Dallas County, IA

154 public highway bridges

Dallas County Bridge Snapshot

Dallas County, Iowa contains 154 public highway bridges in the FHWA National Bridge Inventory. Roughly 50% are rated “Good,” 39% “Fair,” 7.1% “Poor,” and 7.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

154

Total Bridges

50%

Good

7.1%

Poor

7.1%

Structurally Deficient

Condition Distribution

Good

50% (77)

Fair

39% (60)

Poor

7.1% (11)

SD

7.1% (11)

All Bridges (154)

Sort:

250TH ST

Over: WALNUT CREEK

079260801, Dallas, IA

Built 2008 Load: 32.7 t ADT: 79

K AVE

Over: SMALL STREAM

081281401, Dallas, IA

Built 2009 Load: 32.7 t ADT: 229

STATE ST

Over: STREAM

080261202, Dallas, IA

Built 2003 Load: 32.7 t ADT: 1,379

SYCAMORE ST

Over: STREAM

080260101, Dallas, IA

Built 2007 Load: 32.7 t ADT: 182

BROADWAY ST

Over: STREAM

080261202, Dallas, IA

Built 1994 Load: 32.7 t ADT: 289

SOUTH 60TH ST

Over: CREEK

SOUTH 60TH ST, Dallas, IA

Built 2007 Load: 32.7 t ADT: 3,344

WATERFROD ROAD EB

Over: WALNUT CREEK

City of Urbandale. Dallas, Dallas, IA

Built 2018 Load: 32.7 t ADT: 266

EB IA 141

Over: LITTLE BEAVER CREEK

2.2 MILES W OF JCT IA 210, Dallas, IA

Built 1997 Load: 32.7 t ADT: 4,300

WATERFORD RD WB

Over: WALNUT CREEK

P40000350, Dallas, IA

Built 2007 Load: 33.2 t ADT: 266

FM

Over: BEAVER CREEK

081271604, Dallas, IA

Built 1986 Load: 33.5 t ADT: 20

BOONEVILLE RD

Over: SUGAR CREEK

City of West Des Moines, Dallas, IA

Built 2018 Load: 33.7 t ADT: 70

A AVE

Over: BRANCH MOSQUITO CREEK

079290602, Dallas, IA

Built 2015 Load: 34.3 t ADT: 15

LOCAL

Over: S RACCOON RIVER

078290327, Dallas, IA

Built 1996 Load: 34.9 t ADT: 82

FM

Over: SO RACOON RIVER

078290706, Dallas, IA

Built 2003 Load: 34.9 t ADT: 767

STATE ST

Over: OXLEY CREEK

0802612, Dallas, IA

Built 2016 Load: 36.0 t ADT: 1,379

S GRAND PRAIRIE

Over: RACCOON RIVER

West Des Moines, Dallas, IA

Built 2018 Load: 36.3 t ADT: 5

LOCAL

Over: PANTHER CREEK

078281603, Dallas, IA

Built 1989 Load: 36.9 t ADT: 110

COUNTY ROAD

Over: WALNUT CREEK

079261502, Dallas, IA

Built 1988 Load: 37.1 t ADT: 51

LOCAL

Over: BEAVER CREEK

081270702, Dallas, IA

Built 2004 Load: 37.2 t ADT: 103

COUNTY ROAD

Over: BEAVER CREEK

081272301, Dallas, IA

Built 2005 Load: 38.2 t ADT: 26

WILLIS AVE

Over: FROG CREEK

0.2 Miles West of 1st Ave, Dallas, IA

Built 2018 Load: 38.2 t ADT: 2,269

STAGECOACH DR

Over: SUGAR CREEK

City of West Des Moines, Dallas, IA

Built 2017 Load: 38.2 t ADT: 143

GRAND AVE

Over: ROLLING HILLS CREEK

.5 Mi. W. of S JC Pkwy, Dallas, IA

