Mercer County, New Jersey bridges
Mercer County has 413 bridges and culverts in the National Bridge Inventory, the oldest built in 1792. 36 (9%) are rated poor. The most common type is stringer/multi-beam or girder (64%).
- Bridges
- 413
- Good
- 40%
- Fair
- 51%
- Poor
- 9%
- 36 bridges
- Average age
- 49.3 yrs
- Posted or closed
- 19
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
Good40%(165)
Fair51%(212)
Poor9%(36)
When they were built
Busiest
- Route 29 Rampb over Assunpink CreekFair163,000 vehicles/day
- Nj TPK(I-95) over Cedar Swamp BrookFair128,068 vehicles/day
- US 1 over Duck Pond RunFair120,147 vehicles/day
- I-295 Southbound over Franklin Corner RoadFair100,463 vehicles/day
- Nj Tpk (I-95) over Nj 33Fair99,482 vehicles/day
Longest
- I-295 NB over Del Rvr NJ29 PA32Good1,834 ft
- Good
- Rt I-195 Ramp E over WetlandsFair1,802 ft
- US 1 over PA32 NJ29SB Nsrc DelrFair1,325 ft
- Fair
Oldest
- US 206 over Stony BrookFairBuilt 1792
- Old Nj 27 over Millstone RiverPoorBuilt 1798
- Nj 29 over Jacobs CreekFairBuilt 1832
- So Broad ST(US206) over Assunpink CreekPoorBuilt 1843
- Iron Bridge Road over Crosswicks CreekPoorBuilt 1868
All bridges in Mercer County
Busiest first · showing 1–200 of 413| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| Route 29 Rampb over Assunpink Creek No. 1131154 | 0.6 MI NW of 1-29 JCT | 1969 | Stringer/Multi-beam or Girder | 107 ft | 163,000 | Fair |
| Nj TPK(I-95) over Cedar Swamp Brook No. M066230 | 1.3 MI South of Exit 8 | 1950 | Culvert | 23 ft | 128,068 | Fair |
| US 1 over Duck Pond Run No. 1103153 | 2.19 Miles North of I-295 | 1928 | Stringer/Multi-beam or Girder | 25 ft | 120,147 | Fair |
| I-295 Southbound over Franklin Corner Road No. 1138173 | 0.46 MI S. of US 206 JCT | 1973 | Stringer/Multi-beam or Girder | 162 ft | 100,463 | Fair |
| Nj Tpk (I-95) over Nj 33 No. M067890 | 0.3 North of Exit 8 | 1950 | Stringer/Multi-beam or Girder | 83 ft | 99,482 | Fair |
| Nsi & Sni Roadways over Monmouth Street No. M068010 | 0.5 MI North of Int. 8 | 1950 | Stringer/Multi-beam or Girder | 106 ft | 99,482 | Fair |
| Nsi & Sni Roadways over Millstone River No. M068750 | 1.2 MI North of Int. 8 | 1950 | Stringer/Multi-beam or Girder | 111 ft | 99,482 | Fair |
| Nj TPK(I-95) over Assunpink Creek No. M063320 | 2.83 MI North of Exit 7A | 1950 | Stringer/Multi-beam or Girder | 44 ft | 97,420 | Fair |
| Sni & Nsi Roadways over Rocky Brook No. M067270 | 0.3 MI South of Exit 8 | 1950 | Stringer/Multi-beam or Girder | 96 ft | 97,420 | Fair |
| US 1 over Millstone River No. 1103155 | 5.2 MI North of I-295 | 2010 | Box Beam or Girders - Multiple | 112 ft | 93,321 | Good |
| I-295 over Ewing Creek No. 1120152 | 0.81 MI N of I-295 Ext 75 | 1960 | Culvert | 40 ft | 91,741 | Fair |
| Nj Tpk (I-95) over Xwicks-Hamilton Sq RD No. M057550 | 2.5 MI South of Exit 7A | 1951 | Stringer/Multi-beam or Girder | 136 ft | 89,833 | Fair |
| I-295 over Assunpink Creek No. 1138158 | 1.1 MI South of Rt 1 | 1973 | Culvert | 56 ft | 83,293 | Fair |
| I-195 WB over US 130 No. 1134164 | 1.9 MI West of Njtpk JCT | 1972 | Stringer/Multi-beam or Girder | 208 ft | 79,970 | Fair |
| I-295 over Pond Run No. 1137167 | 4.66 MI South of US Rt 1 | 1975 | Culvert | 25 ft | 74,849 | Good |
| I-195 EB over US 130 No. 1134163 | JCT US 130 | 1972 | Stringer/Multi-beam or Girder | 208 ft | 74,800 | Good |
| I-295 over Miry Run No. 1138152 | 0.95 MI N of 295-33 JCT | 1974 | Culvert | 48 ft | 72,682 | Fair |
| US 1 over Nj 33 (market St) No. 1101153 | 0.89 MI No. of Del. Riv. | 1949 | Stringer/Multi-beam or Girder | 96 ft | 72,426 | Fair |
