| S405-n605 Conn over Rte 405 605 Conn Riv | 1966 | 22,800 | Fair |
| SR 241 NB over Wildlife Uc | 1998 | 22,500 | Fair |
| SR 241 SB over Santiago Creek | 1998 | 22,500 | Fair |
| SR 241 SB over Wildlife Uc | 1998 | 22,500 | Good |
| Irvine Blvd over Borrego Cyn Channel | 1988 | 22,300 | Fair |
| Irvine Boulevard over Magazine Road | 1988 | 22,300 | Good |
| S55-s405 Connector over I 405 SR 55 & Conns | 1968 | 22,290 | Fair |
| Westminster Ave over Bolsa Chica Channel | 1959 | 22,250 | Fair |
| Macarthur-n73 Onra over SR 73 Ramps Bonita Crk | 1996 | 22,090 | Good |
| Bolsa Ave over Westminster Channel | 1963 | 22,000 | Good |
| Broadway over Interstate 5 | 2000 | 22,000 | Fair |
| E22-n605&405 Conn over S605-s405 Connector | 1966 | 22,000 | Fair |
| Ellis Avenue over Fountain Valley Channel | 1966 | 22,000 | Good |
| Ellis Avenue over Talbert Channel | 1969 | 22,000 | Good |
| Glassell Street over Santa Ana River Channel | 1963 | 22,000 | Fair |
| Main St over I 5 Main-n5 on N5 Off | 1996 | 22,000 | Fair |
| Main St over State Route 22 | 1963 | 22,000 | Fair |
| Mcfadden Ave over Westminster Channel | 1963 | 22,000 | Good |
| Mcfadden Avenue over Route 405 | 2024 | 22,000 | Good |
| Mcfadden Avenue over Santa Ana River | 1964 | 22,000 | Fair |
| Muirlands Blvd. over Aliso Creek | 1973 | 22,000 | Good |
| Orangethorpe Ave. over Placentia Storm Channel | 1969 | 22,000 | Good |
| S55-s73 Connector over SR 73 & SR 55 & Conns | 1976 | 22,000 | Fair |
| Santa Ana Street over Interstate 5 | 2000 | 22,000 | Fair |
| Segerstrom Ave over Santa Ana Gardens Cha | 1965 | 22,000 | Good |
| Tustin Ranch Road over El Moden- Irvine Channel | 1987 | 22,000 | Good |
| Western Avenue over Fullerton Creek Channel | 1958 | 22,000 | Good |
| Edinger Ave over Route 405 | 2024 | 21,729 | Good |
| Moody Street over Moody Creek Channel | 1958 | 21,700 | Good |
| E/B Alicia Parkway over Scrra BNSF Ry Amtrak | 1973 | 21,500 | Poor |
| E/B La Paz Road over Scrra BNSF Ry Amtrak | 1965 | 21,500 | Fair |
| E22-n605 & N405 over State Route 22 | 1966 | 21,500 | Good |
| SR 241 NB over Towne Centre Dr | 1993 | 21,500 | Fair |
| SR 241 SB over Towne Centre Dr | 1993 | 21,500 | Fair |
| W/B Alicia Parkway over Scrra BNSF Ry Amtrak | 1976 | 21,500 | Fair |
| 17TH Street over State Route 55 | 1997 | 21,000 | Good |
| Ball Road over Carbon Creek Channel | 1958 | 21,000 | Good |
| Barranca Pkway over State Route 133 | 1990 | 21,000 | Fair |
| Mcfadden Avenue over Santa Ana Santa Fe Chanl | 1965 | 21,000 | Good |
| Moulton Parkway over Pedestrian & Bike Access | 1968 | 21,000 | Fair |
| N73-n55 Connector over N55-baker St Off-ramp | 1976 | 21,000 | Good |
| Route 241 over Aliso Creek & El Toro Rd | 1995 | 21,000 | Fair |
| Route 241 over Aliso Creek & El Toro Rd | 1995 | 21,000 | Fair |
| S57-w22 Connector over I 5 & Connector Ramps | 1995 | 21,000 | Good |
| State Route 241 NB over Melinda Road | 1995 | 21,000 | Fair |
| State Route 241 SB over Melinda Road | 1995 | 21,000 | Fair |
| State Route 241 over Upper Oso Reservoir | 1995 | 21,000 | Fair |
| State Route 241 over Upper Oso Reservoir | 1995 | 21,000 | Fair |
| Moulton Parkway over Alicia Creek | 1968 | 20,900 | Fair |
| Muolton Pkwy over Equestrian Underpass | 1989 | 20,880 | Fair |
| Chapman Avenue over Anaheim-barber City Cha | 1959 | 20,800 | Good |
| N55-s73 Connector over Bristol St | 2010 | 20,800 | Fair |
| Brea Canyon Blvd. over Brea Canyon Channel | 1929 | 20,709 | Fair |
| Brea Canyon Blvd. over Brea Canyon Channel | 1930 | 20,709 | Fair |
| Brea Canyon Blvd. over Brea Canyon Channel | 1939 | 20,709 | Good |
| SR 73 NB over Crown Valley Pk Cabot Rd | 1996 | 20,700 | Good |
| SR 73 SB over Cabot Road | 1996 | 20,700 | Good |
| State Route 133 NB over Laguna Lakes Trail | 2008 | 20,700 | Good |
| State Route 133 NB over Stage Coach Trail | 2008 | 20,700 | Good |
| State Route 133 SB over Laguna Lakes Trail | 2008 | 20,700 | Good |
| State Route 133 SB over Stage Coach Trail | 2008 | 20,700 | Good |
| Idaho Street over Coyote Creek Channel | 1963 | 20,600 | Good |
| SR 241 NB over Oak Canyon Wildlife | 1998 | 20,500 | Fair |
