| West Chester Bypas over West Chester Pike | 1954 | 150,692 | Fair |
| West Chesterbypass over Paoli Pike (old US 202) | 1954 | 150,692 | Fair |
| US 202 over Valley Forge Road | 1967 | 119,755 | Fair |
| US 202 over West Valley Road | 1967 | 119,755 | Fair |
| US 202 over Ramps Q & R at 422 | 1966 | 95,416 | Fair |
| U.S. 202 over Chester Valley Trail | 2016 | 95,104 | Good |
| U.S. 202 over Planebrook Road | 2016 | 95,104 | Good |
| U.S. 202 over North Valley Road | 2014 | 88,855 | Good |
| US 202 By-pass over Little Valley Creek | 1966 | 88,855 | Fair |
| 202 By-pass Ramps over Branch Valley Creek | 1967 | 85,474 | Fair |
| U.S. 202 over Conestoga Road (PA401) | 2016 | 85,474 | Good |
| US 202 over Valley Creek | 2014 | 85,474 | Fair |
| US 202 over Swedesford Road | 1966 | 84,688 | Fair |
| 30 Bypass over US Route 322 | 1961 | 69,924 | Fair |
| Route 30 By-pass over Creek Rd Brandywine Ck. | 1961 | 69,924 | Poor |
| Route 30 By-pass over Hike/bike Path | 1961 | 69,924 | Fair |
| Route 30 By-pass over Rock Raymond Road | 1961 | 69,924 | Fair |
| US 30 Bypass over Norwood Road | 1961 | 69,924 | Fair |
| US 30 Bypass;rmp F over Bell Tavern Road | 1961 | 68,636 | Fair |
| West Chester Bypas over Westtown Road | 1967 | 68,606 | Fair |
| Pottstown By-pass over Hanover Street | 1965 | 65,464 | Fair |
| Pottstown By-pass over Pottstown Pike | 1966 | 65,464 | Fair |
| Pottstown Bypass over Ramps G & H | 1965 | 59,904 | Fair |
| Pa Tpk (I-76) over East Br.trout Crk | 1950 | 47,120 | Good |
| Pa Tpk (I-76) over Pa Tpk Rp Cd | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over SR 0401 Lr 15139 | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over SR1005 Lr 15050 | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over T-443 (Howell Road) | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over T-466 | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over T-576 (Thomas Rd) | 2023 | 47,120 | Good |
| Pa Tpk (I-76) over T-593 | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over Trib.valley Creek | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over Valley Creek | 1950 | 47,120 | Fair |
| Pa Tpk (I-76) over W. Br. Trout Crk | 1950 | 47,120 | Fair |
| US 202(NB) Ramp R over Rte 30 Ramps S & X | 1995 | 47,019 | Fair |
| Pa Tpk (I-76) over T-616 (Glenhardie Rd) | 2023 | 46,820 | Good |
| Route 30 By-pass over Beaver Creek | 1961 | 46,253 | Fair |
| Route 30 Bypass over Trib. of Beaver Creek | 1961 | 46,253 | Fair |
| US 30 Bypass over Bondsville Rd (rte 340) | 1961 | 46,253 | Fair |
| Pa Tpk (I-76) over SR 0100 | 1950 | 46,178 | Fair |
| Pa Tpk (I-76) over SR 4016 | 1950 | 46,178 | Fair |
| Pa Tpk (I-76) over SR 4031 | 1950 | 46,178 | Fair |
| Pa Tpk (I-76) over T-457 | 1950 | 46,178 | Fair |
| W. Chester Bypass over High Street | 1953 | 42,575 | Fair |
| West Chester Bypas over Bolmar Street (t-349) | 1954 | 42,575 | Fair |
| West Chester Bypas over Branch Chester Creek | 1954 | 42,575 | Fair |
| West Chester Bypas over West Chester RR (septa) | 2011 | 42,575 | Good |
| Pa Tpk (I-76) over SR 0029 LR15050 | 2002 | 42,480 | Fair |
| Pa Tpk (I-76) over SR1003 Norfolk Southern | 2003 | 42,480 | Fair |
| Route 30 By-pass over First Avenue North | 1961 | 41,065 | Fair |
| Route 30 By-pass over Moore Road (T394) | 1961 | 41,065 | Fair |
| US 202 (SB) over West Chester Bypass WB | 1968 | 40,808 | Fair |
| Pa Tpk (I-76) over Marsh Creek | 1950 | 39,934 | Fair |
| Pa Tpk (I-76) over T-396 | 1950 | 39,934 | Fair |
| Pa Tpk (I-76) over Trib. to French Creek | 1950 | 39,934 | Fair |
| Pa Tpk (I-76) over Trib. to Marsh Creek | 1950 | 39,934 | Fair |
| US 202(NB) over West Chester Bypass WB | 1968 | 39,026 | Fair |
| Pa Tpk (I-76) over SR 0422 SR 3039 | 1950 | 37,954 | Fair |
| Pa Tpk (I-76) over SR 0422 SR 3039 | 2023 | 37,954 | Good |
| Pottstown Pike over Valley Creek | 1954 | 36,125 | Poor |
| Pottstown Pike over Downingtown Intchg.rm.vw | 1987 | 35,462 | Good |
| Pottstown By-pass over Laurelwood Road (local) | 1966 | 34,699 | Fair |