| Nj TPK(I-95) over Doctors Creek No. M057460 | 3 MI South of Exit 7A | 1950 | Culvert | 78 ft | 63,412 | Fair |
| US 1 over PA32 NJ29SB Nsrc Delr No. 3300020 | Trenton | 1952 | Stringer/Multi-beam or Girder | 1,325 ft | 62,951 | Fair |
| Route US 1 over Assunpink Creek No. 1101150 | 0.33 Miles No. of RT.206 | 1949 | Culvert | 39 ft | 62,027 | Good |
| US 1& US 1B SB over Five Mile Run No. 1126156 | 1.4 Miles South of 1-295 | 1973 | Box Beam or Girders - Multiple | 39 ft | 61,742 | Fair |
| Route I-295 over Nj 29NB Nj 175 D&rcanal No. 1120150 | 0.2 MI N of Delaware Riv. | 2019 | Stringer/Multi-beam or Girder | 229 ft | 59,919 | Good |
| I-295 NB over Del Rvr NJ29 PA32 No. 3300081 | .1 Ml S of JCT 29 | 2019 | Stringer/Multi-beam or Girder | 1,834 ft | 58,700 | Good |
| US 1 over US 1 Business N.B. No. 1126154 | 1.52 Miles S of I-295 JCT | 1973 | Stringer/Multi-beam or Girder | 117 ft | 58,378 | Fair |
| Nj 29 Northbound over Market Street No. 1131151 | 0.3 MI NW of 1-29 JCT | 1969 | Stringer/Multi-beam or Girder | 106 ft | 58,186 | Fair |
| Nj TPK(I-95) over Crosswicks CR & U-Turn No. M056920 | 3.5 MI South of Exit 7A | 1951 | Stringer/Multi-beam or Girder | 167 ft | 57,459 | Fair |
| US 1 over Mulberry Street No. 1101161 | 4.0 Miles South of I-295 | 1953 | Stringer/Multi-beam or Girder | 67 ft | 54,055 | Fair |
| US Rt 1 over Nj 29 NB No. 3300021 | At Rt 1 & Rt 29 NB JCT | 1965 | Box Beam or Girders - Multiple | 118 ft | 53,000 | Fair |
| US Route 1 over Union Street No. 3300025 | 1/4 Mi. E.Of Delaware Riv | 1952 | Stringer/Multi-beam or Girder | 79 ft | 53,000 | Fair |
| I-295 SB over Watsons Ck Nj Trnst D&r No. 1136177 | 0.54M S I-195&I-295 JCT | 1994 | Stringer/Multi-beam or Girder | 911 ft | 52,739 | Good |
| I-195 Eastbound over I-195 Ramp "h" No. 1134176 | 0.16 MI East of I-295 JCT | 1994 | Stringer/Multi-beam or Girder | 97 ft | 52,690 | Fair |
| US 1 over Shipetaukin Creek No. 1103151 | 0.4 Miles South of I-295 | 1928 | Stringer/Multi-beam or Girder | 68 ft | 52,322 | Fair |
| Nj 29 over Nj 129 & NJT River Line No. 1130154 | 1.74 MI North of I-295 | 1995 | Stringer/Multi-beam or Girder | 254 ft | 51,688 | Good |
| I-295 Northbound over Franklin Corner RD (546) No. 1138172 | 1.5 MI North of Rt 1 | 1973 | Stringer/Multi-beam or Girder | 160 ft | 49,720 | Fair |
| I-295 NB over D&r Canal & Shipetaukin No. 1138168 | At US 1 Intersection | 1974 | Stringer/Multi-beam or Girder | 182 ft | 49,700 | Fair |
| I-295 SB over D&r Canal & Shipetaukin No. 1138169 | At US 1 Intersection | 1974 | Stringer/Multi-beam or Girder | 182 ft | 49,700 | Fair |
| I-295 SB over Ramp I-295 SB to US 1 NB No. 1138163 | 0.11 M South of US 1 Jct. | 1974 | Stringer/Multi-beam or Girder | 80 ft | 49,237 | Fair |
| Nj 29 and Ramp B over Ramp D No. 1131152 | 0.5 MI N of US 1 JCT | 1969 | Stringer/Multi-beam or Girder | 79 ft | 48,223 | Fair |
| Route Nj 29 SB over Wetlands No. 1130151 | 0.14 MI West of I-295 | 1995 | Stringer/Multi-beam or Girder | 962 ft | 48,025 | Good |
| I-295 SB over US 1 and Ramps "a" & "b" No. 1138165 | At US 1/I-295 Intersectin | 1974 | Stringer/Multi-beam or Girder | 180 ft | 47,508 | Fair |
| US 1 & Ramp over D&r Canal No. 1103152 | 0.31 Miles South of I-295 | 1959 | Frame | 77 ft | 46,528 | Fair |
| I-295 NB & Ramp over I-295 Ramp C No. 1138162 | At US 1 Interchange | 1974 | Stringer/Multi-beam or Girder | 76 ft | 45,885 | Fair |
| I-295 SB over Duck Creek No. 1136180 | 1.5 MI S of I-195/29 JCT | 1994 | Stringer/Multi-beam or Girder | 475 ft | 43,380 | Good |
| US 1 over Whitehead Rd.(co Rt 616) No. 1126150 | 3.8 MI North of Del. Riv. | 1973 | Stringer/Multi-beam or Girder | 104 ft | 43,142 | Fair |
