Grundy County, Iowa bridges
Grundy County has 288 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 77 (27%) are rated poor. The most common type is stringer/multi-beam or girder (39%).
- Bridges
- 288
- Good
- 42%
- Fair
- 32%
- Poor
- 27%
- 77 bridges
- Average age
- 42.2 yrs
- Posted or closed
- 47
Map of bridges in Grundy County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Grundy County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good42%(120)
Fair32%(91)
Poor27%(77)
When they were built
Busiest
- US 20 over StreamGood14,500 vehicles/day
- US 20 over StreamGood13,500 vehicles/day
- US 20 over StreamGood8,800 vehicles/day
- US 20 WB over Grundy RDGood6,800 vehicles/day
- US 20 EB over Grundy RDGood6,800 vehicles/day
Longest
- Good
- Good
- Good
- Good
- FM over Black Hawk CreekPoor246 ft
Oldest
- Ia 57 over Drainage DitchFairBuilt 1900
- FM over Black Hawk CreekFairBuilt 1900
- Local over Branch Wolf CreekPoorBuilt 1914
- Local over Branch Wolf CreekPoorBuilt 1915
- Ia 175 over Munns CreekFairBuilt 1917
All bridges in Grundy County
Busiest first · showing 1–200 of 288| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| US 20 over Stream No. 000000000607695 | 2.0 Miles East of SR T55 | 1999 | Culvert | 21 ft | 14,500 | Good |
| US 20 over Stream No. 000000000607700 | 2.7 Miles W of JCT SR T55 | 1999 | Culvert | 31 ft | 13,500 | Good |
| US 20 over Stream No. 000000000607690 | 0.3 Miles E of JCT Ia 14 | 1999 | Culvert | 21 ft | 8,800 | Good |
| US 20 WB over Grundy RD No. 000000000606960 | At Junction SR D18 | 2000 | Stringer/Multi-beam or Girder | 164 ft | 6,800 | Good |
| US 20 EB over Grundy RD No. 000000000606965 | At Junction With SR D18 | 2000 | Stringer/Multi-beam or Girder | 164 ft | 6,800 | Good |
| US 20 WB over Stream No. 000000000607745 | 0.9 Miles W of JCT SR T55 | 2000 | Stringer/Multi-beam or Girder | 155 ft | 6,800 | Good |
| US 20 EB over Stream No. 000000000607715 | 0.9 Mile W of JCT SR T55 | 2000 | Stringer/Multi-beam or Girder | 155 ft | 6,750 | Good |
| US 20 EB over SR T55 No. 000000000607260 | At Junction With SR T55 | 2000 | Stringer/Multi-beam or Girder | 177 ft | 6,500 | Good |
| WB US 20 over SR T55 No. 000000000607265 | At Junction With SR T55 | 2000 | Stringer/Multi-beam or Girder | 177 ft | 6,500 | Good |
| US 20 EB over Local Stream No. 000000000607305 | 0.1 Mile West Jct. SR T55 | 1999 | Stringer/Multi-beam or Girder | 180 ft | 6,500 | Good |
| WB US 20 over Local Stream No. 000000000607310 | 0.1 Miles W of JCT SR T55 | 2000 | Stringer/Multi-beam or Girder | 183 ft | 6,500 | Good |
| US 20 WB over H Avenue No. 000000000608545 | 2.0 Miles East JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 149 ft | 5,000 | Good |
| US 20 EB over H Avenue No. 000000000608550 | 2.0 Mi. E of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 149 ft | 5,000 | Good |
| US 20 WB over S Beaver Creek No. 000000000608520 | 3.5 Miles W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 174 ft | 4,900 | Good |
