Mercer County, Pennsylvania bridges
Mercer County has 437 bridges and culverts in the National Bridge Inventory, the oldest built in 1885. 65 (15%) are rated poor. The most common type is box beam or girders - multiple (43%).
- Bridges
- 437
- Good
- 41%
- Fair
- 44%
- Poor
- 15%
- 65 bridges
- Average age
- 52.8 yrs
- Posted or closed
- 43
Map of bridges in Mercer County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Mercer County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good41%(179)
Fair44%(193)
Poor15%(65)
When they were built
Busiest
- SR 80 Eb/Wb & Ramp over Hogback RunGood26,925 vehicles/day
- SR 79 Nb/Sb over Over Pine RunFair21,958 vehicles/day
- SR 80 EB over Over SR 718 Sieg Hill RDFair13,718 vehicles/day
- SR 80 EB over Over Abandon RR &shngo RFair13,718 vehicles/day
- SR 80 EB over Over SR 18 New Castle RDGood13,718 vehicles/day
Longest
- Fair
- Fair
- Fair
- Fair
- Fair
Oldest
- Mill Road over Little Shenango RiverPoorBuilt 1885
- Fair
- SR 2022 Millbrook over Over Wolf CreekFairBuilt 1895
- Kerrstown Road over Dugan RoadGoodBuilt 1895
- Huron Street over Chestnut RunPoorBuilt 1897
All bridges in Mercer County
Busiest first · showing 1–200 of 437| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| SR 80 Eb/Wb & Ramp over Hogback Run No. 000000000025774 | Shenango Township | 1966 | Culvert | 25 ft | 26,925 | Good |
| SR 79 Nb/Sb over Over Pine Run No. 000000000025734 | Findley Township | 1963 | Culvert | 30 ft | 21,958 | Fair |
| SR 80 EB over Over SR 718 Sieg Hill RD No. 000000000025766 | Shenango Township | 1964 | Box Beam or Girders - Multiple | 107 ft | 13,718 | Fair |
| SR 80 EB over Over Abandon RR &shngo R No. 000000000025768 | Shenango Township | 1966 | Stringer/Multi-beam or Girder | 629 ft | 13,718 | Fair |
| SR 80 EB over Over SR 18 New Castle RD No. 000000000025771 | Shenango Township | 1993 | Stringer/Multi-beam or Girder | 98 ft | 13,718 | Good |
| SR 60 Nb/Sb Beaver over Over Hogback Run No. 000000000025691 | Shenango Township | 1966 | Culvert | 24 ft | 13,476 | Fair |
| SR 80 WB over Over SR 718 Sieg Hill RD No. 000000000025767 | Shenango Township | 1964 | Box Beam or Girders - Multiple | 107 ft | 13,426 | Fair |
| SR 80 WB over Over Abandon RR &shngo R No. 000000000025769 | Shenango Township | 1966 | Stringer/Multi-beam or Girder | 619 ft | 13,426 | Fair |
| SR 80 WB over Over SR 18 New Castle RD No. 000000000025773 | Shenango Township | 1994 | Stringer/Multi-beam or Girder | 98 ft | 13,426 | Good |
| SR 80 WB over Over SR 19 Nb/Sb Perry No. 000000000025792 | East Lackawannock Twp. | 1965 | Box Beam or Girders - Multiple | 145 ft | 13,129 | Fair |
| SR 80 WB over Over Abndn.Rr/Neshnk.Ck No. 000000000025794 | Findley Township | 1999 | Stringer/Multi-beam or Girder | 400 ft | 13,129 | Fair |
| SR 80 WB over Over SR 258 Butler Pike No. 000000000025797 | Findley Township | 1966 | Box Beam or Girders - Multiple | 140 ft | 13,129 | Fair |
| SR 80 EB over Over SR 19 Nb/Sb Perry No. 000000000025791 | East Lackawannock Twp. | 1965 | Box Beam or Girders - Multiple | 144 ft | 12,992 | Fair |
| SR 80 EB over Over SR 258 Butler Pike No. 000000000025796 | Findley Township | 1965 | Box Beam or Girders - Multiple | 140 ft | 12,992 | Fair |
| SR 80 EB over Over Abndn.Rr/Neshnk.Ck No. 000000000040216 | Findley Township | 1998 | Stringer/Multi-beam or Girder | 381 ft | 12,992 | Good |
| SR 80 WB over Over SR 318 W Mddsx-Mer No. 000000000025777 | Shenango Township | 1966 | Box Beam or Girders - Multiple | 173 ft | 12,856 | Fair |
| SR 80 WB over W Br Ltl Neshannock Crk. No. 000000000025779 | Shenango Township | 1965 | Box Beam or Girders - Multiple | 126 ft | 12,856 | Fair |
