Benton County, Iowa bridges
Benton County has 373 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 81 (22%) are rated poor. The most common type is slab (51%).
- Bridges
- 373
- Good
- 36%
- Fair
- 42%
- Poor
- 22%
- 81 bridges
- Average age
- 39.8 yrs
- Posted or closed
- 41
Map of bridges in Benton County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Benton County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good36%(134)
Fair42%(158)
Poor22%(81)
When they were built
Busiest
- I 380 over Drainage DitchGood21,300 vehicles/day
- I-380 over Prairie CreekGood17,900 vehicles/day
- US 30 & 218 over StreamFair15,400 vehicles/day
- I 380 NB over Ia 150Good8,550 vehicles/day
- I 380 SB over Ia 150Good8,550 vehicles/day
Longest
- FM over Cedar RiverPoor1,038 ft
- FM over Cedar RiverPoor1,034 ft
- Ia 150 over Cedar RiverFair812 ft
- Fair
- 30th Ave over I-380Good399 ft
Oldest
- 10th Ave over Minnow CreekPoorBuilt 1900
- FM over Prairie CreekPoorBuilt 1900
- Local over Wild Cat CreekPoorBuilt 1900
- Local over Br Prairie CkPoorBuilt 1900
- Local RD over Br Mud CkPoorBuilt 1900
All bridges in Benton County
Busiest first · showing 1–200 of 373| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| I 380 over Drainage Ditch No. 000000000605130 | 0.5 Mi. S of Jct. Ia 150 | 1982 | Culvert | 35 ft | 21,300 | Good |
| I-380 over Prairie Creek No. 000000000605430 | 3.2 Mi. N of Ia. 150 | 1983 | Culvert | 25 ft | 17,900 | Good |
| US 30 & 218 over Stream No. 000000000014291 | 0.3 Mi. E of Jct. SR W28 | 1991 | Culvert | 23 ft | 15,400 | Fair |
| I 380 NB over Ia 150 No. 000000000605135 | At Jct. Iowa 150 | 1982 | Stringer/Multi-beam or Girder | 316 ft | 8,550 | Good |
| I 380 SB over Ia 150 No. 000000000605140 | At Jct. Iowa 150 | 1982 | Stringer/Multi-beam or Girder | 316 ft | 8,550 | Good |
| US 151 over Knapp Creek No. 000000000014521 | 1.3 Mi. N of SR E66 | 1995 | Culvert | 32 ft | 7,800 | Good |
| US 218 over Hinkle Creek No. 000000000014340 | 1.3 Mi. N of Ia 150 | 1959 | Stringer/Multi-beam or Girder | 133 ft | 4,910 | Good |
| US 30 & US 218 over Mud Creek No. 000000000014281 | 0.9 Mi. W of Jct. SR W14 | 2000 | Stringer/Multi-beam or Girder | 75 ft | 4,750 | Fair |
| US 30 EB over Mud Creek No. 000000000606905 | 0.9 Mi. W of Jct. SR W14 | 1998 | Slab | 113 ft | 4,750 | Fair |
| US 30 EB over Prairie Creek No. 000000000700490 | 1.7 Mi. E. of Co. Rd. V44 | 2022 | Stringer/Multi-beam or Girder | 246 ft | 3,850 | Good |
| Ia 150 over Cedar River No. 000000000014461 | 1.0 Mi. South of SR E16 | 1980 | Stringer/Multi-beam or Girder | 812 ft | 3,840 | Fair |
| Ia 150 over Cedar River Overflow No. 000000000014471 | 0.1 Mi. S of Jct. SR E16 | 1940 | Stringer/Multi-beam or Girder | 643 ft | 3,810 | Fair |
| US 30 EB over Unnamed Creek No. 000000000700495 | 1.2 Mi. W. of Co. Rd. V66 | 2022 | Slab | 91 ft | 3,800 | Good |
