| Penn Linc Pw over Buswy Arch Bell Poc RR | 1952 | 99,372 | Fair |
| Penn Linc Pw over SR50 Wle RR Chartiers Ck | 1950 | 99,372 | Fair |
| Parkway West over Campbells Run Road | 1973 | 96,254 | Good |
| Penn Lincoln Py over Campbells Run | 1972 | 96,254 | Fair |
| SR 0279 NB SB over Suffolk St. | 1987 | 88,452 | Fair |
| 376 Eb-wb over Poplar Avenue | 1952 | 87,163 | Good |
| Penn Lincoln Pw over Whiskey Run Bell Rd | 1953 | 87,163 | Fair |
| Parkway West over Saw Mill Run | 1952 | 86,514 | Fair |
| Penn Lincoln Pkwy over Banksville Rd. S.B. | 1953 | 85,962 | Good |
| I-376 over CSX RR Swineburn Frazier | 1951 | 85,678 | Fair |
| Parkway East over Saline Street | 1951 | 85,678 | Fair |
| Parkway East over SR 8010 Ramp B | 1951 | 85,477 | Fair |
| Parkway East over Braddock Ave | 1951 | 79,494 | Fair |
| SR 28 Nb-sb over SR 8046 Ramp A | 1963 | 79,106 | Good |
| Parkway West over Mcmichael Road | 1951 | 77,308 | Fair |
| Penn Lincoln Pkwy over Bates Street | 1952 | 77,075 | Fair |
| Penn Lincoln Pkwy over Ramp B (bates St) | 1952 | 77,075 | Fair |
| Parkway East over Ramp A WB | 1961 | 73,349 | Fair |
| Parkway East over Beulah Road | 1950 | 69,636 | Fair |
| Veterans Bridge over Allegheny River | 1986 | 66,110 | Fair |
| I-376 over Commercial St. & Nine Mi | 1950 | 65,232 | Fair |
| Parkway East over Forward Ave Ramp H | 1952 | 65,232 | Fair |
| Parkway East over Sq Hill Tn Vult | 1955 | 65,232 | Fair |
| Penn Lincoln Py over Rodi Road Nb&sb | 1962 | 63,288 | Fair |
| Parkway West over Cliffmine Rd Montour Rn | 1949 | 62,719 | Fair |
| SR 0079 NB SB over Coal Run Creek | 1965 | 58,696 | Fair |
| Neville Island Brg over CSX RR NS RR Ohio River | 1976 | 56,299 | Good |
| SR 0079 NB SB over Moon Run | 1972 | 56,299 | Fair |
| I376 over Ardmore Blvd. | 1951 | 54,792 | Fair |
| Penn Lincoln Py over Lr 763-ramp G | 1950 | 54,792 | Fair |
| Penn Lincoln Py over SR 8012-ramp A | 1950 | 54,792 | Fair |
| I-376 over Sunset Drive | 1962 | 52,457 | Fair |
| I-376 over Union RR Thompson Run | 1962 | 52,457 | Fair |
| Parkway East Hw over Old William Penn Highway | 1962 | 52,457 | Fair |
| Parkway East over Old Wm Penn Hwy Leak Run | 1962 | 52,457 | Poor |
| Saw Mill Run Blvd over Saw Mill Run | 1999 | 51,232 | Good |
| Mcknight Rd over Babcock Blvd Girdys Run | 1946 | 50,212 | Poor |
| Mcknight Rd over Nelson Run Road | 1946 | 50,212 | Fair |
| SR 19 over 65 Nb&sb Ramp H & Ramp C | 1991 | 50,091 | Fair |
| West End Bridge over Ohio River CSX RR | 1930 | 50,091 | Fair |
| Raymond Shafer Hw over Moon Run | 1971 | 49,845 | Fair |
| Highland Park Appr over SR 0008 | 1940 | 49,653 | Fair |
| Highland Park Brg over Freeport Rd | 1938 | 49,653 | Good |
| Highland Park Brg over NS RR Allegh R Avr RR | 1940 | 49,653 | Fair |
| Raymond E Wilt Hw over Bear Run | 1987 | 49,413 | Fair |
| Raymond E Wilt Hw over Lowries Run | 1987 | 49,413 | Good |
| Fort Pitt Bridge over Mon R NS RR SR 0837 | 1959 | 49,101 | Fair |
| SR 376 WB Ramp B over LR1039 Rp A(f) Mon River | 1958 | 49,101 | Fair |
| US 0022 EB WB over Thompson Run | 1943 | 48,716 | Fair |
| SR 0065 SH over TUNNEL REEDSDALE- Ridge | 1968 | 48,304 | Fair |
| Mcknight Rd over Mcknight Run | 1946 | 46,766 | Fair |
| Pa Tpk (I-76) over T-423 Abers Creek Road | 1952 | 46,261 | Fair |
| Pa Tpk (I-76) over Turtle Creek | 1952 | 46,261 | Fair |
| Pa Tpk (I-76) over Turtle Creek RR | 1952 | 46,261 | Fair |
| Pa Tpk (I-76) over PA TPK (Ramp BC) | 2011 | 46,240 | Good |
| Penn Lincoln Pkwy over Brady Street | 1956 | 46,230 | Fair |
| SR 0028 SB over Ramp B | 1963 | 45,228 | Fair |
| SR0028@MILLVALE over RAMPB/AND/02400900201211 | 1960 | 45,228 | Fair |
| Fort Pitt Bridge over Mon R NS RR SR 0837 0376 | 1960 | 45,176 | Fair |
| I-376 EB over Mon River & Warf 376 WB | 1953 | 45,176 | Fair |
| I-376 EB over Mon River & Warf 376 WB | 1953 | 45,176 | Fair |
| Raymond Shafer Hw over SR 4051 Mingo Rd | 1972 | 43,229 | Fair |
