County profile · official public datasets

Todd County, MN

136 public highway bridges tracked in the FHWA National Bridge Inventory: 75.7% rated Good, 21.3% Fair, 2.9% Poor.

136
Public bridges: 75.7%
Good condition: 2.9%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Todd County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 40%
lowest Poor share in state: 2.9%
Poor-condition share: 136
public highway bridges: 1990
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.

Todd County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Todd County ranks #35 of 87 Minnesota counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.9%). Todd County, Minnesota contains 136 public highway bridges. Roughly 75.7% are rated “Good,” 21.3% “Fair,” and 2.9% “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.

Total bridges

136

Public highway bridges in Todd County

Good condition

75.7%

103 of 136 rated 7-9

Fair condition

21.3%

29 of 136 rated 5-6

Poor condition

2.9%

4 of 136 rated 4 or below

In-state Poor-share rank

#35 of 87

Among Minnesota counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 136 NBI-tracked bridges by lowest applicable component rating.

Good

75.7% (103)

Fair

21.3% (29)

Poor

2.9% (4)

Todd County's Poor-condition bridges carry 1,641 vehicle crossings a day

That is 1.6% of the county's reported daily bridge traffic on 2.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 410 crossings a day against 814 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 136 of 136 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

20.6% of Todd County's bridges have passed the 50-year mark

28 of the 136 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 75.7% 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 91.4% of the county's Poor-condition bridge traffic

CSAH 14 over LONG PRAIRIE RIVER, built 1970, carries 1,500 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 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 1,641 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

6
1940s

2
1950s

2
1960s

9
1970s

13
1980s

18
1990s

30
2000s

34
2010s

13
2020s

7

What this shows Construction peaked in the 2000s, when 34 of the county's bridges still in the inventory were built, which is 25% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1990) matches the Minnesota average (1986).

How Todd County compares with Minnesota's closest counties by inventory size

The 5 Minnesota counties nearest Todd County in number of bridges, with their condition splits. Its 2.9% Poor share is the 4th-lowest of these 6. Its average build year of 1990 against a peer-group mean of 1986 is in line with the group.

Showing the 5 closest of 86 Minnesota counties eligible for comparison.

Bridge inventory size and condition shares for Todd County and the 5 Minnesota counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Freeborn County	142	50.7%	46.5%	2.8%	1981
Rice County	142	40.8%	56.3%	2.8%	1986
Renville County	141	66%	24.1%	9.9%	1991
Todd County (this page)	136	75.7%	21.3%	2.9%	1990
Murray County	134	81.3%	13.4%	5.2%	1986
Steele County	134	57.5%	41%	1.5%	1987

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 Todd 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 Todd County, both outside Minnesota so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside MN (136 bridges here).

Bullock County, AL · 136 bridges
Jackson County, AR · 136 bridges
Perry County, IL · 136 bridges
Lincoln County, KY · 136 bridges

Similar average build year

Nearest mean year-built outside MN (1990 here).

Maricopa County, AZ · avg 1990 · 2,847 bridges
Tarrant County, TX · avg 1990 · 2,617 bridges
Fairfax County, VA · avg 1990 · 751 bridges
Guilford County, NC · avg 1990 · 736 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 136 Good 103 Fair 29 Poor 4

All bridges (136)

Sort:

Todd County Bridge Snapshot

Condition distribution

Todd County's Poor-condition bridges carry 1,641 vehicle crossings a day

20.6% of Todd County's bridges have passed the 50-year mark

One structure carries 91.4% of the county's Poor-condition bridge traffic

How Todd County compares with Minnesota's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (136)

CR 78

CSAH 22

CSAH 11

CSAH 21

MN 210

US 71

US 71

US 71

CSAH 11

T 256

CR 77

T 227

T 129

T 90

T 506

T 325

CSAH 1

T 442

CSAH 56

T 299

US 10

CSAH 7

US 71

T 350

T 980

CSAH 18

CSAH 26

T 386

CSAH 9

T 442

T 212

T 375

CSAH 37

T 314

T 257

T 1662

T 336

T 306

CR 74

CR 82

T 422

CR 89

CSAH 24

T 506

CR 77

T 414

T 218

CSAH 24

T 468

CSAH 12

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