| US 218 over Stream No. 000000000014320 | 0.8 Mi. S of SR E-22 | 1956 | Culvert | 45 ft | 3,530 | Fair |
| US 218 over Mud Creek No. 000000000014331 | 0.8 Mi. S of Jct. SR E22 | 2008 | Stringer/Multi-beam or Girder | 184 ft | 3,530 | Good |
| Ia 150 over Prairie Creek No. 000000000014481 | 1.8 M N County RD V71 | 2024 | Stringer/Multi-beam or Girder | 103 ft | 3,450 | Good |
| Ia 150 over Stream No. 000000000701140 | 1.6 Mi. N Jct. SR E16 | 1940 | Culvert | 21 ft | 3,330 | Fair |
| 4th ST over Hinkle Creek No. 000000000011541 | 085101700 | 1973 | Tee Beam | 103 ft | 3,197 | Poor |
| FM over Bear Creek No. 000000000071670 | 084092603 | 1969 | Slab | 127 ft | 2,740 | Poor |
| Ia 21 over Iowa River Overflow No. 000000000014401 | 1.6 Mi. N of Jct. Ia 212 | 1982 | Slab | 204 ft | 2,710 | Fair |
| US 218 over Wildcat Creek No. 000000000014311 | 2.0 Mi. N of JCT SR E44 | 2016 | Slab | 91 ft | 2,690 | Good |
| US 218 over Branch of Wild Cat Creek No. 000000000607755 | 2.0 Mi. N of SR E-44 | 1997 | Culvert | 33 ft | 2,690 | Good |
| US 218 over Drainage Ditch No. 000000000608745 | 1.6 Mi. N of Jct. SR E44 | 1960 | Culvert | 23 ft | 2,690 | Good |
| 3rd ST over Hinkle Creek No. 000000000011551 | 085101700 | 1985 | Slab | 143 ft | 2,550 | Fair |
| Canton ST over Bear Creek No. 000000000010301 | R9W T89N Sect 14 0E 12S | 2010 | Slab | 122 ft | 2,438 | Good |
| US 218 over Abandoned RR No. 000000000014301 | 2.6 Mi. N of N Jct. US 30 | 1974 | Stringer/Multi-beam or Girder | 175 ft | 2,420 | Fair |
| SR 54th ST Trl over I-380 No. 000000000605125 | 1.6 Mi. S of Iowa 150 | 1981 | Stringer/Multi-beam or Girder | 302 ft | 2,231 | Fair |
| 13th Street over Minnow Creek No. 000000000505650 | 082122000 | 2001 | Culvert | 24 ft | 2,103 | Fair |
| Ia 21 over US 30 No. 000000000700500 | Ia 21 U.S. 30 Interchange | 2023 | Stringer/Multi-beam or Girder | 240 ft | 1,860 | Good |
| U.S. 218 over Stream No. 000000000014351 | 0.3 Mi. N of Jct. SR V61 | 2001 | Culvert | 30 ft | 1,700 | Good |
| Locust ST over Prairie Creek No. 000000000014450 | 082111304 | 1960 | Stringer/Multi-beam or Girder | 183 ft | 1,660 | Fair |
| 30 Ave over Small Natural Stream No. 000000000014560 | 082091710 | 1958 | Culvert | 58 ft | 1,561 | Poor |
| US 218 over Pratt Creek No. 000000000014361 | 0.7 Mi. E of Jct. Ia 8 | 2010 | Slab | 143 ft | 1,550 | Good |
| E24 61st ST Lane over Stream No. 000000000072521 | 085093303 | 2020 | Culvert | 35 ft | 1,532 | Good |
| FM over Mud Creek No. 000000000072631 | 085102205 | 1992 | Stringer/Multi-beam or Girder | 154 ft | 1,532 | Fair |
| Ia 21 over Branch Salt Creek No. 000000000014421 | 0.3 Mi. S of Jct. SR E44 | 1983 | Culvert | 24 ft | 1,470 | Good |
| Ia 21 over Branch Salt Creek No. 000000000014431 | 0.8 Mi. S of Jct. SR E36 | 1979 | Stringer/Multi-beam or Girder | 189 ft | 1,470 | Good |
