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)

NE CORY GROVE RD

Good

Over: OLD CHANNEL

081232506, Polk, IA

Built 2000 Load: 23.9 t ADT: 11

NE 126TH AVE

Good

Over: DRAINAGE DITCH

081233603, Polk, IA

Built 2000 Load: 24.8 t ADT: 816

WISTFUL VISTA

Good

Over: JORDAN CREEK

000000000, Polk, IA

Built 1996 Load: 24.9 t ADT: 651

ASPEN DR

Good

Over: WESTERN HILLS CREEK

000000000, Polk, IA

Built 1994 Load: 25.3 t ADT: 651

WHITE OAK DR

Good

Over: WHITE OAK CREEK

081231606, Polk, IA

Built 2011 Load: 25.6 t ADT: 499

FM

Good

Over: DRAINAGE DITCH #38

080221302, Polk, IA

Built 2001 Load: 26.2 t ADT: 409

NE 134TH AVE

Good

Over: DITCH NO 4

081223005, Polk, IA

Built 2000 Load: 26.3 t ADT: 777

FM

Good

Over: E FOURMILE CK

079232603, Polk, IA

Built 2005 Load: 26.8 t ADT: 2,560

NW 54TH AVE

Good

Over: DRAINAGE DISTRICT 1

0107924, Polk, IA

Built 2011 Load: 26.9 t ADT: 956

FM

Good

Over: ROCK CREEK

080243204, Polk, IA

Built 1981 Load: 27.7 t ADT: 1,752

FM

Good

Over: FOURMILE CREEK

080232918, Polk, IA

Built 1986 Load: 28.1 t ADT: 1,047

FM

Good

Over: SKUNK RIVER

081223006, Polk, IA

Built 1973 Load: 28.5 t ADT: 967

US 65

Good

Over: MUD CREEK

IN BONDURANT, Polk, IA

Built 1974 Load: 28.6 t ADT: 13,800

FM

Good

Over: SKUNK RIVER

080222402, Polk, IA

Built 1961 Load: 28.8 t ADT: 588

FM

Good

Over: CREEK

079242204, Polk, IA

Built 1974 Load: 29.2 t ADT: 3,426

FM

Good

Over: BRANCH DES MOINES RIVER

079242206, Polk, IA

Built 1974 Load: 29.2 t ADT: 3,685

LOCAL

Good

Over: SPRING CREEK

078221906, Polk, IA

Built 1986 Load: 30.2 t ADT: 71

US 69

Good

Over: YEADER CREEK

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

Built 1984 Load: 30.3 t ADT: 32,600

NB I-35,EB I-80

Good

Over: DES MOINES RVR BIKE PATH

1.6 MI. E OF JCT. IA 28, Polk, IA

Built 1958 Load: 32.3 t ADT: 48,000

FM

Good

Over: FOURMILE CREEK

079232013, Polk, IA

Built 1981 Load: 32.3 t ADT: 6,573

US 6

Good

Over: FOUR MILE CREEK & TRAIL

1.3 MI. E OF JCT. I-235, Polk, IA

Built 2014 Load: 32.4 t ADT: 14,300

ARMY POST RD

Good

Over: NATURE TRAIL & CK

078243600, Polk, IA

Built 2015 Load: 32.4 t ADT: 121

I 35 SB

Good

Over: IAIS RR

0.2 mi. S of Grand Ave., Polk, IA

Built 2013 Load: 32.4 t ADT: 24,650

I 35 NB

Good

Over: FOUR MILE CREEK

3.1 MILES N OF JCT IA 160, Polk, IA

Built 2018 Load: 32.4 t ADT: 28,400

I 35 SB

Good

Over: FOUR MILE CREEK

3.1 MI. N OF JCT. IA 160, Polk, IA

Built 2020 Load: 32.4 t ADT: 28,400

EVERGREEN AVE

Good

