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)

COLDWATER RD

Fair

Over: BECKETT RUN

00.20 N TILL RD, Allen, IN

Built 2002 Load: 21.9 t ADT: 10,000

SEILER RD

Fair

Over: SCHMIDT DRAIN

00.01 E HARTZELL ROAD, Allen, IN

Built 1960 Load: 22.0 t ADT: 1,841

WYBURN RD

Fair

Over: BOHNKE DRAIN

00.70 W SAMPSON ROAD, Allen, IN

Built 1890 Load: 22.2 t ADT: 2

MARION CENTER RD

Fair

Over: ST MARYS RIVER

00.60 N WINCHESTER, Allen, IN

Built 1895 Load: 22.4 t ADT: 150

HOAGLAND RD

Fair

Over: ST MARYS RIVER

00.15 NE WINCHESTER ROAD, Allen, IN

Built 1947 Load: 22.6 t ADT: 1,041

FAYETTE DR

Fair

Over: NATURAL DRAIN #4

00.20 E HYSTONE DR, Allen, IN

Built 1985 Load: 22.6 t ADT: 263

ST JOSEPH CENTER R

Fair

Over: ST JOSEPH RIVER

00.10 E MARTIN LUTHER DR, Allen, IN

Built 1962 Load: 22.9 t ADT: 15,025

SR 930

Fair

Over: MAUMEE RIVER

05.05 E US 27, Allen, IN

Built 1951 Load: 23.0 t ADT: 25,333

CARROLL RD

Fair

Over: MAIN DRAIN

00.50 E JOHNSON, Allen, IN

Built 1970 Load: 23.1 t ADT: 2,167

STATE LINE ROAD

Fair

Over: HOFFMAN FLATROCK DRAIN

00.15 S OF PAULDING ROAD, Allen, IN

Built 1900 Load: 23.4 t ADT: 573

THIMLAR RD

Fair

Over: BOTTERON DRAIN

00.20 N DOTY ROAD, Allen, IN

Built 1960 Load: 23.9 t ADT: 1,952

S. MAPLECREST

Fair

Over: TRIER DRAIN

00.30 S OF MOELLER RD, Allen, IN

Built 1963 Load: 23.9 t ADT: 8,050

HAND RD

Fair

Over: WILLOW CREEK

01.00 N MCCOMB RD, Allen, IN

Built 1986 Load: 24.0 t ADT: 163

I-469 WB

Fair

Over: ST MARY'S RIVER

00.45 W US 27, Allen, IN

Built 1990 Load: 24.3 t ADT: 9,709

GRABILL RD

Fair

Over: ST JOSEPH RIVER

00.20 W SCHWARTZ ROAD, Allen, IN

Built 1965 Load: 24.5 t ADT: 10,300

HAND RD

Fair

Over: WILLOW CREEK

00.40 N MCCOMB RD, Allen, IN

Built 1987 Load: 24.9 t ADT: 163

ANTWERP RD

Fair

Over: NATURAL DRAIN #3

00.03 W BULL RAPIDS ROAD, Allen, IN

Built 1958 Load: 25.0 t ADT: 1,587

GAR CREEK RD

Fair

Over: LOMONT DRAIN

00.30 E BERTHAUD ROAD, Allen, IN

Built 1976 Load: 25.2 t ADT: 260

ELLISON RD

Fair

Over: GRAHAM MCCULLOCH DRAIN

00.80 S US 24, Allen, IN

Built 1945 Load: 25.4 t ADT: 2,550

GRABILL RD

Fair

Over: OBERHALTZER DITCH

00.20 E CUBA ROAD, Allen, IN

Built 1937 Load: 25.7 t ADT: 312

WILSON RD

Fair

Over: HOFFMAN DRAIN #2

00.50 S TILLMAN ROAD, Allen, IN

Built 1986 Load: 25.7 t ADT: 130

SR 3 NB

Fair

Over: WILLOW CREEK BRANCH

03.74 S SR 205, Allen, IN

Built 1959 Load: 25.9 t ADT: 6,815

SR 3 SB

Fair

Over: WILLOW CREEK BRANCH

03.74 S SR 205, Allen, IN

Built 1959 Load: 25.9 t ADT: 7,189

SR 14

Fair

Over: BEAL-TAYLOR DITCH

04.42 W I-69, Allen, IN

Built 1978 Load: 25.9 t ADT: 9,672

US 24 EB

Fair

Over: ABOITE CREEK

04.11 W I-69, Allen, IN

Built 1939 Load: 25.9 t ADT: 6,585

