Fair-condition bridges in Iowa
9,964 of Iowa's 23,716 bridges (42.0%) are rated fair.The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.Nationally, 49.6% of bridges carry this rating.
- Fair bridges
- 9,964
- 42.0% of state total
- Average age
- 54.1 yrs
- Posted with load limits
- 1,707
- Closed
- 10
Busiest fair-condition bridges
Top 300 by daily traffic · 18,355,055 total daily crossings| Bridge | County | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|---|
| I-235 over Drainage Ditch No. 000000000606140 | Polk County | 0.4 Mile East of Iowa 28 | 1966 | Culvert | 47 ft | 118,600 | Fair |
| I-235 & 17th ST over Blue Creek No. 000000000042240 | Polk County | 1.1 Miles W of JCT Ia 28 | 1968 | Culvert | 24 ft | 113,200 | Fair |
| I-35 & I-80 over N Walnut Creek No. 000000000041400 | Polk County | 1.1 Miles E of JCT Ia 141 | 1958 | Culvert | 27 ft | 81,600 | Fair |
| EB I-235 over Walnut Creek No. 000000000042270 | Polk County | 3.4 Mi. E of W Jct. 35/80 | 1968 | Girder and Floorbeam System | 336 ft | 58,050 | Fair |
| WB I-235 over Walnut Creek No. 000000000042280 | Polk County | 3.4 MI E of W JCT 35/80 | 1968 | Girder and Floorbeam System | 336 ft | 58,050 | Fair |
| 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 |
| I-480 & US 6 over Missouri River & RR No. 000000000045670 | Pottawattamie County | Over Missouri River | 1966 | Girder and Floorbeam System | 1,687 ft | 53,700 | Fair |
| EB I-235 over Cummins Parkway No. 000000000042300 | Polk County | 0.2 Mile E of JCT Ia 28 | 1967 | Slab | 231 ft | 51,400 | Fair |
| WB I-235 over Cummins Parkway No. 000000000042310 | Polk County | 0.2 Mile E of JCT Ia 28 | 1967 | Slab | 231 ft | 51,400 | Fair |
| 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 |
| 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 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-35 over Ballard Creek No. 000000000049150 | Story County | 1.9 Miles N of JCT Ia 210 | 1964 | Culvert | 44 ft | 48,300 | Fair |
| I-35 over Walnut Creek No. 000000000049170 | Story County | 4.2 Miles N of JCT Ia 210 | 1964 | Culvert | 51 ft | 48,300 | 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 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 |
| 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 |
| 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-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 |
| I-80 over Stream No. 000000000018530 | Cedar County | 0.7 Mi. E of Jct. SR X30 | 1960 | Culvert | 38 ft | 39,700 | Fair |
| I-80 over Stream No. 000000000018540 | Cedar County | 1.2 Mi. E of Jct. SR X30 | 1960 | Culvert | 23 ft | 39,700 | Fair |
| I-80 over Middle Wapsinonoc Creek No. 000000000018560 | Cedar County | 1.97 Mi. W of S.R. X40 | 1960 | Culvert | 52 ft | 39,700 | Fair |
| I-80 over Mud Creek No. 000000000042070 | Polk County | 2.3 Miles E of JCT US 6 | 1959 | Culvert | 52 ft | 39,400 | Fair |
| 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 |
| 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 |
| I-80 over Mississippi River & RR No. 000000000047720 | Scott County | In Leclaire | 1967 | Stringer/Multi-beam or Girder | 3,488 ft | 38,100 | Fair |
| 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 |
| 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 |
| I-80 over Drainage Ditch No. 000000000018680 | Cedar County | 1.0 Mi. E of E Jct. Ia 38 | 1959 | Culvert | 39 ft | 36,000 | Fair |
| I-80 over Little Elkhorn Creek No. 000000000018700 | Cedar County | 2.9 Mi. E of E Jct. Ia 38 | 1959 | Culvert | 52 ft | 36,000 | Fair |
| I-80 over Drainage Ditch No. 000000000018720 | Cedar County | 0.7 Mi. W of Jct. SR Y26 | 1960 | Culvert | 25 ft | 36,000 | 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 |
| I-80 over Drainage Ditch No. 000000000047650 | Scott County | 3.9 Mi. E of Jct. I-74 | 1963 | Culvert | 33 ft | 34,600 | Fair |