| Liberty Bridge over Mon R I376 0837 2 Av Arl | 1928 | 42,292 | Fair |
| West Liberty Ave over Saw Mill Run | 1926 | 42,292 | Fair |
| SR 28 SB over Delafield Rd.-lexington | 1965 | 42,071 | Good |
| Raymond Shafer Hw over Mingo Rd | 1972 | 41,949 | Fair |
| Parkway East over Second Ave | 1953 | 41,597 | Fair |
| Saw Mill Run Blvd over Saw Mill Run | 1999 | 41,549 | Good |
| SR 0028 NB over Center Ave. | 1965 | 41,487 | Good |
| SR 28 NB over Lexington & Delafield | 1965 | 41,487 | Fair |
| SR 0028 SH over SR 1007-ravine St. | 1963 | 41,269 | Fair |
| SR 0028 SH over Scout Reservation Road | 1963 | 41,269 | Good |
| SR 28 NB over Kittanning Pike Creek | 1963 | 41,269 | Good |
| SR 28 NB over SR.8 Nb/sb N.main RR Sp. | 1960 | 41,269 | Good |
| Allegheny Val. Ex over Crawford Run Rd/crk | 1976 | 41,247 | Fair |
| 00 0028 S.B. over Scout Reservation Road | 1963 | 40,992 | Good |
| Allegheny Val Expy over Ravine St | 1963 | 40,992 | Fair |
| SR 28 SB over Kittanning Pike Seitz Ru | 1963 | 40,992 | Good |
| SR 28 SB over Rt 8 Nb/sb Rt 8 Rmps | 1960 | 40,992 | Fair |
| SR 0279 SB over SR 4003 4009 & Ramp J | 1986 | 40,777 | Fair |
| SR 0051 NB SB over Saw Mill Run | 1941 | 40,495 | Fair |
| Saw Mill Run Blvd over Saw Mill Run | 1929 | 40,495 | Fair |
| I-376 EB over Brady Street& Ped. Trail | 1956 | 40,109 | Fair |
| Raymond Shafer Hw over Pitt-ind RR Robinson Ru | 1972 | 39,428 | Good |
| SR 0279 NB SB over Walkway to Point St Park | 1968 | 39,362 | Fair |
| US 0022 EB WB over Abers Creek | 1943 | 39,026 | Fair |
| SR 19 over SR 60 @ SR 19 Inter | 2010 | 38,977 | Good |
| Pa Tpk (I-76) over Beatty Road | 1952 | 38,689 | Good |
| Pa Tpk (I-76) over Cn RR | 1950 | 38,689 | Fair |
| Pa Tpk (I-76) over Hulton Rd | 1952 | 38,689 | Fair |
| Pa Tpk (I-76) over SR 0022 LR187 | 1952 | 38,689 | Fair |
| Pa Tpk (I-76) over SR 2084 Milltown Road | 1952 | 38,689 | Fair |
| Pa Tpk (I-76) over SR 2086 Plum CR Abandrr | 1952 | 38,689 | Fair |
| Pa Tpk (I-76) over T-732 | 1952 | 38,689 | Good |
| Pa Tpk (I-76) over T-746 | 1952 | 38,689 | Fair |
| Pa Tpk (I-76) over T-911 | 1952 | 38,689 | Poor |
| Pa Turnpike (I-76) over Plum Creek | 1952 | 38,689 | Poor |
| Interstate 376 WB over Abdn RR 2ND Ave 10TH St | 1956 | 37,791 | Fair |
| Raymond Shafer Hw over 8017 Ramp A & SR 4033 | 1975 | 37,667 | Fair |
| SR 0028 SB over Center Ave | 1965 | 37,634 | Good |
| Saw Mill Run Blvd over W Liberty Ave. SR 3069 | 1999 | 36,949 | Good |
| Tarentum Bridge over NSRR (Abdn) Allegheny R | 1949 | 36,878 | Fair |
| William Flynn Hwy over West Branch Deer Creek | 2018 | 36,107 | Good |
| SR 0028 SB over Madison Avenue City Pgh | 1986 | 35,832 | Fair |
| Crosstown Bl over Fifth Ave | 1962 | 35,432 | Fair |
| I-579 NB over N-s RR Pat Lrt Pat Ebswy | 1986 | 35,432 | Fair |
| I-579 NB over SR28 8108 East Ohio St. | 1988 | 35,432 | Fair |
| Raymond Shafer Hw over Noblestown Rd. | 1972 | 35,339 | Good |
| Raymond Shafer Hw over Thoms Run Rd Flood Chan. | 1965 | 35,339 | Fair |
| Homestd Highlvl Br over Mon CSX N&S Wf Dr 5&7 | 1936 | 35,235 | Fair |
| Raymond P Shafe Hw over Thoms Run Rd Flood Chann | 1965 | 35,133 | Fair |
| SR 0079 SB over Warrendale Bayne Rd | 1974 | 35,092 | Fair |
| SR 28 NB over Bridge St. | 1962 | 34,968 | Fair |
| Allegheny Valle Ex over Bull Creek | 1982 | 34,449 | Fair |
| Raymond Shafer Hw over Pa Turnpike | 1976 | 34,286 | Fair |
| SR 0079 NB over SR 4052 W. Bayne Road | 1974 | 34,286 | Fair |
| SR 79 NB over SR 0019 | 1976 | 34,286 | Fair |
| SR 65 over Eckert Street | 1930 | 34,250 | Fair |
| SR 65 over State Ramps RR. Chateau | 1971 | 34,250 | Fair |
| Pa Tpk Ramps B&c over Pa Tpk (I-76) | 1952 | 34,209 | Fair |
| Pa Tpk (I-76) over Mt. Pleasant Road | 2021 | 34,106 | Good |
| SR 0028 SB over (4009) Rp B & Bridge St | 1963 | 33,878 | Fair |
| Parkway East over SR 2110 SH | 1950 | 33,644 | Fair |