| SR 241 NB over Santiago Creek | 1998 | 20,500 | Good |
| SR 241 NB over Wildlife Uc | 1998 | 20,500 | Good |
| SR 241 SB over Wildlife Uc | 1998 | 20,500 | Fair |
| Walnut Avenue over El Modena-irvine Channel | 1998 | 20,500 | Good |
| Camino Capistrano over San Juan Creek Channel | 1987 | 20,400 | Fair |
| Alton Parkway over San Diego Creek Channel | 1988 | 20,300 | Good |
| Walker Street over Moody Creek Channel | 1978 | 20,100 | Good |
| 55-405 Hov Connect over State Route 55 SB Main | 2007 | 20,000 | Fair |
| Anton Bl Park Ctr over Santa Ana Delhi Channel | 1974 | 20,000 | Good |
| Bake Parkway over Interstate 5 | 1996 | 20,000 | Good |
| Bolsa Chica Rd over Route 405 | 2024 | 20,000 | Good |
| Bolsa Chica Road over Route 22 | 2015 | 20,000 | Fair |
| Bristol St over Interstate 405 | 1966 | 20,000 | Good |
| Chapman Avenue over State Route 261 | 1997 | 20,000 | Fair |
| Culver Dr over I 405 | 1968 | 20,000 | Fair |
| E91-n57&s57-w91hov over SR 57 91 & Local Strts | 2000 | 20,000 | Good |
| Edinger Avenue over Santa Ana-santa Fe Chanl | 1964 | 20,000 | Good |
| Harvard Ave over San Diego Creek Channel | 1988 | 20,000 | Fair |
| Irvine Center Dr over S133 Off Ramp | 1998 | 20,000 | Fair |
| Irvine Center Dr over State Route 133 | 1970 | 20,000 | Good |
| Jamboree Blvd over Route 405 | 1968 | 20,000 | Good |
| Jamboree Road over State Route 73 | 1985 | 20,000 | Fair |
| Kraemer Blvd over State Route 91 | 1964 | 20,000 | Good |
| Lemon Street over State Route 91 | 1999 | 20,000 | Fair |
| Lincoln Ave over State Route 57 | 1974 | 20,000 | Fair |
| Macarthur Blvd over SR 73 Ramps Bonita Crk | 1996 | 20,000 | Good |
| N241-e91 Connector over SR 91 Ramps & Gypsum Cyn | 1998 | 20,000 | Fair |
| Newport Coast Dr over Newport Coast Dr-n37 on | 1996 | 20,000 | Good |
| North Bristol St over State Route 73 | 1979 | 20,000 | Fair |
| Red Hill Ave over State Route 73 | 1979 | 20,000 | Fair |
| Red Hill Avenue over El Modena-irvine Channel | 1969 | 20,000 | Good |
| Route 133 NB over San Diego Creek | 1958 | 20,000 | Fair |
| Route 133 SB over San Diego Creek | 1968 | 20,000 | Fair |
| Santiago Canyon Rd over State Route 241 | 1997 | 20,000 | Fair |
| Seal Beach Blvd over State Route 405 | 2014 | 20,000 | Fair |
| Slater Avenue over Route 405 | 2019 | 20,000 | Good |
| Sta Margarita Pkwy over State Route 241 | 1995 | 20,000 | Good |
| State Route 133 NB over Interstate 405 & Ramps | 1968 | 20,000 | Good |
| State Route 133 SB over Interstate 405 & Ramps | 1968 | 20,000 | Good |
| Tustin Ave over State Route 91 | 1967 | 20,000 | Good |
| W405(&s55)-bristol over Santa Ana Delhi Channel | 2002 | 20,000 | Fair |
| Western Avenue over Interstate 5 Ramps | 2010 | 20,000 | Fair |
| Yorba Linda Blvd over State Route 57 | 1970 | 20,000 | Fair |
| S57-e91 Connector over State Route 91 | 1969 | 19,960 | Good |
| Tustin Avenue over Santa Ana River Channel | 1967 | 19,800 | Poor |
| N57-e91 Connector over La Palma Ave | 1974 | 19,780 | Fair |
| Main Street over Collins Channel | 1959 | 19,400 | Good |
| Euclid Street over Imperial Channel | 1960 | 19,300 | Good |
| Jamboree-s261 Onrp over S261-walnut Ave Off-ramp | 1997 | 19,210 | Fair |
| S55-macar Off Ramp over Macarthur Strm Channel | 1966 | 19,200 | Fair |
| Jeffrey Road Nbnd over San Diego Creek Channel | 1980 | 19,100 | Good |
| Barranca Parkway over Interstate 5 | 1990 | 19,000 | Fair |
| Commonwealth Ave over Fullerton Creek Channel | 1979 | 19,000 | Fair |
| Harvard Avenue over San Joaquin Channel | 1981 | 19,000 | Fair |
| Cannon Street over Unknown Ravine | 1993 | 18,900 | Fair |
| Memory Lane over Santa Ana River Channel | 1936 | 18,900 | Poor |
| Irvine Center Driv over San Diego Creek Channel | 1989 | 18,400 | Fair |
| Irvine Avenue over Santa Ana Delhi Channel | 1988 | 18,290 | Good |
| Disneyland Flyover over Ball Road | 2000 | 18,200 | Good |
| Disneyland Flyover over Ball Road | 2000 | 18,200 | Fair |
| E/B Alton Parkway over BNSF Ry Amtrak Metrolink | 1980 | 18,200 | Good |
| NB Disneyland Dr. over Disneyland Tramway Rd. | 2000 | 18,200 | Good |
