Harrison County, Iowa bridges
Harrison County has 222 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 41 (18%) are rated poor. The most common type is stringer/multi-beam or girder (49%).
- Bridges
- 222
- Good
- 27%
- Fair
- 54%
- Poor
- 18%
- 41 bridges
- Average age
- 54.3 yrs
- Posted or closed
- 35
Map of bridges in Harrison County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Harrison County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good27%(61)
Fair54%(120)
Poor18%(41)
When they were built
Busiest
- US 30 over Willow CreekFair10,300 vehicles/day
- US 30 over UPRRGood10,300 vehicles/day
- NB I-29 over Boyer RiverFair10,050 vehicles/day
- SB I-29 over Boyer RiverFair10,050 vehicles/day
- SB I-29 over Over UP RRFair7,750 vehicles/day
Longest
- US 30 over Missouri RiverFair1,983 ft
- Fair
- Fair
- Fair
- Fair
Oldest
- FM & 296th ST over Harris Grove CreekFairBuilt 1900
- 8th Street over Boyer RiverPoorBuilt 1900
- Medford Ave over Willow RiverPoorBuilt 1900
- 242 Trail over Hog CreekFairBuilt 1900
- Jasper Trail over Small CreekPoorBuilt 1900
All bridges in Harrison County
Busiest first · showing 1–200 of 222| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| US 30 over Willow Creek No. 000000000027401 | 0.6 Mi. E of Jct. I-29 | 1972 | Slab | 133 ft | 10,300 | Fair |
| US 30 over UPRR No. 000000000608110 | 0.8 Mi. E of JCT I-29 | 1998 | Stringer/Multi-beam or Girder | 243 ft | 10,300 | Good |
| NB I-29 over Boyer River No. 000000000028060 | 3.0 Mi. S of Jct. U.S. 30 | 1958 | Stringer/Multi-beam or Girder | 414 ft | 10,050 | Fair |
| SB I-29 over Boyer River No. 000000000028070 | 3.0 Mi. S of Jct. US 30 | 1958 | Stringer/Multi-beam or Girder | 414 ft | 10,050 | Fair |
| SB I-29 over Over UP RR No. 000000000028130 | 0.4 Mi. N of Jct. U.S. 30 | 1967 | Stringer/Multi-beam or Girder | 141 ft | 7,750 | Fair |
| NB I-29 over Allen Creek No. 000000000028150 | 1.9 Mi. N of Jct. US 30 | 1967 | Stringer/Multi-beam or Girder | 160 ft | 7,750 | Fair |
| SB I-29 over Allen Creek No. 000000000028160 | 1.9 Mi. N of Jct. US 30 | 1967 | Stringer/Multi-beam or Girder | 161 ft | 7,750 | Fair |
| NB I-29 over UP RR & K-45 No. 000000000028190 | 1.9 Mi. N of SR F-50 | 1967 | Stringer/Multi-beam or Girder | 455 ft | 7,600 | Fair |
| SB I-29 over UP RR & K-45 No. 000000000028200 | 1.9 Mi. N of SR F-50 | 1967 | Stringer/Multi-beam or Girder | 455 ft | 7,600 | Fair |
| NB I-29 over Old Soldier River Ditch No. 000000000028210 | 4.0 Mi. S of Ia 127 | 1967 | Slab | 102 ft | 7,600 | Fair |
| SB I-29 over Old Soldier River Ditch No. 000000000028220 | 4.0 Mi. S of Jct. Ia 127 | 1967 | Slab | 102 ft | 7,600 | Fair |
| NB I-29 over Burcham Creek No. 000000000028240 | 2.7 Mi. S of JCT 127 | 1967 | Slab | 117 ft | 7,600 | Fair |
| SB I-29 over Burcham Creek No. 000000000028250 | 2.8 Mi. S of Jct. 127 | 1967 | Slab | 117 ft | 7,600 | Fair |
| NB I-29 over Burcham Creek No. 000000000028260 | 1.2 Mi. S of Jct. Ia 127 | 1967 | Slab | 92 ft | 7,600 | Fair |
| SB I-29 over Burcham Creek No. 000000000028270 | 1.2 Mi. S of Jct. Ia 127 | 1967 | Slab | 92 ft | 7,600 | Fair |
| I 29 NB over US 30 No. 000000000028100 | At Jct. US 30 | 1967 | Stringer/Multi-beam or Girder | 222 ft | 7,500 | Fair |
| NB I-29 over Drainage Ditch No. 000000000028300 | 1.8 Mi. N of JCT.127 | 1967 | Slab | 92 ft | 7,300 | Fair |
| SB I-29 over Drainage Ditch No. 000000000028310 | 1.8 Mi. N of JCT.127 | 1967 | Slab | 92 ft | 7,300 | Fair |