| Pa Tpk (I-76) over Deer Creek | 1952 | 33,531 | Fair |
| Pa Tpk (I-76) over Deer Creek | 2016 | 33,531 | Good |
| Pa Tpk (I-76) over Deer Creek | 2016 | 33,531 | Good |
| Pa Tpk (I-76) over Shafers Run | 1952 | 33,531 | Fair |
| Pa Turnpike Ramp F over SR 1001 NB | 1952 | 33,531 | Good |
| Mckees Rocks Br over Munson Ave. | 1931 | 33,500 | Fair |
| SR 0028 SB over SR 1001 Butler St. | 1960 | 33,049 | Good |
| SR 28 SB over CSX (avrr) | 2009 | 33,049 | Good |
| Bull Creek Rd over Little Bull Creek | 1982 | 32,993 | Fair |
| Raymond Shafer Hw over SR 0051 at Groveton | 1974 | 31,848 | Good |
| Saw Mill Run Blvd over Weyman Run | 2015 | 31,410 | Good |
| Rt 0008 NB SB over Pine Creek | 1925 | 31,339 | Fair |
| Rt 0008 NB SB over Pine Creek Near Flood Ch | 1925 | 31,339 | Fair |
| Elizabeth Bridge over SR837 2001 CSX NS Mon Ri | 1951 | 31,260 | Fair |
| Pa Tpk (I-76) over SR 4052 Lr 02225 | 2012 | 31,140 | Good |
| Pa Tpk (I-76) over SR 4068 | 2012 | 31,140 | Good |
| Pa Tpk (I-76) over T-600 | 1952 | 31,140 | Fair |
| Stoops Ferry Rd over Narrows Run | 1962 | 30,934 | Fair |
| Raymond Shafer Hw over SR 0019 | 1975 | 30,912 | Fair |
| Raymond Shafer Hwy over Pa Turnpike | 1976 | 30,912 | Fair |
| SR 28 NB over CSX (avrr) | 2010 | 30,728 | Good |
| SR 885 over Bluff | 2001 | 30,717 | Good |
| SR 885 over Bluff | 2007 | 30,717 | Fair |
| SR 885 over Cliff | 1950 | 30,717 | Fair |
| SR 885 over Cliff | 1950 | 30,717 | Fair |
| SR 885 over Cliff | 1981 | 30,717 | Fair |
| Crosstown Blvd over 7TH Ave Ramp D | 1962 | 30,678 | Good |
| Crosstown Blvd over Fifth Ave | 1962 | 30,678 | Fair |
| I-579 SB over 279 28 Hov N&S RR E.ohio | 1988 | 30,678 | Fair |
| I-579 SB over N-s RR Pat Lrt Pat Ebswy | 1986 | 30,678 | Good |
| SR 0050 EB WB over Chartiers Creek | 1986 | 30,572 | Fair |
| Raymond E Wilt Hw over I-279 - Hov Lane | 1987 | 30,170 | Good |
| SR 0019 NB SB over SR 3004 Mcmurray Rd | 1940 | 30,066 | Good |
| Pa Tpk (I-76) over N Fork Pine Creek | 1952 | 30,022 | Good |
| Pa Tpk (I-76) over T983 Willow Run CSX RR* | 1952 | 30,022 | Fair |
| Bloomfield Br over N-s RR CSX RR E Bswy Pl | 1986 | 30,000 | Fair |
| McKees Rocks Brg over Norfolk S RR Ohio River | 1931 | 29,612 | Fair |
| Mckees Rock Br Rd over CSX RR | 1931 | 29,612 | Fair |
| Mckees Rocks Br over Chambers Street | 1931 | 29,612 | Fair |
| Mckees Rocks Br over Helen Street | 1931 | 29,612 | Fair |
| Pa Tpk (I-76) over SR 0019 US19 | 2021 | 29,582 | Good |
| Pa Tpk (I-76) over SR 0019 US19 | 2021 | 29,582 | Good |
| Raymond E Wilt Hw over SR 4014 Gass Rd | 1988 | 29,113 | Fair |
| Clairton Blvd over Tr. 51 over Lewis Run | 1958 | 29,050 | Fair |
| Broughton Library over Lick Run | 1920 | 28,309 | Fair |
| Freeport Rd over Deer Creek | 1970 | 27,605 | Fair |
| Rt 0008 NB SB over SR 4068-red Belt | 1984 | 27,406 | Fair |
| SR 0279 NB over SR 4014 Gass Rd | 1988 | 27,398 | Fair |
| Raymond Shafer Hw over Poc Railway | 1972 | 27,364 | Fair |
| Raymond Shafer Hw over SR 3048-noblestown Rd. | 1972 | 27,364 | Good |
| Clairton Blvd. over Lebanon Church Rd | 1939 | 27,346 | Fair |
| Pa Tpk (I-76) over T-574 | 2012 | 27,341 | Good |
| Pa Tpk (I-76) over Trib of Bush Creek | 2021 | 27,341 | Good |
| Perry Hy over SR 910 | 2002 | 27,155 | Good |
| SR 0008 Lr 72 over Pa Tpk (I-76) | 1952 | 27,137 | Fair |
| Raymond P Shafe Hy over Campbells Run Rd | 1973 | 27,069 | Good |
| Raymond Shafer Hw over SR 0376 | 1973 | 27,069 | Good |
| Raymond Shafer Hw over SR 8009 Ramp B | 1973 | 27,069 | Fair |
| Raymond Shafer Hw over Campbells Run Rd | 1973 | 26,989 | Good |
| Raymond Shafer Hw over Ramp B to 79 SB | 1973 | 26,989 | Fair |
| Raymond Shafer Hw over SR 0022 | 1973 | 26,989 | Good |
| Ohio River Bl over Toms Run | 1931 | 26,829 | Fair |
| SR 0279 NB over SR 4003 4009 8102 | 1986 | 26,806 | Fair |
| Sewickley Bridge over SR 0051;N&SRR;CSX;OHIO R | 1981 | 26,633 | Fair |
| I- 0376 EB over Haymaker Road | 1962 | 26,622 | Fair |
