| S73-glenwood Off over El Toro Rd-s73 on Ramp | 2003 | 5,000 | Good |
| Santa Isabel Ave over State Route 55 | 1990 | 5,000 | Fair |
| Via California over Route 5 | 1960 | 5,000 | Fair |
| Wagner Ave over State Route 57 | 1974 | 5,000 | Fair |
| Walnut Avenue over State Route 261 | 1998 | 5,000 | Fair |
| Ward Street over Route 405 | 2024 | 5,000 | Good |
| Wilson St over State Route 55 | 1990 | 5,000 | Fair |
| Marina High Acc Rd over Westminster Channel | 1963 | 4,900 | Good |
| Macarthur-s73 Onra over SR 73 & Macarthur-n73 on | 1996 | 4,880 | Fair |
| Jefferson Street over Richfield Channel | 1964 | 4,700 | Good |
| Richman Ave over Brea Creek Channel | 1940 | 4,653 | Good |
| Crowther Avenue over Placentia Storm Channel | 1969 | 4,500 | Good |
| Rose Drive over Atwood Channel & BNSF | 2016 | 4,500 | Fair |
| Canyon Rim Road over Walnut Canyon Channel | 1972 | 4,400 | Good |
| Santa Vittoria Dr over Canada Channel | 1976 | 4,400 | Fair |
| Van Buren Street over Carbon Creek Channel | 1965 | 4,300 | Good |
| Van Buren Street over Richfield Channel | 1964 | 4,300 | Good |
| SR 241 NB over Wildlife | 1998 | 4,050 | Fair |
| SR 241 SB over Wildlife | 1998 | 4,050 | Fair |
| SR 241 over Tijeras Creek | 1998 | 4,050 | Good |
| SR 241 over Tijeras Creek | 1998 | 4,050 | Good |
| 5TH St over East Gg-wintersburg Chan | 1950 | 4,000 | Good |
| Avenida Vaquero over Prima Deshecha Canada | 1974 | 4,000 | Fair |
| Bolsa Ave over Route 405 | 2023 | 4,000 | Good |
| Browning Avenue over El Modena-irvine Channel | 1980 | 4,000 | Good |
| Calle Frontera over Segunda Deshecha Canada | 1981 | 4,000 | Fair |
| Cow Camp Road over Chiquita Canyon Creek | 2015 | 4,000 | Good |
| Edwards Street over Route 405 | 2022 | 4,000 | Good |
| Normandale Drive over Aliso Creek | 1987 | 4,000 | Fair |
| Auto Center Drive over Fullerton Creek Channel | 1959 | 3,988 | Good |
| S133-barranca Pkwy over S5-s133 Connector Ramp | 1996 | 3,872 | Fair |
| Valencia Mesa Dr over Equestrian Trail Uc | 1990 | 3,800 | Good |
| Golden Avenue over Carbon Canyon Channel | 1934 | 3,700 | Fair |
| W/B Lgna Hills Dr over Aliso Creek | 1985 | 3,618 | Fair |
| E/B Lgna Hills Dr over Aliso Creek | 1985 | 3,606 | Fair |
| Island Way over Dana Point Harbor | 1970 | 3,510 | Good |
| Western Avenue over Brea Creek Channel | 1960 | 3,400 | Good |
| Crowther Avenue over Carbon Canyon Channel | 1990 | 3,300 | Fair |
| 38TH Street over Rivo Alto | 1973 | 3,200 | Fair |
| Monte Vista Avenue over Coyote Creek Channel | 1978 | 3,200 | Good |
| Malden Ave over Brea Creek Channel | 1934 | 3,102 | Good |
| Basque Ave over Fullerton Creek Channel | 1961 | 3,100 | Good |
| Trinidad Lane over Trinidad Island Channel | 1974 | 3,100 | Good |
| S241-alton Pkw Off over Towne Centre Dr | 1993 | 3,090 | Fair |
| Casta Del Sol over Oso Creek | 1973 | 3,062 | Poor |
| Banning Avenue over Talbert Channel | 1959 | 3,000 | Fair |