| Ia 21 over Stein Creek No. 000000000014441 | 200 Ft. N of Jct. SR E36 | 1979 | Stringer/Multi-beam or Girder | 150 ft | 1,470 | Fair |
| FM over Dry Creek No. 000000000070870 | 083091102 | 1961 | Culvert | 21 ft | 1,444 | Poor |
| FM over Dry Creek No. 000000000070921 | 083091402 | 1999 | Slab | 115 ft | 1,444 | Fair |
| FM over Bear Creek No. 000000000071681 | 084092604 | 1999 | Slab | 128 ft | 1,444 | Fair |
| FM over Bear Creek No. 000000000365430 | 083101306 | 1957 | Culvert | 25 ft | 1,414 | Poor |
| V 37 over Small Creek No. 000000000073582 | 086121802 | 2013 | Culvert | 53 ft | 1,370 | Good |
| V 37 over Wolf Creek No. 000000000073591 | 086121802 | 2013 | Culvert | 29 ft | 1,345 | Good |
| FM over Rock Creek No. 000000000072861 | 085120602 | 2006 | Stringer/Multi-beam or Girder | 83 ft | 1,340 | Good |
| FM over Prairie Creek No. 000000000070121 | 082092010 | 1971 | Stringer/Multi-beam or Girder | 228 ft | 1,336 | Fair |
| V37 over Wolf Creek No. 000000000073601 | 086121902 | 2021 | Stringer/Multi-beam or Girder | 327 ft | 1,316 | Good |
| US 218 over US 30 No. 000000000700855 | US 218/US 30 Interchange | 2017 | Stringer/Multi-beam or Girder | 260 ft | 1,310 | Good |
| FM over Dry Creek No. 000000000070971 | 083092101 | 1998 | Slab | 128 ft | 1,296 | Fair |
| FM over Cedar River No. 000000000072430 | 085091106 | 1969 | Stringer/Multi-beam or Girder | 1,034 ft | 1,267 | Poor |
| Ia 150 over Stream No. 000000000014491 | 0.1 Mi. S of Jct. I-380 | 1981 | Culvert | 24 ft | 1,230 | Fair |
| V66 21 Ave over Cook Creek No. 000000000366750 | 082113508 | 1957 | Culvert | 21 ft | 1,230 | Fair |
| FM over Branch of Prairie Creek No. 000000000364125 | 083112502 | 1999 | Culvert | 25 ft | 1,220 | Good |
| Smith Street over Bear Creek No. 000000000505730 | Smith Street | 2023 | Slab | 181 ft | 1,210 | Good |
| US 218 over Rock Creek No. 000000000014371 | 0.7 Mi. S of Jct. SR D65 | 1990 | Slab | 104 ft | 1,160 | Good |
| 5th Ave over Prairie Creek No. 000000000014551 | 083211302 | 2017 | Stringer/Multi-beam or Girder | 103 ft | 1,119 | Good |
| 15 Ave over Branch Prairie Creek No. 000000000014540 | 083121306 | 1959 | Culvert | 31 ft | 1,100 | Fair |
| FM over Opossum Creek No. 000000000071610 | 084091501 | 1959 | Stringer/Multi-beam or Girder | 147 ft | 1,100 | Fair |
| FM over Wildcat Creek No. 000000000071631 | 084091701 | 1987 | Slab | 128 ft | 1,100 | Fair |
| FM over Prairie Creek No. 000000000071200 | 083111601 | 1966 | Slab | 78 ft | 1,090 | Fair |
| FM over Prairie Creek No. 000000000071410 | 083121301 | 1965 | Slab | 78 ft | 1,090 | Poor |
| FM over Opossum Creek No. 000000000071820 | 084101501 | 1959 | Culvert | 22 ft | 1,090 | Poor |
| FM over Opossum Creek No. 000000000071830 | 084101601 | 1959 | Culvert | 22 ft | 1,090 | Poor |
