Allen County, IN

601 public highway bridges

Allen County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Allen County, Indiana contains 601 public highway bridges. Roughly 30.3% are rated “Good,” 47.9% “Fair,” and 6.8% “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.

601
Total Bridges
30.3%
Good
47.9%
Fair
6.8%
Poor Condition

Condition Distribution

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

All Bridges (601)

BOSTICK RD

Fair

Over: ST MARYS RIVER

00.60 W DECATUR ROAD, Allen, IN

Built 2011 Load: 34.4 t ADT: 156

GERARDOT RD

Fair

Over: HOFFMAN DRAIN #2

00.10 N MAPLES ROAD, Allen, IN

Built 1951 Load: 34.6 t ADT: 104

BRUICK RD

Fair

Over: MAUMEE RIVER

00.05 S PARENT ROAD, Allen, IN

Built 1985 Load: 34.7 t ADT: 1,000

SAMPSON RD

Fair

Over: BOHNKE DRAIN

00.00 @ SAMPSON & HOFFMAN, Allen, IN

Built 1972 Load: 34.7 t ADT: 775

S COUNTY LINE RD

Fair

Over: SIMMERMAN DRAIN

00.10 E COMER ROAD, Allen, IN

Built 1973 Load: 34.7 t ADT: 130

CARRIER RD

Fair

Over: FLATROCK CREEK

00.40 E MORGAN, Allen, IN

Built 1974 Load: 34.8 t ADT: 156

MAPLES RD

Fair

Over: BOHNKE DRAIN

00.20 E SAMPSON RD, Allen, IN

Built 1980 Load: 34.9 t ADT: 156

I-69 SB

Fair

Over: SPY RUN CREEK

00.42 S SR 3, Allen, IN

Built 1960 Load: 35.0 t ADT: 35,732

RAY RD

Fair

Over: EEL RIVER

00.20 N CARROLL RD, Allen, IN

Built 1973 Load: 35.0 t ADT: 108

HATHAWAY RD

Fair

Over: GELLER DITCH

00.30 W HAND RD, Allen, IN

Built 1980 Load: 35.2 t ADT: 271

ENGLE RD

Fair

Over: GRAHAM MCCULLOCH #1

00.40 E JEFFERSON BLVD, Allen, IN

Built 1981 Load: 35.3 t ADT: 10,000

GARMAN RD

Fair

Over: CARNAHAN DITCH

00.30 W LOCHNER ROAD, Allen, IN

Built 1973 Load: 35.5 t ADT: 244

RIDER RD

Fair

Over: FLATROCK CREEK

00.10 W MORGAN RD, Allen, IN

Built 1979 Load: 35.6 t ADT: 416

BRUSH COLLEGE RD

Fair

Over: BLACK CREEK

00.10 S DARLING ROAD, Allen, IN

Built 1985 Load: 35.7 t ADT: 156

GRAHAM DR

Fair

Over: SPY RUN CREEK

00.20 W SR 3, Allen, IN

Built 1979 Load: 35.7 t ADT: 111

HOMESTEAD RD

Fair

Over: GRAHAM MCCULLOCH DRAIN

00.30 S US 24, Allen, IN

Built 1978 Load: 35.8 t ADT: 1,613

DARLING RD

Fair

Over: BLACK CREEK

00.10 W BRUSH COLLEGE RD, Allen, IN

Built 1986 Load: 35.9 t ADT: 208

LORTIE RD

Fair

Over: FLATROCK CREEK

00.02 N FLATROCK ROAD, Allen, IN

Built 1989 Load: 35.9 t ADT: 156

MCARDLE RD

Fair

Over: ADAM SCHLEMMER BAKER DRA

00.30 N HOAGLAND RD, Allen, IN

Built 1975 Load: 35.9 t ADT: 156

SAMPSON RD

Fair

Over: BOHNKE DRAIN

00.40 N MAPLES ROAD, Allen, IN

Built 1900 Load: 36.0 t ADT: 104

TILLMAN RD

Fair

Over: MCHENRY DRAIN

00.20 E SNYDER ROAD, Allen, IN

Built 1969 Load: 36.1 t ADT: 1,093

US 27 NB

Fair

Over: BERNING CREEK

04.81 S I-469, Allen, IN

Built 1954 Load: 36.3 t ADT: 5,577

I-469 EB RAMP

Fair

Over: HARBER DITCH

00.13 W SR 1, Allen, IN

Built 1989 Load: 36.3 t ADT: 2,106

GLADESFORD DR

Fair

Over: NATURAL DRAIN