| Exton Bypass (EB) over Route US 30 Business | 1961 | 34,319 | Fair |
| US 1 By-pass over W.branch Red Clay Creek | 1965 | 32,115 | Fair |
| West Chester Pike over Ridley Creek | 1960 | 31,261 | Fair |
| Route 30 By-pass over Conrail (abandoned) | 1961 | 30,490 | Fair |
| Route 30 By-pass over Country Club Road (T370) | 1961 | 30,490 | Fair |
| Route 30 By-pass over Old Mill Rd (T358) Buck | 1961 | 30,490 | Fair |
| Route 30 By-pass over Old Wilmington Road | 1961 | 30,490 | Fair |
| Route 30 By-pass over Wagontown Road Rock Run | 1961 | 30,490 | Fair |
| Route 30 By-pass over West Br Brandywine Creek | 1963 | 30,490 | Poor |
| Exton Bypass (WB) over Rte US 30 Business | 1995 | 29,961 | Fair |
| Exton Bypass(wb) over Clover Mill Road | 1995 | 29,961 | Fair |
| Exton Bypass(wb) over Valley Creek | 1995 | 29,961 | Good |
| Exton Bypass(wb) over Whitford Road | 1995 | 29,961 | Good |
| West Chester Pike over Indian Run | 1960 | 28,826 | Fair |
| US 1 By-pass over Md.br.white Clay Creek | 1967 | 28,702 | Fair |
| West Chester Pike over East Br.chester Creek | 1960 | 27,457 | Fair |
| Exton Bypass (EB) over Valley Creek | 1995 | 26,791 | Good |
| Exton Bypass(eb) over Clover Mill Road | 1995 | 26,791 | Good |
| Exton Bypass(eb) over Whitford Road | 1995 | 26,791 | Good |
| Morehall Road over US Rte 202 | 2010 | 25,680 | Good |
| US 1 By-pass over E.branch Red Clay Creek | 1965 | 25,561 | Fair |
| Route 202 (SB) over Amtrak;ramp Eb;dunwoody | 1969 | 25,031 | Good |
| Traffic Route 202 over King Road | 1968 | 25,031 | Fair |
| US 202(SB) Ramp W over Rte 30 Ramps S & X | 1994 | 25,031 | Fair |
| Baltimore Pike over Brandywine Creek | 1937 | 24,552 | Fair |
| Old US-1(BALTIMORE over Ring Run | 1938 | 24,552 | Fair |
| Swedesford Road over Cty.ln.exp;ramp E Sb/wb | 1997 | 24,481 | Fair |
| Route 202 (NB) over Amtrak;ramp Eb;dunwoody | 1969 | 24,392 | Good |
| Traffic Route 202 over King Road | 1968 | 24,392 | Fair |
| Morehall Road over Valley Creek | 1964 | 22,881 | Fair |
| Exton Bypass(eb) over Pottstown Pike | 1995 | 22,730 | Fair |
| Exton Bypass(eb) over Ship Road | 1994 | 22,730 | Good |
| Pottstown By-pass over Schuylkill Road | 1954 | 22,678 | Fair |
| Paoli Pike over Branch Valley Creek | 1948 | 22,103 | Fair |
| Paoli Pike over Norfolk Southern | 1974 | 22,103 | Fair |
| US 1 By-pass (NB) over Church Road | 1965 | 21,979 | Fair |
| US 1 By-pass (NB) over E.frk Br. White Clay CR | 1965 | 21,979 | Fair |
| US-1 Bypass (NB) over W Frk E Br White Clay CR | 1965 | 21,979 | Fair |
| Traffic Route 202 over Green Hill Road | 1968 | 21,748 | Fair |
| Traffic Route 202 over Green Hill Road | 1968 | 21,681 | Fair |
| Exton Bypass(wb) over Ship Road | 1994 | 21,142 | Fair |
| Exton Bypass(wb)rm over Pottstown Pike | 1995 | 21,142 | Fair |
| Uwchlan Avenue over US-30 Bypass | 1961 | 20,197 | Fair |
| Valley Forge Road over Pickering Creek | 1967 | 18,962 | Good |
| Ramp T over US Rte 30 Ramp U | 1995 | 18,960 | Fair |
| Ramp EB over Ramp Q;ramp R | 1995 | 18,864 | Fair |
| Ramp EB over Route 30;RAMPS S & X | 1995 | 18,864 | Fair |
| Pennsylvania Ave. over White Clay Creek | 1927 | 18,776 | Poor |
| Schuylkill Road over French Creek | 1940 | 18,545 | Fair |
| Lancaster Avenue over East Br. Brandywine Ck. | 1921 | 18,163 | Poor |
| US 1 By-pass over West Branch Big Elk CR. | 1968 | 18,144 | Fair |
| Pottstown Pike over Pigeon Creek | 1966 | 18,043 | Fair |
| Boot Road over US Route 202 | 1968 | 17,834 | Poor |
| Lincoln Highway over Amtrak | 1994 | 17,271 | Fair |
| Bondsville Road over Valley Run Creek | 1922 | 17,182 | Fair |
| Uwchlan Avenue over Pa Turnpike(i-76);eb-722 | 2005 | 16,974 | Good |
| Lenape Road over Bennetts Run Pond | 2011 | 16,843 | Good |
| US 1 By-pass (NB) over Newark Road | 1965 | 16,272 | Fair |
| US-1 Bypass (NB) over Mill Road (t-432) | 1965 | 16,272 | Poor |
| Lincoln Highway over W Br Brandywine Creek | 1914 | 16,027 | Poor |
