Total bridges
91
Public highway bridges in Keith County
County profile · official public datasets
Keith County, NE
91 public highway bridges tracked in the FHWA National Bridge Inventory: 76.9% rated Good, 23.1% Fair, 0% Poor.
- 91
- Public bridges
- 76.9%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Keith County pairs a top-5% lowest Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 2%
- lowest Poor share in state
- 0%
- Poor-condition share
- 91
- 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.
Keith County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Keith County ranks #2 of 88 Nebraska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Keith County, Nebraska contains 91 public highway bridges. Roughly 76.9% are rated “Good,” 23.1% “Fair,” and 0% “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.
Good condition
76.9%
70 of 91 rated 7-9
Fair condition
23.1%
21 of 91 rated 5-6
Poor condition
0%
0 of 91 rated 4 or below
In-state Poor-share rank
#2 of 88
Among Nebraska counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 91 NBI-tracked bridges by lowest applicable component rating.
Good 76.9% (70)
Fair 23.1% (21)
Poor 0% (0)
65.9% of Keith County's bridges have passed the 50-year mark
60 of the 91 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 76.9% 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.
When Keith County's bridges were built
91 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 8
1930–1939
8 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s 1
1950–1959
1 bridges
- 1960s
1960–1969
34 bridges
- 1970s
1970–1979
20 bridges
- 1980s 11
1980–1989
11 bridges
- 1990s 7
1990–1999
7 bridges
- 2000s 6
2000–2009
6 bridges
- 2010s 1
2010–2019
1 bridges
What this shows Construction peaked in the 1960s, when 34 of the county's bridges still in the inventory were built, which is 37.4% 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.
How Keith County compares with Nebraska's closest counties by inventory size
The 5 Nebraska counties nearest Keith County in number of bridges, with their condition splits. Its 0% Poor share is the 2nd-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1970 is in line with the group.
Showing the 5 closest of 87 Nebraska counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Polk County | 94 | 57.4% | 30.9% | 11.7% | 1975 |
| Harlan County | 92 | 63% | 27.2% | 9.8% | 1969 |
| Dawes County | 91 | 67% | 22% | 11% | 1965 |
| Morrill County | 91 | 72.5% | 27.5% | 0% | 1969 |
| Keith County (this page) | 91 | 76.9% | 23.1% | 0% | 1972 |
| Kimball County | 88 | 70.5% | 28.4% | 1.1% | 1971 |
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 Keith 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 Keith County, both outside Nebraska so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NE (91 bridges here).
- Baxter County, AR · 91 bridges
- Breckinridge County, KY · 91 bridges
- Reynolds County, MO · 91 bridges
- Lee County, SC · 91 bridges
Similar average build year
Nearest mean year-built outside NE (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.
Fair-condition bridges (21)
COLL 7254
FairOver: SUTHERLAND CANAL
JCT US30/L-51C .5W 1.9N, Keith, NE
Built 1964 Load: 15.0 t ADT: 115
FAS 1210
FairOver: WESTERN CANAL
JCT I80/L-51A .7W 1.8S, Keith, NE
Built 1970 Load: 17.0 t ADT: 160
COUNTY HIGHWAY
FairOver: SOUTH PLATTE RIVER CANAL
1S 1.5W OF PAXTON, Keith, NE
Built 1935 Load: 19.0 t ADT: 10
COUNTY HIGHWAY
FairOver: WESTERN CANAL
4S US30 DEUEL CL, Keith, NE
Built 1983 Load: 22.0 t ADT: 215
COUNTY HIGHWAY
FairOver: STREAM
.7S 7W OF PAXTON, Keith, NE
Built 1961 Load: 22.0 t ADT: 10
COUNTY HIGHWAY
FairOver: I80
4E PAXTON INTRCHG, Keith, NE
Built 1967 Load: 23.0 t ADT: 5
COUNTY HIGHWAY
FairOver: SUTHERLAND CANAL
2.5SE OF KEYSTONE, Keith, NE
Built 1969 Load: 24.0 t ADT: 10
L51C PAXTON CNLK
FairOver: I80
PAXTON INTRCHG, Keith, NE
Built 1967 Load: 24.0 t ADT: 1,375
WWTP ACCESS ROAD
FairOver: STREAM
JCT US26/US30 1.3E .2S, Keith, NE
Built 1984 Load: 24.0 t ADT: 20
COUNTY HIGHWAY
FairOver: STREAM
7SW OF BRULE, Keith, NE
Built 1935 Load: 25.0 t ADT: 120
NB-US26/N61
FairOver: RR ST/UPRR 815-472-A
IN OGALLALA, Keith, NE
Built 1968 Load: 27.0 t ADT: 9,495
COUNTY HIGHWAY
FairOver: WESTERN CANAL
3.2S 2.5W OF BRULE, Keith, NE
Built 1961 Load: 29.0 t ADT: 20
SB-US26/N61
FairOver: RRST/UPRR 815-472-A
IN OGALLALA, Keith, NE
Built 1998 Load: 31.0 t ADT: 9,495
FAS 1210
FairOver: SOUTH PLATTE RIVER CANAL
JCT I80/L-51C .3S, Keith, NE
Built 1935 Load: 33.0 t ADT: 85
FAS 1345
FairOver: NORTH PLATTE RIVER
JCT US30/L-51B 1W 5.8N, Keith, NE
Built 1979 Load: 33.0 t ADT: 465
COUNTY HIGHWAY
FairOver: WESTERN CANAL
3E 1S BRULE, Keith, NE
Built 1975 Load: 34.0 t ADT: 20
I80
FairOver: SOUTH PLATTE RIVER CANAL
5W PAXTON INTRCHG, Keith, NE
Built 1968 Load: 34.0 t ADT: 16,490
I80
FairOver: SOUTH PLATTE RIVER CANAL
5W PAXTON INTRCHG, Keith, NE
Built 1968 Load: 34.0 t ADT: 16,490
L51C PAXTON CNLK
FairOver: SOUTH PLATTE RIVER
0S PAXTON, Keith, NE
Built 1973 Load: 37.0 t ADT: 1,375
US26/N61
FairOver: SOUTH PLATTE RIVER
0S OGALLALA, Keith, NE
Built 1967 Load: 41.0 t ADT: 11,690
COLL 7245
FairOver: WESTERN CANAL
1S 4E BRULE, Keith, NE
Built 1979 Load: 42.0 t ADT: 40
Read our methodology - how this data is sourced, computed, and verified.
Related
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.