| NB I-29 over Soldier River No. 000000000028320 | 2.8 Mi. N of Jct. Ia 127 | 1967 | Girder and Floorbeam System | 306 ft | 7,300 | Fair |
| SB I-29 over Soldier River No. 000000000028330 | 2.8 Mi. N of Jct. Ia 127 | 1967 | Girder and Floorbeam System | 306 ft | 7,300 | Fair |
| NB I-29 over Little Sioux River No. 000000000028360 | 0.4 Mi. N of Jct. SR F-20 | 1967 | Girder and Floorbeam System | 588 ft | 7,250 | Fair |
| SB I-29 over Little Sioux River No. 000000000028370 | 0.4 Mi. N of Jct. SR F-20 | 1967 | Girder and Floorbeam System | 588 ft | 7,250 | Fair |
| NB I-29 over Drainage Ditch No. 000000000028380 | 1.6 Mi. N of Jct. SR F-20 | 1966 | Girder and Floorbeam System | 316 ft | 7,250 | Fair |
| SB I-29 over Drainage Ditch No. 000000000028390 | 1.6 Mi. N of Jct. SR F-20 | 1966 | Girder and Floorbeam System | 316 ft | 7,250 | Fair |
| NB I-29 over Over UP RR No. 000000000028120 | 0.4 Mi. N of Jct. U.S. 30 | 1967 | Stringer/Multi-beam or Girder | 141 ft | 7,000 | Good |
| US 30 over Stream No. 000000000027410 | 0.8 Mi. E of Jct. SR F-58 | 1919 | Stringer/Multi-beam or Girder | 43 ft | 6,800 | Fair |
| US 30 over Hog Creek No. 000000000027421 | 2.5 Mi. W of Jct. 127 | 1983 | Slab | 113 ft | 6,800 | Fair |
| US 30 over Allen Creek No. 000000000027370 | 0.9 Mi. W of JCT.29 | 1929 | Slab | 73 ft | 6,500 | Fair |
| SB I-29 over US 30 No. 000000000028110 | At Jct. US 30 | 1967 | Stringer/Multi-beam or Girder | 222 ft | 6,450 | Fair |
| US 30 over Boyer Rvr & Cc RR & Road No. 000000000027431 | 0.3 Mi. E of Ia 127 | 1973 | Stringer/Multi-beam or Girder | 782 ft | 5,900 | Fair |
| US 30 over Natural Creek No. 000000000027440 | 0.4 Mi. E. of S.R. L-34 | 1929 | Culvert | 40 ft | 4,790 | Good |
| US 30 over Six Mile Creek No. 000000000027461 | 0.3 Mi. E of Ia 44 | 1988 | Stringer/Multi-beam or Girder | 167 ft | 4,490 | Fair |
| US 30 over Stream No. 000000000027470 | 3.4 Mi. E of Jct. Ia 44 | 1919 | Slab | 41 ft | 4,490 | Fair |
| US 30 over Old Channel Boyer River No. 000000000027481 | 0.7 Mi. W of SR F32 | 1983 | Slab | 73 ft | 4,490 | Good |
| US 30 over Boyer River No. 000000000027491 | At S Jct. SR F-32 | 2016 | Stringer/Multi-beam or Girder | 283 ft | 4,430 | Good |
| US 30 over Missouri River No. 000000000027321 | At Nebraska State Line | 1991 | Girder and Floorbeam System | 1,983 ft | 4,410 | Fair |
| US 30 over Youngs Ditch No. 000000000027350 | 0.8 Mi. E of SR K-45 | 1953 | Slab | 196 ft | 4,410 | Fair |
| US 30 over Wilson Ditch No. 000000000027361 | 2.1 Mi. W. of I-29 | 2023 | Truss - Deck | 23 ft | 4,410 | Good |
| US 30 over Drainage Ditch No. 000000000027501 | 0.8 Mi. E of Jct. SR F32 | 1983 | Culvert | 29 ft | 3,090 | Fair |
| US 30 over Powley Drain Ditch No. 000000000027511 | 2.2 Mi. E of SR F32 | 1983 | Slab | 73 ft | 3,090 | Fair |
| US 30 over Stream No. 000000000027521 | 2.4 Mi. E of SR F-32 | 2023 | Stringer/Multi-beam or Girder | 73 ft | 3,090 | Good |
| US 30 over Stream No. 000000000027531 | 3.6 Miles East of SR F-32 | 2012 | Stringer/Multi-beam or Girder | 126 ft | 3,090 | Fair |
| US 30 over Boyer River No. 000000000027560 | 3.7 Mi. W of Jct. Ia 37 | 1968 | Stringer/Multi-beam or Girder | 285 ft | 3,090 | Fair |
| US 30 over Mill Creek No. 000000000027571 | 7.2 Mi. E. of Co. Rd. F32 | 2019 | Slab | 121 ft | 3,090 | Good |
| US 30 over Stream No. 000000000605810 | 1.5 Mi. W of Ia 37 | 1924 | Culvert | 26 ft | 3,090 | Good |