| SB Disneyland Dr. over Dsnylnd Parking Traffic | 2000 | 18,200 | Fair |
| W Macar-n55 On-rmp over Macar Storm Channel | 1966 | 18,200 | Fair |
| Avenida Vista Herm over Interstate 5 | 1981 | 18,000 | Fair |
| Avenida Vista Herm over Interstate 5 | 2004 | 18,000 | Fair |
| Bushard St over Fountain Valley Channel | 1966 | 18,000 | Good |
| Gothard Street over E Grdn Grve-wntrbg Chan | 1964 | 18,000 | Good |
| Kraemer Boulevard over Loftus Diversion Channel | 1979 | 18,000 | Good |
| Newland St over Westminster Channel | 1978 | 18,000 | Good |
| S57-e22 Connector over I 5 & Connector Ramps | 1995 | 18,000 | Good |
| SR 241 over Haul Road | 1998 | 18,000 | Good |
| Springdale Street over E Grdn Grve-wintrbg Chan | 1960 | 18,000 | Good |
| Warner Ave over State Route 55 | 1988 | 17,912 | Fair |
| N&s605-n405 Conn over Los Alamitos Channel | 1966 | 17,900 | Good |
| N&s605-n405 Conn over Service Rd | 1966 | 17,900 | Good |
| Barranca Parkway over Borrego Canyon Channel | 1987 | 17,800 | Good |
| Placentia Avenue over Carbon Creek Channel | 1970 | 17,800 | Good |
| 1ST St over State Route 55 & Ramps | 1995 | 17,700 | Fair |
| Michelson Drive over San Diego Creek Channel | 1976 | 17,700 | Good |
| Bushard Street over E Grdn Grve Wnterbg Chan | 1961 | 17,500 | Good |
| Western Avenue over Carbon Creek Channel | 1959 | 17,500 | Good |
| Garfield Avenue over Talbert Channel | 1970 | 17,420 | Good |
| Paseo De Colinas over Scrra BNSF Ry Amtrak Etc | 1965 | 17,400 | Good |
| S73-s5 Connector over Camino Capistrano Metro | 1996 | 17,400 | Good |
| Orangewood Avenue over Santa Ana River Channel | 1966 | 17,200 | Poor |
| Dale Avenue over Carbon Creek Channel | 1959 | 17,100 | Good |
| Bonita Canyon Dr. over Bonita Canyon | 1995 | 17,000 | Good |
| Bonita Canyon Dr. over Bonita Creek | 1995 | 17,000 | Fair |
| Bonita Canyon Dr. over Wildlife Uc | 1995 | 17,000 | Fair |
| Campus Drive over San Diego Creek Channel | 1974 | 17,000 | Fair |
| Edwards St over Westminster Channel | 1965 | 17,000 | Good |
| Edwards Street over E Grdn Grve-wntrbg Chan | 1960 | 17,000 | Good |
| Idaho Street over Imperial Channel | 1963 | 17,000 | Good |
| Sunflower Avenue over Greenville-banning Chnl | 1958 | 17,000 | Good |
| W/B Alton Parkway over BNSF Ry Amtrak Metrolink | 1981 | 17,000 | Fair |
| El Paseo Road over BNSF Ry Amtrak Metrolink | 1994 | 16,970 | Good |
| Alton Parkway over Bee Canyon Wash Channel | 1987 | 16,900 | Good |
| Santa Clara-n5 on over Interstate 5 | 1996 | 16,832 | Good |
| Walker Street over Carbon Creek Channel | 1958 | 16,820 | Fair |
| N241-s133 Connectr over State Route 241 | 1998 | 16,800 | Fair |
| Orangethorpe Ave. over Richfield Channel (E05) | 1964 | 16,800 | Good |
| Warner Avenue over Peters Canyon Channel | 1997 | 16,800 | Good |
| Stanton Avenue over Fullerton Creek Channel | 1958 | 16,766 | Fair |
| N5-jamboree Off-ra over State Route 261 | 1998 | 16,612 | Fair |
| EB Trabuco Road over Aliso Creek | 1975 | 16,500 | Fair |
| WB Trabuco Road over Aliso Creek | 1975 | 16,500 | Good |
| Western Avenue over Anaheim-barber City Cha | 1964 | 16,500 | Good |
| S5&s57-w22 Connect over Santa Ana Rv Hesperian | 2008 | 16,285 | Fair |
| S5&s57-w22 Connect over W22-metropolitan Off Rmp | 2008 | 16,285 | Fair |
| S5&s57-w22 Connect over the City Drive | 2008 | 16,285 | Good |
| S73-s55 Connector over Bristol Street | 1976 | 16,200 | Good |
| Dale Street over Brea Creek Channel | 1996 | 16,147 | Good |
| Springdale Street over Route 405 | 2024 | 16,036 | Good |
| Dale Street over Anaheim-barber City Cha | 1959 | 16,000 | Good |
| El Camino Real over El Modena-irvine Channel | 1987 | 16,000 | Fair |
| El Camino Real over Prima Deshecha Canada | 1928 | 16,000 | Good |
| La Paz Rd over La Paz Equip Uc | 1968 | 16,000 | Good |
| Paularino Avenue over Santa Ana Delhi Channel | 1981 | 16,000 | Good |
| W/B La Paz Road over Scrra BNSF Ry Amtrak | 1965 | 16,000 | Fair |
| Alton Parkway over Barranca Channel | 1975 | 15,900 | Good |
| Michelson Dr over San Joaquin Channel | 1950 | 15,500 | Good |
| N57-w91 Conn Ramp over State Route 91 | 1974 | 15,410 | Fair |