| US Route 1 over D&r Canal No. 1126151 | 4.0 Miles No.Of Del.Riv. | 1973 | Stringer/Multi-beam or Girder | 436 ft | 43,117 | Poor |
| I-295 NB over Duck Creek No. 1136178 | 1.5 MI S I-195/29 JCT | 1994 | Stringer/Multi-beam or Girder | 724 ft | 42,010 | Good |
| I-295 Northbound over Amtrak(ne Corridor) No. 1138156 | 1.46 MI South of US 1 | 1975 | Stringer/Multi-beam or Girder | 288 ft | 41,214 | Fair |
| I-295 Southbound over NE Corridor Line(amtrak) No. 1138157 | 1.46 MI South of US 1 | 1975 | Stringer/Multi-beam or Girder | 288 ft | 41,214 | Fair |
| I-295 over Sand Run No. 1138159 | .2 MI South of US 1 | 1973 | Culvert | 21 ft | 40,561 | Fair |
| I-195 WB over Conrail (abandoned) No. 1134161 | 0.65 MI W of US 130 | 1973 | Stringer/Multi-beam or Girder | 194 ft | 40,380 | Fair |
| I-295 NB over Watsons Crk Nj Trnst D&r No. 1136176 | 0.54 MI S I195 & I295 JCT | 1994 | Stringer/Multi-beam or Girder | 973 ft | 40,016 | Good |
| I-195 WB over I-295 Ramp H No. 1134177 | 0.14 MI East of I-295 | 1994 | Stringer/Multi-beam or Girder | 97 ft | 38,847 | Good |
| Nj Rt 29 NB over Watsons Creek No. 1130152 | 0.41MI West of 206 Int. | 1995 | Stringer/Multi-beam or Girder | 992 ft | 38,619 | Fair |
| Nj Rt 29 SB over Watsons Creek No. 1130153 | 0.39 MI N of I-295 JCT | 1995 | Stringer/Multi-beam or Girder | 992 ft | 38,458 | Good |
| I-195 EB over Conrail (abandoned) No. 1134160 | 0.65 Mi. W of US 130 | 1973 | Stringer/Multi-beam or Girder | 204 ft | 38,127 | Fair |
| I-195 WB over Klockner Road No. 1134159 | 0.8MI West of US130 | 1973 | Stringer/Multi-beam or Girder | 106 ft | 38,119 | Fair |
| I-195 Westbound over S Broad ST Eb(cr 524) No. 1134154 | On I-195 Wb/Cr 524 EB | 1986 | Stringer/Multi-beam or Girder | 147 ft | 37,610 | Fair |
| I-295 over Bakers Basin Road No. 1138160 | .98 MI South of Rt 1 | 1974 | Stringer/Multi-beam or Girder | 109 ft | 37,070 | Fair |
| I-195 EB over Klockner Road No. 1134158 | 0.8 MI West of US 130 JCT | 1973 | Stringer/Multi-beam or Girder | 106 ft | 37,013 | Fair |
| I-295 SB over Bakers Basin Road No. 1138161 | .98 MI South of Rt 1 | 1974 | Stringer/Multi-beam or Girder | 109 ft | 36,970 | Fair |
| I-295 Northbound over Arena Drive (cr 620) No. 1137162 | 1.2MI N of 195/295 Intchg | 1984 | Stringer/Multi-beam or Girder | 139 ft | 36,820 | Fair |
| I-295 NB over Hamilton Ave. (CT.RT606) No. 1137171 | 3.7 MI South of Rt 1 | 1975 | Stringer/Multi-beam or Girder | 110 ft | 36,705 | Fair |
| I-295 SB over Hamilton Avenue (cr 606) No. 1137172 | 3.7 MI S. of US 1 | 1975 | Stringer/Multi-beam or Girder | 110 ft | 36,705 | Fair |
| I-295 NB over I-195 No. 1136153 | JCT I-295&I-195/NJ 29 | 1994 | Stringer/Multi-beam or Girder | 233 ft | 36,628 | Good |
| I-295 Southbound over I-195 No. 1136154 | At I-295 Exit 60 | 1995 | Stringer/Multi-beam or Girder | 233 ft | 36,341 | Good |
| Interstate I295NB over S.Olden AVE.(CO.RTE.622) No. 1137164 | 1.66MI N of I195/I295 Int | 1984 | Stringer/Multi-beam or Girder | 101 ft | 36,240 | Fair |
| US 130 over Rocky Brook No. 1123152 | 0.35 MI N of CR 571 JCT | 1936 | Stringer/Multi-beam or Girder | 56 ft | 35,803 | Fair |
| I-295 Northbound over East State ST Extension No. 1138150 | At I-295 Exit 64 | 1974 | Stringer/Multi-beam or Girder | 136 ft | 35,762 | Fair |
| US 130 over Back Brook No. 1122153 | 1.4 MI South of I-195 | 1928 | Slab | 23 ft | 35,596 | Fair |
| I-195 Eastbound over South Broad ST E.B. No. 1134153 | 0.7 Mi. East of Rt 206 | 1986 | Stringer/Multi-beam or Girder | 145 ft | 35,446 | Fair |
| I-295 SB over Arena Drive (cr 620) No. 1137163 | At I-295 Exit 61 | 1984 | Stringer/Multi-beam or Girder | 139 ft | 35,160 | Fair |