| Ia 191 over Spring Creek No. 000000000027991 | 0.8 Mi. S of Co. Rd. F58 | 2014 | Slab | 141 ft | 1,650 | Good |
| L20 Loess Hills over Small Natural Stream No. 000000000027830 | 078440306 | 1926 | Culvert | 21 ft | 1,534 | Fair |
| L20 Loess Hills over Small Natural Stream No. 000000000027820 | 078441010 | 1927 | Culvert | 21 ft | 1,451 | Fair |
| L20 Loess Hills over Willow Creek No. 000000000027841 | 079433016 | 1993 | Stringer/Multi-beam or Girder | 406 ft | 1,414 | Good |
| Ia 37 over Boyer River No. 000000000027600 | 0.1 Mi. W of US 30 | 1958 | Stringer/Multi-beam or Girder | 284 ft | 1,340 | Fair |
| Ia 127 over Willow Creek No. 000000000027761 | 4.7 Mi. W of Jct. US 30 | 1991 | Stringer/Multi-beam or Girder | 271 ft | 1,230 | Fair |
| Bus Brown DR over Drainage No. 000000000178622 | East of Lincolnway | 2017 | Stringer/Multi-beam or Girder | 31 ft | 1,225 | Good |
| Bus Brown DR over Unnamed Creek No. 000000000505350 | East of Lincolnway | 2015 | Stringer/Multi-beam or Girder | 31 ft | 1,225 | Fair |
| Ia 127 over Spooner Ditch No. 000000000027701 | 1.9 Mi. W of Jct. Ia 183 | 1990 | Culvert | 21 ft | 1,180 | Good |
| L20 Loess Hills over Drainage Ditch No. 000000000027791 | 078442710 | 1976 | Slab | 73 ft | 1,065 | Fair |
| L20 Loess Hills over Boyer River No. 000000000027801 | 078442210 | 1991 | Stringer/Multi-beam or Girder | 294 ft | 1,065 | Fair |
| L20 Loess Hills over Drainage Ditch No. 000000000027811 | 078442204 | 1991 | Slab | 74 ft | 1,065 | Good |
| Ia 127 & 183 over Steer Creek No. 000000000027720 | 0.5 Mi. E of Ia 183 | 1968 | Slab | 134 ft | 920 | Fair |
| Ia 183 over Ditch No. 000000000027931 | 3.3 Mi. S of SR F-20 | 2002 | Culvert | 25 ft | 870 | Good |
| Ia 183 over Natural Creek No. 000000000027941 | 2.4 Mi. S of SR F-20 | 1996 | Culvert | 25 ft | 870 | Good |
| Huron ST over Willow River No. 000000000008311 | 000000000 | 1996 | Slab | 133 ft | 810 | Fair |
| Ia 44 over Six Mile Creek No. 000000000027621 | 0.9 Mi. E of Jct. US 30 | 1978 | Culvert | 31 ft | 800 | Fair |
| Ia 44 over Branch Six Mile Creek No. 000000000027641 | 2.6 Mi. E of Jct. US 30 | 1978 | Culvert | 25 ft | 800 | Fair |
| Ia 44 over Branch Six Mile Creek No. 000000000027651 | 4.1 Mi. E of US 30 | 1978 | Culvert | 23 ft | 800 | Fair |
| Ia 44 over Branch Six Mile Creek No. 000000000027661 | 4.3 Mi. E of Jct. US 30 | 1978 | Culvert | 21 ft | 800 | Good |
| Ia 44 over Pigeon Creek No. 000000000027681 | 7.0 Mi. E of US 30 | 1978 | Stringer/Multi-beam or Girder | 201 ft | 800 | Good |
| Ia 44 over Spring Creek No. 000000000027691 | 8.9 Mi. E of US 30 | 1978 | Culvert | 29 ft | 800 | Fair |
| FM Overton Ave over Harris Grove Creek No. 000000000177530 | 078430308 | 1963 | Stringer/Multi-beam or Girder | 45 ft | 788 | Fair |
| FM 335th ST over Boyer River No. 000000000177730 | 078442301 | 1959 | Stringer/Multi-beam or Girder | 252 ft | 788 | Fair |
| L20 Loess Hills over Natural Creek No. 000000000027870 | 079442408 | 1926 | Culvert | 21 ft | 767 | Fair |
| L20 Loess Hills over Bellville Ditch No. 000000000027890 | 079441402 | 1926 | Stringer/Multi-beam or Girder | 25 ft | 767 | Fair |
| L20 Loess Hills over Allen Creek No. 000000000027901 | 079441104 | 1990 | Stringer/Multi-beam or Girder | 151 ft | 767 | Good |
| Ia 183 over Cobb Creek No. 000000000027951 | 0.5 Mi. N SR F20 | 2017 | Slab | 151 ft | 730 | Good |
| Ia 127 over I-29 No. 000000000028280 | At the JCT of I-29 | 1967 | Stringer/Multi-beam or Girder | 218 ft | 700 | Fair |
