Allen County, OH

367 public highway bridges

Allen County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Allen County, Ohio contains 367 public highway bridges. Roughly 56.9% are rated “Good,” 21.3% “Fair,” and 9.8% “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.

367
Total Bridges
56.9%
Good
21.3%
Fair
9.8%
Poor Condition

Condition Distribution

Good
56.9% (209)
Fair
21.3% (78)
Poor
9.8% (36)

All Bridges (367)

USR 30 WB

Good

Over: AUGLAIZE RIVER

US 30, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,669

USR 30 EB

Good

Over: AUGLAIZE RIVER

US 30 OVER AUGLAIZE, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,669

USR 30 WB

Good

Over: LEATHERWOOD DITCH

3.29 mi. East of SR309, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,669

USR 30 EB

Good

Over: LEATHERWOOD DITCH

3.29 mi. East of SR 309, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,669

USR 30 WB

Good

Over: OTTAWA RIVER

4.83 mi. East of SR 309, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,832

USR 30 EB

Good

Over: OTTAWA RIVER

4.83 mi. East of SR 309, Allen, OH

Built 1968 Load: 32.4 t ADT: 4,832

USR 30

Good

Over: INTERMITTENT WATERWAY

.75 MI W OF HAN CO LINE, Allen, OH

Built 1998 Load: 32.4 t ADT: 8,142

IR 75 SB

Good

Over: SUGAR CREEK

0.68 mi. South of USR 30, Allen, OH

Built 1952 Load: 32.4 t ADT: 16,826

IR 75 SB

Good

Over: LITTLE RILEY CREEK

2.66 mi. North of USR 30, Allen, OH

Built 1955 Load: 32.4 t ADT: 15,861

IR 75 NB

Good

Over: LITTLE RILEY CREEK

2.66 mi. North of USR 30, Allen, OH

Built 1955 Load: 32.4 t ADT: 15,861

IR 75 SB

Good

Over: RILEY CREEK

0.57 mi. N of SR 103-BENT, Allen, OH

Built 1963 Load: 32.4 t ADT: 14,899

IR 75 NB

Good

Over: RILEY CREEK

0.57 mi. N of SR 103-BENT, Allen, OH

Built 1955 Load: 32.4 t ADT: 14,899

SR 81

Good

Over: SIX MILE CREEK

SR81 1/2MI E JCT SR 66, Allen, OH

Built 2000 Load: 32.4 t ADT: 619

SR 81

Good

Over: MCBRIDE DITCH

1 MI WEST OF ALLENTOWN, Allen, OH

Built 1999 Load: 32.4 t ADT: 2,358

SR 117

Good

Over: JENNINGS CREEK

0.68 mi. to Spencerville, Allen, OH

Built 1984 Load: 32.4 t ADT: 1,043

SR 117 FOURTH ST

Good

Over: MIAMI AND ERIE CANAL #

DOWNTOWN SPENCERVILLE, Allen, OH

Built 1995 Load: 32.4 t ADT: 1,968

AGERTER RD

Good

Over: AUG. RIVER - AGERTER RD

0.24 MI E OF DEFIANCE TR, Allen, OH

Built 1969 Load: 32.4 t ADT: 481

SWANEY RD.

Good

Over: LITTLE HOG CR SWANEY RD

0.03 MI N OF NAPOLEON RD, Allen, OH

Built 1978 Load: 32.4 t ADT: 501

BLISS RD.

Good

Over: STREAM BLISS RD

0.10 MI E OF GOOD RD, Allen, OH

Built 1983 Load: 32.4 t ADT: 104

PUTNAM CO LINE

Good

Over: STREAM PUT CO LN

0.49 MI W OF BENTLEY RD, Allen, OH

Built 1969 Load: 32.4 t ADT: 509

PIQUAD RD.

Good

Over: AUGLAIZE RIVER PIQUAD RD

0.57 MI W OF CONANT RD, Allen, OH

Built 1982 Load: 33.0 t ADT: 787

BENTLEY RD.

Good

Over: RILEY CREEK BENTLEY RD

0.20 MI S OF BIXEL RD, Allen, OH

Built 1989 Load: 33.0 t ADT: 1,047

RESERVOIR RD.

Good

Over: LOST CR (BR) RESERVIOR

0.11 MI. E OF MUMAUGH RD, Allen, OH

Built 1977 Load: 33.7 t ADT: 3,210

GOOD ROAD

Good

Over: PIGEON RUN - GOOD ROAD

0.83 MI N OF BLISS ROAD, Allen, OH

Built 2017 Load: 33.7 t ADT: 351

LIMA - 4TH ST

Good

Over: LOST CREEK - 4TH ST

0.02 MI E OF LENNOX ST, Allen, OH

Built 1988 Load: 33.7 t ADT: 4,708

IRVIN RD.

Good

Over: PIKE RUN IRVIN RD.