| Bedford Road over State Route 22 | 1963 | 3,000 | Fair |
| Calle Saluda over Segunda Deshecha Canada | 2003 | 3,000 | Good |
| Doheny-n1 on Ramp over BNSF Ry Amtrak Metrolink | 1976 | 3,000 | Good |
| Gene Autry Way over Interstate 5 SB | 2000 | 3,000 | Good |
| Gene Autry Way over Santa Cruz Street | 2000 | 3,000 | Fair |
| Hov-gene Autry Way over Interstate 5 NB | 2000 | 3,000 | Fair |
| Humboldt Drive over Short Channel | 1963 | 3,000 | Poor |
| Las Palmas Drive over Equestrian Trail | 1998 | 3,000 | Good |
| Marina Viking Way over Westminster Channel | 1963 | 3,000 | Good |
| Richman Ave over Fullerton Creek Channel | 1958 | 3,000 | Good |
| Rte 55 Departures over Rte 55 Arrivals Ramp | 1990 | 3,000 | Fair |
| Trabuco Canyon Rd. over Trabuco Creek | 1980 | 3,000 | Good |
| Vista Del Lago over English Canyon Channel | 1976 | 2,828 | Good |
| El Camino Real over Peters Canyon Wash | 1998 | 2,730 | Good |
| E Las Palmas Dr over UP RR | 1991 | 2,700 | Good |
| Moulton Pkwy-n73 over Pacific Park Drive | 1996 | 2,700 | Good |
| Nellie Gail Road over Narco Channel | 1979 | 2,700 | Fair |
| Alton Pkwy-n241 on over Towne Centre Dr | 1993 | 2,610 | Good |
| Lakeview Avenue over Imperial Channel | 1964 | 2,600 | Good |
| Broadway over Sunset Channel | 1959 | 2,500 | Fair |
| Chippewa Avenue over Carbon Creek Channel | 1960 | 2,500 | Good |
| Juanita Street over Carbon Creek Channel | 1989 | 2,475 | Fair |
| Woods Ave over Fullerton Creek Channel | 1958 | 2,400 | Good |
| Barranca Pkwy Hov over Interstate 5 | 1991 | 2,354 | Fair |
| 57 SB on Ramp over Brea Canyon Channel | 1971 | 2,260 | Good |
| Park Avenue over Grand Canal | 2017 | 2,150 | Fair |
| Tonner Canyon Road over Brea Canyon Channel | 1971 | 2,119 | Good |
| 405-73 Hov Conn over Interstate 405 | 2024 | 2,016 | Good |
| Admiralty Drive over Queen Elizabeth Passage | 1963 | 2,000 | Fair |
| Davenport Dr over Weatherly Channel | 1965 | 2,000 | Poor |
| Deming Street over E Grdn Grve Wintrbg Chan | 1961 | 2,000 | Good |
| Goldenwest Street over Route 405 | 2022 | 2,000 | Good |
| Mill Creek Drive over Canada Channel | 1980 | 2,000 | Fair |
| On-ramp 405 over Route 39 | 2024 | 2,000 | Good |
| Parkcenter Drive over El Modena-irvine Channel | 1987 | 2,000 | Good |
| Silverado Canyn Rd over Ladd Canyon | 1947 | 2,000 | Fair |
| Silverado Canyn Rd over Silverado Canyon Creek | 1947 | 2,000 | Fair |
| Silverado Canyn Rd over Silverado Canyon Creek | 1947 | 2,000 | Poor |
| Silverado Canyn Rd over Silverado Canyon Creek | 1947 | 2,000 | Poor |
| Silverado Cnyn Rd over Silverado Canyon Creek | 1971 | 2,000 | Good |
| Silverado Cnyn Rd. over Silverado Canyon Creek | 1935 | 2,000 | Fair |
| Silverado Cnyn Rd. over Silverado Canyon Creek | 1970 | 2,000 | Good |
| Silverado Cnyn Rd. over Silverado Canyon Creek | 1970 | 2,000 | Good |
| Stevens Ave over Santa Ana Delhi Channel | 1973 | 2,000 | Good |