| Jeronimo Road over Oso Creek | 1973 | 15,313 | Poor |
| Jeronimo Road over Oso Creek Service Road | 1973 | 15,313 | Good |
| Fairmont Blvd over Amtrak Esperanza Rd | 1998 | 15,300 | Good |
| Irvine Center Dr over Marshburn Channel | 1991 | 15,300 | Good |
| Gilbert St over Fullerton Creek Channel | 1958 | 15,100 | Good |
| Alicia Parkway over State Route 73 | 1996 | 15,000 | Fair |
| Alton Pkwy over State Route 241 | 1993 | 15,000 | Fair |
| Atlanta Avenue over Talbert Channel | 1970 | 15,000 | Fair |
| Ball Rd over State Route 57 | 1974 | 15,000 | Fair |
| Brea Blvd over Brea Creek Channel | 1936 | 15,000 | Good |
| Bryan Avenue over El Modena-irvine Channel | 1987 | 15,000 | Fair |
| Del Mar Ave over State Route 55 | 1990 | 15,000 | Fair |
| E22-n5 Connector over State Route 22 & Ramp | 2008 | 15,000 | Fair |
| E22-n5&n57 Conn over N5-w22 Connector Ramp | 2008 | 15,000 | Fair |
| E22-n605 Conn. over RTE405 | 2014 | 15,000 | Good |
| Oso Parkway over Interstate 5 | 1971 | 15,000 | Good |
| Redhill Ave over Interstate 405 | 2002 | 15,000 | Fair |
| Sand Canyon Ave over Interstate 405 | 1968 | 15,000 | Fair |
| Stanton Ave over Interstate 5 Ramps | 2010 | 15,000 | Fair |
| University Dr over Interstate 405 | 1968 | 15,000 | Fair |
| Harvard Avenue over Sand Canyon Channel | 1981 | 14,800 | Fair |
| Orange Avenue over Carbon Creek Channel | 1959 | 14,800 | Good |
| Valencia Dr over Fullerton Creek Channel | 1958 | 14,800 | Good |
| Garfield Avenue over Fountain Valley Channel | 1965 | 14,700 | Good |
| Chapman Avenue over Fullerton Creek Channel | 1964 | 14,500 | Good |
| Lampson Avenue over Anaheim-barber City Chan | 1966 | 14,500 | Good |
| N605-katella Off R over Katella Ave | 1966 | 14,500 | Fair |
| Raymond Avenue over Fullerton Creek Channel | 1964 | 14,500 | Good |
| Route 261 NB over Utility Road | 1998 | 14,500 | Good |
| Route 261 SB over Handy Creek Rd | 1998 | 14,500 | Fair |
| Route 261 SB over Utility Road | 1998 | 14,500 | Good |
| SR261 NB over Handy Creek Rd | 1998 | 14,500 | Fair |
| N5-brkhurst Off-ra over Interstate 5 Ramp | 2002 | 14,373 | Fair |
| Ave. Vista Hermosa over Segunda Deshecha Canada | 2003 | 14,300 | Fair |
| N133-s241 Connectr over Santiago Aqueduct | 1998 | 14,288 | Good |
| E/B La Paz Road over Oso Creek | 1979 | 14,140 | Fair |
| W/B La Paz Road over Oso Creek | 1979 | 14,140 | Good |
| Brookhurst St over Talbert Channel | 1958 | 14,000 | Good |
| Bushard Street over Ocean View Channel | 1961 | 14,000 | Good |
| Euclid Street over Coyote Creek Channel | 1978 | 14,000 | Fair |
| N/B Jamboree Road over Peters Canyon Channel | 1989 | 14,000 | Fair |
| Rancho Viejo Road over Horno Creek Channel | 1982 | 14,000 | Good |
| S/B Jamboree Road over Peters Canyon Channel | 1989 | 14,000 | Fair |
| E/B Irvine Blvd over Peters Canyon Wash | 1999 | 13,500 | Good |
| Katella Ave EB over Santa Ana River Channel | 1989 | 13,500 | Fair |
| Katella Ave WB over Santa Ana River Channel | 1989 | 13,500 | Good |
| S133-n405 Conn over San Diego Creek | 1968 | 13,270 | Fair |
| S5-n133 Conn over Sand I5 Mr. Wy SR133 | 1998 | 13,184 | Fair |
| 5TH Street over Santa Ana River Channel | 1962 | 13,000 | Good |
| Heil Ave over Huntington Center Storm | 1987 | 13,000 | Good |
| Lakeview Ave over Imperial Highway | 1962 | 13,000 | Good |
| Lincoln Ave. (EB) over Coyote Creek Channel | 1955 | 13,000 | Good |
| Lincoln Ave. (WB) over Coyote Creek Channel | 1955 | 13,000 | Good |
| Orangethorpe Ave. over Carbon Canyon Channel | 2016 | 13,000 | Good |
| Rancho Parkway over Serrano Creek Trail | 1990 | 13,000 | Good |
| Westminster Ave-eb over Los Alamitos Channel | 1964 | 13,000 | Fair |
| Westminster Ave-wb over Federal Storm Channel | 1964 | 13,000 | Fair |
| Westminster Ave-wb over Los Alamitos Channel | 1964 | 13,000 | Poor |
| Yorktown Ave over Talbert Channel | 1970 | 13,000 | Fair |
| Berkley Ave over Brea Creek Channel | 1966 | 12,900 | Fair |
| Jeronimo Road over Serrano Creek Channel | 1979 | 12,900 | Good |
| Main Street E/B over San Diego Creek Channel | 1988 | 12,900 | Good |
| Main Street over Barranca Channel | 1975 | 12,900 | Good |
