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)

N PARK ST

Good

Over: LITTLE BEAVER CREEK

080252900, Polk, IA

Built 2007 Load: 32.7 t ADT: 288

SE 9TH ST

Good

Over: CRAWFORD CREEK

078241000, Polk, IA

Built 2010 Load: 32.7 t ADT: 465

E OVID AVENUE

Good

Over: 7TH WARD DITCH

079233000, Polk, IA

Built 1996 Load: 32.7 t ADT: 1,823

SW MAGAZINE RD

Good

Over: SAYLOR CREEK

080242701, Polk, IA

Built 2008 Load: 32.7 t ADT: 89

SW PRAIRIE TRL

Good

Over: SAYLOR CREEK

080242600, Polk, IA

Built 2013 Load: 32.7 t ADT: 344

N MAIN ST

Good

Over: CREEK

080253200, Polk, IA

Built 2002 Load: 32.7 t ADT: 143

64TH ST

Good

Over: DRAINAGE

T78N, R26W, S13, DAL CO, Polk, IA

Built 2009 Load: 32.7 t ADT: 43

IA 5 RAMP C NB

Good

Over: DRAINAGE

1.0 MILE S OF I-35 JUNCT, Polk, IA

Built 2000 Load: 32.7 t ADT: 1,220

I 35 NB

Good

Over: OVER UP RR

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

Built 2002 Load: 32.7 t ADT: 45,700

E UNIVERSITY

Good

Over: SMALL CREEK

078230600, Polk, IA

Built 2003 Load: 32.7 t ADT: 27,200

CHAYSE ST SW

Good

Over: DITCH NUMBER 2

080233600, Polk, IA

Built 2021 Load: 33.0 t ADT: 14

SB US 65

Good

Over: OVER UP RR

1.9 MILES N OF N JCT IA 5, Polk, IA

Built 1997 Load: 33.1 t ADT: 12,450

60TH ST

Good

Over: JORDON CREEK

P60800590, Polk, IA

Built 1992 Load: 33.3 t ADT: 13,750

IA 415

Good

Over: DRAINAGE DITCH

0.5 MI. S OF JCT. IA 160, Polk, IA

Built 1983 Load: 33.7 t ADT: 27,000

NE 3RD ST

Good

Over: CREEK

0.13 Mi. N. of NE 6 Ave., Polk, IA

Built 2020 Load: 34.0 t ADT: 2,521

NE 118TH AVE

Good

Over: BRANCH SKUNK RIVER

080220301, Polk, IA

Built 2000 Load: 34.0 t ADT: 45

NW 134TH AVE

Good

Over: FOUR MILE CREEK

0.2 mi E of NW 2nd St, Polk, IA

Built 2021 Load: 34.0 t ADT: 180

142ND ST

Good

Over: WALNUT CREEK

O57000543, Polk, IA

Built 2006 Load: 34.0 t ADT: 3,538

NE 102ND AVE

Good

Over: DRAINAGE DITCH NO 38

080221401, Polk, IA

Built 2016 Load: 34.3 t ADT: 459

NE SANTIAGO DR

Good

Over: CREEK

080222111, Polk, IA

Built 2017 Load: 34.3 t ADT: 300

LOCAL RD

Good

Over: FOUR MILE CREEK

080231800, Polk, IA

Built 1991 Load: 34.3 t ADT: 7,530

NORTH JAMES ST

Good

Over: LITTLE BEAVER CREEK

080252902, Polk, IA

Built 2017 Load: 34.3 t ADT: 1,534

LOCAL

Good

Over: BR OF CAMP CREEK

079221003, Polk, IA

Built 1993 Load: 34.4 t ADT: 468

FM NE 118TH

Good

Over: SKUNK RIVER

080220505, Polk, IA

Built 1992 Load: 34.6 t ADT: 45

F34 NE 94TH AVE

Good

Over: DD #38

Polk County, Polk, IA