| SR 80 WB over Over T300 Greenfield RD No. 000000000025781 | Lackawannock Township | 1965 | Box Beam or Girders - Multiple | 91 ft | 12,856 | Fair |
| SR 80 WB over Over Harthegig Run No. 000000000025782 | Lackawannock Township | 1965 | Culvert | 21 ft | 12,856 | Fair |
| SR 80 WB over Over Lit.Neshannock Ck No. 000000000025786 | Lackawannock Township | 1966 | Stringer/Multi-beam or Girder | 212 ft | 12,856 | Fair |
| SR 80 WB over Over SR 3007 Mrcr-Plski No. 000000000025787 | East Lackawannock Twp. | 1965 | Box Beam or Girders - Multiple | 107 ft | 12,856 | Fair |
| SR 80 WB over Over SR 173 Grove City No. 000000000025810 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 100 ft | 12,803 | Good |
| SR 80 WB over Over Wolf Creek No. 000000000025812 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 131 ft | 12,803 | Fair |
| SR 80 WB over Over T998 Centertown Rd. No. 000000000040966 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 33 ft | 12,803 | Fair |
| SR 80 EB over Over Wolf Creek No. 000000000025811 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 131 ft | 12,625 | Fair |
| SR 80 EB over Over T998 Centertown Rd. No. 000000000040877 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 33 ft | 12,625 | Good |
| SR 80 EB over Over Black Run No. 000000000025807 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 45 ft | 12,491 | Fair |
| SR 80 EB over Over SR 173 Grove City No. 000000000025808 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 99 ft | 12,491 | Fair |
| SR 80 EB over Over SR 2007 T-439 & RR No. 000000000040212 | Pine Township | 1998 | Box Beam or Girders - Multiple | 379 ft | 12,491 | Good |
| SR 80 EB over Over SR 318 W Mddsx-Mer No. 000000000025776 | Shenango Township | 1966 | Box Beam or Girders - Multiple | 173 ft | 12,282 | Fair |
| SR 80 EB over W Br Ltl Neshannock Crk No. 000000000025778 | Shenango Township | 1965 | Box Beam or Girders - Multiple | 116 ft | 12,282 | Fair |
| SR 80 EB over Over T300 Greenfield RD No. 000000000025780 | Lackawannock Township | 1965 | Box Beam or Girders - Multiple | 91 ft | 12,282 | Fair |
| SR 80 EB over Over Harthegig Run No. 000000000025783 | Lackawannock Township | 1965 | Culvert | 21 ft | 12,282 | Fair |
| SR 80 EB over Over Lit.Neshannock Ck No. 000000000025784 | Lackawannock Township | 1965 | Stringer/Multi-beam or Girder | 212 ft | 12,282 | Fair |
| SR 80 EB over Over SR 3007 Mrcr-Plski No. 000000000025785 | East Lackawannock Twp. | 1965 | Box Beam or Girders - Multiple | 121 ft | 12,282 | Fair |
| SR 80 WB over Over Black Run No. 000000000025809 | Wolf Creek Township | 1965 | Box Beam or Girders - Multiple | 46 ft | 11,828 | Fair |
| SR 80 WB over Over SR 2007 T-439 & RR No. 000000000040555 | Pine Township | 1999 | Box Beam or Girders - Multiple | 379 ft | 11,828 | Good |
| SR 208 Grove City over Over I-79 Nb/Sb No. 000000000044246 | Springfield Township | 2007 | Box Beam or Girders - Multiple | 225 ft | 11,221 | Good |
| SR 58 Main Street over Over Wolf Creek No. 000000000025680 | Grove City Borough | 1967 | Box Beam or Girders - Multiple | 133 ft | 10,535 | Poor |
| SR 62 Connelly Blv over Over Pine Run No. 000000000025702 | City of Sharon | 1955 | Culvert | 25 ft | 10,523 | Fair |
| SR 62 Connelly Blv over Over Pine Run No. 000000000025703 | City of Sharon | 1955 | Culvert | 31 ft | 10,523 | Fair |
| SR 62 Connelly Blv over Over Pine Run No. 000000000025704 | City of Hermitage | 1955 | Culvert | 21 ft | 10,523 | Fair |
| SR 62 Connelly Blv over Over Pine Run No. 000000000025705 | City of Hermitage | 1955 | Culvert | 26 ft | 10,523 | Fair |
| SR 18 Sharon Road over Over Shenango River No. 000000000025633 | Clark Borough | 1966 | Stringer/Multi-beam or Girder | 427 ft | 10,243 | Good |
