County profile · official public datasets

Platte County, NE

433 public highway bridges tracked in the FHWA National Bridge Inventory: 34.4% rated Good, 60.7% Fair, 4.8% Poor.

433
Public bridges
34.4%
Good condition
4.8%
Poor condition

The verdict

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

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

Top 43%
lowest Poor share in state
4.8%
Poor-condition share
433
public highway bridges
1980
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.

Platte County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Platte County ranks #38 of 88 Nebraska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.8%). Platte County, Nebraska contains 433 public highway bridges. Roughly 34.4% are rated “Good,” 60.7% “Fair,” and 4.8% “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

433

Public highway bridges in Platte County

Good condition

34.4%

149 of 433 rated 7-9

Fair condition

60.7%

263 of 433 rated 5-6

Poor condition

4.8%

21 of 433 rated 4 or below

In-state Poor-share rank

#38 of 88

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

Condition distribution

Share of 433 NBI-tracked bridges by lowest applicable component rating.

Good
34.4% (149)
Fair
60.7% (263)
Poor
4.8% (21)

Platte County's Poor-condition bridges carry 23,335 vehicle crossings a day

That is 6.4% of the county's reported daily bridge traffic on 4.8% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,111 crossings a day against 1,425 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 433 of 433 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

35.1% of Platte County's bridges have passed the 50-year mark

152 of the 433 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 34.4% 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 61.7% of the county's Poor-condition bridge traffic

WB-US30/US81 over LOUP RIVER, built 1931, carries 14,395 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 21-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 23,335 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Platte County's bridges were built

433 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 80 of the county's bridges still in the inventory were built, which is 18.5% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1980) matches the Nebraska average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Platte County compares with Nebraska's closest counties by inventory size

The 5 Nebraska counties nearest Platte County in number of bridges, with their condition splits. Its 4.8% Poor share is the 3rd-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1978 is in line with the group.

Showing the 5 closest of 87 Nebraska counties eligible for comparison.

Bridge inventory size and condition shares for Platte County and the 5 Nebraska counties closest to it in inventory size
County Bridges Poor
Saunders County 506 8.3%
Buffalo County 459 1.7%
Platte County (this page) 433 4.8%
Cuming County 402 2%
Gage County 394 8.1%
Otoe County 359 22.3%

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

Similar inventory size

Nearest county inventories outside NE (433 bridges here).

Similar average build year

Nearest mean year-built outside NE (1980 here).

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

All 433 Good 149 Fair 263 Poor 21

Poor-condition bridges (21)

COUNTY HIGHWAY

Poor

Over: TRACY CREEK

1N 2E OF HUMPHREY, Platte, NE

Built 1992 Load: 0.0 t ADT: 100

TOWNSHIP RD 295 ST

Poor

Over: LOOKING GLASS CREEK

3.5N 5.1W OF MONROE, Platte, NE

Built 1905 Load: 0.0 t ADT: 5

CO ROAD 370TH AVE.

Poor

Over: STREAM

3N 1.5W OF CORNLEA, Platte, NE

Built 1935 Load: 0.0 t ADT: 10

115TH ST

Poor

Over: PRAIRIE CREEK

5SW OF DUNCAN, Platte, NE

Built 1935 Load: 5.0 t ADT: 15

520 TH ST.

Poor

Over: STREAM

2W N45 MADISON CL, Platte, NE

Built 1935 Load: 6.0 t ADT: 35

FAS 2855

Poor

Over: COLUMBUS GENOA CANAL

JCT US81/N22 3W 1.7N, Platte, NE

Built 1935 Load: 10.0 t ADT: 95

COLL 7697

Poor

Over: STREAM

1.5SW OF TARNOV, Platte, NE

Built 1935 Load: 14.0 t ADT: 125

FAS 2760

Poor

Over: COLUMBUS GENOA CANAL

JCT US81/N22 1.5N 2E, Platte, NE

Built 1935 Load: 14.0 t ADT: 700

COUNTY HIGHWAY

Poor

Over: STREAM

JCT US81/N91 4.5E 1.5N, Platte, NE

Built 1935 Load: 15.0 t ADT: 50

WB-US30/US81

Poor

Over: LOUP RIVER

SJCT US30/US81 .3N, Platte, NE

Built 1931 Load: 15.0 t ADT: 14,395

R71G/LAKE NORTH

Poor

Over: COLUMBUS GENOA CANAL

JCT US30/L-71D 1E 2.7N, Platte, NE

Built 1935 Load: 17.0 t ADT: 3,025

415TH AVE

Poor

Over: LOUP RIVER CANAL

3W .25N OF MONROE, Platte, NE

Built 1935 Load: 19.0 t ADT: 50

220TH ST

Poor

Over: LOUP RIVER CANAL TRIB

1.5S 5.1W OF MONROE, Platte, NE

Built 1935 Load: 20.0 t ADT: 40

385TH RD

Poor

Over: SHELL CREEK TRIB

5.2W OF TARNOV, Platte, NE

Built 1974 Load: 24.0 t ADT: 60

FAS 2815

Poor

Over: STREAM

JCT US81/N22 6W 8.7N, Platte, NE

Built 1976 Load: 24.0 t ADT: 120

400TH AVE

Poor

Over: LOUP RIVER CANAL

.5N 2W OF MONROE, Platte, NE

Built 1935 Load: 25.0 t ADT: 50

FAS 2855

Poor

Over: STREAM

JCT US81/N22 2W 2.8N, Platte, NE

Built 1964 Load: 25.0 t ADT: 95

COLL 7693

Poor

Over: LOSEKE CREEK

11E OF TARNOV, Platte, NE

Built 1971 Load: 26.0 t ADT: 90

FAS 2855

Poor

Over: STREAM

JCT US81/N22 1.5W 4N, Platte, NE

Built 1935 Load: 31.0 t ADT: 235

N22

Poor

Over: COLUMBUS GENOA CANAL

4W MONROE, Platte, NE

Built 1935 Load: 33.0 t ADT: 3,890

FRONT STREET

Poor

Over: STREAM

LINDSAY FRONT @ WALNUT, Platte, NE

Built 1984 Load: 35.0 t ADT: 150

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

Related

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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.