Stringer/Multi-beam or Girder bridges in Iowa
Long beams (girders) placed parallel to traffic that carry the deck. The most common bridge type in the United States. Iowa has 10,700 of them, 45.1% of its bridges. Nationally this type accounts for 38.7% of all bridges.Compare states for this type.
- Stringer/Multi-beam or Girder bridges
- 10,700
- Poor condition
- 24%
- 2,543 bridges
- Average age
- 50.1 yrs
- Combined length
- 320 mi
Busiest stringer/multi-beam or girder bridges in Iowa
Top 200 by daily traffic| Bridge | County | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|---|
| I29 NB Off Ramp over Perry Creek Conduit No. 000000000604021 | Woodbury County | 0.1 MI S of JCT US 77 | 2017 | Stringer/Multi-beam or Girder | 94 ft | 91,000 | Good |
| I 235 over Des Moines Rvr Rbrtraydr No. 000000000042740 | Polk County | 4.6 Miles E of JCT Ia 28 | 1962 | Stringer/Multi-beam or Girder | 864 ft | 88,200 | Good |
| I-380 over E and F Ave NW Cedar Rvr No. 000000000603700 | Linn County | 0.3 MI N. US 151(1st Ave) | 1979 | Stringer/Multi-beam or Girder | 685 ft | 57,600 | Fair |
| EB I-235 over 17th ST No. 000000000042220 | Polk County | 1.3 Mi. W of Jct. Ia 28 | 1967 | Stringer/Multi-beam or Girder | 145 ft | 56,600 | Fair |
| WB I-235 over 17th ST No. 000000000042230 | Polk County | 1.3 Mi. W of Jct. Ia 28 | 1967 | Stringer/Multi-beam or Girder | 145 ft | 56,600 | Fair |
| NB I-35 EB I-80 over Walnut Creek No. 000000000041280 | Polk County | 0.3 Mi. W of Jct. 6 | 1958 | Stringer/Multi-beam or Girder | 414 ft | 55,950 | Fair |
| EB I-235 over 35th Street No. 000000000042381 | Polk County | 2.0 Miles E of JCT Ia 28 | 2004 | Stringer/Multi-beam or Girder | 163 ft | 55,350 | Good |
| WB I-235 over 35th Street No. 000000000042391 | Polk County | 2.1 Mi. E of Jct. Ia #28 | 2005 | Stringer/Multi-beam or Girder | 163 ft | 55,350 | Good |
| EB I-235 over 28th Street No. 000000000042411 | Polk County | 2.6 Miles E of Jct. Ia 28 | 2004 | Stringer/Multi-beam or Girder | 162 ft | 55,350 | Good |
| WB I-235 over 28th Street No. 000000000042421 | Polk County | 2.6 Mi. E of Jct. Ia 28 | 2005 | Stringer/Multi-beam or Girder | 162 ft | 55,350 | Good |
| WB I-235 over 73rd St& Ia Interstate R No. 000000000042260 | Polk County | 3.2 MI E of W JCT I 80/35 | 1968 | Stringer/Multi-beam or Girder | 337 ft | 54,350 | Good |
| I 35 NB I 80 EB over US 6 No. 000000000041300 | Polk County | At Junction With US 6 | 1958 | Stringer/Multi-beam or Girder | 174 ft | 51,050 | Fair |
| EB I-235 over 73rd St& Ia Interstate R No. 000000000042250 | Polk County | 3.2 MI E of W JCT I 80/35 | 1968 | Stringer/Multi-beam or Girder | 327 ft | 50,400 | Good |
| SB I-35 WB I-80 over Walnut Creek No. 000000000041290 | Polk County | 0.3 Mi. W of Jct. US 6 | 1958 | Stringer/Multi-beam or Girder | 414 ft | 49,750 | Fair |
| I 35 SB I 80 WB over US 6 No. 000000000041310 | Polk County | At Jct. US 6 | 1958 | Stringer/Multi-beam or Girder | 174 ft | 49,750 | Fair |
| NB I-35 EB I-80 over Des Moines Rvr Bike Path No. 000000000041500 | Polk County | 1.6 Mi. E of Jct. Ia 28 | 1958 | Stringer/Multi-beam or Girder | 712 ft | 48,850 | Good |
| NB I-35 EB I-80 over Drainage Ditch No. 000000000041530 | Polk County | 0.8 Mi. W of Jct. Ia 415 | 1958 | Stringer/Multi-beam or Girder | 112 ft | 48,850 | Fair |
| I-80 EB & I-35 NB over NW 72nd ST No. 000000000041420 | Polk County | 1.0 Mile W of Jct. Ia 28 | 1958 | Stringer/Multi-beam or Girder | 127 ft | 48,250 | Fair |
| EB I-235 over 22nd ST No. 000000000042200 | Polk County | 2.1 MI E of W JCT I-35/80 | 1968 | Stringer/Multi-beam or Girder | 183 ft | 48,250 | Fair |
| WB I-235 over 22nd ST No. 000000000042210 | Polk County | 2.1 MI E of W JCT I-35/80 | 1968 | Stringer/Multi-beam or Girder | 183 ft | 48,250 | Fair |
| SB I-35 WB I-80 over Des Moines River & Path No. 000000000041510 | Polk County | 1.6 Mi. E of Jct. Ia 28 | 1958 | Stringer/Multi-beam or Girder | 712 ft | 48,000 | Good |