| SR 18 Main Street over Over Shenango River No. 000000000039617 | Greenville Borough | 1997 | Box Beam or Girders - Multiple | 118 ft | 10,072 | Good |
| SR 79 NB over Over SR 2017 N.Foster RD No. 000000000025749 | Jackson Township | 1965 | Box Beam or Girders - Multiple | 110 ft | 9,835 | Fair |
| SR 79 NB over Over SR 1008 District RD No. 000000000025752 | Lake Township | 1969 | Box Beam or Girders - Multiple | 88 ft | 9,835 | Fair |
| SR 79 NB over Over Lt Shenango R & RR No. 000000000025754 | Lake Township | 1969 | Box Beam or Girders - Multiple | 490 ft | 9,835 | Fair |
| SR 62 Shngo.Vly.Ex over Over Riverside Dr/River No. 000000000025699 | City of Sharon | 1956 | Stringer/Multi-beam or Girder | 385 ft | 9,562 | Fair |
| SR 62 Expressway over Over NS Railroad No. 000000000046016 | City of Sharon | 2010 | Stringer/Multi-beam or Girder | 121 ft | 9,562 | Good |
| SR 62 Shen Vly Exp over Over SR 718 S Doc & Nsr No. 000000000046277 | City of Sharon | 2010 | Box Beam or Girders - Multiple | 298 ft | 9,562 | Good |
| SR 3008 E.State ST over Over Shenango River Trib No. 000000000025989 | City of Hermitage | 1996 | Culvert | 26 ft | 9,270 | Good |
| SR 60 NB Beaver over Over T-369 Hewitt Road No. 000000000025688 | Shenango Township | 1966 | Slab | 92 ft | 9,001 | Fair |
| SR 79 SB over Over SR 2017 N.Foster RD No. 000000000025750 | Jackson Township | 1965 | Box Beam or Girders - Multiple | 110 ft | 8,934 | Fair |
| SR 79 SB over Over SR 1008 District RD No. 000000000025753 | Lake Township | 1969 | Slab | 88 ft | 8,934 | Fair |
| SR 79 SB over Over Lt Shenango R & RR No. 000000000025755 | Lake Township | 1969 | Box Beam or Girders - Multiple | 472 ft | 8,934 | Fair |
| SR 79 NB over Over SR 80 Eb/Wb No. 000000000025737 | Findley Township | 1965 | Box Beam or Girders - Multiple | 282 ft | 8,860 | Fair |
| SR 79 NB over Over SR2014 B&le Mill CR No. 000000000025744 | Findley Township | 1966 | Stringer/Multi-beam or Girder | 464 ft | 8,860 | Fair |
| SR 79 NB over Over Abdnd.Rr&yellow Ck No. 000000000025747 | Jackson Township | 1966 | Stringer/Multi-beam or Girder | 266 ft | 8,860 | Fair |
| SR 60 SB Beaver over Over T-369 Hewitt Road No. 000000000025689 | Shenango Township | 1966 | Slab | 92 ft | 8,603 | Fair |
| SR 79 SB over Over SR 80 Eb/Wb No. 000000000025739 | Findley Township | 1965 | Box Beam or Girders - Multiple | 276 ft | 8,539 | Fair |
| SR 79 SB over Over SR2014 B&le Mill CR No. 000000000025745 | Findley Township | 1966 | Stringer/Multi-beam or Girder | 460 ft | 8,539 | Fair |
| SR 79 SB over Over Abdnd.Rr&yellow Ck No. 000000000025748 | Jackson Township | 1966 | Stringer/Multi-beam or Girder | 266 ft | 8,539 | Fair |
| SR 19 Franklin St. over Over Munnel Run No. 000000000055939 | Coolspring Township | 2018 | Box Beam or Girders - Multiple | 46 ft | 7,975 | Good |
| SR 3032 Connely Bl over Over Shenango River No. 000000000026020 | City of Sharon | 1968 | Box Beam or Girders - Multiple | 206 ft | 7,971 | Fair |
| SR 3032 Connely Bl over Over Pine Run No. 000000000026021 | City of Sharon | 1989 | Box Beam or Girders - Multiple | 28 ft | 7,971 | Fair |
| SR 518 Walnut ST over Pine Hollow Run No. 000000000042875 | City of Hermitage | 2006 | Stringer/Multi-beam or Girder | 369 ft | 7,823 | Good |
| Walnut Streer over Pine Run No. 000000000026319 | 100-FT North of Rt 62 | 1966 | Box Beam or Girders - Multiple | 28 ft | 7,712 | Fair |
| I 376 WB over SR 80 EB & WB No. 000000000025692 | Shenango Township | 1966 | Stringer/Multi-beam or Girder | 360 ft | 7,660 | Fair |
| SR 60 Nb/Sb Beaver over Over SR 18 S Hermitage No. 000000000025697 | Shenango Township | 1966 | Box Beam or Girders - Multiple | 137 ft | 7,590 | Poor |
| SR 60 Broadway Ave over Bobby Run No. 000000000025981 | City of Hermitage | 1950 | Box Beam or Girders - Multiple | 23 ft | 7,590 | Good |