| US 20 EB over S Beaver Creek No. 000000000608525 | 3.5 Miles W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 174 ft | 4,900 | Good |
| Ia 14 over N. Blackhawk Creek No. 000000000025851 | 1.2 Miles S of Jct. US 20 | 2006 | Slab | 93 ft | 4,770 | Good |
| US 20 WB over South Beaver Creek No. 000000000608510 | 0.1 Mile W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 277 ft | 4,550 | Good |
| US 20 EB over South Beaver Creek No. 000000000608515 | 0.1 Mile W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 277 ft | 4,550 | Good |
| US 20 WB over SR T19 No. 000000000608555 | At Junction With SR T19 | 2003 | Stringer/Multi-beam or Girder | 174 ft | 4,550 | Good |
| US 20 EB over T 19 No. 000000000608560 | At Junction With SR T19 | 2003 | Stringer/Multi-beam or Girder | 174 ft | 4,550 | Fair |
| US 20 EB over Ia 14 No. 000000000607320 | At Junction Ia 14 | 2000 | Stringer/Multi-beam or Girder | 208 ft | 4,400 | Fair |
| US 20 WB over Ia 14 No. 000000000607750 | At Junction With Ia 14 | 2000 | Stringer/Multi-beam or Girder | 208 ft | 4,400 | Good |
| Ia 14 over Black Hawk Creek No. 000000000025841 | 1.5 Mi. S of S JCT SR D35 | 1931 | Girder and Floorbeam System | 179 ft | 3,230 | Poor |
| Ia 14 over Wolf Creek No. 000000000025830 | 0.8 Miles North of SR D67 | 1921 | Slab | 62 ft | 2,850 | Fair |
| Ia 57 over Hammers Creek No. 000000000025811 | 3.4 Mi. E of E JCT SR T55 | 1986 | Slab | 113 ft | 2,580 | Good |
| Ia 175 over Branch Blackhawk Creek No. 000000000025941 | 0.8 Mile W of JCT SR T69 | 1977 | Slab | 89 ft | 2,120 | Fair |
| T-19 over Drainage No. 000000000608490 | 088180212 | 2003 | Culvert | 21 ft | 2,082 | Good |
| Center ST (D67) over Wolf Creek No. 000000000025951 | 086173101 | 1978 | Stringer/Multi-beam or Girder | 154 ft | 1,968 | Fair |
| FM over Blackhawk Creek No. 000000000165231 | 088173602 | 1971 | Slab | 128 ft | 1,935 | Poor |
| Ia 175 over Mosquito Creek No. 000000000025931 | 1.2 Miles W of JCT SR T65 | 1977 | Slab | 134 ft | 1,850 | Good |
| Ia 57 over Drainage Ditch No. 000000000025800 | 0.3 Mi. W of E JCT SR T55 | 1900 | Culvert | 22 ft | 1,800 | Fair |
| Washington ST over Small Natural Stream No. 000000000025980 | 088181401 | 1969 | Culvert | 26 ft | 1,528 | Fair |
| FM over Wolf Creek No. 000000000163641 | 086173404 | 1982 | Slab | 128 ft | 1,493 | Fair |
| First ST over Blackhawk Creek No. 000000000004144 | 088150501 | 1977 | Slab | 128 ft | 1,429 | Poor |
| First ST over Blackhawk Creek No. 000000000004146 | 088150501 | 1977 | Slab | 103 ft | 1,429 | Poor |
| FM over Black Hawk Creek No. 000000000164631 | 088150802 | 1974 | Slab | 128 ft | 1,404 | Fair |
| FM over Wolf Creek Branch No. 000000000163611 | 086173201 | 1975 | Culvert | 40 ft | 1,394 | Poor |
| Ia 175 over Minnehaha Creek No. 000000000025901 | 0.3 Mi. E of Jct. SR T45 | 1977 | Slab | 93 ft | 1,290 | Fair |
| Ia 175 over Munns Creek No. 000000000025910 | 0.8 Mile E of JCT SR T47 | 1917 | Slab | 43 ft | 1,270 | Fair |