| SB I-35 WB I-80 over Drainage Ditch No. 000000000041540 | Polk County | 0.8 Mi. W of Jct. Ia 415 | 1958 | Stringer/Multi-beam or Girder | 112 ft | 48,000 | Fair |
| I-80 WB & I-35 SB over NW 72nd ST No. 000000000041430 | Polk County | 1.0 Mile West JCT Ia 28 | 1958 | Stringer/Multi-beam or Girder | 125 ft | 47,050 | Fair |
| I 35 NB over Over UP RR No. 000000000609160 | Polk County | 1.1 Miles N of N JCT I-80 | 2002 | Stringer/Multi-beam or Girder | 282 ft | 46,900 | Good |
| SB I-35 over Over Upp RR No. 000000000609165 | Polk County | 1.1 Miles N of N JCT I-80 | 2002 | Stringer/Multi-beam or Girder | 282 ft | 46,900 | Fair |
| EB I-80 over Over NE 29th ST No. 000000000041950 | Polk County | 0.7 Mi. E of E Jct. I-35 | 1959 | Stringer/Multi-beam or Girder | 285 ft | 45,300 | Fair |
| EB I-80 over Fourmile Creek No. 000000000041970 | Polk County | 1.4 Miles E of E JCT I-35 | 1959 | Stringer/Multi-beam or Girder | 191 ft | 45,300 | Fair |
| NB I-35 EB I-80 over Saylor Creek No. 000000000041550 | Polk County | 0.5 Mi. W of Jct. 415 | 1958 | Stringer/Multi-beam or Girder | 170 ft | 44,550 | Fair |
| NB I-35 EB I-80 over 6th Ave No. 000000000041570 | Polk County | 0.4 Mi. W of Jct. Ia 415 | 1958 | Stringer/Multi-beam or Girder | 141 ft | 44,550 | Fair |
| WB I-80 over NE 29th ST No. 000000000041960 | Polk County | 0.7 Mi. E of E Jct. I-35 | 1959 | Stringer/Multi-beam or Girder | 312 ft | 44,500 | Fair |
| WB I-80 over Fourmile Creek No. 000000000041980 | Polk County | 1.4 Mile E of E JCT I-35 | 1959 | Stringer/Multi-beam or Girder | 191 ft | 44,500 | Fair |
| SB I-35 WB I-80 over Saylor Creek No. 000000000041560 | Polk County | 0.5 Mi. W of Jct. Ia 415 | 1958 | Stringer/Multi-beam or Girder | 170 ft | 43,750 | Fair |
| SB I-35 WB I-80 over 6th Ave No. 000000000041580 | Polk County | 0.4 Mi. W of Jct. Ia 415 | 1958 | Stringer/Multi-beam or Girder | 141 ft | 43,750 | Fair |
| EB I-235 over Keo Way No. 000000000042511 | Polk County | 3.6 Mi. E of Jct. Ia 28 | 2006 | Stringer/Multi-beam or Girder | 315 ft | 42,800 | Good |
| NB I-35 EB I-80 over Drainage No. 000000000041651 | Polk County | 0.2 Mi. E Jct. US 69 | 2000 | Stringer/Multi-beam or Girder | 198 ft | 42,300 | Good |
| NB I-35 EB I-80 over UP RR No. 000000000041671 | Polk County | 0.5 Mi. E of Jct. US 69 | 2000 | Stringer/Multi-beam or Girder | 298 ft | 42,300 | Good |
| SB I-35 WB I-80 over US 69 No. 000000000041641 | Polk County | At Junction With US 69 | 2000 | Stringer/Multi-beam or Girder | 246 ft | 41,550 | Good |
| SB I-35 WB I-80 over Drainage No. 000000000041661 | Polk County | 0.2 Mi. E Jct. US 69 | 2000 | Stringer/Multi-beam or Girder | 198 ft | 41,550 | Fair |
| SB I-35 WB I-80 over UP RR No. 000000000041681 | Polk County | 0.5 Mi. E of Jct. US 69 | 2000 | Stringer/Multi-beam or Girder | 298 ft | 41,550 | Good |
| I 35 NB I 80 EB over US 69 No. 000000000041631 | Polk County | At Junction With US 69 | 2000 | Stringer/Multi-beam or Girder | 246 ft | 41,250 | Good |
| SB I-380 over Cc RR & Ash Pit No. 000000000604220 | Linn County | 2.9 Mi. S of Jct. 100 | 1979 | Stringer/Multi-beam or Girder | 1,763 ft | 41,000 | Fair |
| NB I 35 EB I 80 over Ia 415 No. 000000000041591 | Polk County | At Jct. of Ia 415 | 1999 | Stringer/Multi-beam or Girder | 256 ft | 40,250 | Good |
| NB I-35 EB I-80 over NE 3rd ST No. 000000000041611 | Polk County | 0.3 Mi. E of Jct. Ia 415 | 2000 | Stringer/Multi-beam or Girder | 123 ft | 40,250 | Good |
| NB I-35/EB I-80 over Ia 28 No. 000000000041441 | Polk County | At Jct. Ia 28 | 1999 | Stringer/Multi-beam or Girder | 266 ft | 40,100 | Good |
| I 80 WB I 35 SB over Ia 415 No. 000000000041601 | Polk County | At Jct. of Ia 415 | 1999 | Stringer/Multi-beam or Girder | 256 ft | 39,550 | Good |
| SB I-35 WB I-80 over NE 3rd ST No. 000000000041621 | Polk County | 0.3 Mi. E of Jct. 415 | 2000 | Stringer/Multi-beam or Girder | 123 ft | 39,550 | Good |
| SB I-35 WB I-80 over Ia 28 No. 000000000041451 | Polk County | At the Jct. Ia 28 | 1999 | Stringer/Multi-beam or Girder | 266 ft | 39,100 | Fair |
