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:

P 58 L AVE

Over: I-80

AT JUNCTION SR F90 & I-80, Dallas, IA

Built 1966 ADT: 30,000

OLD PORTLAND RD

Over: I-80

2.0 MI. E OF JCT. 169, Dallas, IA

Built 1966 ADT: 36,300

JORDAN CREEK PKWY

Over: I-80

1.6 mi. W of W Jct. I-35, Dallas, IA

Built 2001 ADT: 42,900

IA 210

Over: IA 141

AT JCT. OF IA #141, Dallas, IA

Built 1997 ADT: 7,100

EB IA 141

Over: US 169

AT JUNCTION OF US 169, Dallas, IA

Built 1978 ADT: 1,720

WB IA 141

Over: US 169

AT JUNCTION OF US 169, Dallas, IA

Built 1978 ADT: 1,720

COUNTY ROAD

Over: BRANCH PANTHER CREEK

080283303, Dallas, IA

Built 1925 Load: 14.1 t ADT: 72

LOCAL

Over: BR N RACCOON

079272103, Dallas, IA

Built 1935 Load: 15.1 t ADT: 113

280TH ST

Over: PANTHER CREEK

079282703, Dallas, IA

Built 1968 Load: 16.2 t ADT: 500

FM

Over: BR NORTH RACCOON RIVER

081290504, Dallas, IA

Built 1934 Load: 16.9 t ADT: 20

LOCAL

Over: CREEK

078263104, Dallas, IA

Built 1935 Load: 17.0 t ADT: 300

I AVE

Over: CREEK

081282802, Dallas, IA

Built 1910 Load: 17.0 t ADT: 35

COUNTY ROAD

Over: PANTHER CREEK

079283401, Dallas, IA

Built 1953 Load: 17.8 t ADT: 60

COUNTY ROAD

Over: BRANCH PANTHER CREEK

079280903, Dallas, IA

Built 1925 Load: 19.4 t ADT: 21

FM

Over: SLOUGH

081272702, Dallas, IA

Built 1928 Load: 20.0 t ADT: 20

LOCAL

Over: SLOUGH

080270301, Dallas, IA

Built 1925 Load: 20.3 t ADT: 35

COUNTY ROAD

Over: MIDDLE RACCOON RIVER

079293006, Dallas, IA

Built 1975 Load: 20.4 t ADT: 62

COUNTY ROAD

Over: LITTLE BEAVER CREEK

081271104, Dallas, IA

Built 1956 Load: 21.9 t ADT: 41

LOCAL

Over: BR PANTHER CREEK

080292402, Dallas, IA

Built 1981 Load: 24.5 t ADT: 62

LOCAL

Over: ROYER CREEK

080260302, Dallas, IA

Built 1953 Load: 25.6 t ADT: 21

LOCAL

Over: SUGAR CREEK

078261608, Dallas, IA

Built 1978 Load: 26.0 t ADT: 72

COUNTY ROAD

Over: PANTHER CREEK

079280904, Dallas, IA

Built 1961 Load: 26.0 t ADT: 46

FM

Over: BEAVER CREEK

081270904, Dallas, IA

Built 1962 Load: 26.2 t ADT: 488

O CIRCLE

Over: HICKORY CREEK

079271703, Dallas, IA

Built 1941 Load: 26.8 t ADT: 21

COUNTY ROAD

Over: BRANCH PANTHER CREEK

079282702, Dallas, IA

Built 1948 Load: 26.8 t ADT: 62

COUNTY ROAD

Over: BRANCH PANTHER CREEK

080293601, Dallas, IA

Built 1917 Load: 26.8 t ADT: 41

FM

Over: MOSQUITO CREEK

079291503, Dallas, IA

Built 1951 Load: 28.2 t ADT: 278

FM

Over: BEAVER CREEK

081262904, Dallas, IA

Built 1971 Load: 28.2 t ADT: 490

IA 141

Over: DRAINAGE DITCH

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

Built 1978 Load: 28.2 t ADT: 9,400

LOCAL

Over: BEAVER CREEK

081263302, Dallas, IA

Built 1985 Load: 28.5 t ADT: 26

COUNTY ROAD

Over: BRANCH BEAVER CREEK

080260402, Dallas, IA

Built 1920 Load: 28.9 t ADT: 46

FM

Over: FROG CREEK

081280903, Dallas, IA

Built 1920 Load: 29.1 t ADT: 428

FM

Over: WALNUT CREEK

079260902, Dallas, IA

Built 1969 Load: 29.4 t ADT: 1,246

IA 141

Over: DRAINAGE

0.3 MILE W OF JCT. IA 17, Dallas, IA

Built 1973 Load: 29.5 t ADT: 11,100

FM

Over: BEAVER CREEK

081281103, Dallas, IA

Built 1979 Load: 30.2 t ADT: 210

LOCAL

Over: JIM CREEK

078293106, Dallas, IA

Built 1917 Load: 30.7 t ADT: 20

FM

Over: CREEK

080271103, Dallas, IA

Built 1969 Load: 30.8 t ADT: 399

FM

Over: BR NORTH RACCOON RIVER

081290403, Dallas, IA

Built 1915 Load: 30.9 t ADT: 40

LOCAL

Over: CREEK

080270202, Dallas, IA

Built 1925 Load: 31.2 t ADT: 35

COUNTY ROAD

Over: SLOUGH CREEK

080271403, Dallas, IA

Built 1927 Load: 31.2 t ADT: 26

COUNTY ROAD

Over: PANTHER CREEK

080283102, Dallas, IA

Built 1935 Load: 31.2 t ADT: 21

FM

Over: PANTHER CREEK

080292301, Dallas, IA

Built 1967 Load: 31.4 t ADT: 170

EB I-80

Over: NORTH RACCOON RIVER

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

Built 1966 Load: 31.7 t ADT: 18,750

WB I-80

Over: NORTH RACCOON RIVER

2.3 MI. E OF JCT. 169, Dallas, IA

Built 1966 Load: 31.7 t ADT: 18,750

R 30 (W AVE)

Over: WALNUT CREEK

079261104, Dallas, IA

Built 1975 Load: 32.7 t ADT: 3,018

W AVE

Over: LITTLE WALNUT CREEK

079262300, Dallas, IA

Built 1975 Load: 32.7 t ADT: 3,612

FM

Over: TRIB. TO SUGAR CREEK

078260502, Dallas, IA

Built 2000 Load: 32.7 t ADT: 3,636

UTICA TRAIL

Over: TRIB OF RACCOON RIVER

078263105, Dallas, IA

Built 1994 Load: 32.7 t ADT: 289

68TH STREET

Over: CREEK

O54200475, Dallas, IA

Built 2003 Load: 32.7 t ADT: 1,216

BROOKVIEW LN

Over: DD

078272700, Dallas, IA

Built 2004 Load: 32.7 t ADT: 58

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 5, 2026