| US-1 Bypass (NB) over Br. E.br. White Clay CR. | 1967 | 15,876 | Fair |
| US-1 Bypass (SB) over Mill Road (t-432) | 1965 | 15,843 | Fair |
| Pottstown Pike over Neiman Road | 1954 | 15,839 | Good |
| Unionville Road over US 1 By-pass | 1965 | 15,621 | Fair |
| US-1 Bypass (SB) over Br. E.br. White Clay CR. | 1967 | 15,434 | Fair |
| East Bridge Street over Schuylkill River | 1922 | 15,400 | Fair |
| Ramp E to 202 SB over Branch of Trout Run | 1967 | 15,355 | Fair |
| Pottstown Pike over Taylor Run | 1953 | 14,887 | Fair |
| Pottstown Pike over W. Chester Bypass (322) | 1955 | 14,887 | Fair |
| Brandywine Avenue over E. Br. Brandywine Creek | 2014 | 14,824 | Good |
| Brandywine Avenue over Mill-race Creek | 1929 | 14,824 | Fair |
| US-1(NB) over Guernsey Road | 1967 | 14,635 | Poor |
| Swedesford Road over US Rte 202 | 2010 | 14,322 | Good |
| US-1(SB) over Guernsey Road | 1967 | 14,067 | Poor |
| Gap-newport Pike over US-1 By-pass | 1965 | 14,054 | Poor |
| East Gay Street over Penn Central (abandoned) | 1960 | 13,640 | Fair |
| Church Road over Branch Buck Run | 1985 | 13,564 | Fair |
| Schuylkill Road over Stony Run Creek | 1942 | 13,454 | Fair |
| US 1 By-pass (SB) over E.frk. Br. White Clay CR | 1965 | 13,382 | Fair |
| US 1 By-pass (SB) over Newark Road | 1965 | 13,382 | Fair |
| US-1 Bypass (SB) over Church Road | 1965 | 13,382 | Good |
| US-1 Bypass (SB) over W Frk E Br White Clay CR | 1965 | 13,382 | Fair |
| Pennsylvania Ave. over Trout Run | 1941 | 13,287 | Fair |
| Phoenixville Pike over Valley Creek | 1996 | 13,150 | Good |
| Valley Forge Road over Norfolk Southern | 1998 | 12,913 | Good |
| Valley Forge Road over Trout Creek | 1967 | 12,913 | Fair |
| E. Lincoln Highway over Valley Creek | 1999 | 12,652 | Fair |
| Newport Pike over Amtrak Main Line E-w | 1954 | 12,616 | Fair |
| Newport Pike over Pine Creek | 2010 | 12,616 | Good |
| Paoli Pike over Chester Creek | 1946 | 12,485 | Fair |
| Schuylkill Road over Pigeon Creek | 1942 | 12,416 | Fair |
| Newport Pike over Limestone Road | 1941 | 12,271 | Fair |
| Downingtown Pike over E. Br. Brandywine Creek | 2020 | 12,126 | Good |
| Downingtown Pike over Valley Creek | 1929 | 12,126 | Poor |
| West Chester Bypas over Taylors Run | 1956 | 11,986 | Fair |
| Old Eagle Schol Rd over US 202 Ramps L & Bc-2 | 2001 | 11,534 | Good |
| US-1 (NB) over East Br. Big Elk Creek | 1967 | 11,436 | Fair |
| Manor Avenue over Beaver Creek | 1934 | 11,422 | Poor |
| Kimberton Road over Pickering Creek | 1961 | 11,359 | Fair |
| Street Road over Pocopson Creek | 1937 | 11,166 | Poor |
| Kimberton Road over Pickering Creek | 1961 | 11,149 | Fair |
| East State Street over East Br. Red Clay Creek | 1962 | 11,141 | Fair |
| Pottstown Pike over French Creek | 1953 | 11,100 | Fair |
| Phoenixville Pike over Pa 100 Bypass | 1968 | 11,069 | Fair |
| Swedesford Road over Bike Path | 2000 | 11,030 | Good |
| Newport Pike over Knights Run | 2012 | 10,974 | Good |
| Newport Pike over Officers Run | 1954 | 10,974 | Good |
| Newport Pike over Valley Creek | 2015 | 10,974 | Good |
| US-1 (SB) over East Br. Big Elk Creek | 1967 | 10,842 | Fair |
| Conestoga Road over Pine Creek | 1960 | 10,840 | Fair |
| Paoli Pike over Phila.electric Company | 1967 | 10,713 | Fair |
| Reeceville Road over US-30 Bypass | 1962 | 10,549 | Fair |
| Pennsylvania Ave over Brandywine Creek | 1986 | 10,500 | Fair |
| Boot Road over Amtrak | 1964 | 10,406 | Poor |
| Street Road over Chester Creek | 2004 | 10,110 | Good |
| Paoli Pike over W. Br. Ridley Creek | 1998 | 9,853 | Good |
| Swedesford Road over Conrail(abandoned) | 1969 | 9,725 | Fair |
| Lenape Road over Branch Plum Run | 1988 | 9,670 | Poor |
| Sproul Road over Nsrc (earnest-glen) | 1998 | 9,670 | Fair |
| Limestone Road over US-1 By-pass | 1968 | 9,650 | Poor |
| Boot Road over Pa 100 Bypass to SB 202 | 1968 | 9,449 | Good |
| Street Road over Branch Chester Creek | 1911 | 9,298 | Fair |
| Street Road over West Chester RR (septa) | 1987 | 9,298 | Good |