Built 2019 Load: 34.7 t ADT: 417

S14 NE YODER DR

Good

Over: DRAINAGE DITCH

.1 Mi. N. of NE 126th St, Polk, IA

Built 2020 Load: 34.7 t ADT: 967

NW 62ND AVE WB

Good

Over: BEAVER CREEK

000000000, Polk, IA

Built 2012 Load: 34.9 t ADT: 1,941

FM

Good

Over: MUD CREEK

078222201, Polk, IA

Built 1990 Load: 35.6 t ADT: 358

FM

Good

Over: SAYLOR CREEK

079240338, Polk, IA

Built 2003 Load: 35.6 t ADT: 3,835

FM

Good

Over: DRAINAGE DITCH

079240421, Polk, IA

Built 2005 Load: 35.7 t ADT: 3,755

FM

Good

Over: CREEK

079241501, Polk, IA

Built 2003 Load: 35.9 t ADT: 956

NE 47TH STREET

Good

Over: FOUR MILE CREEK

080240100, Polk, IA

Built 2006 Load: 35.9 t ADT: 89

I 35

Good

Over: OTTER CREEK

1.8 MI. S OF NE 126TH AVE, Polk, IA

Built 2012 Load: 36.0 t ADT: 47,500

SE 20TH AVE

Good

Over: BRANCH MUD CREEK

078221603, Polk, IA

Built 2013 Load: 36.0 t ADT: 60

NE 24TH COURT

Good

Over: FOUR MILE CREEK

NE 24th Ct over 4 Mile Cr, Polk, IA

Built 2017 Load: 36.0 t ADT: 150

NE 54TH AVE

Good

Over: MUD CREEK

079221701, Polk, IA

Built 2011 Load: 36.2 t ADT: 548

NW 100TH STREET

Good

Over: LITTLE BEAVER CREEK

0.1 MI. S. OF NW 82ND AVE, Polk, IA

Built 2017 Load: 36.6 t ADT: 230

I 80 WB OFF RAMP

Good

Over: DRAINAGE

0.2 MILES E OF US 69, Polk, IA

Built 1999 Load: 36.6 t ADT: 4,080

LOCAL ROAD

Good

Over: BRANCH FOUR MILE CREEK

081240402, Polk, IA

Built 1999 Load: 36.9 t ADT: 60

LOCAL

Good

Over: SMALL STREAM

081241402, Polk, IA

Built 1995 Load: 36.9 t ADT: 45

FM

Good

Over: MUD CREEK

078220903, Polk, IA

Built 1990 Load: 37.2 t ADT: 159

FM 158TH

Good

Over: LITTLE CREEK

081250801, Polk, IA

Built 1990 Load: 37.2 t ADT: 170

SB US 65

Good

Over: OVER 4 MI. CK & IAIS RR

2.9 MILES S OF JCT I-80, Polk, IA

Built 1994 Load: 37.5 t ADT: 14,300

2ND AVE

Good

Over: BIRDLAND DR

079243502, Polk, IA

Built 2023 Load: 37.6 t ADT: 17,517

NB US 65

Good

Over: OVER UP RR

1.9 MI. N OF N JCT. IA 5, Polk, IA

Built 1997 Load: 37.6 t ADT: 12,450

FM

Good

Over: MUD CREEK

079222901, Polk, IA

Built 1986 Load: 38.4 t ADT: 278

W 1ST STREET

Good

Over: ROCK CREEK

080242105, Polk, IA

Built 2007 Load: 38.8 t ADT: 4,709

I-80 EB RAMP D

Good

Over: DRAINAGE

0.2 MILE EAST OF US 69, Polk, IA

Built 1999 Load: 38.9 t ADT: 2,300

NW 13TH ST

Good

Over: ROCK CREEK

080241601, Polk, IA

Built 2016 Load: 40.2 t ADT: 95

GRAND AVE

Good

Over: JORDAN CREEK

City of West Des Moines, Polk, IA

Built 2015 Load: 40.2 t ADT: 3,865

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.