Over: EASTER LAKE

078231900, Polk, IA

Built 2018 Load: 32.4 t ADT: 1,686

NE 54TH ST

Good

Over: BR OF FOUR MI CR

080240103, Polk, IA

Built 2019 Load: 32.4 t ADT: 643

NW 5TH ST

Good

Over: NORTH CREEK

080241600, Polk, IA

Built 2013 Load: 32.4 t ADT: 1,820

NW 2ND ST

Good

Over: MUD CREEK

080233601, Polk, IA

Built 2020 Load: 32.4 t ADT: 2,604

I35 NB OFF RAMP

Good

Over: IAIS RR

0.9 mi. N jct. IA 5, Polk, IA

Built 2014 Load: 32.4 t ADT: 4,330

US 65 NB

Good

Over: DESMOINES RVR S OVERFLOW

1.0 MI N OF SE 64TH AVE, Polk, IA

Built 2013 Load: 32.4 t ADT: 12,450

US 65 SB

Good

Over: DES MOINES RVR MID OVRFW

1.1 MI. N of SE 64th AVE., Polk, IA

Built 2014 Load: 32.4 t ADT: 12,450

IA 28 SB

Good

Over: RACCOON RIVER

3.7 MI. N. OF IA 5, Polk, IA

Built 2022 Load: 32.4 t ADT: 12,600

POLK CITY DRIVE

Good

Over: ROCK CREEK

080242113, Polk, IA

Built 2000 Load: 32.7 t ADT: 2,380

NE 62

Good

Over: SMALL STREAM

079230700, Polk, IA

Built 2003 Load: 32.7 t ADT: 6,038

FM

Good

Over: BRANCH FOUR MILE CREEK

079230800, Polk, IA

Built 2003 Load: 32.7 t ADT: 2,571

SE 37TH STREET

Good

Over: CREEK

079251600, Polk, IA

Built 2001 Load: 32.7 t ADT: 8,166

NW 18TH ST

Good

Over: ROCK CREEK

080241600, Polk, IA

Built 1982 Load: 32.7 t ADT: 1,649

FM

Good

Over: SKUNK RIVER OVFLW

081223006, Polk, IA

Built 1992 Load: 32.7 t ADT: 967

LOCAL ROAD

Good

Over: DRAINAGE DITCH

081232307, Polk, IA

Built 2000 Load: 32.7 t ADT: 11

LOCAL ROAD

Good

Over: OLD SKUNK R CHAN

081232401, Polk, IA

Built 1992 Load: 32.7 t ADT: 5

39TH ST

Good

Over: JORDAN CREEK

000000000, Polk, IA

Built 1974 Load: 32.7 t ADT: 2,565

50TH ST

Good

Over: JORDAN CREEK

000000000, Polk, IA

Built 2005 Load: 32.7 t ADT: 8,476

NETRILEIN DR

Good

Over: BR.FOUR MILE CREEK

080241300, Polk, IA

Built 1991 Load: 32.7 t ADT: 1,404

LINCOLN ST.

Good

Over: DRAINAGE DITCH

080223100, Polk, IA

Built 1996 Load: 32.7 t ADT: 1,190

NW 18TH STREET

Good

Over: ROCK CREEK

080241001, Polk, IA

Built 2003 Load: 32.7 t ADT: 5,613

SW STATE STREET

Good

Over: SAYLOR CREEK

080242700, Polk, IA

Built 1997 Load: 32.7 t ADT: 748

MLK JR PKWY E/W

Good

Over: RACCOON RIVER

078240801, Polk, IA

Built 2005 Load: 32.7 t ADT: 7,253

LITTLE 4 MI CRK DR

Good

Over: E FOUR MILE CREEK

078230400, Polk, IA

Built 2004 Load: 32.7 t ADT: 2,740

NORTH JAMES ST

Good

Over: TRIB LITTLE BEAVER CREEK

080253200, Polk, IA

Built 2006 Load: 32.7 t ADT: 5,988

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.