Total bridges
183
Public highway bridges in Marshall County
County profile · official public datasets
Marshall County, IN
183 public highway bridges tracked in the FHWA National Bridge Inventory: 55.2% rated Good, 41.5% Fair, 3.3% Poor.
- 183
- Public bridges
- 55.2%
- Good condition
- 3.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Marshall County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 33%
- lowest Poor share in state
- 3.3%
- Poor-condition share
- 183
- public highway bridges
- 1984
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Marshall County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Marshall County ranks #30 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.3%). Marshall County, Indiana contains 183 public highway bridges. Roughly 55.2% are rated “Good,” 41.5% “Fair,” and 3.3% “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.
Good condition
55.2%
101 of 183 rated 7-9
Fair condition
41.5%
76 of 183 rated 5-6
Poor condition
3.3%
6 of 183 rated 4 or below
In-state Poor-share rank
#30 of 92
Among Indiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 183 NBI-tracked bridges by lowest applicable component rating.
Good 55.2% (101)
Fair 41.5% (76)
Poor 3.3% (6)
Marshall County's Poor-condition bridges carry 2,975 vehicle crossings a day
That is 0.6% of the county's reported daily bridge traffic on 3.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 496 crossings a day against 3,319 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 183 of 183 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
29% of Marshall County's bridges have passed the 50-year mark
53 of the 183 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 55.2% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 42% of the county's Poor-condition bridge traffic
CENTER STREET over ARMEY DITCH, built 1905, carries 1,250 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 6-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 2,975 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Marshall County's bridges were built
183 bridges with a recorded construction year, grouped by decade
- 1900s 1
1900–1909
1 bridges
- 1910s 2
1910–1919
2 bridges
- 1920s 7
1920–1929
7 bridges
- 1930s 7
1930–1939
7 bridges
- 1960s
1960–1969
22 bridges
- 1970s 18
1970–1979
18 bridges
- 1980s
1980–1989
51 bridges
- 1990s
1990–1999
25 bridges
- 2000s 16
2000–2009
16 bridges
- 2010s
2010–2019
28 bridges
- 2020s 6
2020–2029
6 bridges
What this shows Construction peaked in the 1980s, when 51 of the county's bridges still in the inventory were built, which is 27.9% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1984, 6 years newer than the Indiana average of 1978.
How Marshall County compares with Indiana's closest counties by inventory size
The 5 Indiana counties nearest Marshall County in number of bridges, with their condition splits. Its 3.3% Poor share is the 3rd-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1981 is in line with the group.
Showing the 5 closest of 91 Indiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Jay County | 191 | 45% | 48.7% | 6.3% | 1982 |
| Jasper County | 189 | 34.9% | 64.6% | 0.5% | 1982 |
| Huntington County | 187 | 36.9% | 59.4% | 3.7% | 1978 |
| Cass County | 185 | 48.6% | 49.7% | 1.6% | 1988 |
| Clay County | 185 | 33% | 56.2% | 10.8% | 1974 |
| Marshall County (this page) | 183 | 55.2% | 41.5% | 3.3% | 1984 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Marshall County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Marshall County, both outside Indiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IN (183 bridges here).
- St. Clair County, AL · 183 bridges
- Richmond County, GA · 183 bridges
- Appanoose County, IA · 183 bridges
- Keokuk County, IA · 183 bridges
Similar average build year
Nearest mean year-built outside IN (1984 here).
