Total bridges
118
Public highway bridges in Sherman County
County profile · official public datasets
118 public highway bridges tracked in the FHWA National Bridge Inventory: 57.6% rated Good, 39% Fair, 3.4% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Sherman County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Sherman County ranks #29 of 88 Nebraska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.4%). Sherman County, Nebraska contains 118 public highway bridges. Roughly 57.6% are rated “Good,” 39% “Fair,” and 3.4% “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
118
Public highway bridges in Sherman County
Good condition
57.6%
68 of 118 rated 7-9
Fair condition
39%
46 of 118 rated 5-6
Poor condition
3.4%
4 of 118 rated 4 or below
In-state Poor-share rank
#29 of 88
Among Nebraska counties with 5+ bridges, lower share ranks better
Share of 118 NBI-tracked bridges by lowest applicable component rating.
That is 1.8% of the county's reported daily bridge traffic on 3.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 208 crossings a day against 556 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 118 of 118 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
71 of the 118 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 57.6% 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.
N58 over STREAM, built 1969, carries 660 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 830 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
118 bridges with a recorded construction year, grouped by decade
1910–1919
1 bridges
1920–1929
1 bridges
1930–1939
16 bridges
1940–1949
1 bridges
1950–1959
5 bridges
1960–1969
38 bridges
1970–1979
17 bridges
1980–1989
8 bridges
1990–1999
16 bridges
2000–2009
7 bridges
2010–2019
5 bridges
2020–2029
3 bridges
What this shows Construction peaked in the 1960s, when 38 of the county's bridges still in the inventory were built, which is 32.2% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1972, 5 years older than the Nebraska average of 1977.
The 5 Nebraska counties nearest Sherman County in number of bridges, with their condition splits. Its 3.4% Poor share is the 3rd-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 87 Nebraska counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Clay County | 134 | 66.4% | 27.6% | 6% | 1975 |
| Sherman County (this page) | 118 | 57.6% | 39% | 3.4% | 1972 |
| Valley County | 115 | 80.9% | 19.1% | 0% | 1981 |
| Franklin County | 104 | 58.7% | 38.5% | 2.9% | 1977 |
| Frontier County | 96 | 59.4% | 20.8% | 19.8% | 1970 |
| Polk County | 94 | 57.4% | 30.9% | 11.7% | 1975 |
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 Sherman County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Sherman County, both outside Nebraska so the neighborhoods are not the same-state size table above.
Nearest county inventories outside NE (118 bridges here).
Nearest mean year-built outside NE (1972 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: WIGGLE CREEK
4.2S 1W OF LOUP CITY, Sherman, NE
Over: MUD CREEK
.5W .2S OF HAZARD, Sherman, NE
Over: MUD CREEK
.5W 2N OF HAZARD, Sherman, NE
Over: MOON CREEK
2W .9N OF LOUP CITY, Sherman, NE
Over: MUD CREEK
.5S OF HAZARD, Sherman, NE
Over: CLEAR CREEK
.2S 10.3W OF LOUP CITY, Sherman, NE
Over: DRY CREEK
5.7E HAZARD, Sherman, NE
Over: TURKEY CREEK
2.3E 2.2N OF AHSTON, Sherman, NE
Over: STREAM
3N 2.5E ROCKVILLE, Sherman, NE
Over: SHERMAN RESERVOIR CANAL
EJCT N58/N92 6.2N, Sherman, NE
Over: STREAM
ASHTON ST FRANCIS @BURTON, Sherman, NE
Over: DEAD HORSE CREEK
LOUP CITY 7TH @ R, Sherman, NE
Over: STREAM
1.5S OF LITCHFIELD, Sherman, NE
Over: STREAM
3S 1.5W OF LITCHFIELD, Sherman, NE
Over: DEER CREEK
.5W 5.3S ASHTON, Sherman, NE
Over: DEER CREEK
3.1E 2N OF ROCKVILLE, Sherman, NE
Over: COB CREEK
7W LOUP CITY, Sherman, NE
Over: COLE CREEK
WJCT N58/N92 3.2N, Sherman, NE
Over: FARWELL SOUTH CANAL
.9S OF ASHTON, Sherman, NE
Over: FARWELL SOUTH CANAL
3E 4.1N OF ROCKVILLE, Sherman, NE
Over: CLEAR CREEK
11E ANSLEY, Sherman, NE
Over: HAYS CREEK
7.2 NW OF LOUP CITY, Sherman, NE
Over: MUD CREEK
.5W OF HAZARD, Sherman, NE
Over: WIGGLE CREEK
5.2S .1W OF LOUP CITY, Sherman, NE
Over: SHERMAN RESERVOIR CANAL
3.1W 7.2N OF LOUP CITY, Sherman, NE
Over: FARWELL SOUTH CANAL
.5S .2W OF ASHTON, Sherman, NE
Over: OAK CREEK
1E 1.9S OF ASHTON, Sherman, NE
Over: STREAM
0N LOUP CITY, Sherman, NE
Over: FARWELL SOUTH CANAL
2W ASHTON, Sherman, NE
Over: OAK CREEK
ASHTON, Sherman, NE
Over: STREAM
11E ANSLEY, Sherman, NE
Over: SHERMAN RESERVOIR CANAL
5.5N OF LOUP CITY, Sherman, NE
Over: MIDDLE LOUP RIVER
2W LOUP CITY, Sherman, NE
Over: CLEAR CREEK
2E .7S OF LITCHFIELD, Sherman, NE
Over: FARWELL SOUTH CANAL
EJCT N58/N92 .8S 6.3E, Sherman, NE
Over: OAK CREEK
.5S .4E OF ASHTON, Sherman, NE
Over: DEER CREEK
4.5S .2W OF ASHTON, Sherman, NE
Over: STREAM
5.5NW OF LOUP CITY, Sherman, NE
Over: FARWELL SOUTH CANAL
4.2E 1N OF LOUP CITY, Sherman, NE
Over: WIGGLE CREEK
4.5S 1.2E OF LOUP CITY, Sherman, NE
Over: MUD CREEK
2E 1.5S OF LITCHFIELD, Sherman, NE
Over: DEER CREEK
JCT N58/N68 .2E 5.1N, Sherman, NE
Over: FARWELL MAIN CANAL
4.9E 1N OF LOUP CITY, Sherman, NE
Over: FARWELL MAIN CANAL
1.5W 3N OF ASHTON, Sherman, NE
Over: ROCK CREEK
.4W .9N OF ROCKVILLE, Sherman, NE
Over: BLOODY RUN CREEK
3.1E 1.2S OF HAZARD, Sherman, NE
Over: BLOODY RUN CREEK
3E OF HAZARD, Sherman, NE
Over: CLEAR CREEK
1E 1.1N OF LITCHFIELD, Sherman, NE
Over: STREAM
WJCT N58/N92 7N 7.6W, Sherman, NE
Over: MOON CREEK
WJCT N58/N92 2W .8N, Sherman, NE
Read our methodology - how this data is sourced, computed, and verified.
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.