Allen County, OH

367 public highway bridges

Allen County Bridge Snapshot

Allen County, Ohio contains 367 public highway bridges in the FHWA National Bridge Inventory. Roughly 56.9% are rated “Good,” 21.3% “Fair,” 9.8% “Poor,” and 9.8% 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 OH 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.

367
Total Bridges
56.9%
Good
9.8%
Poor
9.8%
Structurally Deficient

Condition Distribution

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

Related

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