| I-80 over Stream No. 000000000047690 | Scott County | 2.7 Mi. W of Jct. US 67 | 1963 | Culvert | 25 ft | 34,600 | Fair |
| US 77 over Missouri River & RD No. 000000000052811 | Woodbury County | In Sioux City | 1981 | Arch - Thru | 1,502 ft | 34,600 | Fair |
| 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 |
| US 20 over N Branch Catfish Creek No. 000000000023860 | Dubuque County | 1.7 Mi. E of Jct. Ia 32 | 1939 | Culvert | 38 ft | 33,600 | Fair |
| 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 over Drainage Ditch No. 000000000030990 | Jasper County | 3.5 Miles E of JCT Ia 117 | 1959 | Culvert | 34 ft | 33,400 | Fair |
| I 80 over Stream No. 000000000029920 | Iowa County | 0.7 Mi. E of Jct. US 151 | 1963 | Culvert | 46 ft | 33,000 | Fair |
| I 29 Ia 12 over Drainage-All of Roadway No. 000000000053830 | Woodbury County | 0.1 Mi. S of Jct. US 77 | 1957 | Culvert | 52 ft | 32,900 | Fair |
| 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 |
| 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 |
| I-80 over Drainage Ditch No. 000000000047640 | Scott County | 3.8 Mi. East of Jct. I-74 | 1963 | Culvert | 46 ft | 31,600 | Fair |
| I-80 EB over Missouri River RD & RR No. 000000000045082 | Pottawattamie County | Nebr. State Line | 1972 | Girder and Floorbeam System | 2,468 ft | 31,550 | Fair |
| I-80 over No Name Creek No. 000000000604750 | Iowa County | 2.4 Mi. W of Jct. Ia 149 | 1963 | Culvert | 32 ft | 31,400 | 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 |
| I-80 over Crow Creek No. 000000000047580 | Scott County | 2.6 Mi. E of Jct. US 61 | 1963 | Culvert | 52 ft | 31,400 | Fair |
| 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 |
| I 80 & US 6 over Little Mosquito Creek No. 000000000045250 | Pottawattamie County | 1.6 Mi. W of Jct. U.S. 6 | 1966 | Culvert | 40 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 |
| I-80 over Elk Creek No. 000000000031160 | Jasper County | 4.2 Miles W of JCT Ia 224 | 1961 | Culvert | 39 ft | 30,500 | Fair |
| I-80 over Drainage Ditch No. 000000000031170 | Jasper County | 3.7 Mi. W of Jct. Ia 224 | 1961 | Culvert | 32 ft | 30,500 | Fair |
| I-80 over Stream No. 000000000029840 | Iowa County | 0.4 Miles W of JCT Ia 149 | 1962 | Culvert | 24 ft | 30,300 | 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 |
| I-80 over Old Mans Creek No. 000000000029800 | Iowa County | 4.0 Mi. W of Jct. 149 | 1962 | Culvert | 42 ft | 30,100 | Fair |
| 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 |
| 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 |
| 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 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 |
| US 30 151 & 218 over Creek No. 000000000604200 | Linn County | 0.1 Mi. W of E Jct. 218 | 1975 | Culvert | 27 ft | 28,500 | Fair |
| I-80 over N.Fk. English River No. 000000000046090 | Poweshiek County | 1.9 Mi. E of Jct. Ia 146 | 1963 | Culvert | 33 ft | 28,500 | Fair |
| I-80 over No Fork English River No. 000000000046120 | Poweshiek County | 3.2 Mi. E of JCT Ia 146 | 1963 | Culvert | 25 ft | 28,500 | 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 |
| 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 |
| US 6 over Cow Creek No. 000000000046840 | Scott County | 0.6 Mi. W of Jct. I-74 | 1936 | Culvert | 31 ft | 28,000 | 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 |
| I-80 over Drainage Ditch No. 000000000013280 | Adair County | 1.7 Mi. E of Jct. SR P-28 | 1959 | Culvert | 26 ft | 27,600 | Fair |
| I-80 over Drainage Ditch No. 000000000013300 | Adair County | 0.9 Mi. W of SR P48 | 1959 | Culvert | 40 ft | 27,600 | 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 |
| US 6 over Ralston Creek No. 000000000031580 | Johnson County | 0.3 Mi. E of E Jct. Ia #1 | 1957 | Culvert | 33 ft | 27,600 | Fair |
| I-80 over Drainage Ditch No. 000000000034850 | Madison County | 1.0 Mi. W of Jct. SR P-53 | 1959 | Culvert | 50 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 |