| Interstate 376 over Business Rt. 22 | 2011 | 26,622 | Good |
| Mckeesport-duq Brg over 736 Ext 3 Rrs Mon.riv. | 1927 | 26,495 | Fair |
| SR 0019 over Br.brush Run | 1940 | 26,458 | Good |
| Robinson Town C Bl over SR 0376 EB WB | 1996 | 26,417 | Good |
| Mansfield Br over Mon Rv LR736 5TH A & Rrs | 1951 | 26,416 | Fair |
| 40th Street Bridge over Nsrc CSX Avr | 1924 | 26,091 | Fair |
| SR 65 over Abandoned Roadway | 1930 | 25,941 | Fair |
| SR 65 over Fremont Street | 1930 | 25,941 | Fair |
| SR 65 over Jacks Run Farragut Rd | 1984 | 25,941 | Fair |
| Clairton Blvd over Lewis Run | 1959 | 25,938 | Fair |
| Clairton Blvd over Lewis Run | 1959 | 25,938 | Fair |
| Clairton Blvd over Lewis Run | 1935 | 25,938 | Fair |
| Clairton Blvd over Lewis Run | 1958 | 25,938 | Fair |
| Clairton Blvd over Lewis Run | 1999 | 25,938 | Good |
| SR 0051 NB SB over Lewis Run | 1935 | 25,938 | Good |
| SR 0051 NB SB over Lewis Run | 1999 | 25,938 | Good |
| SR 51 NB SB over over Lewis Run | 1960 | 25,938 | Fair |
| SR 0065 NB over Allegheny Ave Rp.b | 1968 | 25,881 | Fair |
| SR 0065 NB over Fontella St. | 1991 | 25,881 | Good |
| SR 0065 NB over SR 65 SB Various St Ally | 1968 | 25,881 | Fair |
| Washington Av over Chartiers Creek | 1985 | 25,873 | Good |
| Rankin Br over SR837EX 3 Rrs Kenmarave | 1951 | 25,860 | Fair |
| Parkway West over Haymaker Road | 1962 | 25,835 | Fair |
| SR 8082 over N/a | 1940 | 25,731 | Fair |
| Birmingham Brg Apr over Pkwy E Rp T Trail 2ND Av | 1976 | 25,692 | Fair |
| Birmingham Bridge over Mon River CSX RR | 1976 | 25,692 | Fair |
| Raymond Shafer Hw over Clever Rd | 1971 | 25,279 | Fair |
| Raymond Shafer Hw over SR 0060 | 1971 | 25,279 | Fair |
| Lebanon Road over Baldwin Rd RR Ramp St CR | 1963 | 25,225 | Fair |
| SR 0028 NB over Lr 679-sr 910 | 1970 | 25,171 | Fair |
| SR 0028 NB over Pa Turnpike | 1970 | 25,171 | Good |
| SR 51 over Fallen Timber Run | 2009 | 24,914 | Good |
| I 279 SB over Camp Horne Rd | 1988 | 24,848 | Fair |
| Raymond E Wilt Hw over Mcaleer Rd. | 1988 | 24,848 | Fair |
| Raymond E Wilt Hw over Mt Nebo Rd | 1988 | 24,848 | Fair |
| Airport Rd over Service Rd & Mcclaren Rn | 1992 | 24,775 | Good |
| Hulton Bridge over N&S RR Allegheny River | 2015 | 24,672 | Good |
| Raymond Shafer Hw over Clever Rd | 1971 | 24,566 | Fair |
| Raymond Shafer Hw over SR 0060 | 1971 | 24,566 | Fair |
| Raymond Shafer Hwy over Moon Run | 1973 | 24,566 | Fair |
| I-279 NB over Camp Horne Rd | 1988 | 24,565 | Fair |
| Raymond E Wilt Hw over Mcaleer Rd | 1988 | 24,565 | Fair |
| Raymond E Wilt Hw over Mt Nebo Road | 1988 | 24,565 | Fair |
| Raymond Shafer Hw over SR 0051 at Groveton | 1974 | 24,451 | Good |
| Rt 0022 EB WB over Oakdale Road SR 3063 | 1964 | 24,322 | Good |
| Rt 0022 EB WB over SR 0978 | 1966 | 24,322 | Fair |
| Rt 0022 EB WB over SR 3103- Mckee Road | 1964 | 24,322 | Fair |
| SR 22/30 over SR 0376 EB WB | 1950 | 24,322 | Fair |
| Curry Hollow Rd over CSX Owned | 2012 | 24,259 | Good |
| Airport Ex over Service Rd & Mcclaren Rn | 1992 | 24,164 | Good |
| Saw Mill Run Blvd over Weyman Run | 2015 | 24,060 | Good |
| Clairton Blvd over Peters Creek | 1960 | 23,704 | Fair |
| Freeport Rd over S.oakhill Dr.& Squaw Run | 1965 | 23,651 | Fair |
| SR 0028 SB over Fox Chapel Road | 1965 | 23,651 | Fair |
| SR 0028 SB over Pa Turnpike | 1970 | 23,437 | Fair |
| Cross St over Saw Mill Run | 1929 | 23,221 | Fair |
| Allegheny Val Expy over Guys Run Road (SR 1011) | 1971 | 23,171 | Fair |
| SR 0028 NB over Coal Co Rd & Barge Basin | 1971 | 23,171 | Fair |
| SR 0028 NB over Deer Creek | 1972 | 23,171 | Fair |
| SR 0028 NB over Gamma Drive (twp Rd 505) | 1970 | 23,171 | Fair |
| SR 0028 NB over Powers Run Road SR 1009 | 1970 | 23,171 | Fair |
| Rt 0022 EB WB over Twp Rd 873 Partridge Ln | 1964 | 23,161 | Fair |
| Ohio River Bl over Birmingham Ave | 1930 | 23,052 | Fair |