| NB I-380 over Cc RR No. 000000000604230 | Linn County | 2.6 Mi. S of Jct. 100 | 1980 | Stringer/Multi-beam or Girder | 589 ft | 38,800 | Fair |
| SB I-380 over Cc RR No. 000000000604240 | Linn County | 2.6 Mi. S of JCT.100 | 1980 | Stringer/Multi-beam or Girder | 446 ft | 38,800 | Fair |
| NB I-380 over H Ave NE No. 000000000604250 | Linn County | 2.3 Mi. S of Jct. 100 | 1980 | Stringer/Multi-beam or Girder | 171 ft | 38,800 | Fair |
| SB I-380 over H Ave NE No. 000000000604260 | Linn County | 2.3 Mi.S.Of JCT.100 | 1980 | Stringer/Multi-beam or Girder | 171 ft | 38,800 | Good |
| NB I 380 over J Ave NE No. 000000000604270 | Linn County | 2.0 Mi. S of Jct. Ia #100 | 1980 | Stringer/Multi-beam or Girder | 232 ft | 38,800 | Fair |
| SB I-380 over J Ave NE No. 000000000604280 | Linn County | 2.0 Mi. S of Jct. Ia #100 | 1980 | Stringer/Multi-beam or Girder | 232 ft | 38,800 | Fair |
| EB I-235 over NB US 69/E 15th ST No. 000000000042891 | Polk County | At Junction With US 69 | 2004 | Stringer/Multi-beam or Girder | 183 ft | 38,550 | Good |
| WB I-235 over 15th Street No. 000000000601356 | Polk County | At Junction With US 69 | 2005 | Stringer/Multi-beam or Girder | 179 ft | 38,550 | Good |
| I-80 over Mississippi River & RR No. 000000000047720 | Scott County | In Leclaire | 1967 | Stringer/Multi-beam or Girder | 3,488 ft | 38,100 | Fair |
| I 35 SB over RR Ep True Creek No. 000000000041221 | Polk County | 1.2 Mi. S of S Jct. I-80 | 2013 | Stringer/Multi-beam or Girder | 447 ft | 37,550 | Good |
| I 235 EB over Hull Ave No. 000000000043021 | Polk County | 0.4 Mile S of JCT US 6 | 2005 | Stringer/Multi-beam or Girder | 228 ft | 37,300 | Good |
| I 235 WB over Hull Avenue No. 000000000043031 | Polk County | 0.4 Mile S of JCT US 6 | 2005 | Stringer/Multi-beam or Girder | 228 ft | 37,300 | Good |
| EB I-235 over Union Pacific RR No. 000000000042951 | Polk County | 0.2 Mile E of JCT Ia 163 | 2004 | Stringer/Multi-beam or Girder | 373 ft | 36,950 | Good |
| WB I-235 over Ia 163/UNIV Ave/Ramp No. 000000000609260 | Polk County | 0.6 MI E of JCT US 69 NB | 2004 | Stringer/Multi-beam or Girder | 1,046 ft | 36,950 | Good |
| WB I-235 over Keo Way No. 000000000042521 | Polk County | 3.6 Miles E of Jct. Ia 28 | 2005 | Stringer/Multi-beam or Girder | 319 ft | 36,850 | Good |
| I 35 NB over UP RR Ep True Creek No. 000000000041211 | Polk County | 1.2 Mi. S of S Jct. I-80 | 2014 | Stringer/Multi-beam or Girder | 447 ft | 36,600 | Good |
| EB I-235 over NE 46 Ave No. 000000000043051 | Polk County | 0.5 Mile S of I-35/80 JCT | 1967 | Stringer/Multi-beam or Girder | 154 ft | 36,450 | Fair |
| WB I-235 over NE 46th Ave No. 000000000043061 | Polk County | 0.5 MI S of E JCT I-35/80 | 1967 | Stringer/Multi-beam or Girder | 154 ft | 36,450 | Fair |
| I-235 WB over Easton Blvd No. 000000000608570 | Polk County | 0.4 Mi. E of Jct. Ia #163 | 2006 | Stringer/Multi-beam or Girder | 175 ft | 36,300 | Good |
| I 235 EB over Easton Blvd No. 000000000609395 | Polk County | 0.4 Mi. E of Jct. Ia #163 | 2004 | Stringer/Multi-beam or Girder | 171 ft | 36,300 | Good |
| NB I35 EB I80 over NS RR & Ia 141 No. 000000000041350 | Polk County | At the Jct. Ia 141 | 1958 | Stringer/Multi-beam or Girder | 252 ft | 36,100 | Fair |
| NB I-380 over Coldstream Ave NE No. 000000000604290 | Linn County | 1.5 Mi. S of Jct. Ia 100 | 1980 | Stringer/Multi-beam or Girder | 176 ft | 35,400 | Fair |
| SB I-380 over Coldstream Ave NE No. 000000000604300 | Linn County | 1.5 Mi. S of Jct. Ia 100 | 1980 | Stringer/Multi-beam or Girder | 176 ft | 35,400 | Fair |
| SB I35 WB I80 over NS RR & Ia 141 No. 000000000041360 | Polk County | At Jct. Iowa 141 | 1958 | Stringer/Multi-beam or Girder | 254 ft | 35,200 | Fair |
| WB I-235 over UP RR No. 000000000042961 | Polk County | 0.2 Mile E of JCT Ia 163 | 2004 | Stringer/Multi-beam or Girder | 377 ft | 35,150 | Good |
| EB I-235 over E 21st Street No. 000000000042971 | Polk County | 0.3 Mi. E of Jct. Ia #163 | 2005 | Stringer/Multi-beam or Girder | 94 ft | 35,150 | Good |
