Delaware County, IA

254 public highway bridges

Delaware County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Delaware County, Iowa contains 254 public highway bridges. Roughly 38.6% are rated “Good,” 51.6% “Fair,” and 6.7% “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.

254

Total Bridges

38.6%

Good

51.6%

Fair

6.7%

Poor Condition

Condition Distribution

Good

38.6% (98)

Fair

51.6% (131)

Poor

6.7% (17)

All Bridges (254)

Sort:

BACKBONE ST PK

Over: MAQUOKETA RIVER

IN BACKBONE STATE PARK, Delaware, IA

Built 1934 Load: 22.4 t

IA 3

Over: PINE CREEK

6.9 MI.E OF JCT. IA 38, Delaware, IA

Built 1932 Load: 22.7 t ADT: 760

LOCAL LINN-DEL

Over: STREAM

087053101, Delaware, IA

Built 1975 Load: 22.7 t ADT: 59

LOCAL 137 ST

Over: SMALL STREAM

090042205, Delaware, IA

Built 1939 Load: 22.7 t ADT: 44

LOC SHERWOOD RD

Over: SMALL STREAM

088030802, Delaware, IA

Built 1970 Load: 23.0 t ADT: 49

LOC 302 ST

Over: SMALL STREAM

087031403, Delaware, IA

Built 1964 Load: 24.0 t ADT: 49

LOC 325TH ST

Over: SMALL STREAM

087042703, Delaware, IA

Built 2001 Load: 24.0 t ADT: 33

LOCAL 130 AVE

Over: SMALL STREAM

088063402, Delaware, IA

Built 1967 Load: 24.0 t ADT: 11

FM 190 AVE

Over: BUCK CREEK

087051502, Delaware, IA

Built 1969 Load: 24.3 t ADT: 157

FM 190 AVE

Over: SMALL STREAM

087050302, Delaware, IA

Built 1968 Load: 24.6 t ADT: 157

LOCAL 200 AVE

Over: SMALL STREAM

087051104, Delaware, IA

Built 1967 Load: 24.6 t ADT: 49

LOCAL 170 AVE

Over: SMALL STREAM

087051702, Delaware, IA

Built 1970 Load: 24.6 t ADT: 20

210TH AVE

Over: SMALL STREAM

087052502, Delaware, IA

Built 1994 Load: 24.6 t ADT: 11

LOCAL 145 ST

Over: BEAR CREEK

090032803, Delaware, IA

Built 1976 Load: 24.6 t ADT: 78

LOC 120TH AVE

Over: STREAM

090062804, Delaware, IA

Built 1977 Load: 24.6 t ADT: 26

LOC 150TH ST

Over: SANDHAGEN CREEK

090063201, Delaware, IA

Built 1976 Load: 24.6 t ADT: 44

LOCAL 320TH ST.

Over: SMALL STREAM

087052501, Delaware, IA

Built 1995 Load: 24.9 t ADT: 15

LOCAL 165 ST

Over: LINDSEY CREEK

089050303, Delaware, IA

Built 1983 Load: 24.9 t ADT: 59

LOCAL 165 ST

Over: HONEY CREEK

089050303, Delaware, IA

Built 1983 Load: 24.9 t ADT: 59

LOC 285 AVE

Over: SMALL STREAM

087031910, Delaware, IA

Built 1977 Load: 25.3 t ADT: 78

LOC 333RD AVE

Over: SMALL STREAM

087032508, Delaware, IA

Built 1976 Load: 25.3 t ADT: 97

LOCAL 295 ST

Over: SMALL STREAM

087051007, Delaware, IA

Built 1987 Load: 25.3 t ADT: 39

LOCAL 200 AVE

Over: SMALL STREAM

087052602, Delaware, IA

Built 1966 Load: 25.3 t ADT: 70

LOCAL 310 AVE

Over: STREAM

089032202, Delaware, IA

Built 1966 Load: 25.3 t ADT: 78

IA 13

Over: BRANCH MAQUOKETA RIVER

0.1 mi. N of N jct SR D47, Delaware, IA

Built 1975 Load: 25.4 t ADT: 4,840

FM 220 AVE

Over: SMALL

087043002, Delaware, IA

Built 1980 Load: 25.6 t ADT: 20

LOC 275TH ST

Over: STREAM

088063303, Delaware, IA

Built 1975 Load: 25.6 t ADT: 15

FM 180TH ST

Over: SMALL STREAM

089031801, Delaware, IA

Built 1978 Load: 25.6 t ADT: 69

LOC 207TH ST

Over: STREAM

089062807, Delaware, IA

Built 1977 Load: 25.6 t ADT: 29

JET RD

Over: STREAM

090051403, Delaware, IA

Built 1969 Load: 25.6 t ADT: 44

FM 110 AVE

Over: S FORK MAQUOKETA RIVER

090061702, Delaware, IA

Built 1969 Load: 25.9 t ADT: 108

FM RIDGE RD

Over: ALLISON CREEK

088042603, Delaware, IA

Built 2003 Load: 26.2 t ADT: 44

FM 270 AVE

Over: SMALL STREAM

089041302, Delaware, IA

Built 1970 Load: 26.3 t ADT: 275

FM 195 ST

Over: MAQUOKETA RIVER

089051903, Delaware, IA

Built 1969 Load: 26.6 t ADT: 835

LOC CANDLE RD

Over: PRAIRIE CREEK

089062805, Delaware, IA

Built 1950 Load: 27.2 t ADT: 59

IA 3

Over: LINDSEY CREEK

1.3 MI. E OF E Jct. IA 13, Delaware, IA

Built 1979 Load: 27.8 t ADT: 2,070

LOC 215TH ST

Over: STREAM

089063105, Delaware, IA

Built 1940 Load: 27.8 t ADT: 39

OAK RD

Over: STREAM

090041603, Delaware, IA

Built 1978 Load: 28.8 t ADT: 59

LOC IVY RD

Over: BR LITTLE YORK

090050903, Delaware, IA

Built 1951 Load: 28.8 t ADT: 34

LOC STAGECOACH

Over: PRAIRIE CREEK

089062707, Delaware, IA

Built 1949 Load: 29.0 t ADT: 97

205 AVE

Over: SPRING CREEK

089053504, Delaware, IA

Built 1975 Load: 29.8 t ADT: 295

205 AVE

Over: SPRING CREEK

089053504, Delaware, IA

Built 1975 Load: 29.9 t ADT: 295

205 AVE

Over: SPRING CREEK

089053504, Delaware, IA

Built 1975 Load: 29.9 t ADT: 295

FM 270 AVE

Over: PLUM CREEK

089042402, Delaware, IA

Built 1969 Load: 29.9 t ADT: 275

FM 110 AVE

Over: PRAIRIE CREEK

089062906, Delaware, IA

Built 1986 Load: 29.9 t ADT: 206

FM 315TH ST

Over: LIME CREEK

087042008, Delaware, IA

Built 1978 Load: 30.2 t ADT: 530

LOCAL

Over: BUCK CREEK

087051602, Delaware, IA

Built 1983 Load: 30.2 t ADT: 70

EB US 20

Over: OVER CC RR

0.9 MI. E OF JCT. IA 13, Delaware, IA

Built 1971 Load: 30.2 t ADT: 3,850

FM 150 ST

Over: HONEY CREEK

090053501, Delaware, IA

Built 1949 Load: 30.5 t ADT: 363

NATURE RD

Over: SMALL STREAM

090040904, Delaware, IA

Built 1940 Load: 30.6 t ADT: 26

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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