| I-195 WB over Nj Turnpike No. 1135151 | 1.94 MI E of US 130 JCT | 2012 | Stringer/Multi-beam or Girder | 436 ft | 35,155 | Good |
| Route I-295 NB over Ramp Connecting 29 NB No. 1136155 | 0.1 MI West of I-195 | 1994 | Stringer/Multi-beam or Girder | 98 ft | 34,917 | Good |
| US1 & D&r Canal over Shabakunk Creek No. 1126153 | 0.45 Mi. N. of CR 616 | 1973 | Culvert | 60 ft | 33,922 | Fair |
| I-295 SB over E.State St. (co.Rt 535) No. 1138151 | 3 MI South of Rt 1 | 1974 | Stringer/Multi-beam or Girder | 134 ft | 33,633 | Good |
| I-295 Southbound over I-195 Ramp "h" No. 1136156 | At I-295 Exit 60 | 1994 | Stringer/Multi-beam or Girder | 96 ft | 33,520 | Good |
| I-195 EB over Njtp & Ramp Tp SB to 195 No. 1135150 | 1.94 MI E of US 130 JCT | 2014 | Stringer/Multi-beam or Girder | 436 ft | 33,429 | Good |
| I-295 Southbound over Shabakunk Creek Branch No. 1120164 | 1.01 MI North Nj Rt 31 | 1973 | Culvert | 22 ft | 33,237 | Fair |
| Quaker Bridge Road over AMTRAK No. 1157801 | 1.3 Miles S of Route 1 | 1966 | Box Beam or Girders - Multiple | 180 ft | 33,105 | Poor |
| I-295 SB over Nottingham Way (nj 33) No. 1137175 | 3.6 MI South of Rt 1 | 1974 | Stringer/Multi-beam or Girder | 142 ft | 32,949 | Fair |
| US 130 over Millstone River No. 1123153 | 0.66 Mi. N of NJ133 JCT | 1936 | Stringer/Multi-beam or Girder | 56 ft | 32,880 | Poor |
| Nj 129 NB over AMTRAK NE Corridor No. 1140151 | 0.17 MI N. of Hamilton Av | 1992 | Stringer/Multi-beam or Girder | 120 ft | 32,630 | Fair |
| Njtpk (I-95) over Nj 33 No. M06789S | 0.29 MI North of Exit 8 | 2013 | Stringer/Multi-beam or Girder | 135 ft | 32,299 | Good |
| Njtpk (I-95) over Monmouth Street No. M06801S | 0.41 MI North of Exit 8 | 2013 | Stringer/Multi-beam or Girder | 102 ft | 32,299 | Good |
| Njtpk (I-95) over Millstone River No. M06875S | 1.15 MI North of Exit 8 | 2014 | Box Beam or Girders - Multiple | 107 ft | 32,299 | Fair |
| I-295 NB over Nottingham Way (nj 33) No. 1137174 | 3.6 MI South of Rt 1 | 1974 | Stringer/Multi-beam or Girder | 142 ft | 31,534 | Fair |
| Njtpk Nso Roadway over Assunpink Creek No. M06332S | 2.83 MI North of Int. 7A | 2012 | Stringer/Multi-beam or Girder | 48 ft | 31,453 | Good |
| Njtpk (I-95) over Rocky Brook No. M06727S | 0.3 MI South of Int 8 | 2013 | Stringer/Multi-beam or Girder | 96 ft | 31,453 | Good |
| Nj 129 NB over US 1 Ramp "g" No. 1140153 | 0.21 MI N of CR 606 | 1994 | Stringer/Multi-beam or Girder | 80 ft | 31,443 | Good |
| I-295 Southbound over South Olden Ave. No. 1137165 | 1.66 MI N of I-195 JCT | 1984 | Stringer/Multi-beam or Girder | 101 ft | 31,215 | Fair |
| Route Nj 29 NB over Wetlands No. 1130150 | 0.1 MI West of RT.I-295 | 1995 | Stringer/Multi-beam or Girder | 963 ft | 30,480 | Good |
| US 130 & Nj 33 over Assunpink Creek No. 1114151 | 3.58 MI N of I-195 JCT | 1935 | Stringer/Multi-beam or Girder | 55 ft | 29,781 | Fair |
| Njtpk (I-95) over Doctorss Creek No. M05746S | 3 MI South of Exit 7A | 2013 | Stringer/Multi-beam or Girder | 133 ft | 29,131 | Good |
| Njtpk (I-95) over Crosswick-Hamilton Sq RD No. M05755S | 2.8 MI South of Exit 7A | 2013 | Stringer/Multi-beam or Girder | 146 ft | 29,131 | Good |
| I-195 Eastbound over S.Broad ST & Arena Drive No. 1134171 | 0.74 MI East of Rt 206 | 1986 | Stringer/Multi-beam or Girder | 329 ft | 28,815 | Good |
| I-195 Westbound over S Broad ST WB & Arena DR No. 1134172 | 0.74 MI E of US 206 JCT | 1986 | Stringer/Multi-beam or Girder | 387 ft | 28,815 | Fair |
| Nj 31 over Trenton Line (csx Rr) No. 1119150 | 1.0 MI North of CR 546 | 2018 | Stringer/Multi-beam or Girder | 110 ft | 28,699 | Good |