00.40 E IRON BRIDGE RD, Allen, IN

Built 1976 Load: 36.3 t ADT: 10

SNYDER RD

Fair

Over: HOFFMAN DRAIN #2

00.30 S TILLMAN ROAD, Allen, IN

Built 1975 Load: 36.5 t ADT: 208

WERLING RD

Fair

Over: DANNENFELSER DRAIN

00.20 S SR 930, Allen, IN

Built 1965 Load: 36.6 t ADT: 3,000

CLAYTON RD

Fair

Over: BOHNKE DRAIN

00.10 N FLATROCK RD, Allen, IN

Built 1972 Load: 36.7 t ADT: 156

SAMPSON RD

Fair

Over: HOFFMAN DITCH #2

00.25 S US 30, Allen, IN

Built 1892 Load: 36.8 t ADT: 130

PAGE RD

Fair

Over: WHITMER-HAIFLEY #6 DITCH

00.10 N SPRINGFIELD CNTR, Allen, IN

Built 1975 Load: 36.9 t ADT: 1,900

HAMILTON ROAD

Fair

Over: DETTMER DRAIN

00.50 W SR 1, Allen, IN

Built 1970 Load: 37.0 t ADT: 260

SR 930

Fair

Over: TRIER DITCH

02.05 W I-469, Allen, IN

Built 1930 Load: 37.2 t ADT: 12,174

FITCH RD

Fair

Over: LITTLE CEDAR CREEK

00.30 E SIMON RD, Allen, IN

Built 1976 Load: 37.2 t ADT: 108

EMMANUEL RD

Fair

Over: JACOB KOEHLINGER DRAIN

00.01 N THOMPSON ROAD, Allen, IN

Built 1980 Load: 37.4 t ADT: 156

HOFFMAN RD

Fair

Over: FLATROCK CREEK

00.01 E SR 101, Allen, IN

Built 1960 Load: 37.5 t ADT: 130

I-469 EB

Fair

Over: CFE RR

03.81 E US 27, Allen, IN

Built 1989 Load: 37.6 t ADT: 9,884

ABOITE CENTER RD

Fair

Over: ABOITE CREEK

00.10 W HAMILTON RD, Allen, IN

Built 1984 Load: 37.6 t ADT: 1,300

BLUFFTON RD

Fair

Over: HARBER DRAIN

00.20 N FERGUSON RD, Allen, IN

Built 1977 Load: 37.6 t ADT: 14,075

DUPONT ROAD

Fair

Over: BENWARD DITCH

00.59 W. FRITZ ROAD, Allen, IN

Built 1970 Load: 37.6 t ADT: 2,750

EMENHISER RD

Fair

Over: HOUK DRAIN

00.40 N BARKLEY ROAD, Allen, IN

Built 1975 Load: 37.6 t ADT: 104

EDGERTON RD

Fair

Over: LITZENBERG DRAIN

00.01 W STATE LINE, Allen, IN

Built 1982 Load: 37.8 t ADT: 104

MAUMEE CENTER RD

Fair

Over: MARSH DRAIN

00.01 W GUSTIN ROAD, Allen, IN

Built 1983 Load: 37.9 t ADT: 156

YOUNG RD

Fair

Over: TIERNAN DRAIN

00.30 S FLUTTER ROAD, Allen, IN

Built 1974 Load: 38.0 t ADT: 36

ABOITE RD

Fair

Over: PLEASANT RUN DRAIN

00.50 S HAMILTON RD, Allen, IN

Built 1974 Load: 38.0 t ADT: 525

DOYLE RD

Fair

Over: A MARTIN DRAIN

00.40 S SR 14, Allen, IN

Built 1996 Load: 38.0 t ADT: 1,145

BRUICK RD

Fair

Over: BOTTERON DRAIN

00.20 N EHLE ROAD, Allen, IN

Built 1973 Load: 38.3 t ADT: 156

HURSHTOWN RD

Fair

Over: A A JACKSON #2 DITCH

00.30 E KILLIAN ROAD, Allen, IN

Built 1998 Load: 38.6 t ADT: 130

FELGER RD

Fair

Over: SOLON DRAIN

00.40 N ARCOLA RD, Allen, IN

Built 1975 Load: 38.6 t ADT: 1,300

COVINGTON RD

Fair

Over: JUNK DRAIN

00.10 E OF ARDMORE AVE, Allen, IN

Built 1997 Load: 38.6 t ADT: 4,372

FLATROCK RD

Fair

Over: ADAM SCHLEMMER BAKER DRA

00.30 E MCARDLE RD, Allen, IN

Built 1973 Load: 38.8 t ADT: 104

LOWER HUNTINGTON R

Fair

Over: ROBINSON-BRINDLE DRAIN

00.80 E BRANSTRATOR RD, Allen, IN

Built 1935 Load: 39.0 t ADT: 1,587
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.