| E 44 (70th St) over Prairie Creek No. 000000000071182 | 083111501 | 2013 | Culvert | 32 ft | 1,070 | Good |
| E 44 (70th St) over Prairie Creek No. 000000000071212 | 083111603 | 2013 | Culvert | 38 ft | 1,070 | Good |
| Ia 8 over Branch Pratter Creek No. 000000000014380 | 1.2 Mi. W of US #218 | 1969 | Culvert | 22 ft | 1,040 | Fair |
| 13 Ave over Buckeye Creek No. 000000000014511 | 082122204 | 1976 | Slab | 83 ft | 1,002 | Poor |
| FM over Small Stream No. 000000000072570 | 085100602 | 1925 | Culvert | 45 ft | 940 | Poor |
| FM over Hinkle Creek No. 000000000072831 | 085113303 | 1991 | Culvert | 25 ft | 900 | Fair |
| 2nd Avenue over Drainage No. 000000000504375 | 085102100 | 1995 | Arch - Deck | 26 ft | 890 | Good |
| FM over Stern Creek No. 000000000070611 | 082122203 | 1987 | Slab | 78 ft | 850 | Fair |
| FM over Buckeye Creek No. 000000000070630 | 082122205 | 1960 | Culvert | 25 ft | 850 | Fair |
| FM over Buckeye Creek No. 000000000070700 | 082122405 | 1960 | Culvert | 21 ft | 850 | Fair |
| FM over Prairie Creek No. 000000000070310 | 082102403 | 1969 | Slab | 79 ft | 835 | Poor |
| FM over Prairie Creek No. 000000000070520 | 082112101 | 1960 | Culvert | 21 ft | 820 | Poor |
| 77 ST over Prairie Creek No. 000000000070271 | 082102001 | 2000 | Stringer/Multi-beam or Girder | 204 ft | 800 | Good |
| FM over Prairie Creek No. 000000000070220 | 082101402 | 1961 | Culvert | 21 ft | 766 | Poor |
| 51st Street over Blue Creek No. 000000000014531 | 086091113 | 1996 | Culvert | 26 ft | 707 | Good |
| FM over Bear Creek No. 000000000073121 | 086100206 | 1991 | Stringer/Multi-beam or Girder | 157 ft | 658 | Fair |
| E24 59 ST Trail over Spring Creek No. 000000000072481 | 085092407 | 2022 | Culvert | 25 ft | 638 | Good |
| V44 16 Ave over Prairie Creek No. 000000000070412 | 082110602 | 2021 | Culvert | 26 ft | 570 | Good |
| FM over Hinkle Creek No. 000000000072820 | 085113201 | 1962 | Culvert | 21 ft | 570 | Poor |
| FM over Prairie Creek No. 000000000072580 | 085101005 | 1967 | Slab | 128 ft | 550 | Poor |
| FM over Pratt Creek No. 000000000073411 | 086112502 | 1989 | Stringer/Multi-beam or Girder | 154 ft | 540 | Poor |
| FM over Pratt Creek No. 000000000073490 | 086113602 | 1956 | Culvert | 21 ft | 540 | Poor |
| FM over Small Stream No. 000000000363390 | 086112502 | 1991 | Culvert | 24 ft | 540 | Fair |
| FM over Hinkle Creek No. 000000000072801 | 085112804 | 1988 | Slab | 91 ft | 530 | Poor |
| E44 70th ST over Prairie Creek No. 000000000071431 | 083121401 | 2018 | Slab | 90 ft | 481 | Good |
| FM over Spring Creek No. 000000000073390 | 086112001 | 1959 | Slab | 78 ft | 430 | Poor |
| FM over Rock Creek No. 000000000073631 | 086122401 | 1985 | Slab | 103 ft | 430 | Poor |
| FM over Br Little Bear Creek No. 000000000071101 | 083101302 | 1929 | Culvert | 38 ft | 422 | Poor |