Built 2019 Load: 39.2 t ADT: 96

EB IA 141

Over: BEAVER CREEK

1.3 MI. E OF JCT. US 169, Dallas, IA

Built 1997 Load: 39.2 t ADT: 4,300

220TH ST

Over: MOSQUITO CREEK

080292901, Dallas, IA

Built 1991 Load: 39.6 t ADT: 41

JEWEL CIR

Over: BEAR CREEK

00000, Dallas, IA

Built 2011 Load: 40.2 t ADT: 110

FILMORE CT

Over: BEAR CREEK

078292704, Dallas, IA

Built 2015 Load: 41.1 t ADT: 91

360TH STREET

Over: JOHNSON CREEK

RRD over Johnson Creek, Dallas, IA

Built 2022 Load: 41.1 t ADT: 2,628

D AVE

Over: MOSQUITO CREEK

079291502, Dallas, IA

Built 2013 Load: 41.5 t ADT: 26

LOCAL

Over: BEAVER CREEK

080261304, Dallas, IA

Built 1982 Load: 43.7 t ADT: 154

GRAND PRAIRIE PKWY

Over: SUGAR CREEK

GPPW over Sugar Creek, Dallas, IA

Built 2016 Load: 44.4 t ADT: 5,474

BOONEVILLE RD

Over: JOHNSON CREEK

Booneville Rd over JCreek, Dallas, IA

Built 2022 Load: 44.4 t ADT: 66

GRAND AVE

Over: JOHNSON CREEK

Grand Ave o JohnsonCreek, Dallas, IA

Built 2023 Load: 45.0 t ADT: 289

COUNTRY ROAD

Over: BEAVER CREEK

081272001, Dallas, IA

Built 2003 Load: 45.4 t ADT: 26

LOCAL

Over: MERCER CREEK

078281203, Dallas, IA

Built 1974 Load: 46.3 t ADT: 62

LOCAL

Over: SLOUGH CREEK

081272801, Dallas, IA

Built 2003 Load: 48.2 t ADT: 30

COUNTY ROAD

Over: BEAVER CREEK

081272304, Dallas, IA

Built 2001 Load: 48.5 t ADT: 51

156TH ST

Over: LITTLE WALNUT CREEK

P55000600, Dallas, IA

Built 2007 Load: 49.3 t ADT: 1,257

156TH ST

Over: LITTLE WALNUT CREEK

P55000600, Dallas, IA

Built 2007 Load: 49.3 t ADT: 1,211

FM

Over: SOUTH RACCOON RIVER

078290210, Dallas, IA

Built 1981 Load: 51.2 t ADT: 170

FM

Over: BULGER CREEK

078272903, Dallas, IA

Built 1995 Load: 52.9 t ADT: 150

COUNTY ROAD

Over: MOSQUITO CREEK

079290806, Dallas, IA

Built 2002 Load: 52.9 t ADT: 51

I-80

Over: PANTHER CREEK

0.6 mi. W of SR P58 & F90, Dallas, IA

Built 1965 Load: 99.9 t ADT: 32,100

COUNTY ROAD

Over: PANTHER CREEK

079280502, Dallas, IA

Built 1964 Load: 6.9 t ADT: 35

LOCAL

Over: PANTHER CREEK

079282201, Dallas, IA

Built 1930 Load: 12.2 t ADT: 60

FM

Over: STREAM

080261101, Dallas, IA

Built 1970 Load: 22.3 t ADT: 1,544

FM

Over: OVER IAIS RR

078272003, Dallas, IA

Built 1940 Load: 23.7 t ADT: 150

COUNTY ROAD

Over: BRANCH MOSQUITO CREEK

079290803, Dallas, IA

Built 1926 Load: 23.7 t ADT: 21

LOCAL

Over: BEAR CREEK

078283205, Dallas, IA

Built 1949 Load: 24.5 t ADT: 180

LOCAL

Structurally Deficient

Over: NORTH RACCOON RIVER

A21600635, Dallas, IA

Built 1882 ADT: 153

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026