995 | 26,900 | Fair |
| Sand Canyon Avenue over San Diego Creek Channel | 1988 | 26,900 | Good |
| Alton Parkway over Serrano Creek Channel | 1979 | 26,500 | Good |
| W91-s241 Connector over N241-w91 Connector | 1998 | 26,409 | Good |
| W91-s241 Connector over State Route 91 | 1998 | 26,409 | Good |
| Irvine Blvd over Peters Canyon Trail Uc | 1998 | 26,400 | Fair |
| Disneyland Flyover over Ball Road | 2000 | 26,000 | Good |
| La Palma Ave over Interstate 5 Ramps UP RR | 2002 | 26,000 | Fair |
| SR 90 (imperial) over Kellogg Drive | 1962 | 26,000 | Fair |
| State Route 90 over Esperanza Rd BNSF Amtrak | 2010 | 26,000 | Good |
| Sunflower Park CR over Santa Ana Delhi Channel | 1973 | 26,000 | Good |
| Talbert/macarthur over Santa Ana River Channel | 1983 | 26,000 | Good |
| Villa Park Road over Santiago Creek | 1982 | 26,000 | Fair |
| Aliso Creek Road over Aliso Creek | 1988 | 25,915 | Good |
| Tustin Avenue over Atwood Channel | 1967 | 25,300 | Good |
| Mcfadden Street over State Route 55 | 1988 | 25,200 | Good |
| First St over E Garden Grv-wintrbrg Ch | 1960 | 25,000 | Good |
| Irvine Blvd over State Route 133 | 1997 | 25,000 | Fair |
| Knott Avenue over Fullerton Creek Channel | 1950 | 25,000 | Good |
| Lampson Avenue over Bolsa Chica Channel | 1966 | 25,000 | Good |
| Lincoln Avenue over Carbon Creek Channel | 1959 | 25,000 | Good |
| Los Alisos Blvd over Interstate 5 | 1984 | 25,000 | Fair |
| Los Alisos Blvd over Interstate 5 | 2024 | 25,000 | Good |
| N405-s55 Conn Ramp over I 405 & S405-n55 Conn | 1968 | 25,000 | Good |
| N405-s55 Connector over S55-paularino Ave Off-rp | 1968 | 25,000 | Fair |
| SR 73 NB over Aliso Creek | 1996 | 25,000 | Good |
| SR 73 NB over Greenfield Drive | 1996 | 25,000 | Good |
| SR 73 NB over La Paz Road | 1996 | 25,000 | Good |
| SR 73 NB over Moulton Parkway | 1996 | 25,000 | Good |
| SR 73 NB over Pacific Park Drive | 1996 | 25,000 | Good |
| SR 73 SB over Aliso Creek | 1996 | 25,000 | Good |
| SR 73 SB over Crown Valley Parkway | 1996 | 25,000 | Good |
| SR 73 SB over Greenfield Drive | 1996 | 25,000 | Good |
| SR 73 SB over La Paz Road | 1996 | 25,000 | Good |
| SR 73 SB over Moulton Parkway | 1996 | 25,000 | Good |
| SR 73 SB over Pacific Park Drive | 1996 | 25,000 | Good |
| Seal Beach Blvd over Rockwell Puc | 1967 | 25,000 | Good |
| W91-s57 Connector over Routes 91 57 & Conns | 1974 | 25,000 | Fair |
| Warner Avenue over Santa Ana River Channel | 1961 | 25,000 | Good |
| Jeffrey Road Sbnd over San Diego Creek Channel | 1980 | 24,600 | Fair |
| E. Lambert On-ramp over Lambert Rd | 2022 | 24,500 | Good |
| Knott Avenue over Carbon Creek Channel | 1959 | 24,400 | Good |
| Warner Avenue over Route 405 | 2024 | 24,270 | Good |
| Magnolia Ave over Fullerton Creek Channel | 1958 | 24,100 | Good |
| Los Alamitos Blvd. over Coyote Creek Channel | 1955 | 24,008 | Fair |
| La Mirada Blvd. over Coyote Creek Channel | 1950 | 24,000 | Fair |
| Magnolia Street over Anaheim-barber City Chan | 1963 | 24,000 | Good |
| N/B Jamboree Road over San Diego Creek Channel | 1968 | 24,000 | Fair |
| Orangethorpe Ave over Interstate 5 UP RR | 2003 | 24,000 | Good |
| S/B Jamboree Road over San Diego Creek Channel | 1965 | 24,000 | Fair |
| Warner Avenue over Bolsa Chica Beach Chanel | 1981 | 24,000 | Good |
| La Palma Avenue over Carbon Creek Channel | 1959 | 23,800 | Good |
| N55-w91 Connector over SR 55 & 55-91 Fast-track | 1961 | 23,737 | Fair |
| N55-w91 Connector over State Route 91 | 1962 | 23,737 | Fair |
| Antonio Parkway over Wildlife Undercrossing | 1997 | 23,400 | Good |
| Brookhurst St over Route 405 | 2024 | 23,210 | Good |
| N5-n73 Connector over I 5; C. C.; Metro Rail | 1996 | 23,200 | Good |
| Dyer Road over Santa Ana Delhi Channel | 1971 | 23,000 | Good |
| Edinger Avenue over Peters Canyon Channel | 1985 | 23,000 | Fair |
| Newport Ave over El Modena-irvine Channel | 1960 | 23,000 | Good |
| State College Blvd over East Brea Channel | 1967 | 23,000 | Good |
| Tustin Ranch Rd over Scrra Edinger Avenue | 2013 | 22,900 | Good |