| Ia 175 over Local Stream No. 000000000025921 | 0.4 Mile West of SR T53 | 2019 | Slab | 73 ft | 1,270 | Good |
| Lincoln ST over Blackhawk Creek No. 000000000006046 | 088173501 | 2014 | Slab | 71 ft | 1,176 | Good |
| F Ave over Small Natural Stream No. 000000000025960 | 087181102 | 1969 | Culvert | 43 ft | 1,169 | Fair |
| F Ave over Small Natural Stream No. 000000000025970 | 087181102 | 1969 | Culvert | 21 ft | 1,169 | Fair |
| Ia 175 over Stream No. 000000000609925 | 0.1 Mile W of W JCT Ia 14 | 1962 | Culvert | 21 ft | 1,110 | Fair |
| FM over Br Blackhawk Ck No. 000000000164715 | 088152002 | 1977 | Culvert | 22 ft | 1,051 | Fair |
| FM over Middle Fork Beaver Creek No. 000000000166361 | 089182502 | 1978 | Slab | 116 ft | 953 | Fair |
| FM over South Fork Beaver Creek No. 000000000166421 | 089183606 | 1980 | Stringer/Multi-beam or Girder | 154 ft | 953 | Fair |
| D35 215th ST over Blackhawk Creek Branch No. 000000000164771 | 088153403 | 2021 | Culvert | 27 ft | 903 | Good |
| SR D35 over Black Hawk Creek No. 000000000164781 | 088153503 | 2011 | Stringer/Multi-beam or Girder | 268 ft | 903 | Good |
| T13 D Ave over Waterway No. 000000000366175 | 089181002 | 2015 | Culvert | 25 ft | 805 | Good |
| D19 160th ST over Trib Blackhawk Creek No. 000000000025871 | 088160101 | 1984 | Slab | 83 ft | 786 | Fair |
| FM over Br N Blackhawk Creek No. 000000000025881 | 088160101 | 2004 | Stringer/Multi-beam or Girder | 243 ft | 786 | Good |
| D19 160th ST over Br N Blackhawk Creek No. 000000000025891 | 088150303 | 1985 | Culvert | 38 ft | 786 | Fair |
| FM over Creek No. 000000000165620 | 089152301 | 1966 | Culvert | 22 ft | 707 | Poor |
| FM over Black Hawk Creek No. 000000000163981 | 087152002 | 1979 | Slab | 226 ft | 687 | Poor |
| FM over Munns Creek No. 000000000164221 | 087162202 | 1994 | Culvert | 29 ft | 628 | Fair |
| T47 Q Ave over Mosquito Creek No. 000000000164292 | 087163402 | 2022 | Culvert | 32 ft | 628 | Good |
| Main ST over Wolf Creek No. 000000000002491 | 086173201 | 1999 | Slab | 148 ft | 625 | Fair |
| FM over Branch Beaver Creek No. 000000000165510 | 089150302 | 1968 | Slab | 32 ft | 619 | Poor |
| FM over Blackhawk Creek Branch No. 000000000164070 | 087160102 | 1966 | Culvert | 42 ft | 579 | Fair |
| FM over Blackhawk Creek Branch No. 000000000164080 | 087160102 | 1966 | Culvert | 24 ft | 579 | Fair |
| FM over Blackhawk Creek No. 000000000164160 | 087161304 | 1967 | Stringer/Multi-beam or Girder | 178 ft | 579 | Poor |
| D 19 160th ST over Small Stream No. 000000000025861 | 088160607 | 1984 | Culvert | 36 ft | 560 | Fair |
| FM over Blackhawk Creek Branch No. 000000000164960 | 088163303 | 1964 | Culvert | 25 ft | 550 | Fair |
| FM over Branch Bear Creek No. 000000000163720 | 086180602 | 1967 | Stringer/Multi-beam or Girder | 57 ft | 520 | Fair |
| FM over Branch Bear Creek No. 000000000164540 | 087183102 | 1966 | Culvert | 23 ft | 520 | Fair |
| FM over Mosquito Creek No. 000000000164021 | 087152902 | 1977 | Slab | 128 ft | 501 | Poor |