| FM over Wild Cat Creek No. 000000000071841 | 084102502 | 1993 | Slab | 128 ft | 422 | Fair |
| 1st Ave over Small Stream No. 000000000011650 | 000000000 | 1965 | Slab | 33 ft | 420 | Fair |
| FM (lwc) over Small Stream No. 000000000363670 | 082122905 | 1993 | Slab | 34 ft | 410 | Good |
| 10th Ave over Minnow Creek No. 000000000505405 | 082122301 | 1900 | Culvert | 21 ft | 349 | Poor |
| E22 61st ST over Stein Creek No. 000000000072931 | 085123101 | 2015 | Culvert | 39 ft | 340 | Good |
| E24 33rd Ave DR over Spring Creek No. 000000000072491 | 085092504 | 2015 | Culvert | 22 ft | 334 | Good |
| E22 61st ST over Pratt Creek No. 000000000072941 | 085123501 | 2015 | Culvert | 26 ft | 334 | Good |
| FM (lwc) over Small Stream No. 000000000073151 | 086100702 | 1990 | Stringer/Multi-beam or Girder | 49 ft | 330 | Poor |
| FM over Lime Creek No. 000000000073131 | 086100403 | 1990 | Stringer/Multi-beam or Girder | 179 ft | 324 | Fair |
| FM over Cedar River No. 000000000073140 | 086100603 | 1968 | Stringer/Multi-beam or Girder | 1,038 ft | 324 | Poor |
| FM over Prairie Creek No. 000000000070321 | 082102608 | 2002 | Stringer/Multi-beam or Girder | 204 ft | 206 | Good |
| V66 22nd Ave over Pratt Creek No. 000000000073501 | 086113600 | 2021 | Slab | 71 ft | 206 | Good |
| FM over Mud Creek No. 000000000071961 | 084110902 | 2002 | Slab | 90 ft | 200 | Fair |
| FM over Mud Creek No. 000000000072070 | 084112101 | 1955 | Culvert | 25 ft | 200 | Poor |
| FM over Mud Creek No. 000000000072141 | 084112601 | 2003 | Slab | 78 ft | 200 | Fair |
| FM over Wolf Creek No. 000000000073612 | 086121903 | 1988 | Culvert | 21 ft | 200 | Good |
| E24 61st ST LN over Spring Creek No. 000000000072556 | 085093601 | 2015 | Culvert | 30 ft | 180 | Good |
| 30 Ave DR over Branch Opossum Creek No. 000000000071531 | 084090400 | 2021 | Slab | 101 ft | 168 | Good |
| Local over Wild Cat Ck No. 000000000071541 | 084090902 | 1972 | Slab | 100 ft | 168 | Fair |
| V56 19th Ave over Prairie Creek No. 000000000070491 | 082111502 | 2015 | Stringer/Multi-beam or Girder | 167 ft | 157 | Good |
| FM over Small Stream No. 000000000072380 | 085090305 | 1961 | Culvert | 21 ft | 157 | Fair |
| FM over Small No. 000000000072395 | 085090403 | 1978 | Culvert | 21 ft | 157 | Fair |
| FM over Br Cedar River No. 000000000073251 | 086102804 | 1975 | Channel Beam | 25 ft | 150 | Poor |
| Local over Br Prairie Creek No. 000000000071491 | 083122301 | 1994 | Slab | 79 ft | 140 | Good |
| Local over Hinkle Creek No. 000000000501561 | 085112810 | 1987 | Slab | 78 ft | 140 | Fair |
| FM over Prairie Creek No. 000000000070111 | 082092008 | 1986 | Stringer/Multi-beam or Girder | 229 ft | 137 | Good |
| FM over Stein Creek No. 000000000072280 | 084122301 | 1969 | Culvert | 21 ft | 130 | Fair |