| F 50 over I-29 No. 000000000028000 | At Jct. SR F-50 | 1967 | Stringer/Multi-beam or Girder | 327 ft | 608 | Fair |
| Ia 183 over Soldier River No. 000000000027961 | 1.5 Mi. N of SR F-20 | 2014 | Stringer/Multi-beam or Girder | 267 ft | 580 | Good |
| Ia 183 over Drainage Ditch No. 000000000027971 | 1.9 Mi. N of N JCT SR F20 | 2008 | Culvert | 25 ft | 580 | Good |
| 296th ST over Boyer River No. 000000000177701 | 078441203 | 1974 | Stringer/Multi-beam or Girder | 253 ft | 577 | Fair |
| Austin Ave over Old Soldier Ditch No. 000000000178301 | 079441802 | 1984 | Culvert | 24 ft | 568 | Fair |
| FM & 194th ST over S Picayune Creek No. 000000000178501 | 080412005 | 1979 | Culvert | 25 ft | 518 | Fair |
| Fm/Austin Ave over Soldier River No. 000000000360790 | 080451206 | 1957 | Stringer/Multi-beam or Girder | 223 ft | 497 | Fair |
| Ia 127 over Allen Creek No. 000000000027730 | 8.5 Mi. W of US 30 | 1968 | Stringer/Multi-beam or Girder | 184 ft | 460 | Good |
| Ia 127 over Little Bloomer Creek No. 000000000606100 | 2.7 Mi. E of E JCT Ia 183 | 1940 | Culvert | 24 ft | 460 | Fair |
| F20L Easton Trail over Willow Creek No. 000000000178591 | 080420607 | 2020 | Stringer/Multi-beam or Girder | 217 ft | 437 | Fair |
| 260th ST over Hog Creek No. 000000000178180 | 079432205 | 1950 | Culvert | 29 ft | 417 | Fair |
| 260th ST over Willow Creek No. 000000000178190 | 079433007 | 1966 | Stringer/Multi-beam or Girder | 230 ft | 417 | Fair |
| FM & Austin Ave over Little Sioux River No. 000000000028021 | 081452304 | 1987 | Stringer/Multi-beam or Girder | 291 ft | 396 | Good |
| FM & Austin Ave over Monona-Harrison Ditch No. 000000000028031 | 081451404 | 2004 | Stringer/Multi-beam or Girder | 217 ft | 396 | Good |
| FM & 296th ST over Harris Grove Creek No. 000000000177580 | 078431105 | 1900 | Culvert | 29 ft | 379 | Fair |
| FM 270th ST over Willow Creek No. 000000000178201 | 079433101 | 1990 | Slab | 128 ft | 379 | Fair |
| F50 270th ST over Allen Creek No. 000000000178331 | 079443501 | 2021 | Stringer/Multi-beam or Girder | 93 ft | 379 | Good |
| FM Easton Trail over Allen Creek No. 000000000179660 | 081433403 | 1969 | Culvert | 40 ft | 335 | Poor |
| Easton Trail over Elk Creek No. 000000000365275 | 080430205 | 2008 | Culvert | 27 ft | 335 | Good |
| SR F20 over I-29 No. 000000000028010 | At Jct. of SR F20 | 1966 | Stringer/Multi-beam or Girder | 219 ft | 319 | Fair |
| Jackson ST over Soldier River No. 000000000009511 | 000000000 | 2004 | Stringer/Multi-beam or Girder | 217 ft | 313 | Good |
| FM 296th ST over Pigeon Creek No. 000000000177280 | 078421101 | 1962 | Stringer/Multi-beam or Girder | 182 ft | 270 | Fair |
| 296th ST over Potato Creek No. 000000000365270 | 078420903 | 2007 | Culvert | 23 ft | 270 | Good |
| Loc Munice Ave over Small Creek No. 000000000177750 | 078442408 | 1956 | Channel Beam | 42 ft | 240 | Fair |
| FM 110 ST over Boyer River No. 000000000179136 | 081410303 | 1984 | Stringer/Multi-beam or Girder | 226 ft | 199 | Fair |
| Local RD over I-29 No. 000000000028140 | 1.0 Mi. N of Jct. US 30 | 1966 | Stringer/Multi-beam or Girder | 227 ft | 139 | Good |
| 305th ST over Allen Creek No. 000000000177711 | 078441701 | 1974 | Girder and Floorbeam System | 66 ft | 139 | Fair |
| Racine Trail over Small Stream No. 000000000178581 | 000000000 | 2009 | Culvert | 27 ft | 139 | Good |
