County profile · official public datasets

Renville County, ND

24 public highway bridges tracked in the FHWA National Bridge Inventory: 25% rated Good, 66.7% Fair, 8.3% Poor.

24
Public bridges: 25%
Good condition: 8.3%
Poor condition

The verdict

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

Renville County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

28th
of 53 on Poor share: 8.3%
Poor-condition share: 24
public highway bridges: 1972
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.

Renville County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Renville County ranks #28 of 53 North Dakota counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.3%). Renville County, North Dakota contains 24 public highway bridges. Roughly 25% are rated “Good,” 66.7% “Fair,” and 8.3% “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.

Total bridges

Public highway bridges in Renville County

Good condition

25%

6 of 24 rated 7-9

Fair condition

66.7%

16 of 24 rated 5-6

Poor condition

8.3%

2 of 24 rated 4 or below

In-state Poor-share rank

#28 of 53

Among North Dakota counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 24 NBI-tracked bridges by lowest applicable component rating.

Good

25% (6)

Fair

66.7% (16)

Poor

8.3% (2)

Renville County's Poor-condition bridges carry 45 vehicle crossings a day

That is 0.5% of the county's reported daily bridge traffic on 8.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 23 crossings a day against 1,177 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 24 of 24 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

54.2% of Renville County's bridges have passed the 50-year mark

13 of the 24 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 25% 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 55.6% of the county's Poor-condition bridge traffic

COUNTY ROAD over DES LACS RIVER, built 1960, carries 25 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 2-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 45 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

1
1950s

1
1960s

8
1970s

6
1980s

2
2000s

2
2010s

2

What this shows Construction peaked in the 1960s, when 8 of the county's bridges still in the inventory were built, which is 33.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1972) matches the North Dakota average (1975).

How Renville County compares with North Dakota's closest counties by inventory size

The 5 North Dakota counties nearest Renville County in number of bridges, with their condition splits. Its 8.3% Poor share is the 3rd-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1974 is in line with the group.

Showing the 5 closest of 52 North Dakota counties eligible for comparison.

Bridge inventory size and condition shares for Renville County and the 5 North Dakota counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Eddy County	27	59.3%	29.6%	11.1%	1979
Oliver County	24	41.7%	50%	8.3%	1974
Renville County (this page)	24	25%	66.7%	8.3%	1972
Nelson County	23	34.8%	47.8%	17.4%	1975
Griggs County	22	63.6%	27.3%	9.1%	1974
Sioux County	22	59.1%	36.4%	4.5%	1970

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 Renville 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 Renville County, both outside North Dakota so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside ND (24 bridges here).

Meade County, KY · 24 bridges
Robertson County, KY · 24 bridges
Garfield County, NE · 24 bridges
De Baca County, NM · 24 bridges

Similar average build year

Nearest mean year-built outside ND (1972 here).

Santa Clara County, CA · avg 1972 · 964 bridges
Madison County, AL · avg 1972 · 710 bridges
Kern County, CA · avg 1972 · 668 bridges
York County, PA · avg 1972 · 569 bridges

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

All 24 Good 6 Fair 16 Poor 2

All bridges (24)

Sort:

Renville County Bridge Snapshot

Condition distribution

Renville County's Poor-condition bridges carry 45 vehicle crossings a day

54.2% of Renville County's bridges have passed the 50-year mark

One structure carries 55.6% of the county's Poor-condition bridge traffic

How Renville County compares with North Dakota'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 (24)

COUNTY ROAD

COUNTY HIGHWAY

COUNTY ROAD 3804

COUNTY ROAD

COUNTY ROAD 3828

COUNTY ROAD

COUNTY HIGHWAY

ND HIGHWAY 28

COUNTY ROAD

COUNTY ROAD

COUNTY HIGHWAY

COUNTY ROAD

ND HIGHWAY 28

ND HIGHWAY 5

COUNTY HIGHWAY

COUNTY ROAD

US HIGHWAY 83

COUNTY HIGHWAY

US HIGHWAY 83

US HIGHWAY 52

ND HIGHWAY 5

COUNTY HIGHWAY

COUNTY ROAD

COUNTY ROAD

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