Marion County, IN

964 public highway bridges

Marion County Bridge Snapshot

Marion County, Indiana contains 964 public highway bridges in the FHWA National Bridge Inventory. Roughly 27% are rated “Good,” 36% “Fair,” 3.7% “Poor,” and 3.7% 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.

964

Total Bridges

27%

Good

3.7%

Poor

3.7%

Structurally Deficient

Condition Distribution

Good

27% (260)

Fair

36% (347)

Poor

3.7% (36)

SD

3.7% (36)

All Bridges (964)

Sort:

I-74 WB

Over: I-465 NBL

19.32 W SR 9, Marion, IN

Built 2001 ADT: 54,025

FISHER ROAD

Over: I-74 WBL

00.52 E I-465, Marion, IN

Built 1959 ADT: 23,692

FRANKLIN ROAD

Over: TROY AVENUE

01.54 E I-465, Marion, IN

Built 1958 ADT: 1,187

POST ROAD

Over: I-74 EBL

02.41 E I-465, Marion, IN

Built 1958 ADT: 19,345

VANDERGRIFF ROAD

Over: I-74 EBL

02.92 E I-465, Marion, IN

Built 1958 ADT: 24,010

THOMPSON ROAD

Over: I-74 EBL

04.01 E I-465, Marion, IN

Built 1958 ADT: 17,310

I-74 EB

Over: ACTON ROAD

05.53 E I-465, Marion, IN

Built 1958 ADT: 5,313

I-74 WB

Over: ACTON ROAD

05.53 E I-465, Marion, IN

Built 1958 ADT: 5,313

SHERMAN DRIVE

Over: I-465 EB

0.17 E I-65, Marion, IN

Built 2014 ADT: 61,255

I465 WB to I65 SB

Over: I-465 EB

00.17 E I-65, Marion, IN

Built 2014 ADT: 53,313

I-465 EB

Over: NINTH AVENUE

00.76 E I-65, Marion, IN

Built 1961 ADT: 6,100

I-465 WB

Over: NINTH AVENUE

00.76 E I-65, Marion, IN

Built 1961 ADT: 6,100

EMERSON AVENUE

Over: I-465 WB

01.25 E I-65, Marion, IN

Built 2000 ADT: 61,255

I-465 EB

Over: HANNA AVE

01.69 W I-74, Marion, IN

Built 1962 ADT: 3,978

I-465 WB

Over: EAST HANNA AVENUE

01.69 W I-74, Marion, IN

Built 1962 ADT: 3,978

SOUTHEASTERN AVE

Over: I-465 SB

00.46 S I-74, Marion, IN

Built 2000 ADT: 143,272

I465 SB to I74 EB

Over: US 421X WB

00.04 S I-74, Marion, IN

Built 2001 ADT: 19,110

I74 WB TO I465 SB

Over: I-465 NB

00.03 N I-74, Marion, IN

Built 2002 ADT: 53,400

RAYMOND STREET

Over: I-465 NB

00.53 N I-74, Marion, IN

Built 1999 ADT: 51,117

I-74 WB RAMP TO I-

Over: I-465 NB RAMP

00.78 N I-74, Marion, IN

Built 2001 ADT: 13,214

I-465 NB RAMP

Over: I-465 NB

00.52 S US 52, Marion, IN

Built 2001 ADT: 144,690

I-465 NB

Over: US 52 WB

01.50 N I-74, Marion, IN

Built 1965 ADT: 7,670

I-465 SB

Over: US 52 EB

01.50 N I-74, Marion, IN

Built 1965 ADT: 7,745

ENGLISH AVENUE

Over: I-465 NB

00.77 N US 52, Marion, IN

Built 1965 ADT: 57,177

I-465 NB

Over: US 40 WB

01.55 N US 52, Marion, IN

Built 1965 ADT: 17,800

I-465 SB

Over: US 40 EB

01.55 N US 52, Marion, IN

Built 1965 ADT: 17,800

I-465 NB

Over: E 10TH ST EB/WB

00.63 N US 40, Marion, IN

Built 1966 ADT: 11,801

I-465 SB

Over: E 10TH ST EB/WB

00.63 N US 40, Marion, IN

Built 1966 ADT: 11,801

E 16TH STREET

Over: I-465 SB

01.17 N US 40, Marion, IN

Built 2001 ADT: 133,508

I-70 WB TO I-465 S

Over: I-465 SB

01.48 N US 40, Marion, IN

Built 1977 ADT: 60,870

I-465 DRE - RAMP

Over: E 21ST ST EB

00.18 S I-70, Marion, IN

Built 1966 ADT: 6,635

I-465 DRW - RAMP

Over: E 21ST ST EB

00.18 S I-70, Marion, IN

Built 1966 ADT: 6,964

I-465 NB

Over: E 21ST ST WB

00.18 S I-70, Marion, IN

Built 1966 ADT: 6,635

I-465 SB

Over: E 21ST ST WB

00.18 S I-70, Marion, IN

Built 1966 ADT: 6,635

RAMP I-70 EB-I-465

Over: I-465 NB

00.12 S I-70, Marion, IN

Built 2002 ADT: 133,508

I-465 NB

Over: I456SB-I70EB RAMP

00.07 S I-70, Marion, IN

Built 2002 ADT: 20,400

I-465 SB

Over: I465SB-I70EB RAMP

00.07 S I-70, Marion, IN

Built 2002 ADT: 20,400

I-465 NB

Over: I-70 WB

02.39 S US 36 / SR 67, Marion, IN

Built 1966 ADT: 97,785

I-465 SB

Over: I-70 WB CD

02.39 S US 36 / SR 67, Marion, IN

Built 1966 ADT: 97,785

I-465 NB

Over: EAST 30TH STREET

00.89 N I-70, Marion, IN

Built 1965 ADT: 16,177

I-465 SB

Over: EAST 30TH STREET

00.89 N I-70, Marion, IN

Built 1965 ADT: 16,177

E 38TH STREET EB

Over: I-465 NB

00.49 S US 36 / SR 67, Marion, IN

Built 2001 ADT: 179,302

E 38TH STREET WB

Over: I-465 NB

00.48 S US 36 / SR 67, Marion, IN

Built 2001 ADT: 179,302

I-465 NB

Over: US 36 EB

02.39 N I-70, Marion, IN

Built 1965 ADT: 10,703

I-465 SB

Over: US 36 EB

02.39 N I-70, Marion, IN

Built 1965 ADT: 10,703

E 46TH STREET

Over: I-465 SB

00.61 N US 36 / SR 67, Marion, IN

Built 2000 ADT: 214,411

SHADELAND AVE NB

Over: I-465 SB

01.09 N US 36/SR 67, Marion, IN

Built 2003 ADT: 214,411

E 56TH STREET

Over: I-465 NB

01.69 N US36/SR67, Marion, IN

Built 2003 ADT: 79,983

SHADELAND AVE NB

Over: I-465 NB ON RAMP

02.22 N US 36/SR 67, Marion, IN

Built 2003 ADT: 9,000

SHADELAND AVE SB

Over: I-465 NB RAMPS

02.21 N US 36/SR 67, Marion, IN

Built 2000 ADT: 214,411

Read our methodology — how this data is sourced, computed, and verified.

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026