| FM Laredo Ave over Allen Creek No. 000000000178810 | 080431706 | 1942 | Stringer/Multi-beam or Girder | 102 ft | 139 | Poor |
| FM Toledo Ave over Mill Creek No. 000000000179221 | 081412206 | 1977 | Slab | 128 ft | 139 | Fair |
| L23 Laredo Ave over Steer Creek No. 000000000366610 | .75 MI S of 147th on L23 | 1942 | Culvert | 21 ft | 139 | Poor |
| 8th Street over Boyer River No. 000000000178090 | 000000000 | 1900 | Truss - Thru | 146 ft | 123 | Poor |
| F58 296th ST over Mosquito Creek No. 000000000176942 | 025500525 | 2016 | Stringer/Multi-beam or Girder | 179 ft | 121 | Good |
| FM - 335th ST over Mosquito Creek No. 000000000177110 | 078413203 | 1920 | Truss - Thru | 241 ft | 120 | Poor |
| FM Tabor Ave over Small Stream No. 000000000179140 | 081410406 | 1956 | Channel Beam | 24 ft | 110 | Poor |
| FM-335th ST over Potato Creek No. 000000000177442 | 078423101 | 1993 | Stringer/Multi-beam or Girder | 179 ft | 100 | Good |
| Loc Canal ST over Willow River No. 000000000177720 | 078442103 | 1916 | Truss - Thru | 110 ft | 100 | Poor |
| FM & Panora Ave over Willow River No. 000000000179440 | 081422905 | 1972 | Stringer/Multi-beam or Girder | 70 ft | 100 | Fair |
| FM & 194th ST over Willow River No. 000000000360850 | 080432303 | 1968 | Stringer/Multi-beam or Girder | 83 ft | 100 | Fair |
| Medford Ave over Willow River No. 000000000178170 | 079432102 | 1900 | Truss - Thru | 191 ft | 89 | Poor |
| Loc 128 Trail over Boyer River No. 000000000179185 | 081411705 | 1940 | Truss - Thru | 162 ft | 89 | Poor |
| 235th ST over I-29 No. 000000000028230 | 3.0 Mi. S of Jct. Ia 127 | 1967 | Stringer/Multi-beam or Girder | 229 ft | 79 | Good |
| FM-335th ST over Pigeon Creek No. 000000000177461 | 078423401 | 1991 | Stringer/Multi-beam or Girder | 142 ft | 79 | Good |
| 180th ST over Picayune Creek No. 000000000178601 | 080421305 | 1981 | Slab | 128 ft | 79 | Good |
| 180th Street over Boyer River No. 000000000178611 | 080421203 | 2002 | Stringer/Multi-beam or Girder | 246 ft | 79 | Good |
| 198th ST over Small Creek No. 000000000178670 | 080422211 | 1950 | Stringer/Multi-beam or Girder | 84 ft | 79 | Poor |
| FM & 155th ST over Mud Creek No. 000000000179510 | 081423605 | 1940 | Truss - Thru | 92 ft | 79 | Poor |
| FM - 335th ST over Small Creek No. 000000000177150 | 078413503 | 1952 | Stringer/Multi-beam or Girder | 45 ft | 71 | Poor |
| 242 Trail over Hog Creek No. 000000000178140 | 079431405 | 1900 | Culvert | 21 ft | 71 | Fair |
| Loc Sawyer TR over Picayune Creek No. 000000000178431 | 080410704 | 1977 | Stringer/Multi-beam or Girder | 155 ft | 71 | Fair |
| FM & Racine Trl over Small Creek No. 000000000179500 | 081423603 | 1947 | Culvert | 21 ft | 71 | Fair |
| Laredo Ave over Stowe Creek No. 000000000179521 | 081430800 | 2022 | Stringer/Multi-beam or Girder | 60 ft | 71 | Good |
| Seward Ave over Pigeon Creek No. 000000000177451 | 078423304 | 1979 | Stringer/Multi-beam or Girder | 83 ft | 60 | Fair |
| 280th ST over Willow River No. 000000000177651 | 078440401 | 2021 | Slab | 110 ft | 60 | Good |
| Vienna Ave over Pigeon Creek No. 000000000177810 | 079410102 | 1967 | Truss - Thru | 92 ft | 60 | Poor |
| 242 Trail over Willow Creek No. 000000000178151 | 079431503 | 1986 | Stringer/Multi-beam or Girder | 167 ft | 60 | Good |
| Fm-Toledo Ave over East Picayune Creek No. 000000000178391 | 080410304 | 1977 | Slab | 116 ft | 60 | Good |
| FM & Toledo Ave over Picayune Creek No. 000000000178401 | 080410304 | 1977 | Slab | 91 ft | 60 | Fair |