| 51 Street over I-380 No. 000000000605435 | 2.8 Mi. S of Jct. SR D48 | 1984 | Stringer/Multi-beam or Girder | 334 ft | 128 | Good |
| Local over Buckeye Ck No. 000000000070641 | 082122210 | 1975 | Slab | 102 ft | 120 | Fair |
| 22nd Ave DR over Bear Creek No. 000000000073211 | 086102104 | 2021 | Slab | 210 ft | 108 | Good |
| Fourth ST over Small Stream No. 000000000011660 | N60000500 | 1955 | Tee Beam | 31 ft | 104 | Fair |
| FM over Buckeye Creek No. 000000000070751 | 082123608 | 1973 | Channel Beam | 25 ft | 100 | Poor |
| FM over Wolf Creek No. 000000000073510 | 086120203 | 1967 | Stringer/Multi-beam or Girder | 358 ft | 100 | Fair |
| Local over Morgan Creek No. 000000000071020 | 083093602 | 1964 | Stringer/Multi-beam or Girder | 24 ft | 90 | Poor |
| Local over Mud Creek No. 000000000071121 | 083102602 | 1986 | Slab | 78 ft | 90 | Fair |
| Local over Prairie Ck No. 000000000072561 | 085100204 | 1971 | Stringer/Multi-beam or Girder | 40 ft | 90 | Poor |
| FM over Br Rock Ck No. 000000000073285 | 086110502 | 1973 | Channel Beam | 24 ft | 90 | Poor |
| 76th ST over Prairie Creek No. 000000000070071 | 082091403 | 2018 | Slab | 80 ft | 88 | Good |
| Local over Prairie Creek No. 000000000073261 | 086103603 | 1978 | Slab | 102 ft | 88 | Fair |
| V56 19 Ave over Prairie Creek No. 000000000366755 | 083111502 | 2021 | Culvert | 25 ft | 88 | Good |
| 75th ST over Branch Prairie Creek No. 000000000070041 | 082091001 | 2023 | Culvert | 21 ft | 84 | Good |
| FM over Prairie Creek No. 000000000070340 | 082103001 | 1900 | Culvert | 23 ft | 80 | Poor |
| 50th ST over Spring Creek No. 000000000073271 | 086110303 | 2012 | Slab | 103 ft | 80 | Good |
| FM over Little Bear Creek No. 000000000070791 | 083090403 | 1974 | Slab | 128 ft | 79 | Fair |
| Local (lwc) over Mud Creek No. 000000000071111 | 083102101 | 1988 | Slab | 40 ft | 79 | Fair |
| Local over Prairie Creek No. 000000000071421 | 083121303 | 1986 | Slab | 103 ft | 79 | Fair |
| 25th Ave over Mud Creek No. 000000000072661 | 085102818 | 2013 | Slab | 153 ft | 78 | Good |
| Local over Buffalo Creek No. 000000000070231 | 082101701 | 1986 | Culvert | 25 ft | 71 | Fair |
| Local over Weasel Creek No. 000000000070251 | 082101801 | 1986 | Slab | 78 ft | 71 | Fair |
| 75 ST DR over Small Stream No. 000000000070471 | 082111003 | 2000 | Culvert | 21 ft | 71 | Good |
| Local (lwc) over Br Buckeye Creek No. 000000000070681 | 082122302 | 1994 | Slab | 34 ft | 71 | Fair |
| Local over Buckeye Creek No. 000000000070741 | 082123606 | 1972 | Slab | 103 ft | 71 | Fair |
| Local over Br Prairie Creek No. 000000000363815 | 083122302 | 1995 | Slab | 34 ft | 71 | Fair |
| Local over Dry Creek No. 000000000070981 | 083092102 | 1985 | Culvert | 25 ft | 70 | Good |
| Local over Hinkle Creek No. 000000000072591 | 085101902 | 1984 | Slab | 100 ft | 70 | Fair |
