Marion County, IN

964 public highway bridges

Marion County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Marion County, Indiana contains 964 public highway bridges. Roughly 27% are rated “Good,” 36% “Fair,” and 3.7% “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.

964

Total Bridges

27%

Good

36%

Fair

3.7%

Poor Condition

Condition Distribution

Good

27% (260)

Fair

36% (347)

Poor

3.7% (36)

All Bridges (964)

Sort:

CARSON AVENUE

Over: I-465 EBL & RAMP

01.96 E US 31, Marion, IN

Built 2022 ADT: 46,611

SERVICE ROAD

Over: WEST TUNNEL

00.00 STATE FAIRGROUNDS, Marion, IN

Built 1995 ADT: 133

TRACK OF CHAMPIONS

Over: EAST TUNNEL ROADWAY

00.00 STATE FAIRGROUNDS, Marion, IN

Built 1936 ADT: 118

WESTFIELD BLVD

Over: I465 WBL

00.82 W SR 431, Marion, IN

Built 2010 ADT: 62,929

W 10TH STREET

Over: I-465 NB

01.05 N US 36, Marion, IN

Built 2009 ADT: 76,190

I-465 NB

Over: MINNESOTA ST EB & WB

00.38 S US 40, Marion, IN

Built 2009 ADT: 1,800

I-465 SB

Over: MINNESOTA ST

00.38 S US 40, Marion, IN

Built 2009 ADT: 1,800

NORTH RIVER ROAD

Over: I465 EBL

02.84 W I-69, Marion, IN

Built 2010 ADT: 74,728

WEST HANNA AVENUE

Over: I-465 NB

00.44 S I-70, Marion, IN

Built 2009 ADT: 54,230

W 34TH STREET

Over: I-465 NB

00.71 N I-74, Marion, IN

Built 2008 ADT: 67,873

W 46TH STREET

Over: I-465 NB

01.81 S OF I-65, Marion, IN

Built 2008 ADT: 58,749

US 36/ROCKVILLE RD

Over: I-465 SB

06.98 E SR 267, Marion, IN

Built 2009 ADT: 71,031

W 21ST STREET

Over: I-465 SB

00.80 S I-74, Marion, IN

Built 2009 ADT: 74,625

W 38TH STREET

Over: I-465 NB RAMP

01.23 N I-74, Marion, IN

Built 2008 ADT: 4,256

I-70

Over: SHERMAN DRIVE

03.91 W I-465, Marion, IN

Built 2007 ADT: 10,375

I-465 EB

Over: KEYSTONE AVE SBL RAMP

03.16 E US 31, Marion, IN

Built 2010 ADT: 10,000

I-465 WB

Over: KEYSTONE AVE NBL RAMP

03.16 E US 31, Marion, IN

Built 2010 ADT: 10,000

I-465 NB

Over: US 40/WASHINGTON ST EBL

02.15 S US 36, Marion, IN

Built 2009 ADT: 13,178

I-465 SB

Over: US 40/WASHINGTON ST WBL

02.15 S US 36, Marion, IN

Built 2009 ADT: 13,260

I-465 EB

Over: COLLEGE AVE

00.64 E US 31, Marion, IN

Built 2010 ADT: 12,437

I-465 WB

Over: COLLEGE AVE

00.64 E US 31, Marion, IN

Built 2010 ADT: 12,437

I465 NB to I70 WB

Over: I-70 EB

00.13 E I-465, Marion, IN

Built 2011 ADT: 21,150

RAMP I70 EB-I465NB

Over: I-465 SB CD

00.79 N SR 67, Marion, IN

Built 2011 ADT: 6,015

I-70 EB

Over: I-465 SB CD

06.53 E SR 267, Marion, IN

Built 2011 ADT: 14,325

I-70 WB

Over: I-465 SB CD

06.53 E SR 267, Marion, IN

Built 2011 ADT: 14,325

SAM JONES EXPRWY

Over: I-465 SB

01.28 S US 40, Marion, IN

Built 2011 ADT: 56,731

I-70 EB

Over: RAMP I-70 EB to I-465 NB

00.08 E I-465, Marion, IN

Built 2011 ADT: 19,625

I-70 WB

Over: RAMP I-70 EB to I-465 NB

00.08 E I-465, Marion, IN

Built 2011 ADT: 19,625

E 75TH STREET

Over: I-465 SBL

00.39 S I-69, Marion, IN

Built 2011 ADT: 97,835

E 82ND STREET EB

Over: I-465 EBL

02.54 E SR 431, Marion, IN

Built 2012 ADT: 68,999

E 82ND STREET WB

Over: I-465 WBL

02.54 E SR 431, Marion, IN

Built 2012 ADT: 76,325

SR 37 NBL

Over: COUNTY LINE ROAD WBL

04.45 S I-465, Marion, IN

Built 2023 ADT: 11,250

SR 37 SBL

Over: COUNTY LINE ROAD WBL

04.45 S I-465, Marion, IN

Built 2022 ADT: 11,250

SR 37 NBL

Over: WICKER ROAD

03.86 S I-465, Marion, IN

Built 2023 ADT: 3,300

SR 37 SBL

Over: WICKER ROAD

03.86 S I-465, Marion, IN

Built 2022 ADT: 3,300

MADISON AVENUE

Over: I-465 EB

00.57 E US 31, Marion, IN

Built 2022 ADT: 59,987

SR 37 NBL

Over: BANTA ROAD

1.75 S I-465, Marion, IN

Built 2022 ADT: 7,800

SOUTHPORT ROAD

Over: SR 37 (I-69) SBL

2.33 S I-465, Marion, IN

Built 2022 ADT: 36,900

I-65 NB

Over: WASHINGTON STREET

00.92 N I-70, Marion, IN

Built 2022 ADT: 30,000

I-65 SB

Over: WASHINGTON STREET

00.92 N I-70, Marion, IN

Built 2022 ADT: 30,000

I-65 SB

Over: EAST TENTH STREET

01.92 N I-70, Marion, IN

Built 2023 ADT: 6,850

I-70 WB & I-65 SB

Over: EAST 10TH STREET

00.52 E I-65, Marion, IN

Built 2023 ADT: 6,850

I-65 SB

Over: I-70 WB & I-70 WB-CD

02.21 N I-70, Marion, IN

Built 2023 ADT: 36,289

I-65 NB

Over: I-70 WB & I-70 WB CD Ram

02.21 N I-70, Marion, IN

Built 2023 ADT: 11,856

I-65 NBL Ramp from

Over: I-65 NBL Mainline Ramp

02.12 N I-70, Marion, IN

Built 2023 ADT: 34,480

I-70 EB Ramp from

Over: I-65 NB Mainline Ramp

00.48 E I-65, Marion, IN

Built 2023 ADT: 34,480

ROCK ISLAND ACCESS

Over: 86TH ST

00.58 E ZIONSVILLE ROAD, Marion, IN

Built 1995 ADT: 369

38TH STREET WB

Over: GUION ROAD

00.15 E I-65, Marion, IN

Built 1964 ADT: 10,600

38TH STREET EB

Over: GUION ROAD

00.50 E OF LAFAYETTE ROAD, Marion, IN

Built 1964 ADT: 10,600

38TH STREET EB

Over: CENTRAL CANAL TRAIL

00.35 W OF MICHIGAN ROAD, Marion, IN

Built 1960 ADT: 10

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

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