Allen County, IN

601 public highway bridges

Allen County Bridge Snapshot

Allen County, Indiana contains 601 public highway bridges in the FHWA National Bridge Inventory. Roughly 30.3% are rated “Good,” 47.9% “Fair,” 6.8% “Poor,” and 6.8% 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 IN 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.

601
Total Bridges
30.3%
Good
6.8%
Poor
6.8%
Structurally Deficient

Condition Distribution

Good
30.3% (182)
Fair
47.9% (288)
Poor
6.8% (41)
SD
6.8% (41)

All Bridges (601)

I-69 NB

Good

Over: SPY RUN CREEK

00.42 S SR 3, Allen, IN

Built 1960 Load: 35.0 t ADT: 36,327

CARROLL RD

Good

Over: JOHNSON MAIN DRAIN

00.10 E US 33, Allen, IN

Built 2014 Load: 35.7 t ADT: 1,978

US 30 EB

Good

Over: HOFFMAN CREEK

00.65 W SR 101, Allen, IN

Built 1977 Load: 36.3 t ADT: 8,215

US 30 WB

Good

Over: HOFFMAN CREEK

00.65 W SR 101, Allen, IN

Built 1977 Load: 36.3 t ADT: 8,215

MOELLER RD

Good

Over: TRIER DRAIN

00.30 E ADAMS CENTER RD, Allen, IN

Built 2005 Load: 36.3 t ADT: 8,000

WASHINGTON CENTER

Good

Over: MUD RUN DRAIN

00.20 W RAPP RD, Allen, IN

Built 1995 Load: 36.5 t ADT: 2,709

I-69 SB

Good

Over: NS RR (INDUSTRIAL SPUR)

00.83 N US 30, Allen, IN

Built 1960 Load: 36.6 t ADT: 33,169

SHERMAN BLVD

Good

Over: SPY RUN CREEK

00.10 N OF FRANKE PARK DR, Allen, IN

Built 2007 Load: 36.6 t ADT: 7,000

ARDMORE AVE

Good

Over: JUNK DRAIN

00.10 S OF COVINGTON RD, Allen, IN

Built 1997 Load: 36.6 t ADT: 19,519

COPPERMINE PASSAGE

Good

Over: WILLOW CREEK BRANCH

0.23 MI E SR3, Allen, IN

Built 2021 Load: 36.9 t ADT: 600

HURSHTOWN RD

Good

Over: HAMM DITCH

00.10 W SR 37, Allen, IN

Built 1990 Load: 37.1 t ADT: 104

I-69 SB

Good

Over: NS RR (CHICAGO)

00.53 N SR 14, Allen, IN

Built 1960 Load: 37.3 t ADT: 31,507

AMBER RD

Good

Over: GRAHAM MCCULLOCH DRAIN

00.70 S US 24, Allen, IN

Built 1994 Load: 37.4 t ADT: 104

FEIGHNER RD

Good

Over: JACOB JOHNSON DRAIN

00.60 S YODER RD, Allen, IN

Built 2004 Load: 37.4 t ADT: 416

MCNABB RD

Good

Over: METCALF DITCH

01.25 N SR 1, Allen, IN

Built 2003 Load: 37.4 t ADT: 135

BISHOP RD

Good

Over: METCALF DITCH

01.25 N SR 1, Allen, IN

Built 2003 Load: 37.4 t ADT: 135

CUBA RD

Good

Over: OBERHOLTZER DRAIN

00.15 N GRABILL ROAD, Allen, IN

Built 2005 Load: 37.4 t ADT: 1,171

RORICK RD

Good

Over: LOMONT DRAIN

00.75 E ROUSSEY ROAD, Allen, IN

Built 2006 Load: 37.4 t ADT: 104

SR 1

Good

Over: NETTLEHORST DITCH

05.85 E I-69, Allen, IN

Built 2016 Load: 37.6 t ADT: 7,655

I-469 WB

Good

Over: CFE RR

03.81 E US 27, Allen, IN

Built 1989 Load: 37.6 t ADT: 9,884

US 27 SB

Good

Over: ST MARY'S RIVER

02.32 S SR 930, Allen, IN

Built 2011 Load: 37.6 t ADT: 27,226

WELLS ST

Good

Over: SPY RUN CREEK

00.10 N OF ELMER AVE, Allen, IN

Built 1998 Load: 37.6 t ADT: 15,025

LORTIE RD

Good

Over: GRUMMEAUX DRAIN

00.20 S PAULDING ROAD, Allen, IN

Built 1977 Load: 37.6 t ADT: 104

I-69 NB

Good

Over: NS RR (INDUSTRIAL SPUR)