| WB I-235 over East 21st Street No. 000000000608760 | Polk County | 0.9 Mile E of JCT US 69 | 2001 | Stringer/Multi-beam or Girder | 93 ft | 35,150 | Good |
| I 380 NB over 15th & 16th Av SW No. 000000000607060 | Linn County | 2.5 Mi. N of Jct. US 30 | 1975 | Stringer/Multi-beam or Girder | 487 ft | 34,450 | Fair |
| I 380 SB over 15th & 16th Ave SW No. 000000000607070 | Linn County | 2.5 Mi. N of Jct. US 30 | 1975 | Stringer/Multi-beam or Girder | 487 ft | 34,450 | Fair |
| SB I-380 over City Streets UP &ccp RR No. 000000000603692 | Linn County | 0.6 Mi. N of Jct. Ia 922 | 1979 | Stringer/Multi-beam or Girder | 1,470 ft | 34,350 | Fair |
| EB I-235 over Guthrie Ave No. 000000000043001 | Polk County | 1.2 Miles E of JCT Ia 163 | 2006 | Stringer/Multi-beam or Girder | 178 ft | 33,900 | Fair |
| WB I-235 over Guthrie Ave No. 000000000043011 | Polk County | 1.2 Miles E of JCT Ia 163 | 2006 | Stringer/Multi-beam or Girder | 178 ft | 33,900 | Good |
| US 69 over Bn RR Scott Ave& Mlk Pkw No. 000000000040510 | Polk County | 0.7 Mile S of JCT I-235 | 1937 | Stringer/Multi-beam or Girder | 1,407 ft | 33,600 | Fair |
| I 80 EB over Iowa River No. 000000000032091 | Johnson County | 3.0 Mi. W of Jct. Ia 1 | 1960 | Stringer/Multi-beam or Girder | 432 ft | 32,900 | Good |
| NB I-380 over 42nd ST No. 000000000604700 | Linn County | 0.5 Mi. S. of Jct. 100 | 1981 | Stringer/Multi-beam or Girder | 191 ft | 32,850 | Fair |
| NB I-380 over Cc RR & Ash Pit No. 000000000604210 | Linn County | 2.9 Mi. S of Jct. Ia 100 | 1979 | Stringer/Multi-beam or Girder | 1,763 ft | 32,300 | Fair |
| I 80 WB over Iowa River No. 000000000032101 | Johnson County | 3.0 Mi. W of Jct. Ia 1 | 1960 | Stringer/Multi-beam or Girder | 432 ft | 32,050 | Good |
| NB I-380 over City Sts Ccp& UP RR No. 000000000603690 | Linn County | 0.6 Mi. N of Jct. Ia 922 | 1979 | Stringer/Multi-beam or Girder | 1,479 ft | 31,850 | Fair |
| NB I-380 over Cic RR & City ST No. 000000000600565 | Linn County | 0.7 Mi. N of Jct. US 30 | 1975 | Stringer/Multi-beam or Girder | 567 ft | 31,400 | Fair |
| SB I-380 over Cic RR & City ST No. 000000000600570 | Linn County | 0.7 Mi. N of Jct. 30 | 1975 | Stringer/Multi-beam or Girder | 567 ft | 31,400 | Fair |
| NB I-380 over Over UP RR No. 000000000603010 | Linn County | 1.0 Mi. N of Jct. US 30 | 1974 | Stringer/Multi-beam or Girder | 297 ft | 31,400 | Fair |
| SB I-380 over Over UP RR No. 000000000603012 | Linn County | 1.0 Mi. N of Jct. US 30 | 1974 | Stringer/Multi-beam or Girder | 297 ft | 31,400 | Good |
| US 69 over Des Moines River No. 000000000040500 | Polk County | 1.4 Mi. S of Jct. I-235 | 1936 | Stringer/Multi-beam or Girder | 758 ft | 31,100 | Fair |
| EB I-80 over Over US 6 & Iais RR No. 000000000032011 | Johnson County | 0.9 Mi. E of Jct. I-380 | 1995 | Stringer/Multi-beam or Girder | 572 ft | 31,000 | Fair |
| I 80 WB over Over US 6 & Iais RR No. 000000000032021 | Johnson County | 0.6 Mi. W of JCT SR W60 | 1992 | Stringer/Multi-beam or Girder | 564 ft | 31,000 | Fair |
| EB I-80 over Cic Railway No. 000000000032060 | Johnson County | 3.0 Mi. E of Jct. I-380 | 1963 | Stringer/Multi-beam or Girder | 174 ft | 30,600 | Fair |
| WB I-80 over Cic Railway No. 000000000032070 | Johnson County | 3.0 Mi. E of Jct. I-380 | 1963 | Stringer/Multi-beam or Girder | 174 ft | 30,600 | Fair |
| NB I-380 over Cic RR & 8th Ave No. 000000000607080 | Linn County | 0.8 Mi. S of Jct. Ia #922 | 1973 | Stringer/Multi-beam or Girder | 638 ft | 30,200 | Fair |
| EB I-235 over University Ave No. 000000000042921 | Polk County | 0.6 MI E of JCT US 69 NB | 2005 | Stringer/Multi-beam or Girder | 1,019 ft | 29,900 | Good |
| SB I-35 over Raccoon River No. 000000000041151 | Polk County | 0.6 Mi. N of Jct. Iowa #5 | 2003 | Stringer/Multi-beam or Girder | 656 ft | 29,550 | Fair |
| I 35 NB over Four Mile Creek No. 000000000041811 | Polk County | 3.1 Miles N of JCT Ia 160 | 2018 | Stringer/Multi-beam or Girder | 197 ft | 29,150 | Good |
| US 218 over Quarry Lake & Wyth RD No. 000000000605800 | Black Hawk County | 2.5 Mi. S of Jct. Ia. #57 | 1989 | Stringer/Multi-beam or Girder | 756 ft | 29,000 | Fair |