| Dyer Rd-s55 on Ram over Dyer Road Storm Channel | 1966 | 12,700 | Fair |
| Ridgeline Drive over Sand Canyon Channel | 1976 | 12,700 | Fair |
| Marina Hills Drive over Equestrian Uc | 1980 | 12,500 | Fair |
| Via Lido over West Lido Channel | 1930 | 12,500 | Good |
| Ward Street over E Grdn Grve Wintrbg Chan | 1961 | 12,500 | Good |
| S/B Moulton Pkwy over Aliso Creek | 1987 | 12,272 | Good |
| Alta Vista Street over Carbon Canyon Channel | 1992 | 12,200 | Good |
| S605-katella Off R over Katella Ave | 1966 | 12,200 | Fair |
| Antonio Parkway over San Juan Creek | 1997 | 12,135 | Good |
| Euclid-s5 On-ramp over Interstate 5 | 2000 | 12,081 | Fair |
| Anaheim Hills Road over Walnut Canyon Channel | 1972 | 12,000 | Good |
| Avenida Pico over Segunda Deshecha Canada | 1971 | 12,000 | Poor |
| Barranca Parkwy over Marshburn Channel | 1989 | 12,000 | Good |
| Crescent Avenue over Moody Creek Channel | 1957 | 12,000 | Fair |
| Hamilton Avenue over Talbert Channel | 1976 | 12,000 | Fair |
| Macarthur Blvd over Interstate 405 | 1968 | 12,000 | Fair |
| Macarthur Blvd over Interstate 405 | 1996 | 12,000 | Fair |
| Marine Avenue over Balboa Island Channel | 1930 | 12,000 | Fair |
| Mesa Drive over Santa Ana Delhi Channel | 1988 | 12,000 | Good |
| Portola Pkwy over Aliso Creek | 1991 | 12,000 | Fair |
| Rancho Viejo Road over Trabuco Creek Channel | 1959 | 12,000 | Fair |
| S5-bake Pkwy Offrp over I 405 5-405 Hov & Ramps | 1996 | 12,000 | Fair |
| S5-s55&n55-n5 Hov over I 5 SR 55 Ramps & Sts | 1994 | 12,000 | Good |
| Springdale St over State Route 22 | 1966 | 12,000 | Fair |
| Camino Del Avion over Salt Creek Bike Path | 1980 | 11,900 | Fair |
| Main Street over State Route 55 | 1962 | 11,900 | Fair |
| W/B Irvine Blvd over Peters Canyon Wash | 1999 | 11,900 | Fair |
| Talbert Avenue over Route 405 | 2024 | 11,797 | Good |
| Bloomfield Street over Carbon Creek Channel | 1958 | 11,775 | Good |
| S5-4th St & Mabury over S 5 (lane #6) | 1995 | 11,613 | Fair |
| Miraloma Avenue over Carbon Cyn Diversion Cha | 1960 | 11,600 | Good |
| Santa Ana Avenue over Santa Ana Delhi Channel | 1960 | 11,532 | Good |
| Gilbert Street over Anaheim-barber City Chan | 1963 | 11,500 | Fair |
| Gypsum Canyon Road over Santa Ana River | 1989 | 11,449 | Fair |
| Associated Road over Loftus Diversion Channel | 1968 | 11,000 | Fair |
| Chapman Avenue over Carbon Canyon Channel | 1967 | 11,000 | Good |
| Departures Traffic over Arrivals Traffic | 1990 | 11,000 | Fair |
| E/B University Dr. over Bonita Creek Channel | 1988 | 11,000 | Fair |
| Jwa-macarthur Conn over John Wayne Airport | 1990 | 11,000 | Fair |
| Lincoln Ave over Interstate 5 | 1995 | 11,000 | Good |
| Moody Street over Carbon Creek Channel | 1958 | 11,000 | Good |
| N/B Moulton Pkwy over Aliso Creek | 1969 | 11,000 | Good |
| South Coast Drive over Greenville-banning Chan | 1981 | 11,000 | Fair |
| Trabuco Road over State Route 133 | 1997 | 11,000 | Fair |
| Tustin Ave over State Route 22 | 1967 | 11,000 | Good |
| W/B Bryan Avenue over Peters Canyon Wash | 1999 | 11,000 | Good |
| W/B University Dr. over Bonita Creek Channel | 1988 | 11,000 | Fair |
| Westminster Ave-eb over Federal Storm Channel | 1964 | 11,000 | Fair |
| Walnut Avenue Wbnd over Peters Canyon Channel | 1980 | 10,800 | Good |
| Baranca Pkwy WB over Peters Canyon Channel | 1969 | 10,700 | Fair |
| Newland Street over Route 405 | 2024 | 10,692 | Good |
| Bushard Street over Route 405 | 2024 | 10,690 | Good |
| S5-katella Off-rp over Katella Avenue | 2000 | 10,627 | Good |
| Alton Parkway EB over State Route 133 & Ramp | 1987 | 10,500 | Fair |
| Alton Parkway WB over State Route 133 & Ramp | 1987 | 10,500 | Fair |
| Baranca Pkwy EB over Peters Canyon Channel | 1978 | 10,500 | Good |
| Michelle Drive over El Modena Irvine Channel | 1974 | 10,500 | Good |
| Valencia Drive over Fullerton Creek Channel | 1958 | 10,500 | Good |
| N73-fairview Off over Interstate 405 & Offramp | 2003 | 10,428 | Fair |
| Associated Rd over Fullerton Dam Div Chan | 1941 | 10,400 | Poor |
| East Yale Loop over San Diego Creek Channel | 1981 | 10,200 | Good |