| SR 18 New Castle R over Over Hog Back Run No. 000000000025628 | Shenango Township | 1941 | Tee Beam | 85 ft | 7,414 | Poor |
| SR 60 Dock ST over Over Old Canal Creek No. 000000000025888 | City of Sharon | 1923 | Stringer/Multi-beam or Girder | 24 ft | 7,198 | Poor |
| SR 18 over Over NS R R/Siding No. 000000000025635 | Pymatuning Township | 1971 | Stringer/Multi-beam or Girder | 212 ft | 6,978 | Fair |
| SR 18 Sharon Road over Over Big Run No. 000000000025636 | West Salem Township | 1969 | Box Beam or Girders - Multiple | 62 ft | 6,978 | Fair |
| I-376 SB Beaver over Over SR 18 N/Sb New Cast No. 000000000025687 | Shenango Township | 1974 | Stringer/Multi-beam or Girder | 192 ft | 6,964 | Fair |
| SR 62 E.State St. over Over Shenango River Trib No. 000000000025708 | City of Hermitage | 1948 | Tee Beam | 23 ft | 6,906 | Fair |
| I-376 NB Beaver over Over SR 18 N/Sb New Cast No. 000000000025685 | Shenango Township | 1974 | Stringer/Multi-beam or Girder | 177 ft | 6,817 | Fair |
| SR 79 NB over Over SR 1009 No. 000000000025758 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 105 ft | 6,476 | Fair |
| SR 79 NB over Over Lake Wilhelm No. 000000000025762 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 826 ft | 6,476 | Fair |
| SR 79 SB over Over SR 1009 No. 000000000025759 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 105 ft | 6,474 | Fair |
| SR 79 SB over Over Lake Wilhelm No. 000000000025763 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 702 ft | 6,474 | Fair |
| SR 62 Shenango Exp over Pine Hollow Creek Br No. 000000000025707 | City of Hermitage | 1955 | Culvert | 23 ft | 5,898 | Fair |
| SR 3018 Walnut ST over Over NS RR / Shenango R. No. 000000000026003 | Sharpsville Borough | 1986 | Stringer/Multi-beam or Girder | 445 ft | 5,858 | Fair |
| SR 376 EB over SR 80 EB & WB No. 000000000025695 | Shenango Township | 1966 | Stringer/Multi-beam or Girder | 360 ft | 5,816 | Fair |
| SR 18 College Ave. over Over Little Shenango R No. 000000000025638 | Greenville Borough | 1986 | Stringer/Multi-beam or Girder | 105 ft | 5,803 | Good |
| Silver Street over Shenango River No. 000000000026317 | 300-FT East of Rt 718 | 1983 | Stringer/Multi-beam or Girder | 259 ft | 5,513 | Poor |
| SR 58 Grove City over Over SR 80 Eb/Wb Zh Con No. 000000000025677 | Findley Township | 1965 | Box Beam or Girders - Multiple | 378 ft | 5,388 | Fair |
| SR 58 Grove City over Over SR 79 NB / SB No. 000000000025678 | Findley Township | 1963 | Box Beam or Girders - Multiple | 291 ft | 5,388 | Fair |
| SR 358 Hadley Road over Over Sankeys Run No. 000000000025868 | Hempfield Township | 1953 | Slab | 21 ft | 5,162 | Fair |
| SR 518 Longview RD over Over Bobby Run No. 000000000039487 | City of Hermitage | 1997 | Box Beam or Girders - Multiple | 53 ft | 5,138 | Good |
| SR 3035 Dutch Lane over Over Pine Hollow Run No. 000000000026022 | Municipality of Hermitage | 1973 | Culvert | 34 ft | 4,924 | Fair |
| SR 58 Wilson Ave. over Over Neshannock Creek No. 000000000025676 | Mercer Borough | 1986 | Box Beam or Girders - Multiple | 122 ft | 4,767 | Good |
| SR 318 W.Mdlsx-Mrc over Shenango River No. 000000000056024 | West Middlesex Borough | 2018 | Stringer/Multi-beam or Girder | 234 ft | 4,723 | Good |
| SR 58 Mercer Road over Moury Run No. 000000000048030 | Hempfield Twp | 2013 | Box Beam or Girders - Multiple | 47 ft | 4,707 | Good |
| SR 62 S.Main St. over Over Sandy Creek Trib No. 000000000025721 | Sandy Lake Borough | 1932 | Box Beam or Girders - Multiple | 26 ft | 4,636 | Fair |
| SR 718 State ST over Shenango River No. 000000000044279 | City Sharon | 2007 | Stringer/Multi-beam or Girder | 209 ft | 4,628 | Good |
