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)

BROOKWOOD DR

Fair

Over: TRIER DRAIN

00.10 N OF COURTNEY DR, Allen, IN

Built 1965 Load: 53.2 t ADT: 579

DODANE RD

Fair

Over: SNYDER DRAIN

00.60 E WINCHESTER ROAD, Allen, IN

Built 1978 Load: 53.5 t ADT: 104

HATHAWAY RD

Fair

Over: GELLER DITCH

00.10 E BETHEL RD, Allen, IN

Built 1993 Load: 53.7 t ADT: 867

TRAMMEL ROAD

Fair

Over: BLACK CREEK

0.37 MI NW ANTWERP RD, Allen, IN

Built 1970 Load: 54.8 t ADT: 1,500

ANTHONY BLVD

Fair

Over: MAUMEE RIVER

00.10 N E BERRY ST, Allen, IN

Built 1898 Load: 56.2 t ADT: 19,025

LUDWIG RD

Fair

Over: SPY RUN CREEK

00.10 E WALKER RD, Allen, IN

Built 1994 Load: 57.2 t ADT: 9,000

AUBURN RD

Fair

Over: CEDAR CREEK

00.10 E CEDAR CANYONS RD, Allen, IN

Built 1983 Load: 57.6 t ADT: 1,327

TAYLOR ST

Fair

Over: ST MARYS RIVER

00.10 W OF PAULINE ST, Allen, IN

Built 1950 Load: 57.8 t ADT: 15,025

CARROLL RD

Fair

Over: EEL RIVER

01.00 E US 33, Allen, IN

Built 1969 Load: 59.1 t ADT: 1,950

GRISAMER RD

Fair

Over: JAMES T JOHNSON DRAIN

00.50 E FELGER RD, Allen, IN

Built 1971 Load: 60.0 t ADT: 108

PUTT LN

Fair

Over: BULLERMAN DRAIN

00.10 N ELMBROOK DR, Allen, IN

Built 1974 Load: 61.6 t ADT: 132

HOUK RD

Fair

Over: HOFFMAN LEPPER DRAIN

00.20 S MONROEVILLE RD, Allen, IN

Built 1970 Load: 62.2 t ADT: 416

ST JOE CENTER RD

Fair

Over: MOWRER DRAIN

00.01 W WHEELOCK ROAD, Allen, IN

Built 2002 Load: 63.0 t ADT: 9,275

YODER RD

Fair

Over: REBECCA KNIGHT DRAIN

00.70 W ABOITE RD, Allen, IN

Built 1987 Load: 65.2 t ADT: 200

LIMA RD

Fair

Over: BRANCH OF WILLOW CREEK

00.08 N OF LIMA PLANK PKW, Allen, IN

Built 1977 Load: 68.1 t ADT: 5,525

O'DAY RD

Fair

Over: SEEGAR DRAIN

00.90 N ARCOLA ROAD, Allen, IN

Built 1980 Load: 77.0 t ADT: 867

BERTHAUD RD

Fair

Over: BANDELIER #3 DRAIN

00.32 N HARPER ROAD, Allen, IN

Built 1980 Load: 83.9 t ADT: 104

LAKEVIEW DR

Fair

Over: CEDARVILLE RESERVOIR TRI

00.15 E CHERRY STREET, Allen, IN

Built 1972 Load: 85.5 t ADT: 208

I-469

Fair

Over: SCHMIDT DITCH

02.47 W US 30, Allen, IN

Built 1989 Load: 90.7 t ADT: 17,985

HOMESTEAD RD

Fair

Over: NATURAL DRAIN #8

00.20 S COVINGTON RD, Allen, IN

Built 1970 Load: 90.7 t ADT: 8,500

ST JOE CENTER RD

Fair

Over: GRICE #2 DRAIN

00.10 W SR 37, Allen, IN

Built 1992 Load: 90.7 t ADT: 8,500

I-469

Fair

Over: WOODS DITCH

01.34 W SR 1, Allen, IN

Built 1988 Load: 97.2 t ADT: 19,207

I-469 & EB RAMP

Fair

Over: DRAINAGE DITCH

00.16 E US 27, Allen, IN

Built 1990 Load: 97.2 t ADT: 21,980

I-469

Fair

Over: COCHOIT DITCH

00.78 W US 30, Allen, IN

Built 1990 Load: 97.2 t ADT: 17,985

I-469

Fair

Over: MARTIN DITCH

00.22 N US 30, Allen, IN