| FM over Beaver Creek No. 000000000165990 | 089172201 | 1973 | Stringer/Multi-beam or Girder | 180 ft | 501 | Poor |
| FM over Branch Beaver Creek No. 000000000166030 | 089172301 | 1970 | Culvert | 25 ft | 501 | Fair |
| FM over Dowd Creek No. 000000000163891 | 086183004 | 1972 | Stringer/Multi-beam or Girder | 127 ft | 491 | Poor |
| FM over Drainage Ditch No. 000000000165420 | 088182903 | 1955 | Culvert | 24 ft | 491 | Fair |
| 205th ST over Drainage Ditch No. 000000000165430 | 088182903 | 1955 | Culvert | 30 ft | 491 | Fair |
| 205th ST over Blackhawk Creek No. 000000000165151 | 088172703 | 1993 | Culvert | 56 ft | 452 | Fair |
| FM over Beaver Creek North Fork No. 000000000166181 | 089181302 | 1989 | Culvert | 24 ft | 452 | Fair |
| S75 B Ave over Branch of Bear Creek No. 000000000164500 | 087181902 | 1966 | Culvert | 22 ft | 442 | Fair |
| FM over Branch Black Hawk Creek No. 000000000163911 | 087150302 | 1973 | Stringer/Multi-beam or Girder | 58 ft | 412 | Poor |
| FM over Black Hawk Creek No. 000000000164001 | 087152202 | 1973 | Stringer/Multi-beam or Girder | 246 ft | 412 | Poor |
| FM over Branch Beaver Creek No. 000000000165950 | 089171502 | 1966 | Stringer/Multi-beam or Girder | 62 ft | 393 | Poor |
| FM over Wolf Creek Branch No. 000000000163452 | 086170704 | 1972 | Stringer/Multi-beam or Girder | 32 ft | 373 | Poor |
| FM over Beaver Creek North Fork No. 000000000166351 | 089182401 | 1990 | Culvert | 29 ft | 373 | Fair |
| FM over Black Hawk Creek No. 000000000165080 | 088171901 | 1900 | Culvert | 31 ft | 354 | Fair |
| US 20 EB Off Ramp over South Beaver Creek No. 000000000608495 | 0.1 Mile W of JCT SR T19 | 2003 | Slab | 201 ft | 350 | Good |
| US 20 WB on Ramp over Beaver Creek No. 000000000608540 | 0.1 Mile W of JCT SR T19 | 2003 | Slab | 201 ft | 340 | Good |
| FM over Fork of Minnehaha Creek No. 000000000164131 | 087160704 | 1986 | Slab | 103 ft | 324 | Fair |
| FM over Wolf Creek Branch No. 000000000163462 | 086170801 | 1972 | Stringer/Multi-beam or Girder | 58 ft | 285 | Poor |
| FM over Blackhawk Creek Branch No. 000000000164370 | 087171302 | 1965 | Stringer/Multi-beam or Girder | 44 ft | 275 | Poor |
| EB US 20 Ramp B over Stream No. 000000000607315 | 0.1 Mile W of JCT SR T55 | 2000 | Stringer/Multi-beam or Girder | 176 ft | 270 | Good |
| FM over Beaver Creek No. 000000000165381 | 088181503 | 1974 | Slab | 103 ft | 265 | Fair |
| FM over Beaver Creek Branch No. 000000000165400 | 088181705 | 1932 | Culvert | 21 ft | 265 | Poor |
| FM over Br.Blackhawk Creek No. 000000000164911 | 088162201 | 1986 | Culvert | 25 ft | 255 | Good |
| FM over Fork Wolf Creek No. 000000000362090 | 086173405 | 1983 | Culvert | 25 ft | 246 | Good |
| FM over Blackhawk Creek Branch No. 000000000165801 | 089162602 | 1996 | Culvert | 25 ft | 226 | Good |
| Nickel Ave over Munns Creek No. 000000000164260 | 087163004 | 1955 | Culvert | 30 ft | 216 | Poor |
| Local over Blackhawk Creek No. 000000000164122 | 087160705 | 1976 | Tee Beam | 62 ft | 196 | Good |
| FM over Dowd Creek Branch No. 000000000163820 | 086182001 | 1965 | Culvert | 30 ft | 187 | Fair |