| SR 58 College Ave. over Over Mathay Run No. 000000000025671 | Hempfield Township | 1939 | Tee Beam | 24 ft | 4,239 | Fair |
| SR 58 Kinsman Road over Faherty Run No. 000000000025667 | Greene Township | 1924 | Box Beam or Girders - Multiple | 26 ft | 4,228 | Fair |
| SR 208 over Over Johnston Run No. 000000000025837 | Springfield Township | 1935 | Stringer/Multi-beam or Girder | 22 ft | 4,143 | Fair |
| SR 173 Liberty ST over Swamp Run No. 000000000048757 | Pine Twp | 2014 | Box Beam or Girders - Multiple | 63 ft | 4,083 | Good |
| SR 62 Franklin Rd. over Over SR 79 Nb/Sb No. 000000000025716 | Jackson Township | 1965 | Stringer/Multi-beam or Girder | 326 ft | 3,913 | Fair |
| SR 62 Franklin Rd. over Over Spring Creek No. 000000000025715 | Coolspring Township | 1948 | Tee Beam | 50 ft | 3,889 | Poor |
| SR 62 Franklin Rd. over Over Otter Creek No. 000000000039593 | Coolsprings Township | 1997 | Box Beam or Girders - Multiple | 60 ft | 3,889 | Good |
| SR 58 E Main Ext over Over Swamp Run Branch No. 000000000025681 | Pine Township | 1955 | Tee Beam | 45 ft | 3,762 | Fair |
| SR 58 Harrisville over Over Swamp Run No. 000000000025682 | Pine Township | 1955 | Tee Beam | 35 ft | 3,762 | Fair |
| SR 62 Franklin Rd. over Over Yellow Creek No. 000000000025717 | Jackson Township | 1948 | Tee Beam | 50 ft | 3,760 | Fair |
| SR 58 S.Diamond ST over Over Munnell Run No. 000000000025675 | Coolspring Township | 1959 | Tee Beam | 29 ft | 3,660 | Good |
| SR 173 Grove City over Over Wolf Creek Trib No. 000000000025825 | Pine Township | 1930 | Tee Beam | 47 ft | 3,657 | Poor |
| SR 173 Grove City over Black Run No. 000000000025827 | Wolf Creek Township | 1923 | Tee Beam | 36 ft | 3,657 | Poor |
| SR 3030 Budd ST over Over Shenango River No. 000000000026019 | City of Sharon | 1965 | Box Beam or Girders - Multiple | 185 ft | 3,501 | Fair |
| SR 3015 Ohio ST over Shenango River No. 000000000026001 | Boro of Wheatland | 1990 | Box Beam or Girders - Multiple | 189 ft | 3,492 | Fair |
| Lincoln Ave over Wolf Creek No. 000000000026340 | 200FT SE of North Broad | 1981 | Stringer/Multi-beam or Girder | 94 ft | 3,473 | Poor |
| Hamburg Road over Mathay Run No. 000000000026147 | 1000FT SW of Rt 58 | 1963 | Culvert | 28 ft | 3,449 | Fair |
| SR 58 Mercer Road over Over Lawango Run No. 000000000025673 | Delaware Township | 1960 | Culvert | 28 ft | 3,409 | Fair |
| SR 318 Hubb-W Mid over Shenango River Trib No. 000000000048789 | Shenango Twp | 2014 | Channel Beam | 24 ft | 3,392 | Good |
| SR 358 Hadley Road over Over Shenango River Br No. 000000000025870 | Otter Creek Township | 1953 | Culvert | 25 ft | 3,344 | Fair |
| SR 358 Hadley Road over Over Shenango River Br No. 000000000025871 | Otter Creek Township | 1953 | Culvert | 53 ft | 3,344 | Fair |
| SR 358 Hadley Road over Over Little Shenango TR No. 000000000025873 | Otter Creek Township | 1934 | Stringer/Multi-beam or Girder | 28 ft | 3,344 | Fair |
| SR 358 Hadley Rd. over Shenango River TR No. 000000000025874 | Otter Creek Township | 1935 | Stringer/Multi-beam or Girder | 22 ft | 3,344 | Fair |
| SR 208 North St. over Over Wolf Creek No. 000000000042413 | Grove City Borough | 2004 | Box Beam or Girders - Multiple | 112 ft | 3,248 | Good |
| SR 18 New Castle R over Over Powell Run No. 000000000025627 | Shenango Township | 1990 | Box Beam or Girders - Multiple | 32 ft | 3,179 | Good |
| SR 2025 N.Liberty over Lake Barmore Outlet No. 000000000044283 | Pine Township | 2007 | Culvert | 35 ft | 3,167 | Good |
| SR 4012 Reynolds R over Over Shenango River No. 000000000026046 | Pymatuning Township | 1960 | Box Beam or Girders - Multiple | 182 ft | 3,153 | Good |
| Hamburg Road over Shenango River Br No. 000000000041948 | 1500FT N of Wasser Bridge | 2003 | Box Beam or Girders - Multiple | 43 ft | 3,134 | Good |
