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)

OLD 24

Good

Over: MARSH DRAIN

01.00 E SR 101, Allen, IN

Built 1952 Load: 44.4 t ADT: 1,301

LIMA RD

Good

Over: WILLOW CREEK

00.10 N OF MCCOMB RD, Allen, IN

Built 2018 Load: 44.4 t ADT: 1,800

W JEFFERSON BLVD

Good

Over: FLAUGH DRAIN

00.20 W GETZ RD, Allen, IN

Built 2005 Load: 44.5 t ADT: 35,000

I-69 NB

Good

Over: ROBINSON CREEK

01.69 S US 24, Allen, IN

Built 1964 Load: 44.7 t ADT: 21,321

I-69 SB

Good

Over: ROBINSON CREEK

01.69 S US 24, Allen, IN

Built 1964 Load: 44.7 t ADT: 21,321

STATE BOULEVARD

Good

Over: BULLERMAN DRAIN

00.10 W MAYSVILLE ROAD, Allen, IN

Built 2020 Load: 44.7 t ADT: 17,750

O'DAY ROAD

Good

Over: SEEGAR DITCH

00.40 S OF COOK ROAD, Allen, IN

Built 2020 Load: 45.2 t ADT: 1,028

SR 1

Good

Over: CONRAD DITCH

06.68 N I-69, Allen, IN

Built 2023 Load: 45.7 t ADT: 4,890

US 30 EB

Good

Over: FLATROCK CREEK

00.79 E SR 101, Allen, IN

Built 1977 Load: 45.7 t ADT: 7,603

WILLOW RIDGE TRAIL

Good

Over: WILLOW CREEK

023 MI E SR3, Allen, IN

Built 2011 Load: 45.7 t ADT: 300

WEST HAMILTON RD

Good

Over: BEAL-TAYLOR DRAIN

00.30 S SR 14, Allen, IN

Built 2018 Load: 45.8 t ADT: 2,438

FRANKE RD

Good

Over: HOFFMAN LEPPER DRAIN

00.10 N MONROEVILLE RD, Allen, IN

Built 1965 Load: 46.0 t ADT: 625

SR 101

Good

Over: WANN DITCH

00.30 S SR 37, Allen, IN

Built 2001 Load: 46.3 t ADT: 1,291

HOFFMAN RD

Good

Over: HOFFMAN DRAIN

00.20 W FACKLER RD, Allen, IN

Built 1992 Load: 46.3 t ADT: 156

GERADOT RD

Good

Over: HOFFMAN DRAIN

00.30 N HOFFMAN RD, Allen, IN

Built 1989 Load: 46.4 t ADT: 104

SR 101

Good

Over: Brown Ditch

03.59 S US 30, Allen, IN

Built 1956 Load: 46.7 t ADT: 1,800

I-69 NB

Good

Over: BECKETTS RUN

01.94 S SR 1, Allen, IN

Built 1960 Load: 46.7 t ADT: 35,387

I-69 SB

Good

Over: BECKETTS RUN

01.94 S SR 1, Allen, IN

Built 1960 Load: 46.7 t ADT: 35,353

STATE LINE ROAD

Good

Over: H. O. WHITE DRAIN

00.01 S OF CASTLEMAN RD, Allen, IN

Built 2013 Load: 46.8 t ADT: 200

SUMPTER DR

Good

Over: DURNELL DRAIN

00.10 S LINCOLN PKWY, Allen, IN

Built 2004 Load: 47.4 t ADT: 100

SR 37

Good

Over: HAMM DITCH

00.80 N SR 101, Allen, IN

Built 1954 Load: 47.6 t ADT: 2,938

HILLEGAS RD

Good

Over: CSX RAILROAD

00.20 N ILLINOIS ROAD, Allen, IN

Built 2001 Load: 49.6 t ADT: 15,025

BASS RD

Good

Over: FLAUGH DRAIN

00.40 W KROEMER RD, Allen, IN

Built 2018 Load: 50.0 t ADT: 9,990

BELLE VISTA DR

Good

Over: FAIRFIELD DRAIN

00.30 W OLD TRAIL RD, Allen, IN

Built 2014 Load: 50.4 t ADT: 289

RIVER RD

Good

Over: HAMM INTERCEPTOR DRAIN

00.10 W OF STATE LINE ROA, Allen, IN

Built 2019 Load: 50.6 t ADT: 204

SR 14

Good

Over: INVERNESS POND

01.06 W I-69, Allen, IN