| FM over Dowd Creek Branch No. 000000000163840 | 086182101 | 1966 | Stringer/Multi-beam or Girder | 58 ft | 187 | Poor |
| FM over Wolf Creek No. 000000000163850 | 086182301 | 1966 | Stringer/Multi-beam or Girder | 102 ft | 187 | Poor |
| FM over Blackhawk Creek Branch No. 000000000164890 | 088162001 | 1956 | Culvert | 25 ft | 177 | Poor |
| FM over Blackhawk Creek Branch No. 000000000164900 | 088162101 | 1956 | Culvert | 21 ft | 177 | Poor |
| FM over Blackhawk Creek Branch No. 000000000164361 | 087171002 | 1988 | Slab | 103 ft | 128 | Good |
| FM over Black Hawk Creek No. 000000000164751 | 088152401 | 1998 | Stringer/Multi-beam or Girder | 204 ft | 108 | Good |
| FM over Fork Beaver Creek No. 000000000166381 | 089182702 | 2004 | Slab | 128 ft | 108 | Good |
| Local Road over Branch Beaver Creek No. 000000000165541 | 089150801 | 1975 | Stringer/Multi-beam or Girder | 38 ft | 100 | Poor |
| Local Road over Middle Fork Beaver Creek No. 000000000166260 | 089181801 | 1952 | Stringer/Multi-beam or Girder | 51 ft | 99 | Poor |
| FM over Branch Bear Creek No. 000000000164530 | 087183101 | 1964 | Culvert | 23 ft | 98 | Fair |
| FM over Bear Creek Branch No. 000000000164550 | 087183201 | 1964 | Culvert | 30 ft | 98 | Fair |
| FM over Dowd Creek No. 000000000164570 | 087183301 | 1964 | Culvert | 25 ft | 98 | Poor |
| FM over Wolf Creek No. 000000000164600 | 087183501 | 1964 | Culvert | 38 ft | 98 | Fair |
| Local over Br Beaver Creek No. 000000000165001 | 088170604 | 2001 | Stringer/Multi-beam or Girder | 154 ft | 97 | Good |
| Local over Stream No. 000000000165581 | 089151401 | 1977 | Slab | 79 ft | 97 | Fair |
| Local over Br Beaver Creek No. 000000000166251 | 089181801 | 1996 | Culvert | 31 ft | 97 | Good |
| Local over Br Blackhawk Creek No. 000000000164351 | 087170903 | 1978 | Slab | 127 ft | 88 | Fair |
| T37 M Ave over Wolf Creek No. 000000000163671 | 086173602 | 2019 | Stringer/Multi-beam or Girder | 204 ft | 79 | Good |
| FM over Black Hawk No. 000000000165221 | 088173503 | 1981 | Slab | 103 ft | 79 | Fair |
| FM over Branch of Iowa River No. 000000000165451 | 088183102 | 1987 | Culvert | 24 ft | 79 | Fair |
| FM over Beaver Creek No. 000000000166010 | 089172202 | 1972 | Stringer/Multi-beam or Girder | 181 ft | 79 | Fair |
| FM over Beaver Creek Branch No. 000000000166290 | 089182001 | 1954 | Stringer/Multi-beam or Girder | 35 ft | 79 | Poor |
| FM over Beaver Creek Branch No. 000000000166300 | 089182001 | 1954 | Stringer/Multi-beam or Girder | 44 ft | 79 | Fair |
| FM over Beaver Creek Branch No. 000000000166311 | 089182001 | 1971 | Slab | 104 ft | 79 | Fair |
| Local over Branch Beaver Creek No. 000000000165310 | 088180804 | 1956 | Stringer/Multi-beam or Girder | 30 ft | 78 | Fair |
| Local over South Fork of Beaver Ck No. 000000000165321 | 088180902 | 1984 | Slab | 128 ft | 78 | Good |
| Local Road over Branch River Creek No. 000000000165740 | 089161801 | 1955 | Stringer/Multi-beam or Girder | 31 ft | 78 | Fair |