| I 35 over Drainage Ditch No. 000000000604870 | Hamilton County | 0.8 Mile S of JCT Ia 175 | 1966 | Culvert | 24 ft | 27,200 | 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 |
| 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-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 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 |
| I-80 over North River No. 000000000013230 | Adair County | 3.1 Mi. E of Jct. Ia 25 | 1958 | Culvert | 58 ft | 25,900 | Fair |
| I-80 over Plunger Creek No. 000000000013250 | Adair County | 1.1 Mi. W of Jct. SR P28 | 1959 | Culvert | 32 ft | 25,900 | Fair |
| 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 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-80 over Middle River No. 000000000013140 | Adair County | 3.3 Mi. E of SR N-54 | 1958 | Culvert | 51 ft | 24,800 | Fair |
| I-80 over Drainage Ditch No. 000000000013180 | Adair County | 2.7 Mi. W of Jct. Ia 25 | 1958 | Culvert | 32 ft | 24,800 | Fair |
| 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 Lake Overflow No. 000000000600630 | Scott County | 1.1 Mi. W of Jct. US 61 | 1972 | Culvert | 38 ft | 24,200 | Fair |
| I-280 over Mississippi River & Road No. 000000000600690 | Scott County | In Rock Island | 1970 | Arch - Thru | 4,193 ft | 24,200 | Fair |
| 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 |
| 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 over Bedell Creek No. 000000000045610 | Pottawattamie County | 2.9 Mi. E of Jct. US 59 | 1965 | Culvert | 24 ft | 23,800 | Fair |
| Ia 25 over Iowa 25 No. 000000000012990 | Adair County | At Jct. I-80 | 1958 | Stringer/Multi-beam or Girder | 214 ft | 23,600 | Fair |
| I-80 over Stream No. 000000000045650 | Pottawattamie County | 1.6 Mi. E of Jct. SR M-47 | 1965 | Culvert | 40 ft | 23,600 | Fair |
| I-80 over Camp Creek No. 000000000018000 | Cass County | 1.7 Mi. W. of Jct. Ia 173 | 1965 | Culvert | 37 ft | 23,500 | Fair |
| I-80 over Stream No. 000000000013080 | Adair County | 0.8 Mi. W of Jct. SR G-30 | 1958 | Culvert | 28 ft | 23,300 | 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 |
| 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 |
| 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 |
| I-80 over Drainage Ditch No. 000000000018130 | Cass County | 0.3 Mi. E of Jct. SR N-28 | 1959 | Culvert | 23 ft | 23,000 | Fair |
| C Ave NE over Dry Run Creek No. 000000000001541 | Linn County | C77521027 | 1975 | Slab | 174 ft | 23,000 | Fair |
| I 80 over Drainage Ditch No. 000000000045480 | Pottawattamie County | 0.3 Mi. W of SR M-16 | 1966 | Culvert | 24 ft | 23,000 | 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 |
| US 6 over Silver Creek No. 000000000046811 | Scott County | 2.2 Mi. W of Jct. US 61 | 1983 | Slab | 123 ft | 22,700 | Fair |
| I-80 over Stream No. 000000000045640 | Pottawattamie County | 0.3 Mi. E of Jct. SR M47 | 1965 | Culvert | 33 ft | 22,600 | Fair |
| US 30 & 151 over Drainage Ditch No. 000000000607120 | Linn County | 0.3 Mi. E of Jct. I-380 | 1975 | Culvert | 33 ft | 22,500 | 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 |
| I-80 over Stream No. 000000000018050 | Cass County | 0.3 Mi. E of Jct. SR N-16 | 1965 | Culvert | 27 ft | 22,400 | Fair |
| US 151 over Creek No. 000000000607515 | Linn County | 2.5 Mi. S of Jct. Ia 100 | 1960 | Culvert | 24 ft | 22,400 | 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 |
| 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-35 over Calmus Creek No. 000000000019260 | Cerro Gordo County | 0.7 Mi. N of Jct. SR B20 | 1970 | Culvert | 27 ft | 21,400 | 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 35 over Broad Horn Creek No. 000000000051250 | Warren County | 1.0 Mi. N of SR G-64 | 1957 | Culvert | 50 ft | 21,000 | Fair |
| I-35 over Drainage Ditch No. 000000000051270 | Warren County | 5.7 Mi. S of Jct. Ia 92 | 1958 | Culvert | 25 ft | 21,000 | Fair |