| W University over I-35 & I-80 No. 000000000012491 | Polk County | At Junction I-80 & I-35 | 1984 | Stringer/Multi-beam or Girder | 235 ft | 28,914 | Good |
| I 380 SB over Ia 922 No. 000000000603688 | Linn County | At Jct. Bus. U.S. 151 | 1979 | Stringer/Multi-beam or Girder | 2,296 ft | 28,800 | Fair |
| NB I-35 over Raccoon River No. 000000000041141 | Polk County | 0.6 Mi. N of Jct. Iowa #5 | 2002 | Stringer/Multi-beam or Girder | 656 ft | 28,800 | Good |
| NB I 380 over 33rd Ave No. 000000000603020 | Linn County | 1.3 Mi. N of Jct. U.S. 30 | 1974 | Stringer/Multi-beam or Girder | 171 ft | 28,600 | Fair |
| SB I-380 over 33rd Ave No. 000000000603022 | Linn County | 1.3 Mi. N of Jct. U.S. 30 | 1974 | Stringer/Multi-beam or Girder | 171 ft | 28,600 | Fair |
| I-74 (wb) over Duck Creek and Bike Path No. 000000000047330 | Scott County | 3.1 Mi. E of Jct. I-80 | 1971 | Stringer/Multi-beam or Girder | 320 ft | 28,450 | Fair |
| I-74 (eb) over Duck Creek and Bike Path No. 000000000047340 | Scott County | 3.1 Mi. E of JCT I-80 | 1971 | Stringer/Multi-beam or Girder | 320 ft | 28,450 | Fair |
| I 35 SB over Four Mile Creek No. 000000000041821 | Polk County | 3.1 Mi. N of Jct. Ia 160 | 2020 | Stringer/Multi-beam or Girder | 197 ft | 28,400 | Good |
| I 74 & US 6 WB over US 67 Dme RR City Sts No. 000000000604071 | Scott County | 4.3 Mi. S of Jct. I-80 | 2019 | Stringer/Multi-beam or Girder | 2,280 ft | 28,250 | Good |
| I 74 EB US 6 EB over US 67 RR City Streets No. 000000000604081 | Scott County | 4.3 Mi. S of Jct. I-80 | 2021 | Stringer/Multi-beam or Girder | 2,272 ft | 28,250 | Good |
| SB I-380 over 42nd ST No. 000000000604705 | Linn County | 0.5 Mi. S of Jct. 100 | 1981 | Stringer/Multi-beam or Girder | 191 ft | 28,050 | Fair |
| I 380 NB over W-60 & Cric RR No. 000000000600460 | Johnson County | 7.4 Mi. N of Jct. I-80 | 1971 | Stringer/Multi-beam or Girder | 380 ft | 27,900 | Fair |
| I 380 SB over W-60 & Cic RR No. 000000000600470 | Johnson County | 7.4 Mi. N of Jct. I-80 | 1972 | Stringer/Multi-beam or Girder | 381 ft | 27,900 | Fair |
| US 6 over Iowa River No. 000000000031570 | Johnson County | 0.2 Mi. E of E Jct. Ia 1 | 1957 | Stringer/Multi-beam or Girder | 324 ft | 27,600 | Fair |
| EB I-80 over Over UP RR No. 000000000022410 | Dallas County | 2.3 Mi. W of W Jct. I-35 | 1966 | Stringer/Multi-beam or Girder | 164 ft | 27,550 | Fair |
| NB I-380 over Iowa River No. 000000000600480 | Johnson County | 7.9 Mi. N of JCT I-80 | 1972 | Stringer/Multi-beam or Girder | 429 ft | 27,200 | Fair |
| SB I-380 over Iowa River No. 000000000600490 | Johnson County | 7.9 Mi. N of Jct. I-80 | 1972 | Stringer/Multi-beam or Girder | 429 ft | 27,200 | Fair |
| US 77 over I 29 & Ia 12 NB No. 000000000700200 | Woodbury County | At Jct. US I-29 | 2012 | Stringer/Multi-beam or Girder | 155 ft | 26,900 | Good |
| WB I-80 over Over UP RR No. 000000000022420 | Dallas County | 2.3 Mi. W of W JCT I-35 | 1966 | Stringer/Multi-beam or Girder | 164 ft | 26,850 | Fair |
| I 380 NB over Iais RR No. 000000000600391 | Johnson County | 0.7 Mi. N of Jct. I-80 | 2021 | Stringer/Multi-beam or Girder | 227 ft | 26,550 | Good |
| I 380 SB over Iais RR No. 000000000600401 | Johnson County | I-80 / I-380 Interchange | 2022 | Stringer/Multi-beam or Girder | 227 ft | 26,550 | Good |
| I 380 NB over US 6 No. 000000000600411 | Johnson County | I-80 / I-380 Interchange | 2021 | Stringer/Multi-beam or Girder | 287 ft | 26,550 | Good |
| I 380 SB over US 6 No. 000000000600421 | Johnson County | I-80 / I-380 Interchange | 2022 | Stringer/Multi-beam or Girder | 287 ft | 26,550 | Good |
| I-80 WB over Imrl RR No. 000000000047560 | Scott County | 0.4 Mi. E of Jct. US 61 | 1963 | Stringer/Multi-beam or Girder | 150 ft | 26,250 | Fair |
| I 35 NB over E 1st Street No. 000000000041791 | Polk County | 2.0 Miles N of JCT Ia 160 | 2019 | Stringer/Multi-beam or Girder | 237 ft | 26,200 | Good |
