Boone County, IN

235 public highway bridges

Boone County Bridge Snapshot

Boone County, Indiana contains 235 public highway bridges in the FHWA National Bridge Inventory. Roughly 40% are rated “Good,” 44.7% “Fair,” 4.3% “Poor,” and 4.3% 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.

235
Total Bridges
40%
Good
4.3%
Poor
4.3%
Structurally Deficient

Condition Distribution

Good
40% (94)
Fair
44.7% (105)
Poor
4.3% (10)
SD
4.3% (10)

All Bridges (235)

CR 400W

Good

Over: WOLF CREEK

00.50 S OF CR 50 S, Boone, IN

Built 1920 Load: 43.1 t ADT: 120

I-65 NB

Good

Over: PRAIRIE CREEK

00.20 N US 52, Boone, IN

Built 2023 Load: 43.4 t ADT: 25,855

CR 600S

Good

Over: GRASSY BRANCH

00.15 E OF SR 39, Boone, IN

Built 2020 Load: 44.4 t ADT: 400

SR 267 EB

Good

Over: I-65 SB/NB

08.59 N I-74, Boone, IN

Built 2021 Load: 45.4 t ADT: 5,403

CR 200E

Good

Over: WILEY THOMPSON DITCH

00.30 N OF CR 800 S, Boone, IN

Built 2005 Load: 47.0 t ADT: 420

ENTERPRISE BLVD

Good

Over: SANITARY DITCH

00.50 S OF SR 32, Boone, IN

Built 2000 Load: 47.0 t ADT: 290

CR 300W

Good

Over: GRASSY BRANCH

0.00 S CR 625S, Boone, IN

Built 2023 Load: 47.3 t ADT: 50

I-65

Good

Over: PRAIRIE CREEK

02.27 S SR 39, Boone, IN

Built 2010 Load: 47.6 t ADT: 73,132

Witt Rd

Good

Over: Small Reynolds Ditch

0.30 N Lafayette Ave, Boone, IN

Built 2022 Load: 47.6 t ADT: 3,498

CR 425W

Good

Over: GRASSY BRANCH

0.02 S CR 625S, Boone, IN

Built 2023 Load: 48.0 t ADT: 50

SR 32

Good

Over: HIGGINS (OWENS) DITCH

00.17 W SR 75, Boone, IN

Built 1983 Load: 48.3 t ADT: 7,529

SYCAMORE STREET

Good

Over: EAGLE CREEK AND TRAIL

00.81 W OF US 421, Boone, IN

Built 1955 Load: 48.3 t ADT: 13,150

CR 500E

Good

Over: FISHBACK CREEK

00.50 N OF ALBERT S. WHIT, Boone, IN

Built 2023 Load: 48.9 t ADT: 110

CR 600W

Good

Over: BIG RACCOON CREEK

00.50 N OF CR 300 S, Boone, IN

Built 2023 Load: 50.5 t ADT: 120

SR 32

Good

Over: ARTMAN DITCH

01.42 W US 421, Boone, IN

Built 2012 Load: 50.9 t ADT: 5,760

CR 100N

Good

Over: FINLEY CREEK

00.20 W OF CR 1200 E, Boone, IN

Built 2011 Load: 51.8 t ADT: 120

Elmwood Dr

Good

Over: Small Reynolds Ditch

00.10 N of Ulen Blvd, Boone, IN

Built 2023 Load: 52.5 t ADT: 100

SR 32

Good

Over: ISENHOUR DITCH

02.37 E SR 39, Boone, IN

Built 2000 Load: 52.8 t ADT: 5,670

US 52 EB

Good

Over: GOLDSBERRY CREEK

04.23 W SR 47, Boone, IN

Built 1946 Load: 52.8 t ADT: 3,660

CR 350S

Good

Over: SMITH DITCH

00.10 W OF CR 125 E, Boone, IN

Built 2021 Load: 55.4 t ADT: 100

CR 125E

Good

Over: SMITH DITCH

00.60 N OF CR 400 S, Boone, IN

Built 2021 Load: 58.3 t ADT: 100

LAFAYETTE AVENUE

Good

Over: PRAIRIE CREEK

00.30 N OF SR 32, Boone, IN

Built 1997 Load: 60.6 t ADT: 740

SR 39

Good

Over: SPRING CREEK

00.56 S SR 47, Boone, IN

Built 1953 Load: 67.1 t ADT: 5,542

CHICAGO STREET

Good

Over: PRAIRIE CREEK

00.01 W OF JAMESON ST., Boone, IN

Built 1955 Load: 69.3 t ADT: 400

CR 500S

Good

Over: WELLS DITCH

00.25 E OF SR 75, Boone, IN

Built 1960 Load: 97.2 t ADT: 520

MDL JAMESTOWN RD

Poor

Over: CUNNINGHAM DITCH

00.30 N OF CR 400 S, Boone, IN

Built 1930 Load: 21.7 t ADT: 120

HAZELRIGG ROAD

Poor

Over: DEER CREEK

01.10 W OF CR 350 W, Boone, IN

Built 1935 Load: 22.7 t ADT: 230

CR 875W

Poor

Over: WALNUT FORK SUGAR CR

00.90 N OF CR 100 S, Boone, IN

Built 1925 Load: 24.5 t ADT: 120

CR 100S

Poor

Over: PRAIRIE CREEK

01.30 W CR 300 E, Boone, IN

Built 1920 Load: 24.9 t ADT: 850

SR 38

Poor

Over: STOKER DITCH

04.75 E US 421, Boone, IN

Built 1966 Load: 26.9 t ADT: 329

CR 600E

Poor

Over: MOUNTS RUN

00.30 N OF CR 200 N, Boone, IN

Built 1930 Load: 30.1 t ADT: 260

CR 600W

Poor

Over: W FORK BIG WALNUT CREEK

00.90 N OF CR 750 S, Boone, IN

Built 1980 Load: 30.5 t ADT: 200

SR 32

Poor

Over: FINLEY CREEK

01.24 E US 421, Boone, IN

Built 1958 Load: 31.1 t ADT: 7,502

CR 900W

Poor

Over: LITTLE SUGAR CREEK

00.75 N OF SR 32, Boone, IN

Built 1960 Load: 42.4 t ADT: 120

CR 300S

Structurally Deficient

Over: JACKSON RUN

00.65 W OF CR 875 E, Boone, IN

Built 1940 Load: 22.5 t ADT: 2,023

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