| Njtpk (I95) over Nj 33 No. M06789N | 0.29 MI North of Exit 8 | 2013 | Stringer/Multi-beam or Girder | 133 ft | 28,397 | Good |
| Njtpk (I-95) over Monmouth Street No. M06801N | 0.41 MI North of Exit 8 | 2013 | Stringer/Multi-beam or Girder | 104 ft | 28,397 | Good |
| Njtpk (I-95) over Millstone River No. M06875N | 1.15 MI North of Exit 8 | 2014 | Box Beam or Girders - Multiple | 107 ft | 28,397 | Good |
| US 1 Southbound over Ramp to Olden Av (CR622) No. 1101159 | 4.5 Miles South of 1-295 | 1953 | Stringer/Multi-beam or Girder | 100 ft | 28,392 | Fair |
| Njtpk Sno Roadway over Assunpink Creek No. M06332N | 3.32 MI North of Int. 7A | 2012 | Stringer/Multi-beam or Girder | 46 ft | 27,952 | Good |
| Njtpk (I-95) over Rocky Brook No. M06727N | 0.3MI South Int 8 | 2013 | Stringer/Multi-beam or Girder | 93 ft | 27,952 | Good |
| CR 533 over Assunpink Creek No. 1100016 | 1 Mile S. of CR 608 | 2008 | Box Beam or Girders - Multiple | 81 ft | 26,995 | Good |
| Ramps Tw & Wt over Nj Route 33 No. M06747G | 0.51 Mi. E. of Njta | 2012 | Stringer/Multi-beam or Girder | 259 ft | 26,986 | Good |
| N.Olden AVE.CR.622 over Shabakunk Creek No. 1100010 | 1 Mi. North of US Route 1 | 2014 | Stringer/Multi-beam or Girder | 23 ft | 25,995 | Good |
| Njtpk (I-95) over Crosswicks-Hamilton Sq. No. M05755N | 2.8 MI South of Exit 7A | 2013 | Stringer/Multi-beam or Girder | 166 ft | 25,672 | Good |
| I-295 SB over D&r Canal&shipetaukin Ck No. 1138167 | At Rt 1 Interchange | 1974 | Stringer/Multi-beam or Girder | 174 ft | 25,120 | Fair |
| US 130 over Doctors Creek No. 1122150 | 0.5 MI S of 130-524 JCT | 1951 | Stringer/Multi-beam or Girder | 57 ft | 25,095 | Fair |
| Bridge Street over Nj 29 NB No. 1131150 | 0.05 MI North of US 1 | 1970 | Stringer/Multi-beam or Girder | 133 ft | 24,972 | Fair |
| US 206 over I-195 No. 1134151 | Rt I-195 & US 206 Inter. | 1985 | Stringer/Multi-beam or Girder | 238 ft | 24,860 | Fair |
| N Olden Ave CR 622 over Rt. US 1 and Conrail No. 1100050 | 0.97 MI N of Rt. 33 Int. | 1994 | Stringer/Multi-beam or Girder | 355 ft | 24,277 | Good |
| Nj 31(PENN.RD) over I-295 No. 1120160 | At I-295 Exit 72 | 1974 | Stringer/Multi-beam or Girder | 264 ft | 24,165 | Fair |
| South Olden Avenue over AMTRAK NE Corridor No. 1149167 | 0.55 Miles South of US 1 | 1923 | Girder and Floorbeam System | 110 ft | 22,960 | Poor |
| Nj 133 WB over Rocky Brook No. 1143169 | 0.47 MI West of Route 130 | 1998 | Stringer/Multi-beam or Girder | 224 ft | 22,746 | Good |
| I-295 NB over US 1 & Ramps a & B No. 1138164 | At U.S 1 Intersection | 1974 | Stringer/Multi-beam or Girder | 191 ft | 22,471 | Fair |
| Alexander Road over Tributary to Stony Brook No. 1103311 | .22 M N of D&r Canal | 2019 | Frame | 25 ft | 22,260 | Good |
| U.S. 1B over Five Mile Run No. 1102150 | 1.1 Miles No- of Rt 206 | 1928 | Stringer/Multi-beam or Girder | 69 ft | 22,136 | Poor |
| Nj 29 NB over Nj 29 Ramp Ci No. 1106155 | 0.61 MI N of JCT Rt 1 | 1969 | Stringer/Multi-beam or Girder | 92 ft | 22,131 | Fair |
| Nj 29 SB over Assunpink Creek No. 1131156 | 0.6 MI NW of 1-29 JCT | 1969 | Stringer/Multi-beam or Girder | 114 ft | 22,041 | Fair |
| Nj 29 NB over Assunpink Creek No. 1131155 | 0.6 MI N of 1-29 JCT | 1969 | Stringer/Multi-beam or Girder | 109 ft | 22,036 | Fair |
| Hightstown Road over Bear Brook No. 1107627 | 1.13 Mile S of Rt 526 | 2013 | Box Beam or Girders - Multiple | 38 ft | 21,930 | Fair |
| Yardvile-Ham Sq RD over I-195 No. 1134157 | At I-195 Exit 3 | 1973 | Stringer/Multi-beam or Girder | 244 ft | 21,902 | Fair |