| Union Ave over Brea Creek Channel | 1939 | 2,000 | Fair |
| Valley View Dr over Brea Creek Channel | 1940 | 2,000 | Good |
| Via Lomas over Bikeway Undercrossing | 1970 | 2,000 | Fair |
| Warland Drive over Bolsa Chica Channel | 1991 | 2,000 | Fair |
| Rostrata Avenue over Brea Creek Channel | 1987 | 1,927 | Fair |
| S5-ball Rd Off-rp over Interstate 5 SB | 2000 | 1,749 | Fair |
| S73-n&s133 over Wildlife Pathway | 1996 | 1,701 | Fair |
| S73-bonita Cyn Off over Bonita Canyon Drive | 1996 | 1,570 | Fair |
| Edward Ave over Fullerton Creek Channel | 1958 | 1,557 | Good |
| Ford Ave over Brea Creek Channel | 1922 | 1,556 | Good |
| Burning Tree Rd over Brea Creek Channel | 1991 | 1,551 | Fair |
| Citrus Ave over Fullerton Creek Channel | 1958 | 1,550 | Good |
| N5-irvine Ctr Off over Bake Pkwy-n405 On-ramp | 1996 | 1,550 | Good |
| Entidad Street over English Canyon Channel | 1976 | 1,540 | Good |
| Edinger Avenue over Bolsa Chica Channel | 2019 | 1,529 | Fair |
| Bee Canyon Rd over SR 241 & Connector | 1997 | 1,500 | Fair |
| Chestnut St over Westminster Channel | 1974 | 1,500 | Good |
| Wilshire Ave over Fullerton Creek Channel | 1964 | 1,500 | Good |
| Cow Camp Road over Gobernadora Canyon | 2020 | 1,440 | Good |
| La Paz Rd-s73 Onra over Pacific Park Drive | 1996 | 1,250 | Good |
| La Paz Rd-s73 Onrp over La Paz Road | 1996 | 1,250 | Good |
| La Paz Rd-s73 on over Moulton Parkway | 1996 | 1,250 | Good |
| Darlington Avenue over Brea Creek Channel | 1950 | 1,205 | Fair |
| Bake Parkway over San Diego Creek | 2011 | 1,200 | Good |
| Valley Street over Carbon Creek Channel | 1960 | 1,200 | Good |
| Walnut Avenue over Harbor Blvd | 1970 | 1,200 | Poor |
| N73-la Paz Rd Off over Moulton Parkway | 1996 | 1,190 | Good |
| N73-la Paz Rd Off over Pacific Park Drive | 1996 | 1,190 | Good |
| Green River Drive over Santa Ana River | 2012 | 1,100 | Good |
| Orange Park Blvd over Handy Creek | 2012 | 1,100 | Good |
| Bonita Cyn-n73 on over Bonita Canyon Drive | 1996 | 1,061 | Fair |
| Riverford Road over Redhill Channel | 1980 | 1,040 | Good |
| Via Noveno over English Canyon Channel | 1976 | 1,025 | Fair |
| Amapola Avenue over Handy Creek | 1937 | 1,000 | Fair |
| Barclay Drive over Anaheim-barber City Chan | 1963 | 1,000 | Fair |
| Calle Nuevo over Prima Deshecha Canada | 1972 | 1,000 | Fair |
| Creekside Drive over Aliso Creek | 1980 | 1,000 | Fair |
| Dallas Drive over Anaheim-barber City Chan | 1963 | 1,000 | Good |
| Fairview-nb On-ra over Nb-harbor Off-ra | 2003 | 1,000 | Fair |
| Glenn Ranch Rd over Aliso Creek Channel | 1992 | 1,000 | Good |
| Iowa Place over Placentia Storm Channel | 1969 | 1,000 | Good |
| Lake Forest Dr over Veeh Creek | 2011 | 1,000 | Good |
| Lake Forest Dr. over Veeh Creek TR1 | 2011 | 1,000 | Good |
| Mac Duff Street over Anaheim-barber City Chan | 1963 | 1,000 | Fair |
| Malden Ave over Fullerton Creek Channel | 1963 | 1,000 | Good |