0.38 MI. E. OF CABLE RD., Allen, OH

Built 1996 Load: 33.7 t ADT: 265

FRANKLIN STREET

Good

Over: FLAT FORK CREEK

NORTH OF JACKSON STREET, Allen, OH

Built 1985 Load: 33.7 t ADT: 2,044

SR 117

Good

Over: AUGLAIZE RIVER

5.9 mi. East of IR75, Allen, OH

Built 1971 Load: 34.0 t ADT: 8,042

SLABTOWN RD.

Good

Over: SLABTOWN RD. OVER STREAM

0.36 MI N OF MILLER ROAD, Allen, OH

Built 1963 Load: 34.0 t ADT: 1,845

SLABTOWN RD.

Good

Over: STREAM SLABTOWN RD

0.12 MI N OF EVERSOLE RD, Allen, OH

Built 1962 Load: 34.3 t ADT: 1,650

SUGAR ST.

Good

Over: SUGAR CREEK SUGAR STREET

0.15 MI S OF BLUELICK RD, Allen, OH

Built 1958 Load: 34.7 t ADT: 2,808

MCCLAIN RD.

Good

Over: FREUND CREEK MCCLAIN

0.23 MI N OF BREESE RD, Allen, OH

Built 1981 Load: 34.7 t ADT: 1,457

THAYER RD

Good

Over: STREAM - THAYER ROAD

0.10 MI N OF STATE RD, Allen, OH

Built 2014 Load: 35.3 t ADT: 784

COOL RD.

Good

Over: SUGAR CR COOL RD

0.15 MI S OF DIXIE HWY, Allen, OH

Built 1974 Load: 35.3 t ADT: 88

AMHERST RD.

Good

Over: AUGLAIZE RIVER AMHERST

0.38 MI W OF REAM, Allen, OH

Built 1987 Load: 35.3 t ADT: 612

SR 117

Good

Over: BRANCH OF LOST CREEK

.1 MILE WEST OF I-75, Allen, OH

Built 2013 Load: 35.6 t ADT: 21,540

PIQUAD RD.

Good

Over: OTTAWA RIVER PIQUAD

0.08 MI E OF WAPAK RD., Allen, OH

Built 1987 Load: 35.6 t ADT: 2,074

DIXIE HWY

Good

Over: B&O RR & LIT OTTAWA DIXI

0.43 MI N OF HUME RD, Allen, OH

Built 1930 Load: 35.6 t ADT: 3,482

NEFF RD

Good

Over: OTTAWA RIVER NEFF RD

0.18 MI E OF WAPAK RD, Allen, OH

Built 1998 Load: 35.6 t ADT: 117

ELIZABETH STREET

Good

Over: OTTAWA RIVER

ELIZABETH OVER OTTAWA R., Allen, OH

Built 1993 Load: 35.6 t ADT: 1,878

SEVENTH STREET

Good

Over: FLAT FORK CREEK

EAST OF MOENING STREET, Allen, OH

Built 2019 Load: 35.6 t ADT: 613

DIXIE HWY, N.

Good

Over: SUGAR CREEK NO. DIXIE

0.32 MI NE OF COOL RD, Allen, OH

Built 2000 Load: 36.0 t ADT: 666

MUMAUGH RD

Good

Over: LOST CR (BR) MUMAUGH RD

0.73 MI NO. OF SR 309, Allen, OH

Built 2002 Load: 36.6 t ADT: 4,489

SEARFOSS RD.

Good

Over: CRANBERRY CREEK SEARFOSS

0.30 MI W OF MAYBERRY RD, Allen, OH

Built 1984 Load: 36.6 t ADT: 154

REAM RD

Good

Over: WRESTLE CREEK - REAM RD

0.74 MI S OF AMHERST RD, Allen, OH

Built 2014 Load: 36.9 t ADT: 314

RESERVOIR RD

Good

Over: STREAM RESERVOIR RD.

0.50 MI W. OF NAPOLEON RD, Allen, OH

Built 2001 Load: 36.9 t ADT: 1,765

AMHERST

Good

Over: CAMP CREEK AMHERST RD

0.05 MI E OF GREELY CHAP, Allen, OH

Built 2001 Load: 36.9 t ADT: 612

FETTER RD.

Good

Over: OTTAWA RIVER FETTER RD

0.81 MI N OF RESERVOIR RD, Allen, OH

Built 1991 Load: 37.3 t ADT: 1,030

PHILLIPS RD.

Good

Over: STREAM PHILLIPS RD

0.35 MI N OF NAPOLEON RD, Allen, OH

Built 1987 Load: 37.3 t ADT: 194

BLUF - ELM ST

Good

Over: LITTLE RILEY CK - ELM ST

0.29 MI NW OF MAIN ST, Allen, OH

Built 1973 Load: 37.3 t ADT: 871

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

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.