| Ohio River Bl over Forest Ave. | 1930 | 23,052 | Fair |
| Ohio River Blvd over Lowries Run | 2011 | 23,052 | Good |
| SR 65 over Spruce Run Cr.-spruce St | 1930 | 23,052 | Fair |
| Cliff Mine Rd over Mc Clarens Run | 1949 | 23,000 | Good |
| WIlliam Penn Hwy over Lr 744 Union RR Thompson | 1942 | 22,920 | Fair |
| William Penn Hy over Lr 395 & Chalfont Run | 1941 | 22,920 | Fair |
| Gilkeson Rd over Painters Run | 1963 | 22,675 | Good |
| Pgh-mckeesport Bl over Maple Avenue | 1952 | 22,600 | Good |
| Allegheny Val Expy over Guys Run Road (SR 1011) | 1971 | 22,509 | Fair |
| SR 0028 SB over Coal Co Rd & Barge Basin | 1971 | 22,509 | Fair |
| SR 0028 SB over Deer Creek | 1970 | 22,509 | Fair |
| SR 0028 SB over Powers Run Road SR 1009 | 1970 | 22,509 | Fair |
| SR 0028 SB over Rt 0910 EB WB | 1970 | 22,509 | Fair |
| SR 0028 SH over Gamma Drive (twp Rd 505) | 1970 | 22,509 | Fair |
| Ninth Street Br over Allegh Riv 10 St By-pass | 1926 | 22,462 | Fair |
| SR 0065 SB over Allehgheny Av.& Rp.b | 1968 | 22,423 | Good |
| SR 0065 SB over Fontella St. | 1991 | 22,423 | Good |
| SR 0065 SB over Reedsdale N.shore All.rv | 1968 | 22,423 | Fair |
| Thorn Hill Road over Pa Tpk (I-76) | 2015 | 22,384 | Good |
| Kennywood Blvd over Union RR Thompson Run | 1928 | 22,325 | Poor |
| SR 65 over Dilworth Run W.belvue St | 1930 | 22,278 | Fair |
| Rt 0008 NB SB over Pine Creek | 1912 | 22,269 | Fair |
| Rt 0008 NB SB over Pine Creek | 1933 | 22,269 | Fair |
| Rt 0008 NB SB over Pine Creek | 1933 | 22,269 | Fair |
| Mcknight Rd over Ingomar Rd-sr 4070 | 1952 | 22,173 | Fair |
| Mcknight Rd over Pine Creek | 1953 | 22,173 | Good |
| SR 0028 NB over SR 1017-yutes Run Rd | 1970 | 22,136 | Fair |
| Allegheny Val Ex over Crawford Run Road | 1976 | 22,035 | Fair |
| Rt 0028 SB over Baileys Run Rd. Creek | 1976 | 22,035 | Good |
| SR 0028 SB over SR 1017-yutes Run Rd | 1970 | 22,035 | Fair |
| Rt 0008 NB SB over Gourdhead Run | 1931 | 21,896 | Good |
| Blvd of the Allies over CSX RR & Bike Trail | 1938 | 21,211 | Poor |
| Library Rd over Saw Mill Run | 2003 | 21,171 | Good |
| Library Rd. over Saw Mill Run | 2015 | 21,171 | Good |
| Library Rd. over Weyman Run | 2015 | 21,171 | Good |
| Rt 0022 EB WB over Old Steubenville Pike | 1963 | 21,157 | Fair |
| SR 0022 SH over Potato Garden Rd. | 1964 | 21,157 | Fair |
| Freeport Rd over S.OAKHILL Rd.& SQUAW RUN | 1965 | 21,142 | Fair |
| SR 0028 NB over Fox Chapel Road | 1965 | 21,142 | Fair |
| 5th AVENUE over Crooked Run | 1950 | 21,021 | Fair |
| Allegheny River Bl over Abandoned RR | 1931 | 21,000 | Fair |
| Allegheny River Bl over Abandoned RR | 1931 | 21,000 | Fair |
| N Ave&brighton Rd over N-s Rr-allegheny Park | 1905 | 21,000 | Poor |
| Panther Hollow Rd over Overlook Drive | 1988 | 21,000 | Poor |
| Greentree Road over Chartiers Creek | 1960 | 20,999 | Fair |
| Connor Rd over Pat Trolley # 9830 | 1983 | 20,817 | Poor |
| Raymond Shafer Hw over SR 4043 Red Mud Hollow | 1971 | 20,746 | Fair |
| Raymond Shafer Hwy over SR 0279 SB | 1973 | 20,746 | Fair |
| Rt 0008 NB SB over Pine Creek | 1959 | 20,741 | Fair |
| Ohio River Bl over Ferry Street | 1931 | 20,496 | Fair |
| Ohio River Bl over Little Sewickley Crk | 1937 | 20,496 | Fair |
| Ohio River Blvd over Big Sewickley Creek | 1946 | 20,496 | Fair |
| SR 0019 NB SB over Beaver Ave.turnaround | 1969 | 20,372 | Fair |
| SR 0028 SB over SR 1034-bull Creek Road | 1984 | 20,358 | Fair |
| New Kensington Brg over SR 9109 N&S Pine Allriv | 1927 | 20,333 | Fair |
| Fort Duq Br (low) over Ft Duq Brdg NB Allegh R | 1959 | 20,246 | Fair |
| Ramp D over Point St Park Mon River | 1958 | 20,246 | Fair |
| Ramp F over I-279 NB Ramp D Allgy Ri | 1968 | 20,246 | Fair |
| Clairton Bl over Fallen Timber Run | 1948 | 20,208 | Fair |
| Hayden Blvd (SR51) over Fallen Timber Run | 2018 | 20,208 | Good |
| Bigelow Bv over Bloomfield Bridge Ramp F | 1986 | 20,100 | Fair |