| I 380 NB over Ia 922 No. 000000000603685 | Linn County | At Jct. Bus. U.S. 151 | 1979 | Stringer/Multi-beam or Girder | 2,172 ft | 26,000 | Fair |
| I 380 SB over Cic RR & 8th Ave No. 000000000607090 | Linn County | 0.8 Mi. S of Jct. Ia #922 | 1975 | Stringer/Multi-beam or Girder | 638 ft | 26,000 | Fair |
| NB I-380 over 5th Ave SW No. 000000000607100 | Linn County | 0.3 Mi. S of Jct. Ia 922 | 1975 | Stringer/Multi-beam or Girder | 267 ft | 26,000 | Fair |
| SB I-380 over 5th Ave SW No. 000000000607110 | Linn County | 0.3 Mi. S of Ia 922 | 1975 | Stringer/Multi-beam or Girder | 269 ft | 26,000 | Fair |
| Ia 28 over Walnut Creek No. 000000000003826 | Polk County | 0.4 Mi. S of Jct. I-235 | 1969 | Stringer/Multi-beam or Girder | 246 ft | 25,900 | Good |
| EB I-80 over Ia 965/CORAL Ridge Ave No. 000000000032030 | Johnson County | 1.6 Mi. E of Jct. I-380 | 1963 | Stringer/Multi-beam or Girder | 227 ft | 25,850 | Fair |
| I 35 SB over E 1st Street No. 000000000041801 | Polk County | 2.0 Mi. N of Jct. Ia 160 | 2020 | Stringer/Multi-beam or Girder | 237 ft | 25,550 | Good |
| EB I-235 over UP RR No. 000000000043071 | Polk County | 1.3 Miles E of JCT US 6 | 2006 | Stringer/Multi-beam or Girder | 226 ft | 25,550 | Good |
| WB I-235 over UP RR No. 000000000043081 | Polk County | 1.3 Miles E of JCT US 6 | 2006 | Stringer/Multi-beam or Girder | 223 ft | 25,550 | Good |
| I 35 SB over Iais RR No. 000000000041171 | Polk County | 0.2 Mi. S of Grand Ave. | 2013 | Stringer/Multi-beam or Girder | 197 ft | 25,300 | Good |
| I 35 SB over Grand Ave No. 000000000041191 | Polk County | At Jct. of Grand Ave. | 2013 | Stringer/Multi-beam or Girder | 287 ft | 25,300 | Fair |
| I 80 WB over Ia 965/CORAL Ridge Ave No. 000000000032040 | Johnson County | 1.6 Mi. E of Jct. I-380 | 1963 | Stringer/Multi-beam or Girder | 227 ft | 25,150 | Fair |
| I-74 WB over Middle RD No. 000000000047310 | Scott County | 1.0 Mi. E of Jct. US 6 | 1971 | Stringer/Multi-beam or Girder | 188 ft | 25,050 | Fair |
| I-74 EB over Middle RD No. 000000000047320 | Scott County | 1.0 Mi. E of Jct. US 6 | 1971 | Stringer/Multi-beam or Girder | 188 ft | 25,050 | Fair |
| I 35 NB over Iais RR No. 000000000041161 | Polk County | 0.2 Mi. S of Grand Ave. | 2014 | Stringer/Multi-beam or Girder | 197 ft | 24,650 | Good |
| I 35 NB over Grand Ave No. 000000000041181 | Polk County | At Jct. of Grand Ave. | 2014 | Stringer/Multi-beam or Girder | 287 ft | 24,650 | Good |
| US 69 over Ioway Creek No. 000000000048680 | Story County | 0.6 Mi. N of Jct. US 30 | 1924 | Stringer/Multi-beam or Girder | 212 ft | 24,600 | Good |
| NW 86th ST over Walnut Creek No. 000000000002411 | Polk County | 079253502 | 1970 | Stringer/Multi-beam or Girder | 166 ft | 24,581 | Fair |
| EB I-80 over Sugar Creek No. 000000000022380 | Dallas County | 7.9 Mi. E of Jct. US 169 | 1966 | Stringer/Multi-beam or Girder | 204 ft | 24,500 | Fair |
| I 80 EB over US 65 No. 000000000042021 | Polk County | At Junction With US 65 | 2012 | Stringer/Multi-beam or Girder | 316 ft | 24,500 | Fair |
| WB I-235 over I-35 No. 000000000041920 | Polk County | At West Junction I-35-80 | 1966 | Stringer/Multi-beam or Girder | 262 ft | 24,250 | Fair |
| I-280 over Dme RR No. 000000000600700 | Scott County | 9.1 Mi. S of Jct. I-80 | 1971 | Stringer/Multi-beam or Girder | 204 ft | 24,200 | Good |
| NB I-35 over Bike Path No. 000000000049120 | Story County | 1.1 Miles N of JCT Ia 210 | 1964 | Stringer/Multi-beam or Girder | 145 ft | 24,150 | Fair |
| I 35 NB over South Skunk River No. 000000000049181 | Story County | 2.6 Miles S of JCT US 30 | 2018 | Stringer/Multi-beam or Girder | 378 ft | 24,150 | Good |
| WB I-80 over Sugar Creek No. 000000000022390 | Dallas County | 7.9 Mi. E of Jct. US 169 | 1966 | Stringer/Multi-beam or Girder | 204 ft | 24,050 | Fair |
| I 80 WB over US 65 No. 000000000042031 | Polk County | At East JCT With US 65 | 2014 | Stringer/Multi-beam or Girder | 316 ft | 23,900 | Good |
| I 29 SB over I-80 & I-29 Interchange No. 000000000700050 | Pottawattamie County | I-80 and Ramps | 2014 | Stringer/Multi-beam or Girder | 2,174 ft | 23,900 | Good |