| Oakland Avenue over US 62 No. 000000000043983 | 500FT S of East State ST | 2006 | Frame | 321 ft | 3,127 | Good |
| SR 173 Main Street over Over Sandy Creek No. 000000000025831 | Sandy Lake Borough | 1933 | Stringer/Multi-beam or Girder | 170 ft | 3,079 | Fair |
| Ohl Street over Shenango River No. 000000000026334 | 300-FT E of South 2nd ST | 1909 | Truss - Thru | 256 ft | 3,024 | Poor |
| SR 19 Perry Hwy. over Over Johnston Run No. 000000000025641 | Springfield Township | 1928 | Stringer/Multi-beam or Girder | 37 ft | 2,788 | Poor |
| SR 19 over Neshannock Creek No. 000000000048203 | Springfield Twp. | 2013 | Stringer/Multi-beam or Girder | 148 ft | 2,788 | Good |
| Sandy Lake RD over Mill Creek No. 000000000053934 | New Lebanon Borough | 2017 | Culvert | 27 ft | 2,735 | Good |
| SR 258 Butler Pike over Over Neshannock Creek No. 000000000040160 | Findley Township | 1998 | Box Beam or Girders - Multiple | 108 ft | 2,720 | Good |
| Butler Pike over Pine Run No. 000000000045672 | Findley Township | 2009 | Box Beam or Girders - Multiple | 73 ft | 2,720 | Good |
| SR 358 Hadley Rdad over Over Little Shenango TR No. 000000000025877 | Perry Township | 1984 | Culvert | 20 ft | 2,713 | Fair |
| SR 3012 Clark ST over Over Shenango River No. 000000000025994 | City of Sharon | 1981 | Stringer/Multi-beam or Girder | 224 ft | 2,661 | Fair |
| SR 158 Mercer Rd. over Little Neshannock Creek No. 000000000046213 | Wilmington Township | 2010 | Box Beam or Girders - Multiple | 90 ft | 2,645 | Good |
| SR 0158 Mercer RD over W Br Little Neshannock C No. 000000000047021 | Wilmington Twp | 2011 | Box Beam or Girders - Multiple | 90 ft | 2,645 | Good |
| SR 718 Water St. over Big Run No. 000000000048866 | City of Hermitage | 2014 | Box Beam or Girders - Multiple | 82 ft | 2,645 | Good |
| SR 62 Franklin Rd. over Over Yellow Creek No. 000000000025718 | Jackson Township | 1966 | Box Beam or Girders - Multiple | 31 ft | 2,614 | Fair |
| SR 62 Franklin Rd. over Fox Run No. 000000000070416 | Jackson Township | 2024 | Box Beam or Girders - Single or Spread | 53 ft | 2,614 | Good |
| Butler Pike over Black Run No. 000000000045924 | Liberty Township | 2010 | Box Beam or Girders - Multiple | 58 ft | 2,586 | Good |
| SR 258 Butler Pike over Over Tinkers Run No. 000000000046042 | Liberty Twp | 2010 | Box Beam or Girders - Multiple | 44 ft | 2,586 | Good |
| SR 3018 Buckeye DR over Over Mccullough Run No. 000000000040538 | South Pymatuning Township | 1999 | Box Beam or Girders - Multiple | 40 ft | 2,567 | Good |
| SR 19 Perry Highw over Sandy Creek No. 000000000046942 | Sandy Creek Twp | 2011 | Box Beam or Girders - Multiple | 113 ft | 2,559 | Good |
| SR 19 Perry Hwy. over Black Run No. 000000000052520 | Sandy Creek Twp | 2015 | Box Beam or Girders - Multiple | 47 ft | 2,559 | Good |
| SR 718 Sieg Hill over Over Shenango River No. 000000000025887 | Shenango Township | 1962 | Box Beam or Girders - Multiple | 184 ft | 2,435 | Fair |
| SR 358 Hadley Road over Over SR 79 Nb/Sb No. 000000000025879 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 300 ft | 2,346 | Poor |
| SR 18 Conneaut Lk. over Over Little Shenango R No. 000000000025639 | Sugar Grove Township | 1984 | Culvert | 26 ft | 2,275 | Fair |
| Ramp C. SR 80WB over Over Hogback Run No. 000000000026346 | Shenango Township | 1966 | Culvert | 27 ft | 2,252 | Fair |
| Williamson Road over Over Lt.Shenango River No. 000000000043492 | Hempfield Township | 2006 | Stringer/Multi-beam or Girder | 131 ft | 2,248 | Good |
| SR 19 Perry Hwy. over Over Otter Creek Trib No. 000000000025649 | Coolspring Township | 1930 | Tee Beam | 32 ft | 2,222 | Fair |
