Total bridges
152
Public highway bridges in Thurston County
County profile · official public datasets
152 public highway bridges tracked in the FHWA National Bridge Inventory: 48.7% rated Good, 30.9% Fair, 20.4% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Thurston County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge 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, Thurston County ranks #83 of 88 Nebraska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 20.4%). Thurston County, Nebraska contains 152 public highway bridges. Roughly 48.7% are rated “Good,” 30.9% “Fair,” and 20.4% “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
152
Public highway bridges in Thurston County
Good condition
48.7%
74 of 152 rated 7-9
Fair condition
30.9%
47 of 152 rated 5-6
Poor condition
20.4%
31 of 152 rated 4 or below
In-state Poor-share rank
#83 of 88
Among Nebraska counties with 5+ bridges, lower share ranks better
Share of 152 NBI-tracked bridges by lowest applicable component rating.
That is 18.8% of the county's reported daily bridge traffic on 20.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 501 crossings a day against 391 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 152 of 152 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
60 of the 152 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 48.7% 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.
IRR/US77 over STREAM, built 1939, carries 6,565 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 31-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 15,533 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
152 bridges with a recorded construction year, grouped by decade
1900–1909
2 bridges
1910–1919
3 bridges
1920–1929
1 bridges
1930–1939
27 bridges
1940–1949
4 bridges
1950–1959
14 bridges
1960–1969
9 bridges
1970–1979
5 bridges
1980–1989
9 bridges
1990–1999
18 bridges
2000–2009
20 bridges
2010–2019
31 bridges
2020–2029
9 bridges
What this shows Construction peaked in the 2010s, when 31 of the county's bridges still in the inventory were built, which is 20.4% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year (1980) matches the Nebraska average (1977).
The 5 Nebraska counties nearest Thurston County in number of bridges, with their condition splits. Its 20.4% Poor share is the 6th-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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Howard County | 161 | 29.2% | 64.6% | 6.2% | 1977 |
| Cheyenne County | 159 | 82.4% | 16.4% | 1.3% | 1973 |
| Thurston County (this page) | 152 | 48.7% | 30.9% | 20.4% | 1980 |
| Washington County | 149 | 76.5% | 20.8% | 2.7% | 1989 |
| Nance County | 148 | 54.1% | 40.5% | 5.4% | 1973 |
| Dixon County | 146 | 34.2% | 56.2% | 9.6% | 1978 |
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 Thurston County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Thurston County, both outside Nebraska so the neighborhoods are not the same-state size table above.
Nearest county inventories outside NE (152 bridges here).
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.
Over: LOGAN CREEK DREDGE TRIB
2N 4W OF THURSTON, Thurston, NE
Over: SOUTH OMAHA CREEK
1.5NE OF ROSALIE, Thurston, NE
Over: RATTLESNAKE CREEK
1.5N 2.5W OF PENDER, Thurston, NE
Over: LOGAN CREEK
JCT N9/S-87A 2.5W, Thurston, NE
Over: MIDDLE CREEK
.7S OF THURSTON, Thurston, NE
Over: STREAM
JCT N9/S-87A 4N .2E, Thurston, NE
Over: MIDDLE CREEK
1.2S OF THURSTON, Thurston, NE
Over: MIDDLE CREEK
1N OF THURSTON, Thurston, NE
Over: SOUTH BLACKBIRD CREEK
JCT US77/S-87B 6E, Thurston, NE
Over: MIDDLE CREEK TRIB
9N PENDER, Thurston, NE
Over: STAGE CREEK
1SE PENDER, Thurston, NE
Over: STREAM
19N DECATUR, Thurston, NE
Over: COW CREEK
2.5E .2N OF THURSTON, Thurston, NE
Over: LOGAN CREEK TRIBUTARY
3W PENDER, Thurston, NE
Over: RATTLESNAKE CREEK
7W PENDER, Thurston, NE
Over: NORTH BLACKBIRD CREEK
2S 3.5E OF WINNEBAGO, Thurston, NE
Over: MIDDLE CREEK
JCT N9/S-87A 1.8E, Thurston, NE
Over: RATTLESNAKE CREEK
4.5W OF PENDER, Thurston, NE
Over: SOUTH BLACKBIRD CREEK
8N DECATUR, Thurston, NE
Over: UNNAMED CANAL
50M W OF NE HWY 77, Thurston, NE
Over: NORTH OMAHA CR TRIB
5.7W 2N OF WINNEBAGO, Thurston, NE
Over: STREAM
1.5S 4W OF EMERSON, Thurston, NE
Over: LOGAN CREEK DREDGE TRIB
2W OF PENDER, Thurston, NE
Over: STREAM
1.5E OF THURSTON, Thurston, NE
Over: LOGAN CR DREDGE TRIB
4E .1S OF PENDER, Thurston, NE
Over: RATTLESNAKE CREEK
3.5W 1N OF PENDER, Thurston, NE
Over: BIG SLOUGH CREEK
3N 3W OF ROSALIE, Thurston, NE
Over: STREAM
2S 3.5W OF WALTHILL, Thurston, NE
Over: STREAM
1.5SE OF ROSALIE, Thurston, NE
Over: STREAM
1.5S .2E OF ROSALIE, Thurston, NE
Over: SOUTH BLACKBIRD CREEK
1.5S 7.5E OF ROSALIE, Thurston, NE
Over: SOUTH OMAHA CREEK
.5S OF WINNEBAGO, Thurston, NE
Over: MIDDLE CREEK TRIB
2S 1W OF EMERSON, Thurston, NE
Over: STREAM
1E 1N OF PENDER, Thurston, NE
Over: LOGAN CR DREDGE TRIB
3.2E OF PENDER, Thurston, NE
Over: SOUTH OMAHA CREEK
JCT US77/S-87B 2W 1.9N, Thurston, NE
Over: NORTH OMAHA CREEK
1.5N OF WALTHILL, Thurston, NE
Over: NORTH OMAHA CREEK
3S 3.5W OF WINNEBAGO, Thurston, NE
Over: NORTH OMAHA CREEK
4.5W OF WINNEBAGO, Thurston, NE
Over: STREAM
3N PENDER, Thurston, NE
Over: STREAM
4W N9 DIXON CL, Thurston, NE
Over: LOGAN CREEK
8N N16 WAYNE CL, Thurston, NE
Over: NORTH OMAHA CREEK
3S 3W OF WINNEBAGO, Thurston, NE
Over: STREAM
.5S 6.2E OF ROSALIE, Thurston, NE
Over: COW CREEK
JCT N9/S-87A 7.1E, Thurston, NE
Over: STREAM
4.2W OF WINNEBAGO, Thurston, NE
Over: RATTLESNAKE CREEK
5W PENDER, Thurston, NE
Over: NORTH BLACKBIRD CREEK
8N DECATUR, Thurston, NE
Over: MORGAN CREEK
.7S OF WINNEBAGO, Thurston, NE
Over: SOUTH OMAHA CREEK
4S OF WALTHILL, Thurston, 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.