| Local (lwc) over Bear Creek No. 000000000073231 | 086102202 | 1980 | Slab | 50 ft | 70 | Fair |
| FM over Rock Creek No. 000000000073291 | 086110503 | 1987 | Slab | 128 ft | 70 | Fair |
| FM over Rock Creek No. 000000000073311 | 086110802 | 1988 | Slab | 128 ft | 70 | Good |
| 30 Ave over Br of Dry Creek No. 000000000364245 | 083092102 | 1997 | Culvert | 21 ft | 70 | Good |
| 25 Ave over Small Stream No. 000000000364260 | 086102202 | 1998 | Culvert | 25 ft | 70 | Good |
| FM over W Blue Ck No. 000000000073061 | 086092302 | 1974 | Slab | 78 ft | 69 | Fair |
| FM over Blue Creek No. 000000000073101 | 086092602 | 2016 | Culvert | 29 ft | 69 | Good |
| Local (lwc) over Br Prairie Ck No. 000000000070275 | 082102004 | 1978 | Stringer/Multi-beam or Girder | 31 ft | 60 | Poor |
| FM over Mud Creek No. 000000000071761 | 084100703 | 1989 | Slab | 128 ft | 60 | Fair |
| E. 13th ST over Mud Ck No. 000000000072620 | 085102200 | 1965 | Slab | 58 ft | 60 | Poor |
| Local over Pratt Ck No. 000000000072700 | 085110502 | 1976 | Slab | 125 ft | 60 | Fair |
| Local over Br Hinkle Ck No. 000000000072755 | 085112501 | 1978 | Culvert | 21 ft | 60 | Fair |
| Local over Stein Ck No. 000000000072921 | 085123001 | 1971 | Channel Beam | 24 ft | 60 | Poor |
| Local over Spring Ck No. 000000000073401 | 086112002 | 2002 | Slab | 44 ft | 60 | Good |
| Local over Miller Creek No. 000000000073571 | 086121801 | 1993 | Culvert | 25 ft | 60 | Good |
| Local over Br Buffalo Creek No. 000000000363025 | 082100402 | 1988 | Culvert | 30 ft | 60 | Good |
| Local over Knapp Creek No. 000000000070131 | 082092502 | 1989 | Culvert | 25 ft | 59 | Good |
| 19th Ave over Hinkle Creek No. 000000000072791 | 085112704 | 2014 | Slab | 103 ft | 59 | Good |
| Local over Stream No. 000000000070840 | 083090801 | 1959 | Slab | 78 ft | 50 | Poor |
| Local over Dry Ck No. 000000000070901 | 083091401 | 1973 | Stringer/Multi-beam or Girder | 57 ft | 50 | Poor |
| Local over Br Prairie Ck No. 000000000071265 | 083112401 | 1978 | Culvert | 21 ft | 50 | Fair |
| Local over Prairie Creek No. 000000000072150 | 084112904 | 1970 | Channel Beam | 25 ft | 50 | Poor |
| Local over Prairie Creek No. 000000000072160 | 084113202 | 1947 | Stringer/Multi-beam or Girder | 40 ft | 50 | Poor |
| Local over Hinkle Creek No. 000000000072811 | 085112807 | 1989 | Slab | 90 ft | 50 | Good |
| Local over Blue Creek No. 000000000073091 | 086092408 | 1987 | Slab | 90 ft | 50 | Fair |
| 55th ST over Pratt Creek No. 000000000073481 | 086113601 | 2023 | Slab | 91 ft | 50 | Good |
| Local over Mud Creek No. 000000000070091 | 082091701 | 1985 | Slab | 103 ft | 49 | Fair |
| Local over Dry Creek No. 000000000070931 | 083091502 | 1987 | Slab | 90 ft | 49 | Good |
| Local over Little Bear Creek No. 000000000071721 | 084093401 | 1985 | Slab | 103 ft | 49 | Fair |