| 7th Ave over Indian Creek No. 000000000033521 | Linn County | 083070100 | 1994 | Stringer/Multi-beam or Girder | 206 ft | 20,679 | Fair |
| US 6 over N Walnut Creek&bike Path No. 000000000040390 | Polk County | 1.1 MI W of W JCT Ia 28 | 1969 | Slab | 103 ft | 20,500 | Fair |
| US 6 over Drainage Ditch No. 000000000040395 | Polk County | 0.9 Mile W of W JCT Ia 28 | 1937 | Culvert | 36 ft | 20,500 | Fair |
| US 61 & 151 over Mississippi River Island No. 000000000604440 | Dubuque County | In North Dubuque | 1982 | Arch - Thru | 2,950 ft | 20,400 | Fair |
| I-35 over Goose Creek No. 000000000600240 | Worth County | 3.3 Mi. N County Road 105 | 1972 | Culvert | 29 ft | 20,100 | Fair |
| 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 |
| Middle RD over Duck Creek No. 000000000000660 | Scott County | Bettendorf Ia | 1961 | Slab | 128 ft | 19,700 | Fair |
| 86th ST over N Walnut Creek No. 000000000011460 | Polk County | O62400495 | 1968 | Culvert | 51 ft | 19,687 | 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 |
| 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 |
| Ia 1 over Drainage Ditch No. 000000000031711 | Johnson County | 0.6 Mi. N of Jct. US 218 | 1949 | Culvert | 52 ft | 19,000 | Fair |
| 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 |
| 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 |
| I-35 over Drainage Ditch No. 000000000020200 | Clarke County | 0.7 Mi. S. of JCT.152 | 1957 | Culvert | 35 ft | 18,600 | Fair |
| US 20 US 52 over Drainage Ditch No. 000000000605960 | Dubuque County | 0.8 Mi. E of Jct. SR Y21 | 1957 | Culvert | 24 ft | 18,500 | Fair |
| Ia 906 over Indian Creek No. 000000000604335 | Pottawattamie County | 3.1 Mi. W of I-80 | 1981 | Culvert | 22 ft | 18,500 | Fair |
| 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 |
| Kanesville Bvld over Indian Creek No. 000000000505630 | Pottawattamie County | North Kanesville Crossing | 1980 | Culvert | 53 ft | 18,400 | Fair |
| EB I-80 over West 148th ST South No. 000000000030860 | Jasper County | 1.0 Mile East of SR S27 | 1959 | Stringer/Multi-beam or Girder | 129 ft | 18,350 | Fair |
| EB I-80 over South Skunk River No. 000000000030890 | Jasper County | 2.5 Miles W of JCT Ia 117 | 1960 | Stringer/Multi-beam or Girder | 390 ft | 18,350 | Fair |
| Hamilton Blvd over Perry Creek No. 000000000503280 | Woodbury County | 000000000 | 1971 | Slab | 131 ft | 18,291 | Fair |
| 60th ST over I-80 No. 000000000041901 | Polk County | 0.5 Mi. W of W Jct. I-35 | 1999 | Stringer/Multi-beam or Girder | 270 ft | 18,273 | Fair |
| US 75 over Stream No. 000000000607675 | Plymouth County | 0.1 MI S of Jct. SR C80 | 1999 | Culvert | 27 ft | 18,200 | Fair |
| Ia 149 over Dm River Streets BNSF RR No. 000000000050640 | Wapello County | 0.2 Mi. N of Jct. US 34 | 1964 | Stringer/Multi-beam or Girder | 2,319 ft | 18,200 | Fair |
| WB I-80 over West 148th Street South No. 000000000030870 | Jasper County | 1.0 Mile East of SR S27 | 1959 | Stringer/Multi-beam or Girder | 129 ft | 18,050 | Fair |
| WB I-80 over South Skunk River No. 000000000030900 | Jasper County | 2.5 Mi. W of JCT 117 | 1960 | Stringer/Multi-beam or Girder | 390 ft | 18,050 | Fair |
| EB I-80 over Sugar Creek No. 000000000030910 | Jasper County | 1.0 Miles W of JCT Ia 117 | 1960 | Slab | 101 ft | 18,050 | Fair |
| SB I-35 over Over UP RR No. 000000000049260 | Story County | 1.4 Mi. N of Jct. US 30 | 1966 | Stringer/Multi-beam or Girder | 166 ft | 18,000 | Fair |
| Locust ST over Over I.C.E. RR No. 000000000003051 | Scott County | 000000000 | 1970 | Stringer/Multi-beam or Girder | 150 ft | 17,800 | Fair |
| Locust ST over Jersey RD No. 000000000003055 | Scott County | 000000000 | 1968 | Stringer/Multi-beam or Girder | 132 ft | 17,800 | Fair |
| NB US 61 over Crow Creek No. 000000000604660 | Scott County | 1.6 Mi. N of Jct. I-80 | 1981 | Slab | 123 ft | 17,750 | Fair |
