Benton County, IA

327 public highway bridges

Benton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Benton County, Iowa contains 327 public highway bridges. Roughly 32.1% are rated “Good,” 42.2% “Fair,” and 23.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

327

Total Bridges

32.1%

Good

42.2%

Fair

23.5%

Poor Condition

Condition Distribution

Good

32.1% (105)

Fair

42.2% (138)

Poor

23.5% (77)

All Bridges (327)

Sort:

SR 54TH ST TRL

Over: I-380

1.6 MI. S OF IOWA 150, Benton, IA

Built 1981 ADT: 18,900

I 380 NB

Over: IA 150

At Jct. Iowa 150, Benton, IA

Built 1982 ADT: 1,405

I 380 SB

Over: IA 150

At jct. Iowa 150, Benton, IA

Built 1982 ADT: 1,405

30TH AVE

Over: I-380

1.5 MILES N OF JCT IA 150, Benton, IA

Built 1984 ADT: 17,700

51 STREET

Over: I-380

2.8 mi. S of Jct. SR D48, Benton, IA

Built 1984 ADT: 17,700

IA 21

Over: US 30

IA 21 U.S. 30 INTERCHANGE, Benton, IA

US 218

Over: US 30

US 218/US 30 INTERCHANGE, Benton, IA

Built 2017 ADT: 7,700

IA 150

Over: STREAM

1.6 mi. N jct. SR E16, Benton, IA

Built 1940 Load: 13.6 t ADT: 3,330

LOCAL

Over: BR MUD CREEK

083102703, Benton, IA

Built 1972 Load: 18.3 t ADT: 15

LOCAL

Over: BR PRAIRIE CK

083112401, Benton, IA

Built 1978 Load: 18.3 t ADT: 50

LOCAL

Over: BR PRATT CK

086112602, Benton, IA

Built 1975 Load: 18.3 t ADT: 20

LOCAL

Over: BUCKEYE CK

082122210, Benton, IA

Built 1975 Load: 21.2 t ADT: 120

LOCAL

Over: BUCKEYE CREEK

082123606, Benton, IA

Built 1972 Load: 21.2 t ADT: 71

LOCAL

Over: WILD CAT CK

084090902, Benton, IA

Built 1972 Load: 21.2 t ADT: 168

LOCAL

Over: WILD CAT CREEK

084103401, Benton, IA

Built 1974 Load: 21.2 t ADT: 26

LOCAL

Over: BR HINKLE CK

085112501, Benton, IA

Built 1978 Load: 21.2 t ADT: 60

LOCAL

Over: BR BEAR CK

086101107, Benton, IA

Built 1972 Load: 21.2 t ADT: 33

LOCAL

Over: ROCK CK

086122604, Benton, IA

Built 1974 Load: 21.2 t ADT: 20

LOCAL

Over: BR CEDAR RIVER

086121203, Benton, IA

Built 1973 Load: 21.2 t ADT: 20

LOCAL

Over: BR MUD CK

084111502, Benton, IA

Built 1972 Load: 22.1 t ADT: 26

LOCAL

Over: SPRING CK

086111502, Benton, IA

Built 1974 Load: 22.1 t ADT: 40

FM

Over: LITTLE BEAR CREEK

083090403, Benton, IA

Built 1974 Load: 22.3 t ADT: 79

LOCAL

Over: PRATT CK

085110502, Benton, IA

Built 1976 Load: 22.3 t ADT: 60

LOCAL

Over: PRATT CK

086112702, Benton, IA

Built 1977 Load: 22.3 t ADT: 30

V66 21 AVE

Over: COOK CREEK

082113508, Benton, IA

Built 1957 Load: 24.5 t ADT: 1,230

LOCAL (LWC)

Over: PRAIRIE CREEK

083110701, Benton, IA

Built 1986 Load: 25.0 t ADT: 5

FM

Over: SMALL

085090403, Benton, IA

Built 1978 Load: 25.0 t ADT: 157

FM

Over: PRAIRIE CREEK

083111601, Benton, IA

Built 1966 Load: 25.2 t ADT: 1,090

LOCAL (LWC)

Over: PRATT CREEK

085122601, Benton, IA

Built 1995 Load: 25.5 t ADT: 11

LOCAL

Over: LITTLE BEAR CREEK

083101301, Benton, IA

Built 1984 Load: 26.5 t ADT: 44

LOCAL

Over: BRANCH PRAIRIE CREEK

083112602, Benton, IA

Built 1984 Load: 26.5 t ADT: 26

LOCAL

Over: MUD CREEK

084112304, Benton, IA

Built 1985 Load: 26.5 t ADT: 26

LOCAL

Over: STREAM

083090702, Benton, IA

Built 1977 Load: 26.6 t ADT: 39

LOCAL

Over: BR PRAIRIE CK

083110702, Benton, IA

Built 1985 Load: 26.6 t ADT: 26

LOCAL

Over: STREAM

083111901, Benton, IA

Built 2002 Load: 26.8 t ADT: 11

LOCAL (LWC)

Over: PRAIRIE CREEK

083113001, Benton, IA

Built 1986 Load: 27.1 t ADT: 45

FM

Over: WOLF CREEK

086120203, Benton, IA

Built 1967 Load: 27.1 t ADT: 100

LOCAL

Over: PRAIRIE CREEK

086090703, Benton, IA

Built 1996 Load: 28.2 t ADT: 20

LOCAL (LWC)

Over: BR PRAIRIE CK

083122403, Benton, IA

Built 1979 Load: 29.2 t ADT: 40

FM

Over: PRATT CREEK

085110401, Benton, IA

Built 1982 Load: 29.2 t ADT: 25

LOCAL

Over: SMALL STREAM

084100401, Benton, IA

Built 1991 Load: 29.6 t ADT: 11

FM

Over: WILDCAT CREEK

084091701, Benton, IA

Built 1987 Load: 29.8 t ADT: 1,100

FM

Over: ROCK CREEK

086110503, Benton, IA

Built 1987 Load: 29.8 t ADT: 70

LOCAL

Over: DRY CREEK

083091201, Benton, IA

Built 1984 Load: 30.0 t ADT: 44

LOCAL

Over: HINKLE CREEK

085101902, Benton, IA

Built 1984 Load: 30.0 t ADT: 71

LOCAL

Over: HINKLE CREEK

085112703, Benton, IA

Built 1973 Load: 30.0 t ADT: 34

LOCAL

Over: PRAIRIE CK

083111902, Benton, IA

Built 1975 Load: 30.2 t ADT: 15

LOCAL

Over: LITTLE BEAR CREEK

084093401, Benton, IA

Built 1985 Load: 30.2 t ADT: 49

LOCAL

Over: WILDCAT CREEK

084103402, Benton, IA

Built 1984 Load: 30.2 t ADT: 20

LOCAL

Over: PRATT CREEK

086113301, Benton, IA

Built 1984 Load: 30.2 t ADT: 20

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

P

Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.