| US 206 (s. Broad) over Route I-295 No. 1137158 | .8 MI N of Whitehorse Cir | 1986 | Stringer/Multi-beam or Girder | 214 ft | 21,155 | Good |
| Qukrbrdg RD CR533 over Miry Run No. 1100023 | 0.66 Mile North of CR 535 | 1936 | Stringer/Multi-beam or Girder | 27 ft | 20,985 | Poor |
| Njtpk Ramps Et&tw over I-195 No. M06051B | At Int. 7A | 1972 | Stringer/Multi-beam or Girder | 178 ft | 20,654 | Fair |
| I-295 SB over Del R Pa 32 Nj 29 SB No. 3300082 | At Delaware River | 2021 | Stringer/Multi-beam or Girder | 1,814 ft | 19,969 | Good |
| Quakerbridge Road over US 1 No. 1103157 | 0.36 MI S. of CR569 | 1987 | Stringer/Multi-beam or Girder | 260 ft | 19,769 | Fair |
| US 206 over Five Mile Run No. 1129151 | 0.84 MI S of I-295 JCT | 2000 | Slab | 36 ft | 19,514 | Good |
| Mercer CR 524 over Gropp Lake No. 1116150 | 0.28 Miles East of I-195 | 1931 | Stringer/Multi-beam or Girder | 45 ft | 19,225 | Fair |
| Nj 29 NB over Parkside Ave (cr 636) No. 1107150 | 0.73 MI S of CR 579 JCT | 1956 | Stringer/Multi-beam or Girder | 65 ft | 19,093 | Fair |
| Spruce ST (cr 613) over Branch Shabakunk Creek No. 1100006 | 0.5 Mile NW of US 206 | 1950 | Stringer/Multi-beam or Girder | 35 ft | 18,625 | Fair |
| Princeton Pk CR583 over Shipetaukin Creek No. 1100020 | 1.2 Mile West of US 1 | 1953 | Stringer/Multi-beam or Girder | 34 ft | 18,610 | Fair |
| Klockner Road over Edges Brook No. 1100030 | 0.33 Mile E of US 130 | 1988 | Culvert | 24 ft | 17,750 | Fair |
| US 206 over Stoney Brook Flood Chanl No. 1129154 | .05 Mile South of 533 JCT | 1924 | Box Beam or Girders - Multiple | 70 ft | 17,624 | Good |
| Sweet Briar Avenue over Miry Run No. 1106411 | .4 MI E of Whitehead Road | 2014 | Box Beam or Girders - Multiple | 73 ft | 17,490 | Good |
| Princeton Pk CR583 over Stony Brook No. 1100005 | 0.14 S. Quakerbridge Rd. | 1900 | Arch - Deck | 111 ft | 17,410 | Fair |
| Meadow Road over US Route 1 No. 1103159 | 2.7MI North of I-295 JCT | 2003 | Stringer/Multi-beam or Girder | 230 ft | 17,228 | Good |
| US 206 over Shipetaukin Creek No. 1129153 | 0.1 Mile North of 569 JCT | 1923 | Arch - Deck | 59 ft | 17,222 | Fair |
| Bear Tvrn RD-CR579 over Jacobs Creek No. 1100060 | 0.1 MI S.Of Maddock RD | 2013 | Stringer/Multi-beam or Girder | 89 ft | 17,195 | Good |
| Jacobs Ck RD-CR579 over Ewing Creek No. 1100062 | 1.18 MI North of I95 | 2013 | Frame | 43 ft | 17,195 | Good |
| Mulberry Street over Delaware & Raritan Canal No. 3000150 | 1/8 Mile West of RTE US 1 | 1953 | Culvert | 27 ft | 17,156 | Fair |
| Nj 133 over Trib. of Millstone River No. 1143165 | 1.18 Ml W of US 130 Jct. | 2000 | Culvert | 82 ft | 16,825 | Good |
| Nj 31 over Stony Brook No. 1119156 | 4.2 MI S of 31-202 JCT | 1929 | Slab | 38 ft | 16,541 | Good |
| Nj 29 to Pa 32 over Delaware River No. 3300060 | Nj 29 @ MP 4.34 | 1884 | Truss - Thru | 1,277 ft | 16,500 | Fair |
| Alexander Road over US 1 No. 1103158 | 0.4 MI South of CO Rt 571 | 1996 | Stringer/Multi-beam or Girder | 197 ft | 16,369 | Fair |
| Clarksville Road over Duck Pond Run No. 1100044 | 0.8 Mile W of Post Road | 1931 | Stringer/Multi-beam or Girder | 25 ft | 16,240 | Fair |
| Greenwood AV(NJ33) over AMTRAK & Nj Transit No. 1101151 | 0.13 Miles East of US 1 | 1949 | Stringer/Multi-beam or Girder | 168 ft | 16,238 | Fair |
| Alexander Road over Stony Brook No. 1100065 | 0.6 MI North of US 1 | 2019 | Stringer/Multi-beam or Girder | 93 ft | 16,224 | Good |
| Clarksville Road over AMTRAK NE Corridor No. 1149172 | 1.98 Miles West of Rt 571 | 1900 | Girder and Floorbeam System | 142 ft | 15,867 | Poor |
| Washington Road over D & R Canal No. 3000156 | 0.74 MI West of US 1 JCT | 2024 | Slab | 68 ft | 15,770 | Good |