| I-35 over Drainage Ditch No. 000000000602270 | Cerro Gordo County | At the Jct. SR B60 | 1972 | Culvert | 28 ft | 17,700 | Fair |
| US 20 over Miss. River HWY & RR No. 000000000023880 | Dubuque County | In Dubuque | 1943 | Arch - Thru | 5,760 ft | 17,700 | Fair |
| NB I-29 over Big Sioux River No. 000000000053930 | Woodbury County | South Dakota State Line | 1963 | Stringer/Multi-beam or Girder | 560 ft | 17,650 | Fair |
| I-35 over Drainage Ditch No. 000000000602230 | Cerro Gordo County | 1.6 Mi. N of Jct. SR C13 | 1971 | Culvert | 22 ft | 17,600 | Fair |
| I 35 over Drainage Ditch No. 000000000602240 | Cerro Gordo County | 0.5 Mi. S of Jct. SR B65 | 1972 | Culvert | 22 ft | 17,600 | Fair |
| EB I-80 over Indian Creek Overflow No. 000000000030950 | Jasper County | 1.6 Miles E of JCT Ia 117 | 1959 | Stringer/Multi-beam or Girder | 158 ft | 17,550 | Fair |
| EB I-80 over Indian Creek No. 000000000030970 | Jasper County | 2.6 Miles E of JCT Ia 117 | 1960 | Stringer/Multi-beam or Girder | 320 ft | 17,550 | Fair |
| 2nd Ave over Des Moines River No. 000000000004060 | Polk County | 079243500 | 1935 | Stringer/Multi-beam or Girder | 500 ft | 17,517 | Fair |
| I 74 EB over US 6 (spruce Hills) No. 000000000047360 | Scott County | 2.6 Mi. E of Jct. I-80 | 1971 | Stringer/Multi-beam or Girder | 227 ft | 17,500 | Fair |
| I-35 over Tuttle Creek No. 000000000026760 | Hamilton County | 0.2 Mile N of JCT US 20 | 1967 | Culvert | 26 ft | 17,400 | Fair |
| US 30 & 67 over Mill Creek No. 000000000020841 | Clinton County | 0.2 Mi. E of W Jct. US 67 | 2000 | Tee Beam | 164 ft | 17,300 | Fair |
| Ia 141 over Iais RR No. 000000000041370 | Polk County | 0.2 Mile N of JCT I-80 | 1958 | Stringer/Multi-beam or Girder | 187 ft | 17,300 | Fair |
| Ia 461 over Goose Creek No. 000000000046950 | Scott County | 1.3 Mi. N of Jct. US 6 | 1951 | Stringer/Multi-beam or Girder | 48 ft | 17,300 | Fair |
| EB I-80 over CO RD (Z-30) No. 000000000047670 | Scott County | 3.5 Mi. W of Jct. US 67 | 1963 | Stringer/Multi-beam or Girder | 154 ft | 17,300 | Fair |
| WB I-80 over Indian Creek Overflow No. 000000000030960 | Jasper County | 1.6 Miles E of JCT Ia 117 | 1959 | Stringer/Multi-beam or Girder | 158 ft | 17,250 | Fair |
| WB I-80 over Indian Creek No. 000000000030980 | Jasper County | 2.6 Miles E of JCT Ia 117 | 1960 | Stringer/Multi-beam or Girder | 320 ft | 17,250 | Fair |
| I-35 over Willow Creek No. 000000000019220 | Cerro Gordo County | 0.2 Miles S of N Jct. 18 | 1971 | Culvert | 28 ft | 17,200 | Fair |
| I 29 NB over Floyd River No. 000000000700305 | Woodbury County | 3.5 Mi. N of N Jct. US 75 | 2016 | Stringer/Multi-beam or Girder | 653 ft | 17,200 | Fair |
| EB I-80 over Cherry Creek No. 000000000031050 | Jasper County | 1.2 Mi. W of Jct. Ia 14 | 1962 | Stringer/Multi-beam or Girder | 158 ft | 17,000 | Fair |
| EB I-80 over Over Iais RR No. 000000000031070 | Jasper County | 0.4 Miles W of JCT Ia 14 | 1962 | Stringer/Multi-beam or Girder | 137 ft | 17,000 | Fair |
| I-35 over Drainage Ditch No. 000000000602490 | Franklin County | 1.1 Mi. S of SR C13 | 1972 | Culvert | 38 ft | 16,900 | Fair |
| WB I-80 over CO RD (Z-30) No. 000000000047680 | Scott County | 3.5 Mi. W of Jct. US 67 | 1963 | Stringer/Multi-beam or Girder | 154 ft | 16,850 | Fair |
| US 61 over US 34 No. 000000000602870 | Des Moines County | At Jct. U.S. 34 | 1973 | Stringer/Multi-beam or Girder | 256 ft | 16,700 | Fair |
| EB I-80 over Prairie Creek No. 000000000031010 | Jasper County | 4.3 Miles E of JCT Ia 117 | 1961 | Slab | 180 ft | 16,700 | Fair |
| WB I-80 over Prairie Creek No. 000000000031020 | Jasper County | 4.3 Mi. E of Jct. Ia 117 | 1961 | Slab | 180 ft | 16,700 | Fair |
| WB I-80 over Cherry Creek No. 000000000031060 | Jasper County | 1.2 Mi. W of Jct. Ia 14 | 1962 | Stringer/Multi-beam or Girder | 158 ft | 16,700 | Fair |