| NB I-35 over NE 36th ST No. 000000000041831 | Polk County | 2.1 Miles N of JCT SR F34 | 2011 | Stringer/Multi-beam or Girder | 255 ft | 23,750 | Good |
| SB I-35 over NE 36th ST No. 000000000041841 | Polk County | 2.1 Miles N of JCT SR F34 | 2011 | Stringer/Multi-beam or Girder | 255 ft | 23,750 | Good |
| Ia 25 over Iowa 25 No. 000000000012990 | Adair County | At Jct. I-80 | 1958 | Stringer/Multi-beam or Girder | 214 ft | 23,600 | Fair |
| Ia 163 over Four Mile Creek No. 000000000040941 | Polk County | 1.7 Mi. W of Jct. U.S. 65 | 1975 | Stringer/Multi-beam or Girder | 256 ft | 23,300 | Fair |
| Ia 28 over I-235 No. 000000000042291 | Polk County | At Jct. I-235 | 2004 | Stringer/Multi-beam or Girder | 224 ft | 23,300 | Good |
| SB I-35 over Bike Path No. 000000000049130 | Story County | 1.1 Mi. N of Jct. Ia 210 | 1964 | Stringer/Multi-beam or Girder | 145 ft | 23,300 | Fair |
| I 35 SB over South Skunk River No. 000000000049191 | Story County | 2.6 Mi. S of Jct. U.S. 30 | 2017 | Stringer/Multi-beam or Girder | 378 ft | 23,300 | Good |
| US 218 over Broadway ST No. 000000000605940 | Black Hawk County | 1.3 MI S of Jct. Ia 57 | 1989 | Stringer/Multi-beam or Girder | 350 ft | 23,100 | Fair |
| US 218 over Airport Blvd No. 000000000605945 | Black Hawk County | 1.1 Miles S of Jct. Ia 27 | 1989 | Stringer/Multi-beam or Girder | 241 ft | 23,100 | Fair |
| Ia 160 over I-35 No. 000000000041781 | Polk County | At Junction Interstate 35 | 1986 | Stringer/Multi-beam or Girder | 253 ft | 22,700 | Fair |
| EB I-235 over I 35 West JCT No. 000000000041910 | Polk County | At West JCT I-35 & I-80 | 1966 | Stringer/Multi-beam or Girder | 258 ft | 22,500 | Fair |
| US 6 over Des Moines River No. 000000000040400 | Polk County | 3.6 Miles W of JCT I-235 | 1933 | Stringer/Multi-beam or Girder | 604 ft | 22,400 | Fair |
| US 61 & 151 over Peosta Chl & City ST No. 000000000606260 | Dubuque County | 0.2 Mi. N. of E 11th St. | 1991 | Stringer/Multi-beam or Girder | 4,030 ft | 22,300 | Fair |
| I 380 NB over US 30 No. 000000000607000 | Linn County | At the Jct. U.S. 30 | 1975 | Stringer/Multi-beam or Girder | 267 ft | 21,900 | Fair |
| US 6 over I-235 No. 000000000504520 | Polk County | At Jct. I-235 | 2003 | Stringer/Multi-beam or Girder | 302 ft | 21,800 | Good |
| I 235 EB over WB I-235 & WB I-80 No. 000000000609865 | Polk County | At East Junction I-35/80 | 2007 | Stringer/Multi-beam or Girder | 218 ft | 21,600 | Good |
| EB I-80 over Imrl RR No. 000000000047550 | Scott County | 0.4 Mi. E of Jct. US 61 | 1963 | Stringer/Multi-beam or Girder | 150 ft | 21,600 | Fair |
| US 218 over Cedar Rvr & Trail No. 000000000605925 | Black Hawk County | 2.9 Mi. S Jct. Ia #57 | 1989 | Stringer/Multi-beam or Girder | 828 ft | 21,500 | Fair |
| I 380 SB over US 30 No. 000000000607010 | Linn County | At Jct. of U.S. 30 | 1975 | Stringer/Multi-beam or Girder | 267 ft | 21,400 | Fair |
| E 53rd ST over Goose Creek No. 000000000003130 | Scott County | 000000000 | 1978 | Stringer/Multi-beam or Girder | 93 ft | 21,325 | Fair |
| I 29 SB over Pierce ST Frontage RD No. 000000000700330 | Woodbury County | 0.4 MI S. of Jct. US 77 | 2018 | Stringer/Multi-beam or Girder | 192 ft | 21,100 | Fair |
| I 235 WB over NB I-35 & EB I-80 No. 000000000609810 | Polk County | At East Jct. I80/I35 | 2007 | Stringer/Multi-beam or Girder | 218 ft | 21,050 | Good |
| WB I-235 over WB I-235 & WB I-80 No. 000000000609815 | Polk County | At East Junction I-35/80 | 2007 | Stringer/Multi-beam or Girder | 218 ft | 21,050 | Good |
| EB I-235 over NB I-35 & EB I-80 No. 000000000609860 | Polk County | At East Junction I-35/80 | 2007 | Stringer/Multi-beam or Girder | 218 ft | 21,050 | Good |
| 7th Ave over Indian Creek No. 000000000033521 | Linn County | 083070100 | 1994 | Stringer/Multi-beam or Girder | 206 ft | 20,679 | Fair |
| Ia 12 over BNSF Rvr Sts & Ia 376 No. 000000000052830 | Woodbury County | 0.1 MI W of Jct. Ia 376 | 1936 | Stringer/Multi-beam or Girder | 3,970 ft | 20,600 | Poor |