00.83 N US 30, Allen, IN

Built 1960 Load: 37.9 t ADT: 34,191

MILAN CENTER RD

Good

Over: BOTTERON DRAIN

00.80 N DOTY ROAD, Allen, IN

Built 2000 Load: 38.3 t ADT: 141

NOTESTINE RD

Good

Over: GORRELL DITCH

00.30 W RUPERT ROAD, Allen, IN

Built 2022 Load: 38.6 t ADT: 677

LEESBURG RD

Good

Over: SEEGAR DRAIN

00.10 E O'DAY RD, Allen, IN

Built 2009 Load: 38.8 t ADT: 1,084

I-69 NB

Good

Over: CFE RR

00.81 N SR 14, Allen, IN

Built 1960 Load: 38.9 t ADT: 30,914

SR 3 NB

Good

Over: WILLOW CREEK

04.19 S SR 205, Allen, IN

Built 1959 Load: 39.2 t ADT: 7,596

SR 3 SB

Good

Over: WILLOW CREEK

04.19 S SR 205, Allen, IN

Built 1959 Load: 39.2 t ADT: 7,596

SR 37

Good

Over: WANN DITCH

00.38 S SR 101, Allen, IN

Built 1954 Load: 40.5 t ADT: 2,938

SWIFTS RUN

Good

Over: SWIFT MAIN DRAIN

00.20 N OF RIVEROAK DR, Allen, IN

Built 1987 Load: 40.5 t ADT: 231

TONKEL RD

Good

Over: CEDAR CREEK

00.30 N HURSH ROAD, Allen, IN

Built 1994 Load: 40.6 t ADT: 10,550

BASS RD

Good

Over: DURNELL DITCH

01.59 E SCOTT RD, Allen, IN

Built 2023 Load: 40.8 t ADT: 7,300

FACKLER RD

Good

Over: MCHENRY DRAIN

00.25 S PAULDING ROAD, Allen, IN

Built 1973 Load: 40.9 t ADT: 104

WINCHESTER RD

Good

Over: NICKELSON CREEK

00.10 E MORTON ROAD, Allen, IN

Built 1969 Load: 41.8 t ADT: 2,056

OLD MAYSVILLE RD

Good

Over: PIERSON DRAIN #2

00.10 E REED RD, Allen, IN

Built 1974 Load: 41.9 t ADT: 421

PRINE RD

Good

Over: WITZGALL #1 DRAIN

00.20 S HAMILTON RD, Allen, IN

Built 1980 Load: 41.9 t ADT: 104

S COUNTY LINE RD

Good

Over: BRANCH OF REBECCA KNIGHT

00.40 E ABOITE RD, Allen, IN

Built 1998 Load: 42.0 t ADT: 125

SR 37

Good

Over: DIETZEN CREEK

03.71 N SR 101, Allen, IN

Built 2022 Load: 42.1 t ADT: 2,685

US 24 EB

Good

Over: VILAND DITCH

02.02 E SR 101, Allen, IN

Built 2009 Load: 42.4 t ADT: 7,647

US 24 WB

Good

Over: VILAND DITCH

02.02 E SR 101, Allen, IN

Built 2009 Load: 42.4 t ADT: 7,382

BERTHAUD RD

Good

Over: LOMONT DRAIN

00.25 S BREMER ROAD, Allen, IN

Built 2005 Load: 42.5 t ADT: 156

STATE LINE ROAD

Good

Over: H. O. WHITE DRAIN

00.01 N OF HALEY ROAD, Allen, IN

Built 1993 Load: 42.5 t ADT: 573

OLD LIMA RD

Good

Over: WILLOW CREEK

00.10 N CEDAR CANYONS RD, Allen, IN

Built 2009 Load: 42.8 t ADT: 3,500

I-69 SB

Good

Over: CFE RR

00.81 N SR 14, Allen, IN

Built 1960 Load: 42.9 t ADT: 31,507

MARION CENTER RD

Good

Over: JACOB KOEHLINGER DRAIN

00.25 N I-469, Allen, IN

Built 1996 Load: 42.9 t ADT: 3,800

SR 930 EB

Good

Over: NS RR

05.36 E US 27, Allen, IN

Built 1953 Load: 43.1 t ADT: 13,980

KILLIAN RD

Good

Over: WANN DRAIN

00.63 N OF ANTWERP RD, Allen, IN

Built 2015 Load: 43.4 t ADT: 104

COVERDALE RD

Good

Over: SUTER DRAIN

00.02 N OF WINTERS WAY, Allen, IN

Built 2014 Load: 44.1 t ADT: 1,431

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