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:

2ND AVE

Over: I-235

4.4 MILES E OF JCT IA 28, Polk, IA

Built 2003 ADT: 89,000

I-235

Over: DES MOINES RIVER AND RDS

4.6 MILES E OF JCT IA 28, Polk, IA

Built 1962 ADT: 2,531

2ND AVE EB RAMP

Over: WEST RIVER DRIVE

1.0 mile West of US 69, Polk, IA

Built 2003 ADT: 900

PENN AVE

Over: I-235

5.0 mi. E of Jct. IA 28, Polk, IA

Built 2002 ADT: 80,600

EB I-235

Over: NB US 69/E 15TH ST

AT JUNCTION WITH US 69, Polk, IA

Built 2004 ADT: 8,250

EB I-235

Over: UNIVERSITY AVE

0.6 MI E OF JCT US 69 NB, Polk, IA

Built 2005 ADT: 4,850

EB I-235

Over: E 21ST STREET

0.3 mi. E of Jct. IA #163, Polk, IA

Built 2005 ADT: 3,300

EB I-235

Over: GUTHRIE AVE

1.2 MILES E OF JCT IA 163, Polk, IA

Built 2006 ADT: 3,000

I 235 EB

Over: HULL AVE

0.4 MILE S OF JCT US 6, Polk, IA

Built 2005 ADT: 840

EB I-235

Over: NE 46 AVE

0.5 MILE S OF I-35/80 JCT, Polk, IA

Built 1967 ADT: 4,200

WB I-235

Over: NE 46TH AVE

0.5 MI S OF E JCT I-35/80, Polk, IA

Built 1967 ADT: 4,200

IA 415

Over: IA 141

AT JUNCTION WITH IA 141, Polk, IA

Built 2003 ADT: 18,500

WESTOWN PARKWAY

Over: I-80/I-35

0.2 mi. E of I-235, Polk, IA

Built 1997 ADT: 14,400

US 6

Over: I-235

At Jct. I-235, Polk, IA

Built 2003 ADT: 3,580

19TH ST RAMP

Over: KEO WAY

3.6 MILES E OF JCT IA 28, Polk, IA

Built 2004 ADT: 4,460

GRAND AVENUE

Over: MLK PKWY

078240800, Polk, IA

Built 2004 ADT: 18,400

MLK JR PKWY N

Over: RACOON RIVER, FLEUR, RR

000000000, Polk, IA

Built 2004 ADT: 1,550

MLK JR PKWY S

Over: RACOON RIVER, FLEUR, RR

078240800, Polk, IA

Built 2004 ADT: 1,550

MLK JR PKWY E/W

Over: NB FLEUR RAMP

078240800, Polk, IA

Built 2004 ADT: 3,000

NW BEAVERBROOK BLV

Over: LITTLE BEAVER CREEK TRIB

080253200, Polk, IA

Built 2018 ADT: 589

NB US 65

Over: I-80

AT WEST JUNCTION I-80, Polk, IA

Built 1992 ADT: 30,200

SB US 65

Over: I-80

AT WEST JUNCTION OF I-80, Polk, IA

Built 1992 ADT: 30,200

SB US 65

Over: US 6

1.0 MILE S OF JCT. I-80, Polk, IA

Built 1993 ADT: 3,850

NB US 65

Over: US 6

1.0 MILE S OF JCT I-80, Polk, IA

Built 1993 ADT: 3,850

SB US 65

Over: IA 163

AT JUNCTION OF IA 163, Polk, IA

Built 1993 ADT: 11,850

NB US 65

Over: IA 163

AT JUNCTION OF IOWA 163, Polk, IA

Built 1993 ADT: 11,850

WB I-235

Over: 15TH STREET

AT JUNCTION WITH US 69, Polk, IA

Built 2005 ADT: 8,250

NE 56TH ST

Over: US 65

2.1 MI. S OF JCT. I-80, Polk, IA

Built 1994 ADT: 28,500

US 65 NB

Over: NE 27TH AVE & BIKE PATH

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

Built 1994 ADT: 1,285

US 65 SB

Over: NE 27TH AVE & BIKE PATH

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

Built 1994 ADT: 1,285

US 65 NB

Over: NE 46TH AVE

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

Built 1994 ADT: 4,200

SB US 65

Over: NE 46TH AVE

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

Built 1994 ADT: 4,200

SB US 65

Over: SE 38TH ST

0.8 MILE S OF N JCT IA 5, Polk, IA

Built 1997 ADT: 105

NB US 65

Over: SE 38TH ST

0.8 MILE S OF N JCT IA 5, Polk, IA

Built 1997 ADT: 105

EB/SB IA 141

Over: IA 44

AT JUNCTION IOWA 44, Polk, IA

Built 1974 ADT: 7,000

WB/NB IA 141

Over: IA 44

AT JUNCTION IOWA 44, Polk, IA

Built 1974 ADT: 7,000

EB IA 141

Over: IA 17

AT JUNCTION IOWA 17, Polk, IA

Built 1974 ADT: 140

WB IA 141

Over: IA 17

AT JUNCTION IOWA 17, Polk, IA

Built 1974 ADT: 140

NB RAMP TO UNIV

Over: RAMP H

1.0 MILE E OF W JCT I-35, Polk, IA

Built 1984 ADT: 24,100

US 65 NB

Over: IA 5

AT N JCT. OF IA 5, Polk, IA

Built 1997 ADT: 4,200

SB US 65

Over: IA 5

AT N JCT. OF IA 5, Polk, IA

Built 1997 ADT: 2,020

NB US 65

Over: SE 64TH AVE

1.0 MILE N OF N JCT IA 5, Polk, IA

Built 1997 ADT: 2,710

SB US 65

Over: SE 64TH AVE

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

Built 1997 ADT: 2,710

US 65 NB

Over: VANDALIA ROAD & BNSF RR

2.4 MILES S OF JCT IA 163, Polk, IA

Built 1997 ADT: 1,270

US 65 SB

Over: VANDALIA ROAD & BNSF RR

2.4 MILES S OF JCT IA 163, Polk, IA

Built 1997 ADT: 1,270

NB US 65

Over: VANDALIA RD (BP)

2.1 MILES S OF JCT IA 163, Polk, IA

Built 1997 ADT: 1,530

SB US 65

Over: VANDALIA RD (BP)

2.1 MILES S OF JCT IA 163, Polk, IA

Built 1997 ADT: 1,530

US 65 NB

Over: SE 6TH AVE

1.3 MI. S OF JCT. IA 163, Polk, IA

Built 1997 ADT: 825

US 65 SB

Over: SE 6TH AVE

1.3 MILES S OF JCT IA 163, Polk, IA

Built 1997 ADT: 825

NB US 65

Over: EAST OAKWOOD DRIVE

0.4 MILE S OF JCT IA 163, Polk, IA

Built 1997 ADT: 1,010

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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