Decatur County, IN

141 public highway bridges

Decatur County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Decatur County, Indiana contains 141 public highway bridges. Roughly 36.9% are rated “Good,” 50.4% “Fair,” and 5% “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.

141
Total Bridges
36.9%
Good
50.4%
Fair
5%
Poor Condition

Condition Distribution

Good
36.9% (52)
Fair
50.4% (71)
Poor
5% (7)

All Bridges (141)

SR 3

Unknown

Over: I-74 WB

01.53 N US 421, Decatur, IN

Built 1962 ADT: 8,249

CR 700 NORTH

Unknown

Over: I-74 WB

06.68 W US 421, Decatur, IN

Built 1961 ADT: 10,341

CR 420W

Unknown

Over: I-74 WB

03.75 W US 421, Decatur, IN

Built 1961 ADT: 10,341

CR 100W

Unknown

Over: I-74 WB

01.03 W SR 3, Decatur, IN

Built 1961 ADT: 9,256

CR NE 80

Unknown

Over: I-74 WB

02.08 E SR 3, Decatur, IN

Built 1961 ADT: 9,014

BASE ROAD

Unknown

Over: I-74 EB

03.98 E SR 3, Decatur, IN

Built 1961 ADT: 9,256

CR 600E

Unknown

Over: I-74 EB

06.83 E SR 3, Decatur, IN

Built 1961 ADT: 9,256

NEW POINT-ROSSB RD

Unknown

Over: I-74 EB

06.02 W SR 229, Decatur, IN

Built 1962 ADT: 9,256

CR 250 N

Unknown

Over: FRONTAGE ROAD

01.20 W US 421, Decatur, IN

Built 2008 ADT: 20

I-74 WB

Unknown

Over: US 421 SB

01.42 N SR 3, Decatur, IN

Built 2008 ADT: 10,341

I-74 EB

Unknown

Over: US 421 NB

01.42 N SR 3, Decatur, IN

Built 2008 ADT: 10,341

LAYTON DR

Fair

Over: SAND CREEK

00.10 NW OF CR 1100 S, Decatur, IN

Built 1880 Load: 4.5 t ADT: 30

CR 580W

Fair

Over: WYALOOSING CREEK

00.10 S OF CR 950 S, Decatur, IN

Built 1984 Load: 16.3 t ADT: 70

I-74 EB

Fair

Over: FLATROCK RIVER

05.05 W US 421, Decatur, IN

Built 1961 Load: 23.3 t ADT: 11,343

I-74 WB

Fair

Over: FLATROCK RIVER

05.05 W US 421, Decatur, IN

Built 1961 Load: 23.7 t ADT: 11,343

SR 3

Fair

Over: CLIFTY CREEK

04.28 N I-74, Decatur, IN

Built 1983 Load: 25.3 t ADT: 4,809

CR 850E

Fair

Over: TRIBUTARY TO TUB CREEK

00.60 N OF CR 300 S, Decatur, IN

Built 2004 Load: 25.6 t ADT: 360

CR 550N

Fair

Over: RIGHTHAND FORK-SALT CR

00.10 N OF CR 880 E, Decatur, IN

Built 1984 Load: 25.7 t ADT: 280

CR 400S

Fair

Over: VERNON FK MUSCATATUCK R

00.00 W OF CR 500 E, Decatur, IN

Built 1955 Load: 25.8 t ADT: 140

CR 100W

Fair

Over: TRIBUTARY TO COBBS FORK

00.90 S OF CR 500 S, Decatur, IN

Built 1996 Load: 26.3 t ADT: 30

CR 450W

Fair

Over: BUCK RUN

00.20 N OF CR 240 NW, Decatur, IN

Built 2000 Load: 26.7 t ADT: 190

POPLAR ST

Fair

Over: MILLSTONE CREEK

00.00 S OF SOUTH ST, Decatur, IN

Built 1997 Load: 27.0 t ADT: 280

I-74 WBL

Fair

Over: CLIFTY CREEK

02.52 W US 421, Decatur, IN

Built 1962 Load: 27.2 t ADT: 11,344

CR 400S

Fair

Over: SAND CREEK

00.10 W OF SW 60, Decatur, IN

Built 1890 Load: 27.8 t ADT: 180

I-74 WB

Fair

Over: MUDDY FORK SAND CREEK

00.44 E US 421, Decatur, IN