| SR 19 Perry Hwy. over Over Otter Creek No. 000000000025652 | Fairview Township | 1995 | Box Beam or Girders - Multiple | 68 ft | 2,222 | Good |
| SR 358 Vernon Road over Big Run No. 000000000025865 | West Salem Township | 1931 | Tee Beam | 44 ft | 2,136 | Fair |
| East Pine Street over Wolf Creek No. 000000000026339 | 500FT E of South Broad ST | 1915 | Box Beam or Girders - Multiple | 98 ft | 2,090 | Fair |
| SR 19 Perry Hwy. over Over Shenango River Trib No. 000000000025657 | Perry Township | 1942 | Stringer/Multi-beam or Girder | 220 ft | 2,013 | Poor |
| S. Orangeville RD over Pymatuning No. 000000000026265 | 2-MI South of Rt 305 | 1965 | Stringer/Multi-beam or Girder | 237 ft | 1,987 | Poor |
| SR 846 Saranac Rd. over Over Shenango Reservoir No. 000000000025897 | South Pymatuning Township | 1964 | Stringer/Multi-beam or Girder | 316 ft | 1,985 | Poor |
| SR 846 Orngvlle RD over Chestnut Run No. 000000000025898 | Pymatuning Township | 1938 | Slab | 24 ft | 1,985 | Fair |
| SR 846 River Road over Over Mccullough Run No. 000000000025896 | City of Hermitage | 1997 | Box Beam or Girders - Multiple | 50 ft | 1,958 | Good |
| SR2005IRISHTOWN RD over Over B.&l.E. R.R. No. 000000000052699 | Pine Township | 2015 | Stringer/Multi-beam or Girder | 146 ft | 1,935 | Good |
| SR 322 Liberty St. over Over Shenango River No. 000000000025862 | Jamestown Borough | 1984 | Stringer/Multi-beam or Girder | 134 ft | 1,902 | Good |
| SR 173 Grove City over Trib to Wolf Creek No. 000000000048028 | Worth Twp | 2013 | Box Beam or Girders - Multiple | 55 ft | 1,873 | Good |
| SR 358 Hadley Road over Over Little Shenango TR No. 000000000025878 | Perry Township | 1929 | Arch - Deck | 50 ft | 1,870 | Fair |
| SR 318 Main ST over Over I-376 Nb/Sb Beaver No. 000000000070400 | Shenango Township | 2024 | Girder and Floorbeam System | 207 ft | 1,813 | Good |
| SR 2025 N Liberty over Over Black Run No. 000000000025976 | Liberty Township | 1952 | Stringer/Multi-beam or Girder | 63 ft | 1,790 | Fair |
| N. Race Street over Little Shenango No. 000000000053323 | 500-FT N of Shenango ST | 2016 | Box Beam or Girders - Multiple | 129 ft | 1,756 | Good |
| SR 173 Grove City over Over Butchery Run No. 000000000025830 | Sandy Lake Township | 1930 | Tee Beam | 23 ft | 1,686 | Fair |
| SR 173 Grove City over Wolf Creek Branch No. 000000000046165 | Worth Twp | 2010 | Box Beam or Girders - Multiple | 64 ft | 1,681 | Good |
| Service Ave over Pine Run No. 000000000026316 | 200-FT South of Rt 62 | 1951 | Slab | 23 ft | 1,637 | Poor |
| SR 62 Main Street over Over Sandy Creek No. 000000000025722 | Sandy Lake Borough | 1991 | Box Beam or Girders - Multiple | 103 ft | 1,592 | Good |
| SR 62 Main ST over Over Sandy Creek Trib No. 000000000025724 | Sandy Lake Township | 1937 | Tee Beam | 29 ft | 1,592 | Fair |
| SR 62 Main ST over Over Sandy Creek Trib No. 000000000025725 | Sandy Lake Township | 1923 | Stringer/Multi-beam or Girder | 26 ft | 1,592 | Fair |
| SR 158 Mercer Road over Over Neshannock Creek TR No. 000000000025820 | Wilmington Township | 1984 | Culvert | 22 ft | 1,572 | Good |
| SR 158 Mercer Road over SR 80 EB & WB No. 000000000025821 | East Lackawannock Twp. | 1965 | Stringer/Multi-beam or Girder | 368 ft | 1,572 | Fair |
| Airport Road over Wolf Creek No. 000000000026185 | 2500-FT E of N Liberty RD | 1985 | Box Beam or Girders - Multiple | 108 ft | 1,547 | Good |
| SR 4017 Werner RD over Little Shenango River No. 000000000026049 | Sugar Grove Township | 1963 | Stringer/Multi-beam or Girder | 209 ft | 1,535 | Fair |
| SR 4017 Warner RD over Over B.&l.E. Railroad No. 000000000039488 | Sugar Grove Township | 1997 | Box Beam or Girders - Multiple | 53 ft | 1,535 | Good |
| SR 1014 Georgetown over Over SR 79 Nb/Sb No. 000000000025925 | Deer Creek Township | 1967 | Box Beam or Girders - Multiple | 327 ft | 1,530 | Fair |