| WB I-80 over Over Iais RR No. 000000000031080 | Jasper County | 0.4 Miles West of JCT 14 | 1962 | Stringer/Multi-beam or Girder | 137 ft | 16,700 | Fair |
| I 29 Ia 12 NB over Pierce ST Frontage RD No. 000000000700335 | Woodbury County | 0.4 Mi. S of Jct. US 77 | 2017 | Stringer/Multi-beam or Girder | 192 ft | 16,700 | Fair |
| I 380 SB over Elk Run Creek & RD No. 000000000605265 | Black Hawk County | 1.9 Mi. S of S JCT US 218 | 1983 | Stringer/Multi-beam or Girder | 345 ft | 16,600 | Fair |
| I 29 SB over Perry Creek Conduit No. 000000000700340 | Woodbury County | I-29 over Perry Creek | 2019 | Stringer/Multi-beam or Girder | 89 ft | 16,450 | Fair |
| WB US 30 over South Skunk River No. 000000000048740 | Story County | 1.2 Mi. W of Jct. I-35 | 1963 | Girder and Floorbeam System | 325 ft | 16,300 | Fair |
| Univ Ave over Des Moines River No. 000000000003770 | Polk County | 078240300 | 1920 | Arch - Deck | 849 ft | 16,294 | Fair |
| I 80 EB over W38 (black Hawk Ave) No. 000000000031930 | Johnson County | 5.5 Mi. E of U.S. 151 | 1964 | Stringer/Multi-beam or Girder | 133 ft | 16,250 | Fair |
| SB US 61 over Dme RR No. 000000000604645 | Scott County | 0.8 Mi. N of JCT I-80 | 1981 | Stringer/Multi-beam or Girder | 345 ft | 16,000 | Fair |
| NB US 61 over 210th ST No. 000000000604650 | Scott County | 1.1 Mi. N of Jct. I-80 | 1981 | Stringer/Multi-beam or Girder | 264 ft | 16,000 | Fair |
| WB I-80 over W38 (black Hawk Ave) No. 000000000031940 | Johnson County | At Jct. SR W38. | 1964 | Stringer/Multi-beam or Girder | 133 ft | 15,950 | Fair |
| I 35 SB over US 30 No. 000000000049220 | Story County | At Junction With US 30 | 1964 | Stringer/Multi-beam or Girder | 235 ft | 15,950 | Fair |
| I 80 EB over Middle RD No. 000000000047620 | Scott County | 3.6 Mi. E of Jct. I-74 | 1963 | Stringer/Multi-beam or Girder | 145 ft | 15,800 | Fair |
| NB I-35 over Bear Creek No. 000000000049310 | Story County | 3.3 Miles South of SR E18 | 1967 | Stringer/Multi-beam or Girder | 343 ft | 15,800 | Fair |
| I 129 over Missouri River & I-29 No. 000000000600765 | Woodbury County | 0.5 Mi.W.Of JCT.29 | 1976 | Girder and Floorbeam System | 2,607 ft | 15,800 | Fair |
| US 30 EB over UP RR 21st ST SW Creek No. 000000000604140 | Linn County | 1.9 Mi. W of Jct. 218 | 1980 | Stringer/Multi-beam or Girder | 996 ft | 15,750 | Fair |
| US 30 WB over UP RR 21st ST SW Creek No. 000000000604150 | Linn County | 1.6 Mi.W.Of E.JCT.218 | 1980 | Stringer/Multi-beam or Girder | 996 ft | 15,750 | Fair |
| EB US 30 over Over Cic RR Spur No. 000000000604160 | Linn County | 0.8 Mi. W of E JCT US 218 | 1980 | Stringer/Multi-beam or Girder | 293 ft | 15,750 | Fair |
| WB US 30 over Over Cic RR Spur No. 000000000604170 | Linn County | 0.8 Mi. W of E JCT US 218 | 1980 | Stringer/Multi-beam or Girder | 293 ft | 15,750 | Fair |
| EB US 30 over Over Cic RR No. 000000000604180 | Linn County | 0.8 Mi. W of Jct. I-380 | 1979 | Stringer/Multi-beam or Girder | 399 ft | 15,750 | Fair |
| I 29 Ia 12 SB over Hamilton Blvd No. 000000000053891 | Woodbury County | 0.6 MI N of US 77 | 2019 | Stringer/Multi-beam or Girder | 212 ft | 15,700 | Fair |
| I 29 NB Ia 12 NB over Hamilton Blvd No. 000000000700350 | Woodbury County | 0.6 Mi. N of US 77 | 2016 | Stringer/Multi-beam or Girder | 212 ft | 15,700 | Fair |
| I 80 EB over I 235 No. 000000000042160 | Polk County | 0.2 Mile E of W JCT I-80 | 1966 | Stringer/Multi-beam or Girder | 222 ft | 15,600 | Fair |
| EB US 30 over South Skunk River No. 000000000048730 | Story County | 1.2 Mi. W of Jct. I-35 | 1963 | Girder and Floorbeam System | 325 ft | 15,600 | Fair |
| I 80 & US 6 WB over BNSF RR RD & Creek No. 000000000045200 | Pottawattamie County | 3.2 Mi. W of Jct. US 6 | 1968 | Stringer/Multi-beam or Girder | 608 ft | 15,550 | Fair |
| EB I 80 & US 6 over Franklin Ave No. 000000000045210 | Pottawattamie County | 2.3 Mi. W of Jct. US 6 | 1968 | Stringer/Multi-beam or Girder | 160 ft | 15,550 | Fair |