| Raymond Shafer Hw over Glenfield Rd Kilbuck Run | 1971 | 20,098 | Fair |
| Freeport Rd over Barge Basin | 1928 | 19,848 | Fair |
| 5TH Ave over Crooked Run | 1937 | 19,749 | Fair |
| Lysle Bl over Crooked Run | 1937 | 19,749 | Fair |
| Ramp A over I-376 WB Underpass | 1958 | 19,488 | Fair |
| Raymond P Shafe Hw over Red Mud Hollow Rd | 1970 | 19,483 | Good |
| Golden Mile Hw over Abers Creek | 1952 | 19,380 | Fair |
| Golden Mile Hy over Abers Creek | 1952 | 19,380 | Fair |
| Golden Mile Hy over Piersons Run | 1950 | 19,380 | Good |
| Rt 0028 NB over Baileys Run Rd. Creek | 1976 | 19,212 | Good |
| 1039 NB over SR279 SB Rp SR 8041 Rp D | 1968 | 19,116 | Fair |
| Ramp C (fort Pitt) over Ramps B D G F & Q | 1958 | 19,116 | Fair |
| Perrysville Ave Rp over Lr 1021-4 NB SB Hov I279 | 1986 | 18,993 | Fair |
| Ben Avon Lowrie Rd over Bear Run | 1988 | 18,709 | Good |
| Greentree Rd over SR 0376 EB WB | 1950 | 18,460 | Fair |
| Tarentum Br Rmp.b over NS RR 4TH Ave Ross St | 1952 | 18,458 | Fair |
| Ramp A Tarentum Br over 4TH Ave Rampd NS RR | 1952 | 18,420 | Poor |
| Tenth Street Br over I-376 and CSX RR | 1933 | 18,372 | Fair |
| 28-279 Connector over SR 279 and Madison Ave | 2008 | 18,067 | Good |
| SR 60 over P&o RR Chartiers Creek | 1980 | 18,064 | Fair |
| Mckeesport Blvd over Union Railroad | 1960 | 18,051 | Poor |
| Ramp C over Saw Mill Run | 1953 | 18,027 | Fair |
| Kennywood Blvd over Creek | 1951 | 17,977 | Fair |
| Pa Tpk (I-76) EB over SR 1001 N.S. & A.v. RR | 2010 | 17,862 | Good |
| Raymond Shafer Hw over Chartiers Creek | 1965 | 17,821 | Fair |
| Raymond Shafer Hw over Chartiers Creek | 1965 | 17,821 | Fair |
| Raymond Shafer Hw over SR 0050 | 1965 | 17,821 | Fair |
| Raymond Shafer Hw over SR 0050 | 1965 | 17,821 | Fair |
| Raymond Shafer Hw over W&le RR Chartiers Creek | 1965 | 17,821 | Fair |
| Raymond Shafer Hw over Wle RR Chartiers Creek | 1965 | 17,821 | Fair |
| Baum Bl over N-s RR Pat East Busway | 1913 | 17,746 | Fair |
| Baum Blvd over CSX RR Pat East Busway | 1975 | 17,746 | Fair |
| Raymond Shafer Hw over Glenfield Rd Kilbuck Run | 1971 | 17,569 | Fair |
| Lebanon Rd. over Union RR | 2014 | 17,544 | Good |
| Hot Metal Street over CSX Railroad Tunnel | 2000 | 17,500 | Fair |
| Hot Metal Street over Mon River & Private RR | 1904 | 17,500 | Fair |
| Glenwood Br over Mon R 3 Rrs Carson St | 1966 | 17,497 | Fair |
| Mifflin Rd over SR 8059(RAMP A) | 1967 | 17,497 | Good |
| SR 0051 SB over SR 0376 Eb-wb | 1953 | 17,195 | Fair |
| SR 0050 over Chartiers CR Flood Chann | 1978 | 17,127 | Fair |
| Ramp H over SR 3069 EB WB | 1962 | 17,091 | Fair |
| Bower Hill Rd over Mclaughlin Run | 1941 | 17,000 | Fair |
| Mclaughlin Run Rd over Mclaughlin Run | 1940 | 16,943 | Fair |
| Blvd Allies WB over Forbes Birm E&f Brady | 1928 | 16,941 | Fair |
| Old William Penn over Thompson Run | 1924 | 16,904 | Poor |
| Rt 0030 EB WB over SR 2037 NB Triboro | 1970 | 16,855 | Good |
| SR 0030 EB WB over SR 2037 | 1931 | 16,855 | Fair |
| SR 0030 EB WB over over Bessemer Ave | 1937 | 16,855 | Good |
| Westinghouse Brg over LR1074 Turtle CR N&S RR | 1931 | 16,855 | Fair |
| Pa Tpk (I-76) WB over SR1001 N.S. Av. R | 2010 | 16,799 | Good |
| Ramp A_d over SR 0376 EB WB | 1952 | 16,786 | Fair |
| Thompson Run Rd over Pine Creek South | 2012 | 16,520 | Good |
| Bethel Church Rd over Port Author Line Br 9860 | 1987 | 16,470 | Fair |
| SR 51 North Bound over SR 837 NSRR Local Rd. | 1951 | 16,353 | Fair |
| Fort Pitt Bl over Mon Wharf Parking Lot | 2002 | 15,955 | Fair |
| Bower Hill Rd over Painters Run | 1927 | 15,909 | Fair |
| Bower Hill Rd over Painters Run | 1927 | 15,909 | Fair |
| S.R. 19 over SR 837 | 2003 | 15,756 | Good |
| Pa Tpk (I-76) over SR 4063 Lr 02141 | 2012 | 15,732 | Good |
| Mcneilly Road over Saw Mill Run | 1932 | 15,683 | Fair |
| Ramp K over Crosstown Blvd | 1962 | 15,599 | Fair |
| Business 376 EB over SR 376 | 1991 | 15,583 | Good |