Built 1990 Load: 97.2 t ADT: 29,526

I-469

Fair

Over: SWIFT DITCH

00.14 E I-69 (N. JCT.), Allen, IN

Built 1995 Load: 97.2 t ADT: 44,507

PARENT RD

Fair

Over: SUMMERS DRAIN

01.00 E BRUICK ROAD, Allen, IN

Built 1970 Load: 99.9 t ADT: 260

WOODBURN RD

Fair

Over: EDGERTON-CARSON DRAIN

00.01 W BROBST ROAD, Allen, IN

Built 1978 Load: 99.9 t ADT: 1,561

DOTY RD

Good

Over: BOTTERON DRAIN

00.30 E THIMLAR ROAD, Allen, IN

Built 1969 Load: 6.6 t ADT: 208

PRODUCTION BLVD

Good

Over: SPY RUN CREEK

00.30 W LIMA RD, Allen, IN

Built 2022 Load: 11.2 t ADT: 1,107

RECREATION DRIVE

Good

Over: STONY RUN CREEK

0.01 N EAST CALIFORNIA RD, Allen, IN

Built 1996 Load: 15.2 t ADT: 300

SR 1

Good

Over: ELY RUN

02.50 N I-69, Allen, IN

Built 1990 Load: 20.4 t ADT: 9,342

SR 930 WB

Good

Over: ST JOSEPH RIVER

01.74 E US 27, Allen, IN

Built 1962 Load: 20.8 t ADT: 19,360

PLEASANT CENTER RD

Good

Over: HARBER DRAIN

00.10 W BLUFFTON RD, Allen, IN

Built 1969 Load: 21.6 t ADT: 1,249

MORGAN RD

Good

Over: FLATROCK CREEK

00.30 S PAULDING ROAD, Allen, IN

Built 1987 Load: 21.7 t ADT: 182

I-469 NB

Good

Over: MAUMEE RIVER

00.47 N US 24, Allen, IN

Built 1991 Load: 23.3 t ADT: 14,889

MAPLECREST RD

Good

Over: N-S R/R & NELSON RD

00.25 N SR 930, Allen, IN

Built 2012 Load: 23.9 t ADT: 19,150

I-469 EB

Good

Over: CFE RR

02.71 W US 30, Allen, IN

Built 1989 Load: 24.3 t ADT: 10,506

I-469 SB

Good

Over: MAUMEE RIVER

00.47 N US 24, Allen, IN

Built 1991 Load: 24.3 t ADT: 14,637

I-469 WB

Good

Over: CFE RR

02.71 W US 30, Allen, IN

Built 1989 Load: 24.3 t ADT: 10,506

HAND RD

Good

Over: WILLOW CREEK

00.60 N MCCOMB RD, Allen, IN

Built 1987 Load: 24.9 t ADT: 163

EHLE RD

Good

Over: BOTTERON DRAIN

00.30 E BRUICK ROAD, Allen, IN

Built 1972 Load: 24.9 t ADT: 141

SR 1

Good

Over: CEDAR CREEK

04.56 N I-69, Allen, IN

Built 1995 Load: 25.3 t ADT: 11,288

I-69 NB

Good

Over: NS RR (CHICAGO)

00.53 N SR 14, Allen, IN

Built 1960 Load: 26.6 t ADT: 30,914

MONROEVILLE RD

Good

Over: JACOB KOEHLINGER DRAIN

00.50 E EMMANUEL ROAD, Allen, IN

Built 1965 Load: 26.8 t ADT: 1,952

HILLEGAS RD

Good

Over: NORFOLK SOUTHERN R/R

00.30 S BASS ROAD, Allen, IN

Built 2001 Load: 27.1 t ADT: 15,025

SR 101

Good

Over: MAUMEE RIVER

01.68 N of US 24, Allen, IN

Built 1969 Load: 27.9 t ADT: 1,704

SR 101

Good

Over: Branch of Brown Ditch

04.97 S US 30, Allen, IN

Built 1980 Load: 28.5 t ADT: 1,635

BALMORAL DR

Good

Over: DURNELL DRAIN

00.16 E KINROSS LANE, Allen, IN

Built 1980 Load: 28.8 t ADT: 111

SR 101

Good

Over: HOFFMAN CREEK

00.36 N US 30, Allen, IN

Built 1986 Load: 29.2 t ADT: 1,102

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