| WB I 80 & US 6 over Franklin Ave No. 000000000045220 | Pottawattamie County | 2.3 Mi. W of Jct. US 6 | 1968 | Stringer/Multi-beam or Girder | 160 ft | 15,550 | Fair |
| EB I 80 & US 6 over Mcpherson Ave No. 000000000045230 | Pottawattamie County | 1.6 Mi. W of Jct. U.S. 6 | 1967 | Stringer/Multi-beam or Girder | 186 ft | 15,550 | Fair |
| WB I 80 & US 6 over Mcpherson Ave No. 000000000045240 | Pottawattamie County | 1.6 Mi. W of Jct. U.S. 6 | 1967 | Stringer/Multi-beam or Girder | 186 ft | 15,550 | Fair |
| US 30 & 218 over Stream No. 000000000014291 | Benton County | 0.3 Mi. E of Jct. SR W28 | 1991 | Culvert | 23 ft | 15,400 | Fair |
| I 80 WB over Middle RD No. 000000000047630 | Scott County | 3.6 Mi. E of JCT I-74 | 1963 | Stringer/Multi-beam or Girder | 145 ft | 15,400 | Fair |
| I 29 SB over Floyd River No. 000000000053771 | Woodbury County | 3.5 Mi. N of N Jct. US 75 | 2015 | Stringer/Multi-beam or Girder | 655 ft | 15,400 | Fair |
| I 29 NB over Floyd Blvd No. 000000000700310 | Woodbury County | 3.0 Mi. N of Jct. U.S. 75 | 2018 | Stringer/Multi-beam or Girder | 227 ft | 15,400 | Fair |
| I-35 over Stream No. 000000000602505 | Franklin County | 0.1 Mi. N of Jct. Ia 3 | 1974 | Culvert | 21 ft | 15,300 | Fair |
| SB US 61 over 210th ST No. 000000000604655 | Scott County | 1.1 Mi. N of Jct. I-80 | 1981 | Stringer/Multi-beam or Girder | 263 ft | 15,250 | Fair |
| SB I-35 over Bear Creek No. 000000000049320 | Story County | 3.3 Miles S of JCT SR E18 | 1967 | Stringer/Multi-beam or Girder | 343 ft | 15,250 | Fair |
| I 80 EB over I-35 No. 000000000042150 | Polk County | At W Jct. I-35 | 1966 | Stringer/Multi-beam or Girder | 234 ft | 15,200 | Fair |
| WB US 30 over Bike Path & Trail No. 000000000048693 | Story County | 1.1 MI West of JCT US 69 | 1971 | Stringer/Multi-beam or Girder | 219 ft | 15,200 | Fair |
| NB I-35 over Long Dick Creek No. 000000000049350 | Story County | 0.5 Miles N of SR E18 | 1967 | Stringer/Multi-beam or Girder | 195 ft | 15,050 | Fair |
| EB I-80 over Sugar Creek No. 000000000031270 | Jasper County | 0.8 Mi. E of SR T38 | 1962 | Stringer/Multi-beam or Girder | 159 ft | 15,000 | Fair |
| WB US 30 over Cic RR No. 000000000604190 | Linn County | 0.8 Mi. W of Jct. I-380 | 1979 | Stringer/Multi-beam or Girder | 305 ft | 15,000 | Fair |
| I 35 NB over US 30 No. 000000000049210 | Story County | At Junction With US 30 | 1964 | Stringer/Multi-beam or Girder | 235 ft | 15,000 | Fair |
| I 80 EB over US 6/169 No. 000000000022280 | Dallas County | At the Jct. US 6 & US 169 | 1966 | Stringer/Multi-beam or Girder | 215 ft | 14,950 | Fair |
| I 80 WB over US 169 No. 000000000022290 | Dallas County | At Jct. of U.S. 169 | 1966 | Stringer/Multi-beam or Girder | 215 ft | 14,950 | Fair |
| US 218 over Whiskey Run Creek No. 000000000605570 | Washington County | 0.5 Mi. N of Jct. SR G-36 | 1984 | Culvert | 23 ft | 14,900 | Fair |
| US 218 over Stream No. 000000000605585 | Washington County | 1.8 Mi. S 0F JCT Ia 22 | 1984 | Culvert | 29 ft | 14,900 | Fair |
| Ia 9 over Trout Creek No. 000000000052610 | Winneshiek County | 0.2 Mi. W of SR A52 | 1969 | Stringer/Multi-beam or Girder | 204 ft | 14,900 | Fair |
| Locust ST over Over Iais RR No. 000000000003041 | Scott County | 000000000 | 1968 | Stringer/Multi-beam or Girder | 206 ft | 14,859 | Fair |
| EB I-80 over Rock Creek No. 000000000031240 | Jasper County | 3.2 Mi. E of Jct. Ia 224 | 1962 | Stringer/Multi-beam or Girder | 183 ft | 14,850 | Fair |
| SB I-35 over Long Dick Creek No. 000000000049360 | Story County | 0.5 Miles N of SR E18 | 1967 | Stringer/Multi-beam or Girder | 195 ft | 14,850 | Fair |
| EB I-80 over V 52 (h Ave) No. 000000000029770 | Iowa County | Junction I-80 & SR V52 | 1963 | Stringer/Multi-beam or Girder | 124 ft | 14,750 | Fair |
| WB I-80 over Sugar Creek No. 000000000031280 | Jasper County | 0.8 Mi. E of SR T38 | 1962 | Stringer/Multi-beam or Girder | 159 ft | 14,750 | Fair |