| Ramp J Rd over SR 4003-evergreen Rd. | 1986 | 15,470 | Fair |
| Painters Run Rd over Painters Run | 1930 | 15,409 | Fair |
| West End Circle over W. Carson St. SR 3106 | 1991 | 15,276 | Fair |
| Brownsville Rd over W&le RR | 1984 | 15,239 | Fair |
| Fox Chapel Rd over Sycamore Run | 1926 | 15,217 | Fair |
| Baptist Road over W & LE Railroad | 2008 | 15,087 | Fair |
| Penn Av over Prt East Busway N-s RR | 1981 | 15,057 | Fair |
| Bower Hill Rd over Painters Run | 1934 | 15,049 | Fair |
| Painters Run Rd over Painters Run | 1955 | 15,049 | Poor |
| Ramp I over Mcknight Interchange | 1986 | 15,036 | Good |
| Braddock Avenue over Norfolk Southern RR | 2021 | 15,000 | Good |
| Forbes Avenue over Fern Hollow Creek | 2022 | 15,000 | Good |
| South Negley Av over N-s RR & Pat Ebusway | 1924 | 15,000 | Poor |
| Jerome Street over 2027 CSX Local & Yough R | 1937 | 14,996 | Fair |
| Wildwood Rd over Montour Run | 1980 | 14,925 | Fair |
| Wildwood Road over Pine Creek | 1977 | 14,925 | Fair |
| SR 51 S.B. over NSSR Local Rd. | 1951 | 14,907 | Fair |
| Ramp L over Forbes Ave Diamond St. | 1962 | 14,818 | Fair |
| Sandy Creek Road over Sandy Creek | 1950 | 14,750 | Fair |
| West Carson St over Saw Mill Run | 1910 | 14,731 | Fair |
| Sixteenthstreet Br over Smallman St Alleg. Riv. | 1922 | 14,656 | Fair |
| Ramp E 8008 EB over Beechwood Blvd | 1952 | 14,643 | Good |
| Ramp B Rd over Prkwy&campbells Run Rd. | 1973 | 14,537 | Fair |
| Ramp A to 376 EB over Campbell Run Road | 1973 | 14,535 | Good |
| Bl of the Allies over Forbes Av Maurice St | 2008 | 14,321 | Good |
| Babcock Bl over Girtys Run | 1926 | 14,237 | Fair |
| Route 28 N.B. over SR 1034 -bull Creek Road | 1984 | 14,091 | Fair |
| Butler St over Fill Ped Trail | 2014 | 14,090 | Good |
| Pgh Mills Blvd over SR 0028 NB SB | 2005 | 14,063 | Fair |
| Coraopolis Br over Ohio R Bk Chn;csx Rr;rd | 1995 | 14,000 | Good |
| Schenley Dr over CSX Railroad Boundary St | 1896 | 14,000 | Fair |
| 62nd Street Bridge over N&S RR S.main St. River | 1960 | 13,970 | Fair |
| Castle Shannon Blv over Saw Mill Run | 1900 | 13,866 | Fair |
| Relocated Ft Pitt over Mon Wharf Flood Walls | 2002 | 13,800 | Good |
| Golden Mile Hwy over Humms Run | 1950 | 13,769 | Fair |
| Golden Mile Hy over Abers Creek | 1950 | 13,769 | Fair |
| Golden Mile Hy over Humms Run | 1950 | 13,769 | Fair |
| Ramp T over over I376 SR2085 Ramps | 1956 | 13,599 | Fair |
| Panther Hollow Tr over Panth Hollow Unknown Str | 1896 | 13,500 | Fair |
| SR 0019 NB SB over Pine Creek | 1940 | 13,450 | Fair |
| Hulton Rd over Turnpike B&LE RR | 2007 | 13,445 | Good |
| Mckee Rd over N.br.robinson Run | 1962 | 13,424 | Fair |
| Rt 0028 NB over Burtner Road (SR1032) | 1972 | 13,415 | Good |
| SR 0028 SB over Saxonburg Rd | 1972 | 13,415 | Fair |
| Eighth Ave over Homestead Run | 1940 | 13,386 | Poor |
| Stoops Ferry Road over Flaugherty Run | 2019 | 13,326 | Good |
| Pittsburgh Street over Shoops Run | 1920 | 13,312 | Fair |
| Library Road over Piney Fork Creek | 2020 | 13,254 | Good |
| Greentree Road over Georges Run | 1950 | 13,168 | Fair |
| Forsythe Rd over Wheeling & Le RR | 1992 | 13,125 | Fair |
| Coraopolis Blvd over Twp 142 & Montour Run | 1929 | 13,117 | Fair |
| Mosside Blvd Rt 48 over Access Rd | 2006 | 13,110 | Good |
| Becks Run Rd over Becks Run | 1946 | 13,104 | Fair |
| Brighton Heights over Verner Avenue | 1930 | 13,100 | Poor |
| Rt 0028 NB over Burtner Road (SR 1032) | 1972 | 13,076 | Fair |
| SR 28 NB over Saxonburg Rd | 1972 | 13,076 | Fair |
| Babcock Bl over Girtys Run | 1930 | 13,030 | Fair |
| Babcock Bl over Girtys Run | 1929 | 13,030 | Fair |
| Babcock Bl over Girtys Run | 1998 | 13,030 | Fair |
| Babcock Blvd over Girtys Run | 1931 | 13,030 | Fair |
| Babcock Blvd over Girtys Run | 1930 | 13,030 | Fair |
| Babcock Blvd over Girtys Run | 1929 | 13,030 | Good |
| Walnut Street over Yough CSX Local Sts | 1931 | 12,916 | Fair |