| Sandy Lake Road over Deer Creek No. 000000000045669 | French Creek Twp | 2009 | Box Beam or Girders - Multiple | 94 ft | 1,473 | Good |
| Prindle Street over Pine Run No. 000000000026322 | 100FT West of Rt 62 | 1935 | Tee Beam | 28 ft | 1,437 | Poor |
| Lynnwood Road over Bobby Run No. 000000000042111 | 1000FT North of Rt 760 | 2003 | Box Beam or Girders - Multiple | 38 ft | 1,423 | Good |
| SR 318 W.Middlesex over Over Lt Neshannock Creek No. 000000000025860 | East Lackawannock Twp. | 1956 | Box Beam or Girders - Multiple | 50 ft | 1,409 | Fair |
| Middlesexmercer RD over Little Neshannock Creek No. 000000000053935 | Lackawannock Township | 2017 | Box Beam or Girders - Multiple | 74 ft | 1,409 | Good |
| SR 4006 Porter RD over Little Shenango River No. 000000000042876 | West Salem Township | 2005 | Stringer/Multi-beam or Girder | 136 ft | 1,392 | Good |
| SR 58 Kinsman Road over Over Sugar Creek No. 000000000041241 | Green Township | 2001 | Box Beam or Girders - Multiple | 42 ft | 1,381 | Good |
| SR 258 Lake Road over Over Shenango River Trib No. 000000000025853 | Clark Borough | 1965 | Slab | 29 ft | 1,374 | Fair |
| SR 718 Ivanhoe RD over Mccullough Run No. 000000000047912 | South Pymatuning Twp | 2013 | Box Beam or Girders - Multiple | 51 ft | 1,305 | Good |
| Kinsmen Road over Br. Sugar Creek No. 000000000045847 | Greene Township | 2009 | Box Beam or Girders - Multiple | 48 ft | 1,263 | Good |
| Chestnut Street over Wolf Creek No. 000000000044254 | 1000FT E of North Broad | 2007 | Stringer/Multi-beam or Girder | 305 ft | 1,226 | Good |
| SR 2002 Leesbrg RD over Hunter Run No. 000000000048685 | Springfield Twp. | 2014 | Box Beam or Girders - Multiple | 84 ft | 1,101 | Good |
| SR 4014 Oniontown over Over Shenango River No. 000000000026047 | Delaware Township | 1968 | Stringer/Multi-beam or Girder | 285 ft | 1,095 | Fair |
| SR 1009 L.Wilhelm over Over Lake Wilhelm No. 000000000025917 | New Vernon Township | 1969 | Box Beam or Girders - Multiple | 181 ft | 1,091 | Fair |
| SR 3011 Bethel RD over SR 80 EB & WB No. 000000000025992 | Shenango Township | 1965 | Box Beam or Girders - Multiple | 229 ft | 1,072 | Fair |
| SR 4019 Methodist over Over Little Shenango R No. 000000000026055 | Sugar Grove Township | 1933 | Stringer/Multi-beam or Girder | 47 ft | 1,054 | Poor |
| SR 965 Kilgore Rd. over Over Sandy Creek No. 000000000025903 | Worth Township | 1965 | Tee Beam | 37 ft | 1,035 | Fair |
| SR 258 Lake Road over Over Lacawannock Creek No. 000000000039964 | Jefferson Township | 1997 | Box Beam or Girders - Multiple | 41 ft | 1,015 | Good |
| SR 1001 Fredonia R over Over Little Shenango R No. 000000000025905 | Perry Township | 1955 | Box Beam or Girders - Multiple | 74 ft | 1,003 | Good |
| SR 2014 Scrubgrass over Over Otter Creek No. 000000000025958 | Mercer Borough | 1941 | Girder and Floorbeam System | 97 ft | 985 | Fair |
| SR 2014 Scrubgrass over Cool Spring No. 000000000025959 | Findley Township | 1954 | Stringer/Multi-beam or Girder | 126 ft | 985 | Poor |
| SR 2014 Scrubgrass over Over Mill Creek No. 000000000042867 | Findley Township | 2005 | Stringer/Multi-beam or Girder | 57 ft | 985 | Good |
Structure types in Mercer County
| Box Beam or Girders - Multiple | 186 | 42.6% |
| Stringer/Multi-beam or Girder | 115 | 26.3% |
| Culvert | 58 | 13.3% |
| Slab | 27 | 6.2% |
| Tee Beam | 22 | 5.0% |
| Channel Beam | 13 | 3.0% |
| Truss - Thru | 4 | 0.9% |
| Girder and Floorbeam System | 4 | 0.9% |
| Other | 4 | 0.9% |
| Box Beam or Girders - Single or Spread | 2 | 0.5% |
| Arch - Deck | 1 | 0.2% |
| Frame | 1 | 0.2% |
Other counties in Pennsylvania
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