| Alexander Road over Little Bear Brook No. 1107612 | 0.8 Mile South of US 1 | 1982 | Culvert | 20 ft | 15,760 | Fair |
| Ewingvl Rd(cr 636) over E.Branch Shabakunk Creek No. 1100011 | 100 N. of CR 648 | 2009 | Stringer/Multi-beam or Girder | 31 ft | 15,515 | Fair |
| N Olden Ave CR 622 over Pcrr Sidetrack (aban) No. 1151163 | 1.4MI NE of US1&US206 JCT | 1930 | Slab | 41 ft | 15,362 | Poor |
| Bridge Street over Delaware Riv & Nj 29 SB No. 3300040 | Nj 29 SB | 1928 | Truss - Thru | 1,021 ft | 15,300 | Fair |
| US 206 over I-295 No. 1138174 | 1.9 MI North of US 1 | 1973 | Stringer/Multi-beam or Girder | 247 ft | 15,004 | Fair |
| Sloan Ave over I-295 No. 1138153 | 1.64MI E of CR616 | 1974 | Stringer/Multi-beam or Girder | 258 ft | 14,966 | Fair |
| Alexander Road over AMTRAK No. 1149173 | 1.30 Mile South of Rt 1 | 2009 | Stringer/Multi-beam or Girder | 88 ft | 14,920 | Good |
| CR579(BEAR Tavern) over I-295 No. 1120151 | 1.32 MI S. of Nj 175 | 1960 | Stringer/Multi-beam or Girder | 152 ft | 14,903 | Fair |
| Sloan Avenue over AMTRAK & Access Road No. 1149169 | 0.65 MI W of 295 Exit 65 | 1984 | Stringer/Multi-beam or Girder | 448 ft | 14,760 | Fair |
| Ramp Tn over Njtpk (I-95) No. M06051D | At Interchange 7A | 2014 | Stringer/Multi-beam or Girder | 465 ft | 14,420 | Good |
| Ramp Tn over I-195 No. M06051G | At Interchange 7A | 2012 | Stringer/Multi-beam or Girder | 222 ft | 14,420 | Good |
| CR533 over Pond Run No. 1106427 | 0.7 Mile South of I-295 | 1974 | Culvert | 28 ft | 14,345 | Good |
| Prospect Street over Shabakunk Creek No. 1100009 | 0.23 Mile S. of Olden Ave | 1930 | Stringer/Multi-beam or Girder | 24 ft | 14,195 | Poor |
| Ramp "b" over Hamilton Ave. (cr. 606) No. 1137173 | At I-295 Exit 63 | 1974 | Stringer/Multi-beam or Girder | 107 ft | 14,160 | Good |
| Province Line Road over Branch of Stony Brook No. 1100014 | 0.4 Miles South of CR 583 | 1995 | Culvert | 20 ft | 14,135 | Fair |
| CR 569 over D&r Canal No. 1105202 | 0.33 M No of Quaker Br RD | 2007 | Box Beam or Girders - Multiple | 82 ft | 14,135 | Fair |
| N Olden Ave-Cr 622 over Assunpink Creek No. 1100056 | 0.14 MI N of AMTRAK | 1937 | Stringer/Multi-beam or Girder | 73 ft | 14,115 | Good |
| Nj 129 SB over Market Street No. 1140155 | 0.27MI N of CR606 | 1994 | Stringer/Multi-beam or Girder | 117 ft | 14,047 | Good |
| Perry Street over US 1 No. 1101156 | 1.4 Miles No of Del.Riv. | 1951 | Stringer/Multi-beam or Girder | 90 ft | 14,010 | Fair |
| Nj Route 133 WB over US Route 130 No. 1143171 | 0.81 MI West of RTE 571 | 1998 | Stringer/Multi-beam or Girder | 173 ft | 14,004 | Good |
| Ewingville Road over Shabakunk Creek No. 1100012 | 0.35M South of Nj RT.31 | 2000 | Box Beam or Girders - Single or Spread | 31 ft | 13,882 | Good |
| Nj 29 over Jacobs Creek No. 1110152 | 1.37 MI N of I-295 JCT | 1832 | Culvert | 25 ft | 13,858 | Fair |
| Nj 129 SB over US1;RMP Frm US1NB&AMTRAK No. 1140152 | 2.3MI NW of I295 & Nj JCT | 1994 | Stringer/Multi-beam or Girder | 537 ft | 13,811 | Good |
| Nj 27 over Harrys Brook No. 1105150 | 0.7 MI S. of Millstone Ri | 2004 | Culvert | 21 ft | 13,725 | Good |
| Old Trent RD CR535 over Big Bear Brook No. 1100046 | 0.9 Mile South of CR 571 | 2008 | Frame | 28 ft | 13,710 | Fair |
| Nj 64 over AMTRAK No. 1117150 | 0.22 Mi. S. of CR 571 | 1939 | Girder and Floorbeam System | 104 ft | 13,685 | Poor |
| Nj 133 EB over Nj Turnpike No. 1143176 | 0.63 Miles West of Nj 33 | 1998 | Stringer/Multi-beam or Girder | 352 ft | 13,615 | Fair |
| Nj 133 WB over Nj Turnpike No. 1143177 | 0.63 MI West of Nj 33 | 1998 | Stringer/Multi-beam or Girder | 352 ft | 13,615 | Fair |