| I 380 NB over Ianr RR Tx ST Cedar Rvr No. 000000000605275 | Black Hawk County | 0.4 Mi. S of Jct. 218 | 1983 | Stringer/Multi-beam or Girder | 1,527 ft | 19,950 | Fair |
| WB I-80 over Abandon RR No. 000000000018520 | Cedar County | 0.5 Mi. E of Jct. SR X30 | 1962 | Stringer/Multi-beam or Girder | 174 ft | 19,500 | Fair |
| I 74 WB over US 6 (spruce Hills) No. 000000000047350 | Scott County | At Jct. US 6 | 1971 | Stringer/Multi-beam or Girder | 219 ft | 19,450 | Fair |
| I 80 WB US 6 WB over South Expressway No. 000000000044651 | Pottawattamie County | At Jct. 192 | 2017 | Stringer/Multi-beam or Girder | 292 ft | 19,400 | Good |
| I 80 WB US 6 WB over Indian Creek No. 000000000044671 | Pottawattamie County | 0.7 Mi. E of 24th ST | 2017 | Stringer/Multi-beam or Girder | 257 ft | 19,400 | Good |
| I 80 US 6 EB over Indian Creek No. 000000000044681 | Pottawattamie County | 0.7 Mi. E. of 24th ST | 2018 | Stringer/Multi-beam or Girder | 257 ft | 19,400 | Good |
| I 80 US 6 EB over South Expressway No. 000000000700665 | Pottawattamie County | I-80 EB over Ia 92 | 2019 | Stringer/Multi-beam or Girder | 292 ft | 19,400 | Good |
| EB I-80 over South Raccoon River No. 000000000022300 | Dallas County | 1.5 Mi. E of Jct. US 169 | 1966 | Stringer/Multi-beam or Girder | 408 ft | 19,100 | Fair |
| EB I-80 over North Raccoon River No. 000000000022330 | Dallas County | 2.3 Mi. E. of Jct. US 169 | 1966 | Stringer/Multi-beam or Girder | 523 ft | 19,100 | Fair |
| I 80 WB US 6 WB over I29 RR Langdon Blvd No. 000000000700385 | Pottawattamie County | 4.4 Mi. E of NE Line | 2017 | Stringer/Multi-beam or Girder | 3,358 ft | 19,100 | Good |
| I 80 EB Ia 38 SB over Sugar Creek No. 000000000018651 | Cedar County | 1.5 Mi. W. of Jct. Ia 38 | 2024 | Stringer/Multi-beam or Girder | 267 ft | 19,000 | Good |
| I 29 SB over Bacon Creek No. 000000000053761 | Woodbury County | 3.0 Miles North of US 75 | 2014 | Stringer/Multi-beam or Girder | 592 ft | 18,900 | Fair |
| I 29 NB over Bacon Creek No. 000000000700300 | Woodbury County | 3.0 Miles North of US 75 | 2016 | Stringer/Multi-beam or Girder | 592 ft | 18,900 | Fair |
| WB I-80 over South Raccoon River No. 000000000022310 | Dallas County | 1.5 Mi. E of Jct. US 169 | 1966 | Stringer/Multi-beam or Girder | 408 ft | 18,750 | Fair |
| WB I-80 over North Raccoon River No. 000000000022340 | Dallas County | 2.3 Mi. E of Jct. 169 | 1966 | Stringer/Multi-beam or Girder | 523 ft | 18,750 | Fair |
| I 80 WB Ia 38 NB over Sugar Creek No. 000000000018661 | Cedar County | 1.5 Mi. W. of Jct. Ia 38 | 2024 | Stringer/Multi-beam or Girder | 267 ft | 18,650 | Good |
| NB US 61 over Dme RR No. 000000000604640 | Scott County | 0.8 Mi. N of JCT I-80 | 1981 | Stringer/Multi-beam or Girder | 344 ft | 18,650 | Fair |
| EB I-80 over Cedar River No. 000000000018611 | Cedar County | 1.0 Mi. W of W Jct. Ia 38 | 2009 | Stringer/Multi-beam or Girder | 1,188 ft | 18,600 | Good |
| Edgewood RD over Ia 100 No. 000000000700455 | Linn County | Edgewood Road over Ia 100 | 2016 | Stringer/Multi-beam or Girder | 129 ft | 18,581 | Good |
| Ia 28 over South Middle Creek No. 000000000051061 | Warren County | 0.6 Mi. S of Jct. Ia 5 | 1984 | Stringer/Multi-beam or Girder | 93 ft | 18,500 | Good |
| W 19th ST over I-235 No. 000000000042491 | Polk County | 3.3 Miles E of JCT Ia 28 | 2003 | Stringer/Multi-beam or Girder | 223 ft | 18,478 | Good |
| NB I-35 over Over UP RR No. 000000000049250 | Story County | 1.5 Miles N of JCT US 30 | 1966 | Stringer/Multi-beam or Girder | 166 ft | 18,450 | Fair |
| 50th St-St Farm over I-235 No. 000000000012511 | Polk County | 0.3 Mi. E of W Jct. I-235 | 2000 | Stringer/Multi-beam or Girder | 341 ft | 18,366 | Good |
Counties with the most
| Pottawattamie County | 393 |
| Polk County | 329 |
| Black Hawk County | 262 |
| Woodbury County | 259 |
| Jasper County | 241 |
| Linn County | 209 |
| Adair County | 201 |
| Plymouth County | 190 |
| Sioux County | 190 |
| Crawford County | 177 |
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