- Hennepin County, MN · avg 1984 · 936 bridges
- Duval County, FL · avg 1984 · 831 bridges
- El Paso County, CO · avg 1984 · 686 bridges
- Bell County, TX · avg 1984 · 660 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (76)
US 31 SB
FairOver: CFE RR 2 CO RDS
01.19 S US 30, Marshall, IN
Built 1960 Load: 44.7 t ADT: 6,507
EAST 7B ROAD
FairOver: DAUSMAN DITCH
00.40 W OF N FILBERT ROAD, Marshall, IN
Built 1986 Load: 44.7 t ADT: 100
N ULE TRAIL
FairOver: JESSE MCKESSON DITCH
00.75 N OF 1ST ROAD, Marshall, IN
Built 1935 Load: 44.8 t ADT: 150
EAST 17TH RD
FairOver: DEEP OUTLET MAIN
00.20 W OF S FIR RD, Marshall, IN
Built 1982 Load: 44.9 t ADT: 175
EAST 4TH ROAD
FairOver: YELLOW RIVER
00.50 E OF N GRAPE ROAD, Marshall, IN
Built 1970 Load: 45.2 t ADT: 375
N CEDAR ROAD
FairOver: DAUSMAN DITCH
00.80 N OF E. 8TH ROAD, Marshall, IN
Built 1920 Load: 45.2 t ADT: 100
SOUTH FILBERT RD
FairOver: OUTLET ARM DITCH
00.10 N OF E 17TH RD, Marshall, IN
Built 1982 Load: 45.5 t ADT: 100
SOUTH FIR ROAD
FairOver: DEEP OUTLET MAIN
00.10 S OF E 17 B RD, Marshall, IN
Built 1982 Load: 45.5 t ADT: 175
EAST A ROAD
FairOver: YELLOW RIVER
00.30 E OF N GUMWOOD ROAD, Marshall, IN
Built 1935 Load: 46.7 t ADT: 100
EAST 5TH ROAD
FairOver: YELLOW RIVER
00.20 E OF N GRAPE ROAD, Marshall, IN
Built 1971 Load: 47.2 t ADT: 100
SOUTH MUCKSHAW RD.
FairOver: JAMES BALLINGER DITCH
00.20 S OF 14 C ROAD, Marshall, IN
Built 1984 Load: 47.6 t ADT: 525
PLYMOUTH-GOSHEN TR
FairOver: EAST BUNCH DITCH
00.10 SW OF MIAMI HIGHWAY, Marshall, IN
Built 1990 Load: 50.0 t ADT: 2,175
N ROSE ROAD
FairOver: JESSE MCKESSON DITCH
00.80 N OF 1ST ROAD, Marshall, IN
Built 1980 Load: 50.3 t ADT: 100
WEST 2B ROAD
FairOver: SHERMAN EMMONS DITCH
00.20 W OF ROSE ROAD, Marshall, IN
Built 1986 Load: 50.9 t ADT: 100
SOUTH HICKORY ROAD
FairOver: OUTLET ARM DITCH
00.60 S OF E 15th ROAD, Marshall, IN
Built 1989 Load: 50.9 t ADT: 100
18TH B ROAD
FairOver: WARNER DITCH
00.30 W OF LINDEN ROAD, Marshall, IN
Built 1988 Load: 50.9 t ADT: 100
NORTH GRAPE ROAD
FairOver: EAST BUNCH DITCH
00.30 S OF E 3RD ROAD, Marshall, IN
Built 1990 Load: 51.3 t ADT: 125
WEST 18A ROAD
FairOver: ZECHIEL ARM
00.30 E OF S. UNDERWOOD R, Marshall, IN
Built 1985 Load: 52.9 t ADT: 100
EAST 15TH ROAD
FairOver: OUTLET ARM DITCH
00.60 W OF S HICKORY ROAD, Marshall, IN
Built 1989 Load: 52.9 t ADT: 100
GUMWOOD RD
FairOver: OUTLET ARM DITCH
00.60 N OF SR 10, Marshall, IN
Built 1987 Load: 54.2 t ADT: 100
EAST 17TH RD
FairOver: CHARLES PFIEFER DITCH
00.50 E OF S HICKORY, Marshall, IN
Built 1982 Load: 55.8 t ADT: 100
WEST 4A ROAD
FairOver: ELMER SELTENRIGHT DITCH
00.20 W OF N LILAC ROAD, Marshall, IN
Built 1991 Load: 57.2 t ADT: 500
N LILAC ROAD
FairOver: ELMER SELTENRIGHT DITCH
00.20 S OF 4A ROAD, Marshall, IN
Built 1991 Load: 57.2 t ADT: 100
N IRONWOOD ROAD
FairOver: WEST BUNCH DITCH
00.40 N OF E 1ST ROAD, Marshall, IN
Built 1985 Load: 58.5 t ADT: 100
19TH ROAD
FairOver: WARNER DITCH
00.10 W OF LINDEN ROAD, Marshall, IN
Built 1988 Load: 64.7 t ADT: 100
US 6
FairOver: ANDERSON DITCH
01.62 E SR 23, Marshall, IN
Built 1932 Load: 88.2 t ADT: 3,623
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.