| Whitehd Rd(co 616) over Delaware & Raritan Canal No. 3000151 | 0.8 MI Ene of 1 & 206 JCT | 1954 | Slab | 48 ft | 13,610 | Poor |
| Washington RD over Carnegie Lake No. 1100037 | 0.8 MI NW of US Rt 1 | 1905 | Arch - Deck | 395 ft | 13,599 | Poor |
| Nj 29 over Nj 175& D&r Canal Feeder No. 1109151 | 0.27 MI North of I-95 JCT | 1960 | Stringer/Multi-beam or Girder | 412 ft | 13,593 | Poor |
| RAMP(I195EBTO206SB over Crosswicks Creek No. 1134152 | At I-195 Exit 1 | 1986 | Stringer/Multi-beam or Girder | 191 ft | 13,356 | Good |
| Princeton Pike over I-295 Ramps B and D No. 1138171 | 1 MI N of US 1 & I295 JCT | 1973 | Stringer/Multi-beam or Girder | 280 ft | 13,255 | Poor |
| Princeton Pike over Five Mile Run No. 1100018 | 0.58 MI S of I-95 JCT | 1999 | Slab | 36 ft | 13,254 | Fair |
| 129SB Ramp to 29SB over Nj 129 NB & Nj Transit No. 1130155 | 1.6 MI North of I-295 | 1995 | Stringer/Multi-beam or Girder | 305 ft | 13,252 | Good |
| 29NB Ramp to 129NB over Nj 129 NB & Nj Transit No. 1130156 | 1.64MI N of I-295&NJ29JCT | 1995 | Stringer/Multi-beam or Girder | 465 ft | 13,252 | Fair |
| I-295 Ramps G & C over D&r Canal&shipetaukin Ck No. 1138170 | At Rt 1 Intersection | 1974 | Stringer/Multi-beam or Girder | 275 ft | 13,227 | Good |
| Carter RD (cr 569) over Stony Brook No. 1100043 | 2.4 MI North of US 206 | 1989 | Stringer/Multi-beam or Girder | 175 ft | 13,193 | Fair |
| Alexander Road over Delaware & Raritan Canal No. 3000155 | 3/4 MI W of Rts 1&571 JCT | 1948 | Stringer/Multi-beam or Girder | 48 ft | 12,903 | Good |
| Elm Road over Branch of Stony Brook No. 1133510 | 1 MI N of Rt 206 | 1963 | Channel Beam | 36 ft | 12,817 | Fair |
| Nj 133 WB over Wyckoff Mills Road No. 1143175 | 0.21 MI W of Njtpk JCT | 1998 | Stringer/Multi-beam or Girder | 82 ft | 12,798 | Good |
| Nj 133 EB over Wyckoff Mills Road No. 1143174 | 0.84 MI West of Route 33 | 1998 | Stringer/Multi-beam or Girder | 82 ft | 12,797 | Good |
| Nj 133 WB over North Main ST (539) No. 1143173 | 0.45 MI East of RTE 130 | 1998 | Stringer/Multi-beam or Girder | 79 ft | 12,720 | Good |
| Nj 27 over Millstone River No. 1105152 | 3.08 MI N US 206 JCT | 1970 | Stringer/Multi-beam or Girder | 184 ft | 12,700 | Fair |
| Nj 133 EB over North Main ST (cr 539) No. 1143172 | 0.45 MI East of RTE 130 | 1998 | Stringer/Multi-beam or Girder | 79 ft | 12,472 | Good |
| Yrdvlle-Allntwn RD over US 130 No. 1122156 | 1.59 MI W of Nj Turnpike | 1951 | Stringer/Multi-beam or Girder | 127 ft | 12,471 | Poor |
| Hamilton-Yardville over Back Edge Brook No. 1106713 | 0.5 MI S of I-195 JCT | 1995 | Slab | 38 ft | 12,418 | Fair |
| Whitehead Road over AMTRAK NE Corridor No. 1149168 | 0.8 MI South of US 1 | 1999 | Stringer/Multi-beam or Girder | 393 ft | 12,372 | Good |
Structure types in Mercer County
| Stringer/Multi-beam or Girder | 264 | 63.9% |
| Slab | 36 | 8.7% |
| Culvert | 35 | 8.5% |
| Box Beam or Girders - Multiple | 30 | 7.3% |
| Frame | 12 | 2.9% |
| Truss - Thru | 11 | 2.7% |
| Girder and Floorbeam System | 11 | 2.7% |
| Arch - Deck | 10 | 2.4% |
| Tee Beam | 2 | 0.5% |
| Channel Beam | 1 | 0.2% |
| Box Beam or Girders - Single or Spread | 1 | 0.2% |
Other counties in New Jersey
- Atlantic County 207
- Bergen County 577
- Burlington County 355
- Camden County 261
- Cape May County 74
- Cumberland County 102
- Essex County 505
- Gloucester County 243
- Hudson County 202
- Hunterdon County 373
- Middlesex County 563
- Monmouth County 508
- Morris County 509
- Ocean County 240
- Passaic County 333
- Salem County 114
- Somerset County 397
- Sussex County 172
- Union County 409
- Warren County 268