| Lincoln Highway over Amtrak | 1997 | 9,294 | Fair |
| South Church Str. over Branch Buck Run Creek | 1986 | 9,220 | Fair |
| Horseshoe Pike over W. Br. Brandywine Creek | 1957 | 9,128 | Fair |
| Pike Springs Road over Branch of French Creek | 1961 | 9,113 | Fair |
| Street Road over Brandywine Creek | 2017 | 8,789 | Good |
| Street Road over Radley Run | 2017 | 8,789 | Good |
| Jennersville Road over Octoraro Railroad | 1980 | 8,748 | Fair |
| State Street over Indian Creek | 2018 | 8,699 | Good |
| East Cypress Str. over East Br.red Clay Creek | 1940 | 8,686 | Fair |
| Ramp E Off SB 202 over US 202 By-pass | 1965 | 8,653 | Fair |
| Street Road over Longwood Gardens Access | 2001 | 8,638 | Good |
| Paoli Pike over Branch Ridley Creek | 1946 | 8,472 | Fair |
| Kaolin Road over W. Branch Red Clay Creek | 1960 | 8,467 | Good |
| South Whitford Rd. over Valley Creek | 1967 | 8,447 | Fair |
| West Chester Pike over Paoli Pike | 1960 | 8,425 | Fair |
| Boot Road over Valley Creek | 1964 | 8,323 | Fair |
| Chestnut Street over Amtrak/norfolk Southern | 2021 | 8,125 | Good |
| Charlestown Road over Pickering Creek | 1969 | 7,961 | Fair |
| Ridge Road over French Creek | 1959 | 7,931 | Fair |
| Ramps C and D over Br of W Br Brandywine Ck | 1963 | 7,836 | Fair |
| Lenape Road over Brandywine Creek | 1902 | 7,797 | Fair |
| Lenape Road over Brandywine Creek Flood | 1912 | 7,797 | Good |
| Pa 100 Bypass over US 202 | 1968 | 7,788 | Fair |
| First Avenue over West Br Brandywine Creek | 1970 | 7,691 | Fair |
| Conestoga Road over Branch Pickering Creek | 1938 | 7,540 | Poor |
| North Valley Road over Valley Creek | 1922 | 7,424 | Fair |
| Lr 328 SR 0082 over Pa Tpk (I-76) | 1950 | 7,289 | Fair |
| Old Baltimore Pike over Middle Br White Clay CR | 1934 | 7,252 | Fair |
| Union Street over East Penn Railroad | 1932 | 7,233 | Fair |
| Lincoln Highway over Buck Run | 1927 | 7,192 | Poor |
| Lincoln Highway over Rte. 30 By-pass EB | 1961 | 7,192 | Fair |
| Baltimore Pike over East Br. Big Elk Creek | 1987 | 7,112 | Fair |
| Christine Road over Octoraro Creek | 1984 | 7,061 | Fair |
| Strasburg Road over East Br.brandywine Creek | 1807 | 7,057 | Fair |
| Airport Road over East Br Chester Creek | 1965 | 7,040 | Fair |
| Strasburg Road over Broad Run | 1959 | 6,997 | Fair |
| Valley Road over Buck Run | 1914 | 6,935 | Poor |
| Baltimore Pike over US 1 By-pass | 1965 | 6,922 | Fair |
| Chester Road over Ridley Creek | 1966 | 6,912 | Fair |
| Strasburg Road over Taylors Run | 1969 | 6,806 | Fair |
| Little Conestoga R over Black Horse Creek | 1973 | 6,755 | Fair |
| Little Conestoga R over Marsh Creek Dam Project | 1972 | 6,755 | Fair |
| Cassatt Road over Norfolk Southern | 1967 | 6,747 | Fair |
| Old Lancaster Road over Amtrak (phila to Pitt) | 1957 | 6,733 | Fair |
| Creek Road over E.br. Brandywine Creek | 1974 | 6,730 | Fair |
| Old Route 23 over French Creek | 1983 | 6,706 | Fair |
| Old Baltimore Pike over Br.of East Br.white Clay | 1937 | 6,672 | Poor |
| Main Street over French Creek | 1847 | 6,616 | Good |
| Phoenixville Pike over Branch Pickering Creek | 1921 | 6,477 | Fair |
| Black Rock Road over Schuylkill River | 1916 | 6,319 | Fair |
| Gay Street over French Creek Local Roads | 2009 | 6,319 | Good |
| State Road over Pickering Creek | 2001 | 6,298 | Good |
| Jennersville Road over US-1;BYPASS | 1967 | 6,282 | Fair |
| Lloyd Ave (t-340) over Beaver Creek | 1919 | 6,248 | Fair |
| West Cypress St over West Br. Red Clay Creek | 1940 | 6,163 | Fair |
| Honey Brook Road over West Br.brandywine Creek | 1928 | 6,155 | Fair |
| Linfield Bridge over Schuylkill River | 1932 | 5,993 | Fair |
| Lancaster Pike over US Route 1 Bypass | 1968 | 5,947 | Fair |
| Pottstown Pike over Route 100 | 1968 | 5,774 | Fair |
| Downingtown Pike over Taylors Run | 1928 | 5,723 | Fair |
| West State Street over West Br. Red Clay Creek | 1929 | 5,713 | Fair |
| White Horse Road over Pickering Creek | 2011 | 5,555 | Good |
| East Christine Rd. over East Penn Railroad | 1985 | 5,547 | Fair |
