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)

FM

Poor

Over: BUCKEYE CREEK

082123608, Benton, IA

Built 1973 Load: 27.1 t ADT: 100

LOCAL

Poor

Over: STEIN CK

085123001, Benton, IA

Built 1971 Load: 27.1 t ADT: 60

FM

Poor

Over: BR ROCK CK

086110502, Benton, IA

Built 1973 Load: 27.1 t ADT: 90

FM

Poor

Over: BEAR CREEK

084092603, Benton, IA

Built 1969 Load: 28.2 t ADT: 2,740

FM

Poor

Over: ROCK CK

085120701, Benton, IA

Built 1958 Load: 29.6 t ADT: 30

FM

Poor

Over: CEDAR RIVER

085091106, Benton, IA

Built 1969 Load: 29.8 t ADT: 1,267

FM

Poor

Over: MUD CREEK

084112101, Benton, IA

Built 1955 Load: 30.0 t ADT: 200

FM

Poor

Over: ROCK CREEK

086122401, Benton, IA

Built 1985 Load: 30.0 t ADT: 430

FM

Poor

Over: PRAIRIE CREEK

085101005, Benton, IA

Built 1967 Load: 30.4 t ADT: 550

LOCAL (LWC)

Poor

Over: STREAM

083112902, Benton, IA

Built 1977 Load: 30.6 t ADT: 34

FM

Poor

Over: PRATT CREEK

086113602, Benton, IA

Built 1956 Load: 30.7 t ADT: 540

FM (LWC)

Poor

Over: SMALL STREAM

085120502, Benton, IA

Built 1980 Load: 31.1 t ADT: 20

LOCAL

Poor

Over: BR WILDCAT CK

084102702, Benton, IA

Built 1957 Load: 31.3 t ADT: 15

FM

Poor

Over: PRAIRIE CREEK

082110801, Benton, IA

Built 1959 Load: 31.6 t ADT: 45

LOCAL

Poor

Over: WEASEL CK

082100701, Benton, IA

Built 1957 Load: 31.7 t ADT: 28

FM

Poor

Over: OPOSSUM CREEK

084101601, Benton, IA

Built 1959 Load: 32.3 t ADT: 1,090

FM

Poor

Over: HINKLE CREEK

085113201, Benton, IA

Built 1962 Load: 32.6 t ADT: 570

LOCAL

Poor

Over: MUD CREEK

084111502, Benton, IA

Built 1976 Load: 33.0 t ADT: 26

FM

Poor

Over: PRAIRIE CREEK

082101402, Benton, IA

Built 1961 Load: 33.3 t ADT: 766

FM (LWC)

Poor

Over: SMALL STREAM

086100702, Benton, IA

Built 1990 Load: 34.4 t ADT: 330

LOCAL

Poor

Over: BR PRAIRIE CK

082110502, Benton, IA

Built 1958 Load: 35.9 t ADT: 25

FM

Poor

Over: HINKLE CREEK

085112804, Benton, IA

Built 1988 Load: 36.4 t ADT: 530

FM

Poor

Over: PRATT CREEK

086112502, Benton, IA

Built 1989 Load: 36.9 t ADT: 540

FM

Poor

Over: DRY CREEK

083091102, Benton, IA

Built 1961 Load: 42.6 t ADT: 1,444

LOCAL

Poor

Over: DRY CREEK

083091202, Benton, IA

Built 1976 Load: 45.5 t ADT: 39

LOCAL

Poor

Over: STEIN CK

084121704, Benton, IA

Built 1999 Load: 51.2 t ADT: 11

FM

Poor

Over: PRAIRIE CREEK

082112101, Benton, IA

Built 1960 Load: 62.9 t ADT: 820

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

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

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.