Built 1961 Load: 28.5 t ADT: 8,250

CR 1000S

Fair

Over: PENTHER CREEK

00.70 E OF SW 60, Decatur, IN

Built 1965 Load: 28.8 t ADT: 460

BASE RD

Fair

Over: PENTHER CREEK

00.20 N OF CR 900 S, Decatur, IN

Built 1932 Load: 29.8 t ADT: 180

CR 250S

Fair

Over: BRANCH MUDDY FORK SAND

00.00 W OF CR 220 SW, Decatur, IN

Built 2000 Load: 30.1 t ADT: 140

CR 300S

Fair

Over: VERNON FK MUSCATATUCK R

00.10 W OF CR 550 E, Decatur, IN

Built 1995 Load: 30.9 t ADT: 140

US 421

Fair

Over: COBBS FORK SAND CREEK

04.43 S SR 46, Decatur, IN

Built 1986 Load: 31.1 t ADT: 4,600

CR 640N

Fair

Over: MIDDLE FORK CLIFTY CREEK

00.40 W OF CR 400 E, Decatur, IN

Built 2000 Load: 31.8 t ADT: 230

CR 600S

Fair

Over: FORK OF LAUGHERY CREEK

00.10 E OF CR 700 E, Decatur, IN

Built 1997 Load: 32.0 t ADT: 130

CR 200S

Fair

Over: COBB FORK SAND CREEK

00.20 E OF CR 400 E, Decatur, IN

Built 1940 Load: 32.7 t ADT: 210

CR 300N

Fair

Over: CLIFTY CREEK

00.03 NW OF CR 500 W, Decatur, IN

Built 2012 Load: 32.7 t ADT: 200

CR 100W

Fair

Over: MUDDY FORK OF SAND CREEK

00.40 N OF CR 200 N, Decatur, IN

Built 1899 Load: 32.7 t ADT: 210

CR 300N

Fair

Over: FORK OF SALT CREEK

00.30 E OF CR 850 E, Decatur, IN

Built 1965 Load: 32.7 t ADT: 390

CR 250E

Fair

Over: SQUARE RUN

00.60 N OF CR 820 S, Decatur, IN

Built 1899 Load: 32.7 t ADT: 280

CR 820S

Fair

Over: VERNON FK MUSCATATUCK R

00.90 E OF CR 250 E, Decatur, IN

Built 1895 Load: 32.7 t ADT: 570

CR 480E

Fair

Over: VERNON FK MUSCATATUCK R

00.30 S OF CR 500 S, Decatur, IN

Built 1890 Load: 32.7 t ADT: 140

CR 220SW

Fair

Over: MUDDY FORK OF SAND CREEK

00.20 N OF CR 400 S, Decatur, IN

Built 1890 Load: 32.7 t ADT: 140

CR 400S

Fair

Over: MUDDY FORK OF SAND CREEK

00.00 E OF CR 220 SW, Decatur, IN

Built 1899 Load: 32.7 t ADT: 210

CR 550W

Fair

Over: FALL FORK CLIFTY CREEK

00.00 N OF SR 46, Decatur, IN

Built 1920 Load: 32.7 t ADT: 210

CR 350W

Fair

Over: FALL FORK CLIFTY CREEK

00.30 N OF SR 46, Decatur, IN

Built 1994 Load: 32.7 t ADT: 250

CR 450W

Fair

Over: FALL FORK CLIFTY CREEK

00.00 N OF SR 46, Decatur, IN

Built 1925 Load: 32.7 t ADT: 210

CR 100S

Fair

Over: CLIFTY CREEK

00.00 W OF CR 1050 W, Decatur, IN

Built 1890 Load: 32.7 t ADT: 140

CR 850 W

Fair

Over: BR FALL FORK CLIFTY CREE

00.50 NW OF CR 480 S, Decatur, IN

Built 1925 Load: 32.7 t ADT: 140

CR 480 S

Fair

Over: BR FALL FORK CLIFTY CREE

00.00 W OF CR 700 W, Decatur, IN

Built 1885 Load: 32.7 t ADT: 130

CR 150E

Fair

Over: JORDAN CREEK

00.10 N OF CR 650 S, Decatur, IN

Built 1890 Load: 32.7 t ADT: 110

CR 240NW

Fair

Over: POND BRANCH

00.00 E OF CR 700 W, Decatur, IN

Built 1975 Load: 32.7 t ADT: 320

CR 1250S

Fair

Over: MILLSTONE CREEK

00.20 W OF CR 500 W, Decatur, IN

Built 2011 Load: 32.7 t ADT: 110
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.