| East Christine Rd. over Northeast Creek | 1967 | 5,547 | Fair |
| Manor Road over W.br.of Brandywine Creek | 1961 | 5,504 | Fair |
| Valley Forge Road over Pa Turnpike (I-76) | 2009 | 5,474 | Good |
| Waterloo Road over Darby Creek | 1908 | 5,415 | Poor |
| Airport Road over Route 30 By-pass | 1961 | 5,411 | Poor |
| North Valley Road over Amtrak - Main Line | 1983 | 5,330 | Fair |
| North Valley Road over Branch Valley Creek | 1970 | 5,330 | Good |
| Ramp O over Ramps L N Q R S | 2001 | 5,305 | Good |
| Hillendale Road over East Br of Red Clay CR | 1984 | 5,292 | Good |
| Swedesford Road over US 202 Bypass | 2008 | 5,238 | Fair |
| Schuylkill Road over Eckers Creek | 2022 | 5,108 | Good |
| Newark Road over East Branch Big Elk Crk | 1922 | 5,026 | Poor |
| Swedesford Road over Little Valley Creek | 1967 | 5,016 | Fair |
| Longwood Gdns Ramp over Baltimore Pike | 1962 | 5,000 | Fair |
| Kings Highway over W. Br. Brandywine Creek | 1935 | 4,970 | Poor |
| Baltimore Pike over Br.w.br Big Elk CR. | 1924 | 4,935 | Fair |
| Doe Run Road over Doe Run | 1932 | 4,881 | Poor |
| Manor Road over Indian Run | 1910 | 4,787 | Fair |
| Newark Road over US-1 By-pass | 1967 | 4,727 | Fair |
| Christine Road over US 1 By-pass | 1967 | 4,666 | Fair |
| West Valley Road over Norfolk Southern RR | 1996 | 4,527 | Fair |
| New Garden Sta Rd over East Br White Clay Creek | 1984 | 4,524 | Fair |
| Municipal Drive over Unt to Beaver Creek | 2023 | 4,500 | Good |
| West South Street over West Br Red Clay Creek | 1980 | 4,267 | Fair |
| N Bailey Rd (T443) over US-30 Bypass | 1961 | 4,227 | Fair |
| Gulph Road over Trout Creek | 2008 | 4,094 | Good |
| Strasburg Road over W.br.brandywine Creek | 1826 | 4,084 | Fair |
| Kings Highway over US 30 By Pass | 1961 | 4,078 | Fair |
| Church Road over US-202 Bypass Ramp M | 2008 | 4,064 | Fair |
| G O Carlson Blvd. over Valley Run | 2001 | 4,000 | Fair |
| GO Carlson Blvd. over Valley Run | 2001 | 4,000 | Fair |
| Valley Creek Blvd. over Valley Creek | 2002 | 4,000 | Fair |
| Dowlins Forge Rd. over East Br Brandywine Creek | 1941 | 3,954 | Fair |
| Manor Road over East Br Brandywine Creek | 1950 | 3,807 | Poor |
| Glencrest East Rd. over W Br Brandywine Creek | 1923 | 3,775 | Fair |
| Ellis Lane over Tributary of Chester Cre | 1974 | 3,764 | Good |
| Cedar Hollow Road over US 202 | 2009 | 3,629 | Good |
| Cedar Hollow Road over Valley Creek | 1993 | 3,629 | Fair |
| Spring City Road over Stony Run | 1958 | 3,554 | Poor |
| Rapps Dam Road over French Creek | 1866 | 3,524 | Good |
| Shoen Road over Branch of Valley Creek | 1960 | 3,500 | Fair |
| West Bridge Street over Stoney Run Creek | 1950 | 3,497 | Poor |
| Dorlan Mill Road over East Br Brandywine Creek | 1931 | 3,479 | Fair |
| Bethel Church Road over Pigeon Creek | 1969 | 3,440 | Fair |
| Strode Avenue over Sucker Run | 1933 | 3,377 | Fair |
| Hares Hill Road over French Creek | 1867 | 3,326 | Fair |
| Highland Rd (T440) over Taylor Run | 1984 | 3,326 | Fair |
| Oxford Road over E.br.big Elk Creek | 1970 | 3,323 | Fair |
| Bulltown Road over South Br French Creek | 1962 | 3,267 | Fair |
| Waterloo Blvd. over Br.of Valley Creek | 1990 | 3,200 | Fair |
| Marshall Road over E. Br. Brandywine Creek | 1999 | 3,188 | Fair |
| Lower Valley Road over Officers Run | 2023 | 3,021 | Good |
| Chesterbrook Blvd. over US 202 | 1980 | 3,000 | Fair |
| North Bailey Road over Tributary of Beaver Run | 2007 | 3,000 | Good |
| North Bailey Road over Valley Run | 1981 | 3,000 | Fair |
| Fernhill Road over US 202 | 1968 | 2,994 | Fair |
| Seven Stars Road over French Creek | 1856 | 2,994 | Poor |
| Dilworthtown Road over Chester Creek | 1990 | 2,968 | Good |
| Walnut Street over East Branch Red Clay CR. | 1923 | 2,912 | Fair |
| Mill Road over Valley Creek | 1912 | 2,897 | Fair |
| Doe Run Road over Buck Run | 1926 | 2,896 | Poor |
| Dowlin Forge Road over Shamona Creek | 1915 | 2,866 | Fair |
