Polk County, IA

415 public highway bridges

Polk County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Polk County, Iowa contains 415 public highway bridges. Roughly 35.4% are rated “Good,” 25.3% “Fair,” and 6% “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.

415

Total Bridges

35.4%

Good

25.3%

Fair

6%

Poor Condition

Condition Distribution

Good

35.4% (147)

Fair

25.3% (105)

Poor

6% (25)

All Bridges (415)

Sort:

NW 5TH ST

Over: ROCK CREEK

080241606, Polk, IA

Built 1981 Load: 32.7 t ADT: 1,820

LOCAL

Over: CREEK

081250502, Polk, IA

Built 1987 Load: 32.7 t ADT: 60

LOCAL

Over: TRIB BIG CREEK

081250301, Polk, IA

Built 1992 Load: 32.7 t ADT: 60

E.P.TRUE PARKWY

Over: JORDON CREEK

000000000, Polk, IA

Built 1986 Load: 32.7 t ADT: 12,612

GUTHRIE AVE

Over: OVER UP RR

079243600, Polk, IA

Built 1978 Load: 32.7 t ADT: 5,368

INDIANOLA RD

Over: YEADER CREEK

078242302, Polk, IA

Built 1986 Load: 32.7 t ADT: 8,570

EP TRUE PARKWAY

Over: JORDON CREEK

000000000, Polk, IA

Built 1990 Load: 32.7 t ADT: 12,809

NE LAKEVIEW DR

Over: WATERWAY

080241300, Polk, IA

Built 1994 Load: 32.7 t ADT: 523

DELAWARE AVE

Over: 7TH WARD DITCH

079242800, Polk, IA

Built 1996 Load: 32.7 t ADT: 5,534

PROSPECT RD

Over: CLOSES CREEK

Prospect Rd. at Closes Cr, Polk, IA

Built 1984 Load: 32.7 t ADT: 2,245

ARMY POST RD

Over: ORNERY CREEK

Army Post over Ornery Crk, Polk, IA

Built 1956 Load: 32.7 t ADT: 349

I-235

Over: DRAINAGE DITCH

0.4 MILE EAST OF IOWA 28, Polk, IA

Built 1966 Load: 32.7 t ADT: 118,600

SB US 65

Over: SOUTH SKUNK RIVER

7.6 MILES N OF JCT I-80, Polk, IA

Built 2000 Load: 32.8 t ADT: 4,800

INDUSTRAIL CIR

Over: CREEK

000000000, Polk, IA

Built 1998 Load: 33.0 t ADT: 1,138

EASTER LK PK

Over: STREAM

000000000, Polk, IA

Built 1968 Load: 33.5 t

N.E.DELAWARE AV

Over: FOUR MILE CREEK

080230700, Polk, IA

Built 1982 Load: 33.7 t ADT: 5,650

SB I-35

Over: OVER UPP RR

1.1 MILES N OF N JCT I-80, Polk, IA

Built 2002 Load: 35.1 t ADT: 45,700

LOCAL

Over: D.D. #51

079241461, Polk, IA

Built 1991 Load: 36.6 t ADT: 180

IA 415

Over: SAYLORVILLE RESERVOIR

West of Polk City, Polk, IA

Built 1973 Load: 36.8 t ADT: 10,100

IA 28 NB

Over: RACCOON RIVER

2.1 MILES S OF JCT I-235, Polk, IA

Built 1994 Load: 37.4 t ADT: 12,650

LOCAL ROAD

Over: WOLFE CREEK

081253605, Polk, IA

Built 1993 Load: 37.6 t ADT: 349

EB I-235

Over: WALNUT CREEK

3.4 MI. E OF W JCT. 35/80, Polk, IA

Built 1968 Load: 37.9 t ADT: 58,050

NE 80TH ST

Over: MUD CREEK

079220804, Polk, IA

Built 1990 Load: 37.9 t ADT: 528

LOCAL

Over: SMALL STREAM

079220903, Polk, IA

Built 1995 Load: 38.5 t ADT: 60

NB NW 100TH ST

Over: WALNUT CREEK

079253400, Polk, IA

Built 1988 Load: 38.7 t ADT: 3,579

SB NW 100TH ST

Over: WALNUT CREEK

079253400, Polk, IA

Built 1988 Load: 38.7 t ADT: 3,203

NE 36TH STREET

Over: FOURMILE CREEK

080241201, Polk, IA

Built 1990 Load: 38.8 t ADT: 3,156

MEREDITH DR

Over: N WALNUT CREEK

O39400540, Polk, IA

Built 1989 Load: 39.3 t ADT: 12,150

LOCAL NE 54TH

Over: FOUR MILE CREEK

080240100, Polk, IA

Built 1990 Load: 39.5 t ADT: 1,377

SB I-35,WB I-80

Over: DRAINAGE DITCH

0.8 mi. W of Jct. IA 415, Polk, IA

Built 1958 Load: 40.0 t ADT: 48,000

LOCAL

Over: SPRING CREEK

078220705, Polk, IA

Built 1975 Load: 42.1 t ADT: 597

SW 42ND ST

Over: FRINK CREEK

078243000, Polk, IA

Built 1976 Load: 42.4 t ADT: 121

FM NE 46TH ST

Over: MUCHIKINOCK CREEK

080233402, Polk, IA

Built 1990 Load: 43.4 t ADT: 270

BIRDLAND DRIVE

Over: BIRDLAND LAGOON

079243583, Polk, IA

Built 1930 Load: 44.3 t ADT: 351

WB IA 163

Over: MUD CREEK

2.3 MILES W OF JCT IA 316, Polk, IA

Built 1963 Load: 44.8 t ADT: 7,450

FM NE 46TH ST

Over: MUCHIKINOCK CREEK

080233402, Polk, IA

Built 1990 Load: 45.9 t ADT: 270

BUFFALO RD

Over: WALNUT CREEK

078250300, Polk, IA

Built 1991 Load: 47.1 t ADT: 727

FM

Over: SPRING CREEK

078232407, Polk, IA

Built 1978 Load: 47.2 t ADT: 649

FM

Over: TRIB. TO BIG CREEK

081250901, Polk, IA

Built 1991 Load: 49.2 t ADT: 150

EP TRUE PARKWAY

Over: JORDON CREEK

P27050490, Polk, IA

Built 1990 Load: 49.2 t ADT: 11,432

FM

Over: WHITE OAK CREEK

081231603, Polk, IA

Built 1990 Load: 51.2 t ADT: 270

NE 46TH ST

Over: MUCHIKINOCK CREEK

080233402, Polk, IA

Built 1990 Load: 65.6 t ADT: 270

E HARTFORD AVE

Over: CREEK

078241100, Polk, IA

Built 1980 Load: 88.9 t ADT: 5,181

LOCAL ROAD

Over: CREEK

079230401, Polk, IA

Built 2003 Load: 18.4 t ADT: 60

FM

Over: STREAM

080222706, Polk, IA

Built 1975 Load: 18.8 t ADT: 417

FM

Over: FOUR MILE CREEK

081240901, Polk, IA

Built 1975 Load: 21.0 t ADT: 259

FM

Over: BRANCH OF BIG CREEK

081250903, Polk, IA

Built 1971 Load: 21.4 t ADT: 79

GRAND AVE

Over: DRAINAGE

Grand Ave, Polk, IA

Built 2017 Load: 22.0 t ADT: 95

FM

Over: WHITE OAK CREEK

081230904, Polk, IA

Built 1969 Load: 23.0 t ADT: 660

34TH ST

Over: STREAM

P61450550, Polk, IA

Built 1990 Load: 23.1 t ADT: 651

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

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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.