| Local over Small Stream No. 000000000364095 | 087181002 | 1999 | Tee Beam | 30 ft | 78 | Good |
| Local over Branch of Blackhawk Crk No. 000000000165185 | 088173102 | 1976 | Slab | 26 ft | 71 | Poor |
| Local Road over Wolf Creek No. 000000000163621 | 086173302 | 1978 | Slab | 128 ft | 70 | Good |
| Local over Blackhawk Creek Branch No. 000000000164421 | 087180302 | 1977 | Culvert | 28 ft | 70 | Good |
| Local Road over Blackhawk Creek No. 000000000164461 | 087181001 | 1977 | Stringer/Multi-beam or Girder | 46 ft | 70 | Fair |
| 175th ST over Branch Black Hawk Creek No. 000000000164682 | 088151203 | 2015 | Culvert | 27 ft | 70 | Good |
| Local over Black Hawk Creek No. 000000000165031 | 088171101 | 1977 | Stringer/Multi-beam or Girder | 45 ft | 70 | Poor |
| Local over Branch Beaver Creek No. 000000000165351 | 088180904 | 1988 | Culvert | 38 ft | 70 | Fair |
| Local over Hammers Creek No. 000000000165471 | 089150101 | 2009 | Tee Beam | 56 ft | 70 | Good |
| Local Road over Branch Beaver Creek No. 000000000165661 | 089160101 | 1991 | Culvert | 27 ft | 70 | Good |
| FM over Br Wolf Creek No. 000000000163427 | 086170102 | 1977 | Slab | 33 ft | 69 | Fair |
| Local over Branch Black Hawk Creek No. 000000000164191 | 087161802 | 1994 | Culvert | 29 ft | 69 | Fair |
| FM over Beaver Creek Branch No. 000000000166060 | 089172702 | 1970 | Culvert | 23 ft | 69 | Fair |
| T47 (q Ave) over US 20 No. 000000000607325 | 3.0 Miles E of JCT Ia 14 | 1999 | Stringer/Multi-beam or Girder | 235 ft | 69 | Good |
| FM over Small Stream No. 000000000607705 | 088160302 | 1999 | Culvert | 23 ft | 69 | Good |
| D Avenue over US 20 No. 000000000608500 | 2.0 Miles W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 224 ft | 69 | Good |
| Local Road over Branch of Wolf Creek No. 000000000163571 | 086172602 | 1976 | Slab | 32 ft | 59 | Poor |
| Local over Dowd Creek No. 000000000163830 | 086182002 | 1955 | Stringer/Multi-beam or Girder | 70 ft | 59 | Poor |
| FM over Wolf Creek Branch No. 000000000163861 | 086182401 | 1989 | Slab | 103 ft | 59 | Fair |
| Local Road over Wolf Creek No. 000000000163881 | 086182601 | 2001 | Slab | 78 ft | 59 | Good |
| Local Road over Branch Blackhawk Creek No. 000000000163920 | 087150402 | 1966 | Culvert | 21 ft | 59 | Fair |
| Local over Black Hawk Creek No. 000000000163990 | 087152102 | 1946 | Stringer/Multi-beam or Girder | 185 ft | 59 | Poor |
| Local over Black Hawk Creek No. 000000000164051 | 087153501 | 1986 | Culvert | 38 ft | 59 | Good |
| R Ave over Munns Creek No. 000000000164172 | 087161402 | 2016 | Slab | 83 ft | 59 | Good |
| R Ave over Branch Black Hawk Creek No. 000000000164181 | 087161402 | 2000 | Stringer/Multi-beam or Girder | 178 ft | 59 | Good |
| Local over Br Blackhawk Creek No. 000000000164311 | 087170202 | 1979 | Slab | 128 ft | 59 | Fair |
| Local Road over Rk Beaver Creek No. 000000000165301 | 088180602 | 2002 | Slab | 103 ft | 59 | Good |
| Local over Phelps Creek No. 000000000165691 | 089160603 | 1987 | Slab | 78 ft | 59 | Fair |