| Oxford Road over West Branch Big Elk CR. | 1989 | 2,820 | Good |
| Creek Road over Branch Brandywine Creek | 1935 | 2,802 | Poor |
| Dowlin Forge Road over Shamona Creek | 1965 | 2,800 | Fair |
| Norwood Road over Branch Brandywine Creek | 1990 | 2,800 | Fair |
| Octorara Road over Buck Run | 1940 | 2,800 | Poor |
| Norwood Road over Ludwigs Run | 2005 | 2,764 | Good |
| Buck Run Road over Buck Run | 1929 | 2,763 | Fair |
| Kings Highway over US 30 By Pass | 1961 | 2,741 | Fair |
| Walnut Road (T422) over US-1 By-pass | 1965 | 2,739 | Fair |
| East Strasburg Rd over Ridley Creek | 1970 | 2,677 | Fair |
| Creek Road over Taylors Run | 1914 | 2,669 | Fair |
| Chesterville Road over Big Elk Creek | 2000 | 2,653 | Good |
| Avondale New Londn over Middle White Clay Creek | 1987 | 2,596 | Good |
| SR 0345 LR15144 over Pa Tpk (I-76) | 2022 | 2,575 | Good |
| Newark Road over Muddy Run | 1932 | 2,551 | Poor |
| Westbourne Road over Chester Creek | 2000 | 2,521 | Good |
| Westbourne Road over Chester Creek | 1999 | 2,521 | Fair |
| Chestnut Tree Road over E. Br. Brandywine Creek | 2005 | 2,498 | Good |
| Swan Road over Officers Run | 1937 | 2,480 | Fair |
| Wawaset-unionville over West Br Brandywine Creek | 1987 | 2,478 | Fair |
| Barnsley Chrome Rd over Unt Northeast Creek | 2022 | 2,469 | Good |
| Swan Road over Officers Run | 1916 | 2,465 | Fair |
| Bridge Road over E.br.brandywine Creek | 1952 | 2,461 | Fair |
| Wickerton Road over Mid. Br. White Clay CR. | 1961 | 2,453 | Fair |
| Swedesford Road over Ramp F to US 202 N.B. | 1967 | 2,407 | Fair |
| Thornton Road over Branch Chester Creek | 2007 | 2,373 | Good |
| Walker Road (T431) over Trout Creek | 2016 | 2,372 | Good |
| Mill Lane (t-488) over US Route 202 | 2007 | 2,338 | Good |
| Pughtown Road over French Creek | 1937 | 2,334 | Fair |
| Northbrook Road over Broad Run Creek | 1987 | 2,322 | Fair |
| Westtown Way over East Branch Chester Crk. | 1916 | 2,300 | Fair |
| Byers Road over Pickering Creek | 1935 | 2,283 | Fair |
| Chaddsford Road over Branch Brandywine Creek | 1860 | 2,283 | Fair |
| Northbrook Road over W. Br. Brandywine Creek | 1953 | 2,249 | Poor |
| Embreeville Road over W. Br. Brandywine Creek | 1923 | 2,237 | Fair |
| Westtown Road over East Br Chester Creek | 2004 | 2,226 | Good |
| Shadyside Road over Broad Run | 2010 | 2,200 | Good |
| South Guernsey Rd. over Middle Br. White Clay CR | 1985 | 2,137 | Fair |
| Howellville Road over Norfolk Southern Corp | 2021 | 2,104 | Good |
| Good Hope Road over White Clay Creek | 1961 | 2,095 | Fair |
| Broad Run Road over E. Br. White Clay Creek | 2013 | 2,077 | Good |
| Broad Run Road over Broad Run Creek | 1931 | 2,049 | Poor |
| Church Road over Valley Creek | 2015 | 2,027 | Good |
| Fairview Road over E. Br. Brandywine Creek | 1973 | 2,022 | Good |
| Ramp AB & Ramp D over SR 1016 & Atwater Drive | 2012 | 2,000 | Good |
| Ramp AB over Pa Tpk (I-76) | 2012 | 2,000 | Good |
| Ramp C over Atwater Drive | 2012 | 2,000 | Good |
| Ramp C over SR 1016 | 2012 | 2,000 | Good |
| Richards Road over Trout Creek | 1999 | 2,000 | Fair |
| Fairview Road over Marsh Creek | 1939 | 1,995 | Poor |
| Edges Mill Road over Beaver Creek | 1916 | 1,979 | Fair |
| Edges Mill Road over Branch Beaver Creek | 1974 | 1,979 | Poor |
| Telegraph Road over Broad Run | 2005 | 1,975 | Good |
| Penn Green Road over White Clay Creek | 1974 | 1,948 | Fair |
| Creek Road over Culbertson Run | 1968 | 1,938 | Fair |
| Lewis/chesterville over W. Br. White Clay Creek | 1986 | 1,928 | Fair |
| Hillendale RD;T337 over West Br Red Clay Creek | 1932 | 1,920 | Fair |
| Harveys Bridge Rd over W. Br. Brandywine Creek | 1926 | 1,897 | Poor |
| Thomas Road (T576) over Trout Creek | 1925 | 1,896 | Fair |
| Dutton Mill Road over Ridley Creek | 1922 | 1,886 | Fair |
| White Horse Road over Crum Creek | 1998 | 1,874 | Good |
| Whitehorse Road over Crum Creek | 1904 | 1,874 | Fair |
| Ramp P over Ramps L N Q | 2001 | 1,839 | Fair |
| Mill Road (T540) over Valley Creek | 1867 | 1,831 | Poor |