| FM Gordon Ave over Soldier River No. 000000000178981 | 080440404 | 1974 | Stringer/Multi-beam or Girder | 255 ft | 60 | Fair |
| E Kelly Ave over Soldier River No. 000000000179001 | 080440706 | 2013 | Stringer/Multi-beam or Girder | 204 ft | 60 | Good |
| Waldorf Avenue over Creek No. 000000000365210 | 078411604 | 1950 | Culvert | 25 ft | 60 | Fair |
| FM - 335th ST over Keg Creek No. 000000000177140 | 078413501 | 1955 | Channel Beam | 69 ft | 50 | Fair |
| Jasper Trail over Small Creek No. 000000000178280 | 079441103 | 1900 | Truss - Thru | 62 ft | 50 | Poor |
| FM & 340th ST over Willow River No. 000000000179311 | 081420301 | 2005 | Stringer/Multi-beam or Girder | 179 ft | 50 | Good |
| FM Geneva Place over Soldier River No. 000000000179821 | 081442705 | 1980 | Stringer/Multi-beam or Girder | 204 ft | 50 | Good |
| 106th Trail over I-29 No. 000000000028400 | 1.5 Mi. N of Jct. SR F-20 | 1966 | Stringer/Multi-beam or Girder | 219 ft | 45 | Good |
| Spencer Ave over Pigeon Creek No. 000000000177271 | 078421004 | 2008 | Stringer/Multi-beam or Girder | 217 ft | 45 | Good |
| 280th Street over Allen Creek No. 000000000177672 | 078440501 | 2020 | Slab | 80 ft | 45 | Good |
| Local Taylor Av over Small Creek No. 000000000177960 | 079413302 | 1955 | Channel Beam | 43 ft | 45 | Poor |
| Redwood Ave over Six Mile Creek No. 000000000178031 | 079421108 | 1992 | Culvert | 21 ft | 45 | Fair |
| Neely Trail over Willow Creek No. 000000000178910 | 080432707 | 1940 | Truss - Thru | 148 ft | 45 | Poor |
| Spokane Ave over Mill Creek No. 000000000179211 | 081412104 | 2003 | Slab | 129 ft | 45 | Good |
| FM - 335th ST over Small Stream No. 000000000177160 | 078413601 | 1952 | Stringer/Multi-beam or Girder | 54 ft | 40 | Fair |
| Taylor Ave over Pigeon Creek No. 000000000177201 | 078420102 | 1920 | Truss - Thru | 133 ft | 40 | Poor |
| Parker Trail over Boyer River No. 000000000177991 | 079420406 | 2023 | Stringer/Multi-beam or Girder | 229 ft | 40 | Good |
| Malden Trail over Allen Creek No. 000000000178715 | 080430404 | 1940 | Truss - Thru | 82 ft | 40 | Fair |
| Hillside Ave over Steer Creek No. 000000000179020 | 080441106 | 1963 | Stringer/Multi-beam or Girder | 57 ft | 40 | Fair |
| 155th ST over Boyer River No. 000000000179272 | 081413107 | 2018 | Stringer/Multi-beam or Girder | 243 ft | 40 | Good |
| FM & Quay Ave over Small Stream No. 000000000179480 | 081423406 | 1948 | Culvert | 23 ft | 40 | Fair |
| Local 120th ST over Little Sioux River No. 000000000179721 | 081440703 | 1971 | Truss - Thru | 317 ft | 40 | Poor |
| 192 ST over I-29 No. 000000000028290 | 1.2 Mi. N of Jct. Ia 127 | 1967 | Stringer/Multi-beam or Girder | 219 ft | 34 | Fair |
| 160th ST over I-29 No. 000000000028340 | 1.8 Mi. S of Jct. SR F20 | 1967 | Stringer/Multi-beam or Girder | 228 ft | 34 | Good |
| 288th ST over Mosquito Creek No. 000000000176890 | 078410409 | 1940 | Truss - Thru | 150 ft | 34 | Poor |
| FM - 305th ST over Mosquito Creek No. 000000000177031 | 078411603 | 1978 | Stringer/Multi-beam or Girder | 83 ft | 34 | Fair |
| Toledo Ave over Pigeon Creek No. 000000000177940 | 079412702 | 1951 | Stringer/Multi-beam or Girder | 128 ft | 34 | Poor |
| 242nd Trail over Drainage Ditch No. 000000000178161 | 079431605 | 2013 | Stringer/Multi-beam or Girder | 25 ft | 34 | Poor |
| Harvard Trail over Allen Creek No. 000000000178922 | 080433006 | 2008 | Culvert | 24 ft | 34 | Good |