Built 2014 Load: 51.2 t ADT: 12,735

FLUTTER RD

Good

Over: TIERNAN DRAIN

00.13 E ST JOE/MAPLECREST, Allen, IN

Built 2015 Load: 51.8 t ADT: 3,000

GIESKING RD

Good

Over: JAMES T JOHNSON DRAIN

01.50 E US 33, Allen, IN

Built 1980 Load: 52.3 t ADT: 108

SR 1

Good

Over: MARTIN DITCH

00.63 N I-69, Allen, IN

Built 2009 Load: 52.5 t ADT: 16,275

US 33

Good

Over: BENWARD DITCH

03.24 N US 30, Allen, IN

Built 2010 Load: 52.8 t ADT: 10,901

SR 101

Good

Over: MARSH DITCH

0.67 S of US 24, Allen, IN

Built 2003 Load: 53.1 t ADT: 1,971

FOOTE ROAD

Good

Over: HAMM INTERCEPTOR DRAIN

00.20 W STATE LINE ROAD, Allen, IN

Built 2022 Load: 53.5 t ADT: 248

TERNET RD

Good

Over: ELLISON DITCH

00.05 N OF MAPLES ROAD, Allen, IN

Built 2021 Load: 53.8 t ADT: 525

SETTLERS TRAIL

Good

Over: BEIGHTLE-NETTLEHORST DTC

00.20 W AMSTUTZ ROAD, Allen, IN

Built 1997 Load: 54.5 t ADT: 244

WHEELOCK RD

Good

Over: MOWRER DRAIN

00.01 S ST JOE CENTER RD, Allen, IN

Built 2002 Load: 54.7 t ADT: 3,972

WAYNE TRACE RD

Good

Over: TRIER DRAIN

00.30 N PAULDING RD, Allen, IN

Built 2007 Load: 55.5 t ADT: 2,500

STATE BOULEVARD

Good

Over: SPY RUN CREEK

00.10 E OF WESTBROOK DR, Allen, IN

Built 2020 Load: 55.6 t ADT: 20,650

AUBURN ROAD

Good

Over: BELOT DRAIN

00.31 N. UNION CHAPEL RD., Allen, IN

Built 2020 Load: 56.2 t ADT: 5,730

ANTWERP ROAD

Good

Over: HAMM INTERCEPTOR DRAIN

00.20 W STATE LINE ROAD, Allen, IN

Built 2019 Load: 56.5 t ADT: 800

WALLEN RD

Good

Over: BENWARD MAIN

00.10 E JOHNSON, Allen, IN

Built 2002 Load: 57.2 t ADT: 433

I-69 NB

Good

Over: CEDAR CREEK

03.62 N SR 1, Allen, IN

Built 1961 Load: 59.0 t ADT: 17,602

I-69 SB

Good

Over: CEDAR CREEK

03.62 N SR 1, Allen, IN

Built 1961 Load: 59.0 t ADT: 15,755

I-469 WB OFF RAMP

Good

Over: DRAINAGE DITCH

00.01 E US 27, Allen, IN

Built 1990 Load: 59.6 t ADT: 1,991

US 24 EB

Good

Over: GAR CREEK

06.20 W SR 101, Allen, IN

Built 2010 Load: 59.9 t ADT: 8,217

US 24 WB

Good

Over: GAR CREEK

06.20 W SR 101, Allen, IN

Built 2010 Load: 59.9 t ADT: 9,394

COVERDALE RD

Good

Over: ROBINSON-BRINDLE DRAIN

00.40 S OF AIRPORT EXPWY, Allen, IN

Built 1970 Load: 61.1 t ADT: 1,431

DAWKINS RD

Good

Over: LITZENBERG DRAIN

00.01 W STATE LINE ROAD, Allen, IN

Built 2012 Load: 63.7 t ADT: 573

MONROEVILLE RD

Good

Over: HOFFMAN LEPPER DRAIN

00.10 W HOUK RD, Allen, IN

Built 2011 Load: 64.1 t ADT: 1,825

BULL RAPIDS RD

Good

Over: BLACK CREEK

00.01 S DARLING RD, Allen, IN

Built 2012 Load: 64.1 t ADT: 1,327

I-469

Good

Over: GRICE DITCH

01.04 W SR 37, Allen, IN

Built 1992 Load: 72.9 t ADT: 33,629

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

Related

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