| Grubbs Mill Road over Crum Creek | 1921 | 1,797 | Fair |
| Birch Street over East Branch Red Clay CR. | 1926 | 1,777 | Poor |
| Church Rd (t-500) over Trib. to Valley Creek | 2014 | 1,770 | Good |
| Bondsville Road over Beaver Creek | 1966 | 1,690 | Fair |
| East Reeceville Rd over Beaver Creek | 2009 | 1,672 | Fair |
| Coventryville Road over French Creek | 1837 | 1,662 | Fair |
| Copeland School Rd over Broad Run | 1975 | 1,654 | Fair |
| Third Street over East Br.white Clay Creek | 1912 | 1,642 | Fair |
| Guthriesville Road over Culbertson Run | 1932 | 1,635 | Fair |
| South Birdell Road over West Br Brandywine Creek | 1998 | 1,630 | Fair |
| Hopewell Road over US-1 By-pass | 1968 | 1,615 | Fair |
| State Road over Middle Br.white Clay CR. | 1992 | 1,614 | Good |
| Yellow Springs Rd. over Valley CR. 3365-g7 | 1865 | 1,604 | Fair |
| Hopewell Road over Branch Tweed Creek | 2004 | 1,587 | Good |
| Hopewell Road over Tweed Creek | 1998 | 1,587 | Good |
| Reservoir Road over Trib to Chester Creek | 1920 | 1,575 | Good |
| Flint Hill Road over W Br. White Clay Creek | 1923 | 1,530 | Fair |
| Bancroft Rd (T454) over US-1 By-pass | 1965 | 1,507 | Fair |
| Main Street over Valley Creek | 2012 | 1,501 | Good |
| Bayard Road over East Br. Red Clay Creek | 1992 | 1,500 | Fair |
| Bridge Street over Amtrak (hbsg. Branch) | 1991 | 1,500 | Good |
| Telegraph RD(T435) over West Br.brandywine Creek | 1983 | 1,498 | Fair |
| Valley Creek Road over Valley Creek | 1923 | 1,497 | Fair |
| Spring Dell Road over Buck Run | 1969 | 1,494 | Fair |
| Spring Dell Road over Doe Run | 1966 | 1,494 | Fair |
| Harmony Hill Road over Valley Creek | 1918 | 1,492 | Poor |
| Marshall Bridge Rd over Red Clay Creek | 1936 | 1,485 | Fair |
| Cedar Knoll Road over W Br Brandywine Creek | 2004 | 1,471 | Good |
| 5TH Street over Little Elk Creek | 2022 | 1,456 | Good |
| Township Road over W. Branch Big Elk Creek | 1924 | 1,431 | Poor |
| Porters Mill Road over Pigeon Creek | 1928 | 1,430 | Fair |
| Cupola ROAD(T376) over East Br Brandywine Creek | 1983 | 1,425 | Fair |
| Bradford Road over Valley Creek | 1985 | 1,400 | Fair |
| Styer Road over Marsh Creek | 1905 | 1,399 | Fair |
| Auburn Road over East Br White Clay Creek | 1984 | 1,396 | Fair |
| Allerton Road over E Br of Brandywine Creek | 1905 | 1,361 | Poor |
| Unionville Road over Pocopson Creek | 1923 | 1,356 | Fair |
| Old Stottsville Rd over Branch Buck Run | 1960 | 1,333 | Fair |
| Lewisville Road over Hodgson Run | 1998 | 1,306 | Good |
| Lewisville-chester over Hodgson Run | 1985 | 1,296 | Fair |
| Morstein Rd (T387) over Traffic Route 202 | 1968 | 1,278 | Fair |
| Little Elk Crk Rd over Big Elk Creek | 1981 | 1,265 | Fair |
| Township Line Road over West Br of Red Clay Crk. | 1982 | 1,236 | Fair |
| Pikeland AVE(T467) over Stony Run | 1916 | 1,235 | Fair |
| Suplee Road over East Br Brandywine Creek | 1937 | 1,212 | Fair |
| Chatham Road over Branch White Clay Creek | 1916 | 1,211 | Fair |
| Chatham Road over US 1 Bypass | 1967 | 1,194 | Fair |
| Merlin Road over Pickering Creek | 1961 | 1,162 | Fair |
| Merlin Road over Pigeon Run | 2024 | 1,162 | Good |
| Baker Station Road over E Br White Clay Creek | 1986 | 1,157 | Fair |
| Lit. Washington Rd over Culbertson Run | 2022 | 1,154 | Good |
| Lt Washington Road over Culbertson Run | 1903 | 1,154 | Fair |
| Ltl.washington Rd. over Culbertson Run | 1941 | 1,154 | Fair |
| Pusey Mill Road over E. Branch Big Elk Creek | 1921 | 1,154 | Poor |
| Pocopson Road over Pocopson Creek | 1929 | 1,148 | Fair |
| State Road over Little Elk Creek | 2018 | 1,147 | Good |
| North Reeds Road over E Br Brandywine Creek | 1939 | 1,146 | Poor |
| Creek Road over East Br Red Clay Creek | 1938 | 1,145 | Good |
| Stoney Run Road over Stoney Run Creek | 1926 | 1,122 | Fair |
| Landenberg Road over East Br. White Clay Crk | 2010 | 1,119 | Good |
| Springton Road over Indian Run Creek | 2010 | 1,108 | Fair |
| Broad Street over East Penn Railroad | 1914 | 1,100 | Fair |