| Homeville Rd over Union RR Grant Thmps Run | 1954 | 12,897 | Fair |
| Ramp J (vets Brg) over N-s RR Pat Lrt Patebswy | 1986 | 12,883 | Fair |
| Sixth Street Br over 10TH St Bypass Allegh Rv | 1928 | 12,824 | Fair |
| Ramp J over Crosstown Blvd | 1962 | 12,809 | Fair |
| Becks Run Rd over Becks Run | 1990 | 12,757 | Fair |
| Becks Run Rd over Becks Run | 1990 | 12,757 | Good |
| Ramp A over Anderson St. | 1986 | 12,750 | Fair |
| Chartiers Av over Pat Airport Busway | 1908 | 12,700 | Fair |
| Beaver Grade Rd over Montr Trlwy & Montour R | 1960 | 12,698 | Poor |
| SR 0050 EB WB over Pgh & Ohio Railway | 1965 | 12,456 | Poor |
| Evergreen Road over Girtys Run | 1932 | 12,385 | Fair |
| Ramp C Rd over Traffic Route 28 N.B. | 1960 | 12,333 | Fair |
| Lowries Run Rd. over Lowries Run | 1914 | 12,322 | Fair |
| Vilsack Rd over S Branch Pine Creek | 2022 | 12,274 | Good |
| SR 0050 SH over Millers Run | 1972 | 12,244 | Good |
| Ramp V over 1021 Rp.b & City Streets | 1986 | 12,209 | Fair |
| 10TH St Bypass over Pedestrian Walkway | 2002 | 12,146 | Good |
| Bigelow Blvd WB over I-579 NB SB Ramp B | 1986 | 12,115 | Fair |
| Bigelow Blvd over 7TH Ave | 1960 | 12,115 | Good |
| Bakerstown Rd over Brush Creek | 1940 | 12,100 | Good |
| Salem Hollow Rd over North Fork Pine Creek | 2013 | 12,044 | Good |
| Windgap Av over Edmore&crkrd Rrs&charck | 1985 | 12,037 | Fair |
| Seventh Av over Pat Lrt Spur Line | 1925 | 12,000 | Fair |
| I-279 SB over Various City Streets | 1986 | 11,944 | Fair |
| SR 0279 SB over Various City Streets | 1985 | 11,944 | Fair |
| Mount Nebo Rd over SR 0079 NB SB | 1971 | 11,928 | Fair |
| Logans Ferry Rd. over Pucketa Creek | 1949 | 11,857 | Good |
| SR 8005 Ramp Ab over SR 0079 Nb-sb | 1967 | 11,774 | Fair |
| Ramp G Rd over 7th Ave. over I-579 | 1962 | 11,754 | Fair |
| Ramp A over SR 0051 Ramp C | 1953 | 11,751 | Fair |
| Burtner Road over Little Bull Creek | 1970 | 11,736 | Fair |
| Ohio River Bl over Glenfield Road | 1975 | 11,649 | Fair |
| Ohio River Bl over Kilbuck Run | 1941 | 11,649 | Fair |
| Ramp W over 1021 Rp.b & Scotland Ave | 1986 | 11,624 | Fair |
| Murray Av over Beechwood Blvd Pkwy Ramp | 1978 | 11,500 | Fair |
| Ingomar Rd over Br.pine Creek | 1936 | 11,486 | Fair |
| Old Clairton Road over Lewis Run Beside 51 SB | 1999 | 11,471 | Fair |
| Greenfield Ave over I-376 Parkway East | 2017 | 11,424 | Good |
| SR 0019 NB over SR 0376 Eb-wb | 1953 | 11,416 | Good |
| Patton St over Norf South RR Ave U Wall | 1971 | 11,414 | Fair |
| SR 0051 SB over SR 0837 | 1951 | 11,406 | Good |
| Center Ave. over Fallen Timber Run | 2020 | 11,314 | Good |
| California Avenue over Farragut St Jacks Run | 1925 | 11,263 | Good |
| Noblestown Road over Robinson Run | 1972 | 11,259 | Fair |
| Hill Rd over Zoo Walkway | 1940 | 11,200 | Fair |
| Chartiers Av over Chartiers Creek | 1966 | 11,155 | Fair |
| Ramp G over Madison Norfolksouth RR | 1988 | 11,062 | Fair |
| Gibsonia Rd over Deer Creek | 1970 | 11,058 | Fair |
| Mcardle Rdwy Rd over Hillside | 1929 | 11,000 | Poor |
| Mcardle Rdwy Rd over Sycamore Street | 1983 | 11,000 | Poor |
| Coraopolis Blvd over Montour Run | 1973 | 10,961 | Fair |
| Boyce Rd over Chartiers Creek | 1996 | 10,955 | Fair |
| Herron Av over Nsrc CSX & Busway | 1980 | 10,900 | Poor |
| Fort. Duq Brg (UP) over Ft Duq Br SB Alleg Rvr | 1959 | 10,891 | Fair |
| I-279 NB over Various City Streets | 1986 | 10,891 | Fair |
| SR 0279 NB over SR 0279SB | 1985 | 10,891 | Fair |
| Peoples Rd over Br.girtys Run | 1963 | 10,860 | Fair |
| Evergreen Rd over Girtys Run | 1960 | 10,822 | Fair |
| Hope Hollow Rd over Georges Run | 1930 | 10,819 | Good |
| Ramp S over Ramp R 02266 Rps. Forbes | 1952 | 10,761 | Poor |
| Sample Rd over Pine Creek | 1961 | 10,717 | Fair |
| Mcknight Rd over Perry Highway-us 19 | 1953 | 10,653 | Good |
| Highland Rd over Pat Transit RR | 1977 | 10,600 | Fair |