| Local Road over Middle Fork Beaver Creek No. 000000000166391 | 089182801 | 2006 | Slab | 115 ft | 59 | Good |
| X Avenue over US 20 No. 000000000606970 | 2.0 Miles West of SR D18 | 1999 | Stringer/Multi-beam or Girder | 229 ft | 59 | Good |
| Vista Ave over US 20 No. 000000000607720 | 1.6 Miles East of SR T55 | 1999 | Stringer/Multi-beam or Girder | 229 ft | 59 | Good |
| 165th Street over Br Beaver Creek No. 000000000608465 | 088180205 | 2003 | Culvert | 24 ft | 59 | Good |
| B Avenue over US 20 No. 000000000608505 | 4.0 Miles W of JCT SR T19 | 2003 | Stringer/Multi-beam or Girder | 234 ft | 59 | Good |
| R Ave over Branch of Blackhawk Crk No. 000000000164921 | 088162302 | 1976 | Stringer/Multi-beam or Girder | 33 ft | 50 | Poor |
| Local over Wolf Creek No. 000000000163681 | 086180201 | 1978 | Stringer/Multi-beam or Girder | 39 ft | 49 | Poor |
| Local Road over Dowd Creek No. 000000000163731 | 086180901 | 1978 | Slab | 78 ft | 49 | Fair |
| Local over Wolf Creek No. 000000000163741 | 086181001 | 1975 | Slab | 78 ft | 49 | Fair |
| Local over Fork of Dowd Creek No. 000000000163781 | 086181603 | 1985 | Culvert | 39 ft | 49 | Fair |
| Local over Br Blackhawk Creek No. 000000000164331 | 087170702 | 1979 | Slab | 103 ft | 49 | Fair |
| Local Road over Branch Black Hawk Creek No. 000000000164471 | 087181202 | 1990 | Slab | 103 ft | 49 | Good |
| Local Road over Branch Bear Creek No. 000000000164520 | 087183001 | 1955 | Culvert | 23 ft | 49 | Fair |
| Local Road over Branch Black Hawk Creek No. 000000000164671 | 088151102 | 2006 | Stringer/Multi-beam or Girder | 201 ft | 49 | Good |
| Local Road over Branch Blackhawk Crk No. 000000000165191 | 088173202 | 1976 | Slab | 32 ft | 49 | Poor |
| Local RD over Br Black Hawk Creek No. 000000000165211 | 088173302 | 2002 | Culvert | 40 ft | 49 | Good |
| Local over Blackhawk Creek Branch No. 000000000165641 | 089153102 | 2004 | Slab | 116 ft | 49 | Good |
| Local over Branch Blackhawk Creek No. 000000000165651 | 089153201 | 1988 | Culvert | 29 ft | 49 | Fair |
| E Ave over South Fork Beaver Creek No. 000000000365800 | 088181502 | 2012 | Culvert | 30 ft | 49 | Good |
| I Ave over Black Hawk Creek No. 000000000366700 | 088172002 | 2021 | Culvert | 43 ft | 49 | Good |
| J Avenue over US 20 No. 000000000608535 | 4.0 Miles W of JCT Ia 14 | 2003 | Stringer/Multi-beam or Girder | 224 ft | 49 | Good |
| Local over Branch Wolf Creek No. 000000000163480 | 086171101 | 1915 | Slab | 24 ft | 44 | Poor |
| D55 (290th St) over Branch Wolf Creek No. 000000000163491 | 86171101 | 2013 | Culvert | 34 ft | 44 | Good |
| Local Road over Branch of Wolf Creek No. 000000000163535 | 086171803 | 1977 | Stringer/Multi-beam or Girder | 39 ft | 44 | Poor |
| Local Road over Branch of Wolf Creek No. 000000000163541 | 086171803 | 1977 | Stringer/Multi-beam or Girder | 52 ft | 44 | Poor |
| Local over Creek No. 000000000163871 | 086182501 | 1978 | Stringer/Multi-beam or Girder | 56 ft | 44 | Fair |