| Yale Avenue over Yale Avenue Oh | 1989 | 10,200 | Fair |
| N5-1st Off-ramp over Interstate 5 | 1996 | 10,022 | Good |
| 22ND Street over State Route 55 | 1992 | 10,000 | Fair |
| Airport Drive over Rte 55 Ramp Traffic | 1990 | 10,000 | Fair |
| Aliso Creek Road over SR 73 & Ramps | 1996 | 10,000 | Good |
| Antonio Parkway over State Route 241 | 1998 | 10,000 | Fair |
| Bear St over Interstate 405 | 1968 | 10,000 | Fair |
| Birch St over State Route 73 | 1985 | 10,000 | Fair |
| Bonita Canyon Road over Bonita Creek | 1996 | 10,000 | Fair |
| Bristol St-la Veta over I 5 & Cons to SR 57 & 22 | 1992 | 10,000 | Good |
| Camino De Estrella over Interstate 5 | 1981 | 10,000 | Fair |
| Campus Drive over State Route 73 | 1985 | 10,000 | Fair |
| E22 Off Ramp over Santiago Creek | 1967 | 10,000 | Good |
| E22-n405 Conn. over RTE405 | 2014 | 10,000 | Good |
| E91-magnolia Av of over UP RR S5-magnolia Av of | 1970 | 10,000 | Good |
| El Camino Real over Browning Ave Storm Drain | 1986 | 10,000 | Good |
| El Camino Real over State Route 261 | 1998 | 10,000 | Fair |
| Fairhaven Avenue over State Route 55 | 1997 | 10,000 | Good |
| Graham Street over Westminster Channel | 1963 | 10,000 | Good |
| Harvard Avenue over Interstate 405 | 1983 | 10,000 | Fair |
| Irvine Boulevard over State Route 261 | 1997 | 10,000 | Fair |
| Irvine Center Dr over Interstate 405 | 1968 | 10,000 | Good |
| Jamboree Road (NB) over State Route 261 | 1997 | 10,000 | Fair |
| La Jolla St over State Route 57 | 1998 | 10,000 | Fair |
| Laguna Canyon Road over I 405 | 1968 | 10,000 | Good |
| Lincoln -n55 on Ra over Lincoln Ave | 2002 | 10,000 | Fair |
| Los Alisos Blvd over State Route 241 | 1995 | 10,000 | Fair |
| Miraloma Ave over State Route 57 | 1998 | 10,000 | Fair |
| N405-bristol Offrp over Airport Channel | 2002 | 10,000 | Good |
| N405-w22 Connector over Interstate 405 | 2012 | 10,000 | Good |
| Placentia Ave over State Route 91 | 1999 | 10,000 | Good |
| Portola Parkway over Hicks Canyon Trail | 2002 | 10,000 | Good |
| Portola Parkway over State Route 261 | 1997 | 10,000 | Fair |
| Riverdale Ave over State Route 91 | 1967 | 10,000 | Good |
| Rte 405 Access Oc over Rte 55 Ramp Traffic | 1990 | 10,000 | Fair |
| South Street over State Route 57 | 1974 | 10,000 | Fair |
| Sunkist St over State Route 91 | 1999 | 10,000 | Good |
| Von Karman Ave over Interstate 405 | 1979 | 10,000 | Fair |
| W22 on Ramp over Santiago Creek | 1967 | 10,000 | Good |
| N55-n73 Connector over SR 73 & SR 55 & Conns | 1976 | 9,800 | Good |
| State Route 74 EB over Hillside | 2010 | 9,800 | Good |
| State Route 74 WB over Hillside | 2010 | 9,800 | Good |
| State Route 74 WB over Hillside | 2008 | 9,800 | Good |
| State Route 74 over Hot Springs Canyon | 1991 | 9,800 | Fair |
| State Route 74 over San Juan Canyon | 1929 | 9,800 | Fair |
| State Route 74 over San Juan Creek | 1987 | 9,800 | Fair |
| W/B Alton Parkway over San Diego Creek Channel | 1988 | 9,800 | Good |
| Paseo Westpark over San Diego Creek Channel | 1988 | 9,796 | Good |
| Jamboree-s73 on Ra over S73-university Dr Off-rp | 1996 | 9,750 | Fair |
| E/B Bryan Avenue over Peters Canyon Wash | 1998 | 9,700 | Good |
| Avenida Talega over Segunda Deshecha Canada | 2003 | 9,600 | Good |
| Walnut Avenue Ebnd over Peters Canyon Channel | 1980 | 9,600 | Fair |
| West St-n5 on Ramp over Interstate 5 | 2000 | 9,598 | Fair |
| Atlanta Avenue over Huntington Beach Channel | 1966 | 9,500 | Fair |
| Edwards St over Anaheim-barber City Cha | 1975 | 9,500 | Good |
| Indianapolis Ave over Huntington Beach Channel | 1966 | 9,500 | Poor |
| Santiago-n241 Onra over State Route 241 | 1997 | 9,400 | Fair |
| Paularino-n55 Onrp over N55-s405 Connector Ramp | 1968 | 9,301 | Good |
| Palm Drive over Carbon Canyon Channel | 1967 | 9,200 | Good |
| State Route 241 over Trabuco Creek | 1995 | 9,150 | Fair |
| State Route 241 over Trabuco Creek | 1995 | 9,150 | Fair |
| Ave. Vista Hermosa over Marblehead Canyon | 2009 | 9,000 | Good |
| Collins Ave over State Route 55 | 2002 | 9,000 | Good |
| Lewis St over State Route 22 | 2008 | 9,000 | Fair |