| Maple Avenue over Bitterbush Channel | 1973 | 1,000 | Good |
| Meads Avenue over Handy Creek | 1985 | 1,000 | Good |
| Mercury Lane over Brea Canyon Channel | 2000 | 1,000 | Good |
| Modjeska Canyon Rd over Santiago Creek | 1935 | 1,000 | Fair |
| Modjeska Canyon Rd over Santiago Creek | 1947 | 1,000 | Good |
| Oil Service over Tidal Inlet Channel | 2006 | 1,000 | Fair |
| Palmwood Drive over Anaheim-barber City Chan | 1963 | 1,000 | Good |
| Quartz Street over E Grdn Grve Wntrsbg Chan | 1997 | 1,000 | Good |
| SR 241 over Tijeras Creek | 1998 | 1,000 | Good |
| Suffolk St over Anhm Barber City Channel | 1973 | 1,000 | Good |
| Woodruff Street over E Grdn Grve Wntrsbg Chan | 1997 | 1,000 | Fair |
| Yorba Place over Carbon Canyon Channel | 1912 | 1,000 | Fair |
| Gilbert Dr over Shelter Channel | 1963 | 900 | Poor |
| Harvard Avenue over Peter Canyon Was Channel | 2008 | 850 | Good |
| Balsam Avenue over Carbon Creek Channel | 1961 | 600 | Good |
| Kenwood Avenue over Carbon Creek Channel | 1961 | 600 | Good |
| Avenida Del Este over Rio Del Oro Channel | 1970 | 550 | Fair |
| Avenida Del Este over Rio Del Oro Channel | 1970 | 550 | Good |
| Portola Pkwy over State Route 241 | 1996 | 510 | Fair |
| Bent Twig Lane over Redhill Channel | 1980 | 500 | Good |
| Biscayne Blvd over Anaheim-barber City Chan | 1963 | 500 | Fair |
| Wakefield Avenue over Anaheim-barber City Chan | 1963 | 500 | Good |
| California Street over Greenville-banning Chnl | 1963 | 300 | Good |
| Jeffrey Road over Jeffrey Open Space Trail | 2014 | 300 | Good |
| Mason Regional Prk over Sand Canyon Wash | 1973 | 300 | Good |
| New Hampshire Dr. over Grnville-banning Channel | 1970 | 300 | Good |
| Fee Ana Street over Atwood Channel | 1965 | 210 | Good |
| Chiquita Cyn Dr over Patrones Pkwy | 2018 | 200 | Good |
| Eoc Road over State Route 241 | 1997 | 200 | Good |
| Kitterman Drive over Silverado Canyon Creek | 1970 | 200 | Fair |
| Park Avenue over Waters Way | 1953 | 200 | Poor |
| Thisa Way over Silverado Canyon Creek | 1965 | 200 | Fair |
| Walnut Ave over Lemon Street | 1978 | 200 | Good |
| Olive Hill Road over Santiago Creek | 1970 | 150 | Good |
| No Data Entered over No Data Entered | 2015 | 125 | Good |
| No Data Entered over Trabuco Creek | 2007 | 125 | Good |
| Stinson Street over Carbon Creek Channel | 1959 | 120 | Good |
| Belha Way over Silverado Canyon Creek | 1963 | 100 | Good |
| Crystal Cove over Los Transcos Creek | 1994 | 100 | Fair |
| Sleepy Hollow over Silverado Creek | 1972 | 100 | Fair |
| Sycamore Drive over Silverado Canyon Creek | 1957 | 100 | Fair |
| Golf Road over Bolsa Chica Channel | 1966 | 50 | Good |
| B Street over San Diego Creek | 1993 | 10 | Good |
| Chevron Service Rd over North Gilbert Street | 1985 | 1 | Good |
| Hicks Cnyn Haul Rd over Santiago Canyon Road | 1995 | 1 | Good |
| Marine Way over Serrano Creek | 2024 | 1 | Good |