| FM over Mosquito Creek No. 000000000164031 | 087153101 | 1981 | Slab | 103 ft | 44 | Good |
| Local Road over Branch Black Hawk Creek No. 000000000164060 | 087153502 | 1973 | Stringer/Multi-beam or Girder | 35 ft | 44 | Poor |
| Local over Fk of Blackhawk Creek No. 000000000164391 | 087172401 | 1997 | Tee Beam | 44 ft | 44 | Fair |
| 180th ST over Black Hawk Creek No. 000000000164691 | 088151801 | 2015 | Stringer/Multi-beam or Girder | 167 ft | 44 | Good |
| Local over Blackhawk Creek No. 000000000164830 | 088161001 | 1957 | Culvert | 25 ft | 44 | Fair |
| Local over Blackhawk Creek No. 000000000164841 | 088161001 | 1995 | Culvert | 31 ft | 44 | Good |
| 160th ST over South Fork Beaver Creek No. 000000000164991 | 088170601 | 2022 | Slab | 151 ft | 44 | Good |
| Local Road over South Fork Beaver Creek No. 000000000165250 | 088180101 | 1948 | Stringer/Multi-beam or Girder | 126 ft | 44 | Poor |
| Local over Fork of Beaver Creek No. 000000000165371 | 088181502 | 1984 | Culvert | 44 ft | 44 | Fair |
| Local over Br Beaver Creek No. 000000000165931 | 089171401 | 1978 | Stringer/Multi-beam or Girder | 38 ft | 44 | Poor |
| Local over Branch Beaver Creek No. 000000000166240 | 089181702 | 1957 | Stringer/Multi-beam or Girder | 62 ft | 44 | Fair |
| H Ave over Wolf Creek No. 000000000366395 | 087171902 | 2018 | Culvert | 26 ft | 44 | Good |
| Local over Branch of Beaver Creek No. 000000000165891 | 089170602 | 1953 | Stringer/Multi-beam or Girder | 50 ft | 40 | Poor |
| Local over Dowd Creek No. 000000000163701 | 086180401 | 1990 | Culvert | 26 ft | 39 | Fair |
| FM over Mosquito Creek No. 000000000164301 | 087163602 | 1983 | Slab | 103 ft | 39 | Good |
| Local over Branch Bear Creek No. 000000000164560 | 087183202 | 1954 | Stringer/Multi-beam or Girder | 45 ft | 39 | Fair |
| Local over Branch Beaver Creek No. 000000000165331 | 088180903 | 1992 | Culvert | 39 ft | 39 | Good |
| Local RD over South Fork Beaver Creek No. 000000000165341 | 088180903 | 1977 | Stringer/Multi-beam or Girder | 56 ft | 39 | Poor |
| Local over Fork of Beaver Creek No. 000000000165711 | 089160901 | 1985 | Culvert | 29 ft | 39 | Good |
| R Ave over N Fork Black Hawk Creek No. 000000000165852 | 089163602 | 2022 | Slab | 81 ft | 39 | Good |
| Local Road over Middle Fork Beaver Creek No. 000000000166100 | 089172902 | 1948 | Stringer/Multi-beam or Girder | 126 ft | 39 | Poor |
| Local Road over North Fork Beaver No. 000000000166111 | 089172902 | 1981 | Stringer/Multi-beam or Girder | 41 ft | 39 | Poor |
| G Ave over S Fork of Beaver Creek No. 000000000166131 | 089173102 | 2017 | Slab | 151 ft | 39 | Good |
| FM over Branch Beaver Creek No. 000000000166161 | 089173402 | 1971 | Culvert | 24 ft | 39 | Fair |
Structure types in Grundy County
| Stringer/Multi-beam or Girder | 113 | 39.2% |
| Culvert | 95 | 33.0% |
| Slab | 63 | 21.9% |
| Tee Beam | 15 | 5.2% |
| Girder and Floorbeam System | 2 | 0.7% |
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
- Guthrie County 263
- 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