| Magnolia St over Huntington Beach Channel | 1973 | 9,000 | Fair |
| Portola Parkway over Borrego Canyon Wash | 1990 | 9,000 | Good |
| Sb39/sb405 On-ramp over Route 405 | 2024 | 9,000 | Good |
| Stage Road over Coyote Creek Channel | 1960 | 9,000 | Good |
| S133-s5 Connector over Interstate 5 St Rte 133 | 1998 | 8,933 | Poor |
| La Veta Avenue over State Route 55 | 2001 | 8,800 | Fair |
| Main Street W/B over San Diego Creek Channel | 1969 | 8,700 | Fair |
| Richfield Road over Cabron Creek Channel | 1964 | 8,700 | Good |
| Long Meadow over Pedestrian Undercrossing | 2004 | 8,660 | Good |
| Holder Street over Carbon Creek Channel | 1958 | 8,650 | Good |
| W91 on Ramp over Houston Ave Drain | 1958 | 8,650 | Good |
| S133-n5 Connector over Ramps & Local Streets | 1998 | 8,625 | Fair |
| Highland Ave over Brea Creek Channel | 1922 | 8,500 | Good |
| Highland Ave over Fullerton Creek Channel | 1959 | 8,500 | Good |
| N133-n405 Connectr over Interstate 405 & Ramp | 1968 | 8,416 | Fair |
| N133-n405 Connectr over State Route 133 | 1968 | 8,416 | Good |
| Lake Forest Drive over Equestrian Trail Uc | 1990 | 8,415 | Fair |
| Lake Forest Drive over Serrano Creek | 1991 | 8,415 | Good |
| Portola Parkway over Borrego Canyon Wash | 1990 | 8,330 | Good |
| 5-57 Hov over I 5 NB I 5 NB Hov 22-n5 | 1995 | 8,200 | Good |
| E/B Alton Parkway over San Diego Creek Channel | 1988 | 8,200 | Good |
| S5-newport Av Off over N55-s5 Connector Ramp | 1995 | 8,200 | Fair |
| Katella-n55 on Ra over Katella Ave | 2002 | 8,133 | Fair |
| Shady Canyon Road over Bommer Cyn Channel | 1970 | 8,100 | Good |
| N133-n5 Connector over Interstate 5 | 1991 | 8,072 | Fair |
| Basque Ave over Brea Creek Channel | 1940 | 8,000 | Fair |
| Calle Delos Molino over Segunda Deshecha Canada | 1971 | 8,000 | Fair |
| Flower St over Santa Ana Delhi Channel | 1973 | 8,000 | Good |
| Graham Street over E Grdn Grve-wnterbg Chan | 1961 | 8,000 | Fair |
| Graham Street over Slater Ave Channel | 1970 | 8,000 | Good |
| Hoover St over Westminster Channel | 1974 | 8,000 | Good |
| Indianapolis Avenu over Talbert Channel | 1970 | 8,000 | Fair |
| Macarthur Departur over Rte 55 Arrivals Ramp | 1990 | 8,000 | Fair |
| Meats Ave over State Route 55 | 2002 | 8,000 | Good |
| Newland St over Huntington Beach Channel | 1984 | 8,000 | Good |
| S1-coast Hiway Off over San Juan Creek | 1927 | 8,000 | Fair |
| Santiago Canyon Rd over Santiago Creek | 1967 | 8,000 | Good |
| Santiago Canyon Rd over Williams Canyon Creek | 1970 | 8,000 | Fair |
| Santiago Cnyn Road over Limestone Canyon | 1931 | 8,000 | Good |
| Westminster Blvd over Route 405 | 2022 | 8,000 | Good |
| Yale Avenue over Interstate 5 | 1984 | 8,000 | Good |
| S57-orangethorpe over Placentia Channel | 1969 | 7,970 | Good |
| Brdwy NB Off-rp over Parking Lot | 1996 | 7,800 | Good |
| S405-s73 Connector over Fairview Rd-s405 On-ramp | 1968 | 7,800 | Fair |
| S55-dyer Rd Off Rp over Dyer Road Storm Channel | 1966 | 7,600 | Fair |
| S5-orangewood Ave over Katella Ave | 2000 | 7,556 | Fair |
| S5-state Col Off-r over Orangewood Ave | 2000 | 7,556 | Good |
| State Route 22 EB over Tustin Avenue | 1967 | 7,500 | Good |
| Via Lomas De Yorba over BNSF Ry Amtrak Metrolink | 1986 | 7,500 | Fair |
| N5-state Col Offra over Chapman Ave-n5 On-ramp | 2000 | 7,492 | Good |
| 4TH St-s55 on Ramp over S55-n&s5 Connectors | 1992 | 7,386 | Good |
| S5-euclid Street over Interstate 5 | 2000 | 7,345 | Fair |
| Dorothy Ln over Fullerton Crk Channel | 1955 | 7,200 | Fair |
| W91-n5 Hov Conn over Interstate 5 NB | 2000 | 7,100 | Good |
| Bison Avenue over Bonita Creek | 1995 | 7,000 | Fair |
| E Orangethorpe Ave over BNSF Railroad Tracks | 2016 | 7,000 | Good |
| La Novia Avenue over San Juan Creek Channel | 1971 | 7,000 | Poor |
| Ritchey Street over Santa Ana-santa Fe Chanl | 1965 | 7,000 | Good |
| Santiago Cnyn Road over Santiago Creek | 1963 | 7,000 | Fair |
| Denni Street over Carbon Creek Channel | 1973 | 6,900 | Good |
| Struck Avenue over Collins Channel | 1959 | 6,900 | Good |
| Cambridge Street over Santiago Creek Channel | 1972 | 6,700 | Fair |
| West Street over Carbon Creek Channel | 1961 | 6,700 | Good |