| F32 194th ST over Allen Creek No. 000000000366915 | S19 T80N R43W | 2023 | Stringer/Multi-beam or Girder | 28 ft | 34 | Good |
| Yale Ave over Keg Creek No. 000000000177020 | 078411302 | 1940 | Truss - Thru | 82 ft | 29 | Fair |
| 330th ST over Potato Creek No. 000000000177431 | 078423003 | 1980 | Culvert | 24 ft | 29 | Fair |
| Local Vienna Av over Spring Creek No. 000000000177910 | 079412402 | 1960 | Stringer/Multi-beam or Girder | 25 ft | 29 | Fair |
| Parker Trail over Small Creek No. 000000000178020 | 079420904 | 1916 | Stringer/Multi-beam or Girder | 32 ft | 29 | Poor |
| 235th Trail over Willow Creek No. 000000000178131 | 079431003 | 2006 | Stringer/Multi-beam or Girder | 191 ft | 29 | Good |
| Niles Trail over Harris Grove Creek No. 000000000178221 | 079433603 | 1975 | Stringer/Multi-beam or Girder | 33 ft | 29 | Fair |
| Loc 180th ST over S Picayune Creek No. 000000000178492 | 000000000 | 2009 | Culvert | 27 ft | 29 | Fair |
| Mobile Ave over Hoffman Creek No. 000000000178850 | 080432202 | 1940 | Truss - Thru | 83 ft | 29 | Poor |
| 210th Trail over Spooner Ditch No. 000000000179100 | 080443104 | 1959 | Tee Beam | 31 ft | 29 | Fair |
| Fm/Canton Ave over Soldier River No. 000000000179131 | 080451402 | 1974 | Stringer/Multi-beam or Girder | 255 ft | 29 | Good |
| Loc Tracey Ave over N Picayune Creek No. 000000000179291 | 081413408 | 2003 | Slab | 116 ft | 29 | Fair |
| FM & 110th ST over Willow River No. 000000000179400 | 081421601 | 1918 | Truss - Thru | 167 ft | 29 | Fair |
| Kendrick Ave over Allen Creek No. 000000000365565 | 000000000 | 2010 | Culvert | 34 ft | 29 | Fair |
| 280th Street over I-29 No. 000000000028170 | 1.5 MI S of SR F-50 | 1967 | Stringer/Multi-beam or Girder | 255 ft | 26 | Fair |
| FM & 220th ST over Pigeon Creek No. 000000000177800 | 079410101 | 1952 | Stringer/Multi-beam or Girder | 59 ft | 26 | Fair |
| Ruby Trail over Six Mile Creek No. 000000000178051 | 079421210 | 1945 | Stringer/Multi-beam or Girder | 103 ft | 26 | Fair |
| Loc Vienna Ave over Picayune Creek No. 000000000178441 | 080411204 | 2006 | Stringer/Multi-beam or Girder | 141 ft | 26 | Good |
| Loc 215th ST over Pigeon Creek No. 000000000178570 | 080413603 | 1955 | Stringer/Multi-beam or Girder | 60 ft | 26 | Poor |
| FM 110th ST over Straw Creek No. 000000000179560 | 081431001 | 1900 | Culvert | 26 ft | 26 | Fair |
| 235th ST over Allen Creek No. 000000000178271 | 079441003 | 2015 | Stringer/Multi-beam or Girder | 81 ft | 25 | Fair |
| 280th ST over Mosquito Creek No. 000000000176880 | 078410301 | 1940 | Truss - Thru | 181 ft | 20 | Poor |
| 305th ST over Keg Creek No. 000000000177000 | 078411301 | 1957 | Channel Beam | 42 ft | 20 | Poor |
| 315th ST over Mosquito Creek No. 000000000177050 | 078412003 | 1930 | Truss - Thru | 222 ft | 20 | Poor |
| 315th ST over Keg Creek No. 000000000177061 | 078412301 | 1999 | Slab | 128 ft | 20 | Good |
| Yates Ave over Small Stream No. 000000000177170 | 078413602 | 1960 | Stringer/Multi-beam or Girder | 43 ft | 20 | Fair |
| Loc 335th ST over Allen Creek No. 000000000177780 | 078443203 | 1959 | Stringer/Multi-beam or Girder | 62 ft | 20 | Poor |
| FM & 270th ST over Pigeon Creek No. 000000000177950 | 079413301 | 1951 | Stringer/Multi-beam or Girder | 127 ft | 20 | Fair |
| 270th ST over Spring Creek No. 000000000177970 | 079413501 | 1951 | Stringer/Multi-beam or Girder | 44 ft | 20 | Fair |
| FM & Nash Trail over Allen Creek No. 000000000179645 | 081432604 | 1976 | Girder and Floorbeam System | 67 ft | 20 | Poor |