| 62nd ST over Branch Opossum Creek No. 000000000072532 | 085093305 | 2019 | Slab | 71 ft | 49 | Good |
| Local over Prairie Creek No. 000000000073241 | 086102503 | 1990 | Slab | 91 ft | 49 | Fair |
| Local over Small Stream No. 000000000363375 | 085102404 | 1991 | Slab | 42 ft | 49 | Fair |
| 75th ST over Branch Prairie Creek No. 000000000069991 | 082091101 | 2021 | Culvert | 21 ft | 46 | Good |
| Local (lwc) over Weasel Creek No. 000000000070350 | 082110101 | 1979 | Slab | 37 ft | 45 | Poor |
| FM over Prairie Creek No. 000000000070440 | 082110801 | 1959 | Culvert | 25 ft | 45 | Poor |
| Local (lwc) over Prairie Creek No. 000000000070461 | 082110901 | 1990 | Slab | 52 ft | 45 | Fair |
| Local over Br Buckeye Ck No. 000000000070651 | 082122207 | 1976 | Channel Beam | 31 ft | 45 | Poor |
| Local over Br Buckeye Creek No. 000000000070661 | 082122207 | 1995 | Culvert | 25 ft | 45 | Good |
| Local (lwc) over Stream No. 000000000070731 | 082123604 | 1977 | Slab | 25 ft | 45 | Fair |
| Local over Prairie Creek No. 000000000071140 | 083110502 | 1958 | Culvert | 21 ft | 45 | Fair |
| Local (lwc) over Prairie Creek No. 000000000071331 | 083113001 | 1986 | Slab | 53 ft | 45 | Fair |
| 65th ST over Mud Creek No. 000000000072081 | 084112201 | 2000 | Slab | 91 ft | 45 | Good |
| Local over Br Prairie Creek No. 000000000363040 | 083113001 | 1988 | Culvert | 26 ft | 45 | Fair |
| Local over Small No. 000000000363045 | 085113001 | 1988 | Culvert | 21 ft | 45 | Good |
| FM over Small Stream No. 000000000363545 | 083120201 | 1992 | Slab | 25 ft | 45 | Fair |
| FM over Small Stream No. 000000000363550 | 084102001 | 1992 | Slab | 25 ft | 45 | Fair |
| Local over Mud Creek No. 000000000070031 | 082090802 | 1996 | Slab | 164 ft | 44 | Good |
| Local over Dry Creek No. 000000000070881 | 083091201 | 1984 | Slab | 103 ft | 44 | Fair |
| Local over Little Bear Creek No. 000000000071091 | 083101301 | 1984 | Slab | 78 ft | 44 | Fair |
| V56 19th Ave over Prairie Creek No. 000000000071351 | 083113402 | 2014 | Slab | 91 ft | 44 | Good |
| Local over Br Blue Creek No. 000000000073051 | 086092201 | 1988 | Slab | 78 ft | 44 | Good |
| Local over Br Wild Cat Creek No. 000000000363975 | 084102801 | 1997 | Slab | 25 ft | 44 | Good |
| Local over Br Prairie Ck No. 000000000070451 | 082110802 | 1989 | Slab | 78 ft | 40 | Fair |
| Local over Buckeye Creek No. 000000000070551 | 082120901 | 1989 | Slab | 78 ft | 40 | Fair |
Structure types in Benton County
| Slab | 191 | 51.2% |
| Culvert | 103 | 27.6% |
| Stringer/Multi-beam or Girder | 52 | 13.9% |
| Channel Beam | 19 | 5.1% |
| Tee Beam | 5 | 1.3% |
| Truss - Thru | 2 | 0.5% |
| Arch - Deck | 1 | 0.3% |
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- Hamilton County 165
- Hancock County 135
- Hardin County 241
- Harrison County 222
- 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