US 24 WB

Fair

Over: ABOITE CREEK

04.11 W I-69, Allen, IN

Built 1939 Load: 25.9 t ADT: 7,074

US 27 SB

Fair

Over: HOUK DITCH

00.72 N I-469, Allen, IN

Built 1977 Load: 25.9 t ADT: 5,586

MAPLES RD

Fair

Over: HOFFMAN DRAIN

00.10 W GERADOT ROAD, Allen, IN

Built 1950 Load: 25.9 t ADT: 130

KNOUSE RD

Fair

Over: WANN DITCH

00.20 E SR 101, Allen, IN

Built 1971 Load: 26.2 t ADT: 625

SOUTH BEND DR

Fair

Over: GRAHAM MCCULLOCH DRAIN

00.10 E JEFFERSON BLVD, Allen, IN

Built 1978 Load: 26.5 t ADT: 1,747

BELLO DR

Fair

Over: BULLERMAN DRAIN

00.10 E SAN PEDRO DR, Allen, IN

Built 1969 Load: 26.7 t ADT: 158

SR 930 WB

Fair

Over: NS RR

05.36 E US 27, Allen, IN

Built 1953 Load: 27.2 t ADT: 12,780

WINCHESTER RD

Fair

Over: SIMMERMAN DRAIN

00.20 NW HOAGLAND ROAD, Allen, IN

Built 1937 Load: 27.4 t ADT: 2,030

MAYSVILLE RD

Fair

Over: KOESTER DITCH

00.50 N STELLHORN ROAD, Allen, IN

Built 1954 Load: 27.4 t ADT: 18,000

I-69 NB

Fair

Over: NS RR, MCCULLOCH DITCH

00.80 S US 24, Allen, IN

Built 1964 Load: 27.5 t ADT: 19,158

MORGAN RD

Fair

Over: HOFFMAN DRAIN

00.20 S PAULDING ROAD, Allen, IN

Built 1987 Load: 27.8 t ADT: 182

US 27 SB

Fair

Over: BERNING CREEK

04.81 S I-469, Allen, IN

Built 1977 Load: 27.9 t ADT: 6,011

US 30 EB

Fair

Over: SEEGAR DITCH

02.66 W US 33, Allen, IN

Built 1960 Load: 27.9 t ADT: 11,505

US 30 WB

Fair

Over: SEEGAR DITCH

02.66 W US 33, Allen, IN

Built 1960 Load: 27.9 t ADT: 11,505

S COUNTY LINE RD

Fair

Over: JACOB JOHNSON DRAIN

00.20 E ZUBRICK RD, Allen, IN

Built 1971 Load: 28.0 t ADT: 312

MORGAN RD

Fair

Over: FLATROCK CREEK

00.30 S RIDER RD, Allen, IN

Built 1990 Load: 28.0 t ADT: 775

EDGERTON RD

Fair

Over: EDGERTON-CARSON DRAIN

00.01 W BROBST ROAD, Allen, IN

Built 1970 Load: 28.1 t ADT: 104

I-69 SB

Fair

Over: NS RR, MCCULLOCH DITCH

00.80 S US 24, Allen, IN

Built 1964 Load: 28.2 t ADT: 18,794

O'DAY RD

Fair

Over: SEEGAR DRAIN

00.10 N LEESBURG RD, Allen, IN

Built 1972 Load: 28.2 t ADT: 867

HALTER RD

Fair

Over: ST JOSEPH RIVER

00.50 N ST JOE ROAD, Allen, IN

Built 1984 Load: 28.4 t ADT: 5,000

COVINGTON RD

Fair

Over: ABOITE CREEK

00.20 W EGGEMAN RD, Allen, IN

Built 1981 Load: 28.4 t ADT: 4,500

US 33

Fair

Over: EEL RIVER

03.30 S SR 205, Allen, IN

Built 1950 Load: 28.5 t ADT: 8,409

HARTZELL RD

Fair

Over: BENDER #2 DRAIN

00.00 INT SEILER/HARTZELL, Allen, IN

Built 1960 Load: 28.5 t ADT: 2,863

MINNICH RD

Fair

Over: HOUK DRAIN

00.60 S FLATROCK ROAD, Allen, IN

Built 1958 Load: 28.7 t ADT: 3,695

WASHINGTON CENTER

Fair

Over: BRANCH SPY RUN CREEK

00.50 W LIMA RD, Allen, IN

Built 1994 Load: 28.8 t ADT: 12,000

Related

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