| 288th Street over Patato Creek No. 000000000177221 | 078420409 | 1995 | Culvert | 27 ft | 15 | Fair |
| 240th Street over Pigeon Creek No. 000000000177870 | 079411403 | 1967 | Stringer/Multi-beam or Girder | 86 ft | 15 | Poor |
| 235th ST over Spooner Ditch No. 000000000178260 | 079440703 | 1962 | Tee Beam | 33 ft | 15 | Fair |
| FM & 170th ST over E.Picayune Creek No. 000000000178412 | 080410305 | 1978 | Stringer/Multi-beam or Girder | 102 ft | 15 | Fair |
| Quincy Trail over Boyer River No. 000000000178691 | 080422805 | 1994 | Stringer/Multi-beam or Girder | 246 ft | 15 | Good |
| 180th ST over Willow Creek No. 000000000178791 | 080431405 | 1975 | Stringer/Multi-beam or Girder | 164 ft | 15 | Poor |
| FM 130th ST over Allen Creek No. 000000000179621 | 081432303 | 1950 | Girder and Floorbeam System | 66 ft | 15 | Fair |
| 140th ST over Allen Creek No. 000000000179631 | 081432601 | 1973 | Stringer/Multi-beam or Girder | 64 ft | 15 | Fair |
| Madrid Ave over Stowe Creek No. 000000000366895 | S15 T81N R43W | 2023 | Culvert | 26 ft | 15 | Good |
Structure types in Harrison County
| Stringer/Multi-beam or Girder | 108 | 48.6% |
| Culvert | 39 | 17.6% |
| Slab | 32 | 14.4% |
| Truss - Thru | 24 | 10.8% |
| Girder and Floorbeam System | 10 | 4.5% |
| Channel Beam | 5 | 2.3% |
| Tee Beam | 3 | 1.4% |
| Truss - Deck | 1 | 0.5% |
Other counties in Iowa
- Adair County 303
- Adams County 185
- Allamakee County 197
- Appanoose County 185
- Audubon County 204
- Benton County 373
- Black Hawk County 489
- Boone County 134
- Bremer County 267
- Buchanan County 320
- Buena Vista County 157
- Butler County 287
- Calhoun County 198
- Carroll County 249
- Cass County 296
- Cedar County 300
- Cerro Gordo County 268
- Cherokee County 244
- Chickasaw County 304
- Clarke County 168
- Clay County 154
- Clayton County 257
- Clinton County 375
- Crawford County 301
- Dallas County 206
- Davis County 163
- Decatur County 199
- Delaware County 294
- Des Moines County 173
- Dickinson County 83
- Dubuque County 346
- Emmet County 78
- Fayette County 362
- Floyd County 214
- Franklin County 227
- Fremont County 179
- Greene County 168
- Grundy County 288
- Guthrie County 263
- Hamilton County 165
- Hancock County 135
- Hardin County 241
- Henry County 173
- Howard County 212
- Humboldt County 87
- Ida County 182
- Iowa County 239
- Jackson County 252
- Jasper County 382
- Jefferson County 156
- Johnson County 376
- Jones County 230
- Keokuk County 183
- Kossuth County 266
- Lee County 214
- Linn County 511
- Louisa County 151
- Lucas County 198
- Lyon County 273
- Madison County 225
- Mahaska County 221
- Marion County 217
- Marshall County 303
- Mills County 184
- Mitchell County 167
- Monona County 160
- Monroe County 131
- Montgomery County 209
- Muscatine County 144
- O'Brien County 263
- Osceola County 184
- Page County 191
- Palo Alto County 135
- Plymouth County 430
- Pocahontas County 198
- Polk County 548
- Pottawattamie County 557
- Poweshiek County 243
- Ringgold County 215
- Sac County 221
- Scott County 291
- Shelby County 207
- Sioux County 448
- Story County 302
- Tama County 337
- Taylor County 220
- Union County 172
- Van Buren County 155
- Wapello County 190
- Warren County 238
- Washington County 207
- Wayne County 165
- Webster County 190
- Winnebago County 54
- Winneshiek County 342
- Woodbury County 455
- Worth County 116
- Wright County 175