| US 30 over Davisons Creek No. 000000000035340 | Marshall County | 1.4 Miles W of JCT Ia 146 | 1954 | Culvert | 52 ft | 14,700 | Fair |
| EB I-80 over Iowa 149 No. 000000000029850 | Iowa County | At Jct. Ia 149 | 1963 | Stringer/Multi-beam or Girder | 222 ft | 14,650 | Fair |
| WB I-80 over Rock Creek No. 000000000031250 | Jasper County | 3.2 Mi. E of Jct. Ia 224 | 1962 | Stringer/Multi-beam or Girder | 183 ft | 14,600 | Fair |
| EB I-80 over CO RD (P-57) No. 000000000022230 | Dallas County | At SR P57 Junction | 1966 | Stringer/Multi-beam or Girder | 145 ft | 14,550 | Fair |
| WB I-80 over CO RD (P-57) No. 000000000022240 | Dallas County | At the Jct. SR P57 | 1966 | Stringer/Multi-beam or Girder | 145 ft | 14,550 | Fair |
| I 80 EB over Ia 224 No. 000000000031190 | Jasper County | At Junction Ia 224 | 1961 | Stringer/Multi-beam or Girder | 128 ft | 14,550 | Fair |
| WB I-80 over V 52 (h Ave) No. 000000000029780 | Iowa County | Junction I-80 & SR V52 | 1963 | Stringer/Multi-beam or Girder | 124 ft | 14,500 | Fair |
| I 80 EB over V38 No. 000000000029720 | Iowa County | At Jct. SR V38 | 1964 | Stringer/Multi-beam or Girder | 129 ft | 14,450 | Fair |
| US 18 over Willow Creek No. 000000000018740 | Cerro Gordo County | 0.3 Mi. W of Jct. I-35 | 1952 | Culvert | 35 ft | 14,400 | Fair |
| Benton ST over Iowa River No. 000000000006251 | Johnson County | 079061500 | 1990 | Stringer/Multi-beam or Girder | 479 ft | 14,383 | Fair |
| Hamiltn at 35th over Perry Creek No. 000000000501240 | Woodbury County | 000000000 | 1970 | Stringer/Multi-beam or Girder | 188 ft | 14,345 | Fair |
| Ia 57 over Cedar River No. 000000000014575 | Black Hawk County | 0.8 Mi. W of Jct. 218 | 1974 | Stringer/Multi-beam or Girder | 898 ft | 14,300 | Fair |
| WB US 20 over Mid Br Catfish Ck Cc RR No. 000000000023850 | Dubuque County | 0.6 Mi. E of NW Arterial | 1961 | Girder and Floorbeam System | 385 ft | 14,300 | Fair |
| WB I-80 over Iowa 149 No. 000000000029860 | Iowa County | At JCT of I-80 & Ia 149 | 1963 | Stringer/Multi-beam or Girder | 222 ft | 14,300 | Fair |
| I 80 WB over Ia 224 No. 000000000031200 | Jasper County | At Junction Ia 224 | 1961 | Stringer/Multi-beam or Girder | 128 ft | 14,300 | Fair |
| I 29 NB over 8th ST No. 000000000053691 | Woodbury County | 2.0 Mi.S.Of Jct. US 20 | 2014 | Stringer/Multi-beam or Girder | 167 ft | 14,300 | Fair |
| I 29 SB over 8th ST No. 000000000053701 | Woodbury County | 2.0 Mi. S of Jct. US 20 | 2015 | Stringer/Multi-beam or Girder | 167 ft | 14,300 | Fair |
| I 29 NB over UP RR No. 000000000053711 | Woodbury County | 1.9 Mi. S. of N. Jct. 75 | 2014 | Stringer/Multi-beam or Girder | 183 ft | 14,300 | Fair |
| I 29 SB over UP RR No. 000000000053721 | Woodbury County | 1.9 Mi. S. of N. Jct. 75 | 2015 | Stringer/Multi-beam or Girder | 183 ft | 14,300 | Fair |
| EB I-80 over 50th Street No. 000000000046100 | Poweshiek County | 2.1 Mi. E of Jct. Ia 146 | 1963 | Slab | 114 ft | 14,250 | Fair |
| I-35 NB over 13th ST No. 000000000049270 | Story County | 1.8 Miles N of JCT US 30 | 1966 | Stringer/Multi-beam or Girder | 162 ft | 14,250 | Fair |
| I 80 WB over V38 No. 000000000029730 | Iowa County | At the Jct. SR V38 | 1964 | Stringer/Multi-beam or Girder | 129 ft | 14,200 | Fair |
| E 53rd ST over Deere Creek No. 000000000503840 | Scott County | 000000000 | 1977 | Culvert | 30 ft | 14,156 | Fair |
| Jordan CR Pkwy over Creek No. 000000000504865 | Dallas County | 000000000 | 2003 | Culvert | 38 ft | 14,127 | Fair |
Counties with the most
| Linn County | 295 | 58% |
| Pottawattamie County | 288 | 52% |
| Black Hawk County | 210 | 43% |
| Polk County | 195 | 36% |
| Johnson County | 186 | 49% |
| Woodbury County | 182 | 40% |
| Buchanan County | 161 | 50% |
| Delaware County | 160 | 54% |
| Story County | 160 | 53% |
| Benton County | 158 | 42% |