| E91-s241 Connector over Santa Ana Canyon Rd | 1998 | 6,632 | Fair |
| Beach Street over Laguna Canyon Channel | 1940 | 6,612 | Good |
| Acacia Ave over Fullerton CR Channel | 1955 | 6,600 | Good |
| Fashion Square Ln. over Coyote Creek Channel | 1967 | 6,500 | Fair |
| S5-main St Off-rp over Interstate 5 SB | 1996 | 6,478 | Good |
| S73-bison Off-ramp over Macarthur-s73 On-ramp | 1996 | 6,270 | Fair |
| S73-macarthur Off over Bonita Creek | 1996 | 6,270 | Good |
| Walnut Street over Coyote Creek Channel | 1965 | 6,200 | Good |
| Dale Street over Fullerton Creek Channel | 1958 | 6,197 | Good |
| 17TH St NB on Ra over 17TH Street | 1995 | 6,109 | Good |
| Toledo Way over Serrano Creek Channel | 1980 | 6,100 | Good |
| E/B Dimension Dr. over Serrano Creek | 1987 | 6,080 | Fair |
| Avenida Vaquero over Prima Deshecha Canada | 1970 | 6,000 | Fair |
| E22-s5 Connector over S5&s57-e22 & S57-s5 Rmps | 2008 | 6,000 | Fair |
| Miller Street over Atwood Channel | 2016 | 6,000 | Good |
| Santa Clara Ave over State Route 55 | 1997 | 6,000 | Good |
| W/B Dimension Dr. over Serrano Creek | 1987 | 6,000 | Fair |
| Walnut Ave over State Route 55 | 2002 | 6,000 | Fair |
| Jefferson Street over Atwood Channel | 1965 | 5,900 | Good |
| Loara Street over Carbon Creek Channel | 1961 | 5,900 | Good |
| Mcgaw Avenue over Barranca Channel | 1975 | 5,890 | Good |
| Bison Av-n73 on Ra over N73-macarthur Bl Off-rmp | 1996 | 5,820 | Fair |
| Camino Capistrano over Oso Creek | 1938 | 5,800 | Good |
| S1-n5 Connector over SR 1 Camino Las Ramblas | 1973 | 5,750 | Fair |
| Airport N55 Oc over Interstate 405 | 1990 | 5,700 | Fair |
| S73-university Off over San Diego Creek | 1996 | 5,700 | Fair |
| Anaheim-n5 On-ramp over N5-katelle Off-ramp | 2000 | 5,668 | Good |
| Katella-n5 On-ramp over Disney Way | 2000 | 5,668 | Good |
| La Paz Rd-n73 Onrp over La Paz Road | 1996 | 5,600 | Good |
| Cambridge Street over State Route 22 | 1967 | 5,500 | Fair |
| Cypress Street over Coyote Creek Channel | 1965 | 5,500 | Fair |
| Flower St over Santiago Creek Channel | 1930 | 5,500 | Fair |
| State Route 74 WB over San Juan Creek | 2014 | 5,500 | Fair |
| State Route 74 over San Juan Creek | 1995 | 5,500 | Good |
| Valley Oak Drive over San Diego Creek Channel | 2000 | 5,500 | Fair |
| West Yale Loop over San Diego Creek Channel | 1979 | 5,500 | Good |
| Camino Capistrano over Trabuco Creek Channel | 1970 | 5,400 | Fair |
| Ritz Carlton Drive over Salt Creek Beach Park | 1974 | 5,300 | Good |
| NB 5 La Paz Offrmp over Bnsf/mtrlink/el Toro Crk | 2024 | 5,290 | Good |
| Laguna Canyon Road over Marshburn Channel | 2000 | 5,200 | Good |
| N241-w91 Connector over State Route 91 | 1998 | 5,200 | Good |
| E La PAZ/N5 Onramp over La Paz Rd | 2023 | 5,103 | Good |
| Laguna Canyon Rd over San Diego Creek Channel | 1990 | 5,100 | Good |
| Lake Road over San Diego Creek Channel | 1981 | 5,100 | Good |
| Macarthur-n73 Onra over Macarthur Blvd | 1985 | 5,090 | Fair |
| 405-22 Hov over I-405 NB | 2015 | 5,000 | Good |
| 405-55 Hov Lanes over I 405 NB SR 55 NB | 2004 | 5,000 | Good |
| 405-605 Hov over RT405 & Conn. | 2014 | 5,000 | Fair |
| 55-405 Hov Connect over I 405 NB SR55 SB Ramps | 2007 | 5,000 | Fair |
| Alton Avenue over Santa Ana Delhi Channel | 1970 | 5,000 | Fair |
| Avenida De Las Ban over State Route 241 | 2003 | 5,000 | Fair |
| Avenida Mendocino over Interstate 5 | 1981 | 5,000 | Good |
| Bay Street over State Route 55 | 1992 | 5,000 | Good |
| Bison Ave over State Route 73 | 1996 | 5,000 | Fair |
| Bryan Avenue over State Route 261 | 1998 | 5,000 | Fair |
| Coronado over San Diego Creek Channel | 1989 | 5,000 | Fair |
| Creek Road over San Diego Creek Channel | 1981 | 5,000 | Fair |
| Fairview Road over State Route 55 | 1992 | 5,000 | Fair |
| Glenwd/pacific Dr over State Route 73 | 1996 | 5,000 | Good |
| Greenbriar Lane over Loftus Diversion Channel | 1968 | 5,000 | Fair |
| Harbor-n405 On-ra over Harbor Blvd | 2003 | 5,000 | Fair |
| Lakeview Ave over RR and Orangethorpe Ave | 2017 | 5,000 | Good |
| Mesa Drive over State Route 55 | 1990 | 5,000 | Fair |