| Font Road over Black Horse Creek | 1990 | 1,100 | Good |
| Forge Road over US-1 By-pass | 1968 | 1,084 | Fair |
| Scroggy Road over US-1 By-pass | 1968 | 1,083 | Fair |
| On-ramp to SR 3100 over Taylor Run | 1955 | 1,070 | Fair |
| Strasburg Road over Officers Run | 1938 | 1,068 | Fair |
| Scroggy Road over Branch Leech Run | 1937 | 1,065 | Fair |
| Harmony Hill Road over E Br of Brandywine Creek | 1872 | 1,061 | Fair |
| Creek Road over Plum Creek | 1960 | 1,057 | Fair |
| State Road over Big Elk Creek | 2001 | 1,026 | Good |
| Kirkland AVE(T387) over Route 100 | 1968 | 1,017 | Fair |
| Beaumont Road over Darby Creek | 1990 | 1,000 | Good |
| N New Street over Taylor Run | 1940 | 1,000 | Fair |
| Oakbourne Road over Goose Creek | 2020 | 1,000 | Good |
| Prospect Avenue over Beaver Creek | 1980 | 1,000 | Good |
| Starr Road over Whiskey Run | 2000 | 1,000 | Good |
| Williamsburg Blvd. over Br. Brandywine Creek | 1990 | 1,000 | Fair |
| London Tract Road over White Clay Creek | 2005 | 981 | Good |
| Hephzibah Hill Rd. over Dennis Run | 1989 | 978 | Fair |
| Union Street over W. Br. Brandywine Creek | 2011 | 978 | Good |
| Pusey Mill Road over E.branch Big Elk Creek | 2014 | 973 | Good |
| East Boot Road over Ridley Creek | 1970 | 970 | Good |
| Watson Mill Road over Broad Run | 1915 | 959 | Fair |
| T-523 over Pa TPK I-76 | 2022 | 947 | Good |
| Horse Shoe Trail over Birch Run | 1940 | 920 | Fair |
| Pusey Mill RD(T337 over US 1 By-pass | 1967 | 911 | Fair |
| Ellis Woods Road over Pigeon Creek | 1950 | 910 | Poor |
| Pine Swamp Road over Pine Creek | 2010 | 908 | Fair |
| Fairview Road over Beaver Run | 2010 | 892 | Good |
| Brandamore RD;T439 over West Br Brandywine Creek | 1980 | 868 | Fair |
| Township Road over Route 1 By-pass | 1968 | 854 | Fair |
| Marlboro Road over Pocopson Creek | 1970 | 850 | Good |
| Dowlin Forge Road over Shamona Creek | 1942 | 840 | Fair |
| Buckwalter Road over Stony Creek | 1931 | 833 | Fair |
| Wagontown Road over Branch Rock Run | 1960 | 833 | Fair |
| Wagontown Road over Railroad Wilmington Br. | 1916 | 833 | Poor |
| Wagontown Road over West Br of Brandywine CR | 1918 | 833 | Poor |
| Water Works Road over Rock Run | 1973 | 833 | Poor |
| Green Street over Parke Run | 1990 | 800 | Good |
| N Five Points Road over E Br of Chester Creek | 1990 | 800 | Fair |
| North Penn Drive over West Chester By-pass | 1955 | 800 | Fair |
| Southwind Ln over Conrail (track Removed) | 2001 | 800 | Fair |
| Worthington Road over Pine Creek | 1980 | 800 | Fair |
| Mineral Springs Rd over Rock Run | 1959 | 787 | Fair |
| Chesterville Road over Middle Br White Clay Crk | 1991 | 759 | Fair |
| Lees Bridge Road over Black Run Creek | 2011 | 757 | Good |
| East Locust Lane over E. Br. Red Clay Creek | 2023 | 750 | Good |
| Locust Grove Road over Branch Pocopson Creek | 1966 | 750 | Fair |
| Rosedale RD.(T628) over E. Branch Red Clay Crk | 1954 | 750 | Fair |
| Skelp Level Road over Nsrc (track Removed) | 1927 | 750 | Poor |
| Wagontown Road over West Br Brandywine Creek | 1966 | 741 | Fair |
| Wagontown Road over West Br.brandywine Creek | 1928 | 741 | Fair |
| Strickersville Rd. over Big Elk Creek | 1938 | 725 | Poor |
| Contention Lane over Chester Valley Trail | 1900 | 720 | Fair |
| Creek ROAD(T542) over Pickering Creek | 1879 | 719 | Poor |
| Park ROAD(T307) over US 1 By-pass | 1968 | 718 | Good |
| Art School Road over Branch Pickering Creek | 1920 | 695 | Poor |
| Art School Road over Branch Pickering Creek | 1920 | 695 | Poor |
| Yellow Springs Rd. over Pickering Creek | 2006 | 695 | Good |
| Clover Mill Road over Pickering Creek | 2009 | 693 | Fair |
| Pikeland Road over Pigeon Creek | 1943 | 693 | Fair |
| Cambridge Road over Honey Brk.w.br.brandywin | 1910 | 668 | Poor |
| Creek Road over East Br Brandywine Creek | 2019 | 666 | Good |
| Hollow Road over French Creek | 1850 | 660 | Fair |
| Mill ROAD(T402) over West Br Red Clay Creek | 1889 | 659 | Fair |