Total bridges
34
Public highway bridges in Bear Lake County
County profile · official public datasets
Bear Lake County, ID
34 public highway bridges tracked in the FHWA National Bridge Inventory: 41.2% rated Good, 58.8% Fair, 0% Poor.
- 34
- Public bridges
- 41.2%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Bear Lake County pairs a top-quartile lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 14%
- lowest Poor share in state
- 0%
- Poor-condition share
- 34
- public highway bridges
- 1985
- 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.
Bear Lake County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Bear Lake County ranks #6 of 44 Idaho counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Bear Lake County, Idaho contains 34 public highway bridges. Roughly 41.2% are rated “Good,” 58.8% “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
41.2%
14 of 34 rated 7-9
Fair condition
58.8%
20 of 34 rated 5-6
Poor condition
0%
0 of 34 rated 4 or below
In-state Poor-share rank
#6 of 44
Among Idaho counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 34 NBI-tracked bridges by lowest applicable component rating.
Good 41.2% (14)
Fair 58.8% (20)
Poor 0% (0)
41.2% of Bear Lake County's bridges have passed the 50-year mark
14 of the 34 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 41.2% 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 Bear Lake County's bridges were built
34 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1950s 1
1950–1959
1 bridges
- 1960s
1960–1969
5 bridges
- 1970s
1970–1979
7 bridges
- 1980s
1980–1989
4 bridges
- 1990s
1990–1999
3 bridges
- 2000s
2000–2009
6 bridges
- 2010s
2010–2019
5 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1970s, when 7 of the county's bridges still in the inventory were built, which is 20.6% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year is 1985, 6 years newer than the Idaho average of 1979.
How Bear Lake County compares with Idaho's closest counties by inventory size
The 5 Idaho counties nearest Bear Lake County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1979 is 6 years newer.
Showing the 5 closest of 43 Idaho counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Caribou County | 45 | 26.7% | 66.7% | 6.7% | 1985 |
| Clark County | 40 | 22.5% | 65% | 12.5% | 1977 |
| Teton County | 37 | 43.2% | 51.4% | 5.4% | 1992 |
| Bear Lake County (this page) | 34 | 41.2% | 58.8% | 0% | 1985 |
| Butte County | 32 | 31.3% | 68.8% | 0% | 1969 |
| Franklin County | 23 | 13% | 78.3% | 8.7% | 1974 |
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 Bear Lake 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 Bear Lake County, both outside Idaho so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside ID (34 bridges here).
- Plaquemines County, LA · 34 bridges
- Golden Valley County, ND · 34 bridges
- Guayanilla County, PR · 34 bridges
- Jayuya County, PR · 34 bridges
Similar average build year
Nearest mean year-built outside ID (1985 here).
- Hillsborough County, FL · avg 1985 · 840 bridges
- Lancaster County, NE · avg 1985 · 661 bridges
- Nueces County, TX · avg 1985 · 528 bridges
- Grayson County, TX · avg 1985 · 513 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (34)
AIRPORT ROAD
FairOver: BEAR RIVER
2.2 N. 1.1 W. DINGLE, Bear Lake, ID
Built 1916 Load: 6.4 t ADT: 50
THOMAS FORK LANE
FairOver: THOMAS FK.CR;SE.GENEVA B
1.0 S. 0.3 E. GENEVA, Bear Lake, ID
Built 1986 Load: 16.3 t ADT: 30
COUNTY ROAD
FairOver: BEAR RIVER
0.8 N. 1.7 W. BENNINGTON, Bear Lake, ID
Built 1984 Load: 22.7 t ADT: 70
ST CHARLES RD
FairOver: ST CHARLES CREEK
NO DATA ENTERED, Bear Lake, ID
Built 1967 Load: 24.0 t ADT: 200
100 WEST ST
FairOver: ST. CHARLES CR N. BRIDGE
IN CITY OF ST. CHARLES, Bear Lake, ID
Built 1920 Load: 24.5 t ADT: 50
US 89
FairOver: UPRR;12TH ST.;MONTPELIER
IN MONTPELIER, Bear Lake, ID
Built 1971 Load: 25.4 t ADT: 4,600
US 89
FairOver: ST CHARLES CR.;S.BRANCH
IN ST CHARLES, Bear Lake, ID
Built 1956 Load: 29.0 t ADT: 1,200
STC 1809;DINGLE RD
FairOver: BEAR RIVER;N.DINGLE BR.
2.3 N. DINGLE, Bear Lake, ID
Built 1966 Load: 29.0 t ADT: 460
HUNTER HILL ROAD
FairOver: BEAR RIVER;E.DINGLE BR
0.6 N. 1.0 E. DINGLE, Bear Lake, ID
Built 1989 Load: 31.8 t ADT: 140
STC 1811;PEGRAM RD
FairOver: BEAR RIVER;PEGRAM BRIDGE
0.8 W. PEGRAM, Bear Lake, ID
Built 1970 Load: 32.7 t ADT: 100
STC 1809; N BEACH
FairOver: BEAR LAKE OUTLET CANAL
3.8 E. ST CHARLES, Bear Lake, ID
Built 1968 Load: 33.6 t ADT: 1,200
BERN ROAD
FairOver: BEAR RIVER;BERN BRIDGE
0.7 S. 1.7 E. BERN, Bear Lake, ID
Built 1973 Load: 33.6 t ADT: 300
US 30
FairOver: THOMAS FORK CREEK
1.2 W. IDA-WYO LINE, Bear Lake, ID
Built 1964 Load: 34.5 t ADT: 1,200
NOUNAN ROAD
FairOver: BEAR R;W.GEORGETOWN BR
1.4 S. 0.8 W. GEORGETOWN, Bear Lake, ID
Built 1974 Load: 35.4 t ADT: 180
PEGRAM ROAD
FairOver: BEAR RIVER;W.BORDER BR.
0.2 S. 0.4 W. BORDER WYO., Bear Lake, ID
Built 1978 Load: 36.3 t ADT: 30
US 89
FairOver: THOMAS FORK CREEK EAST
0.4 E. GENEVA, Bear Lake, ID
Built 1993 Load: 37.2 t ADT: 660
CREAMERY LANE
FairOver: BEAR RIVER
0.1 N. 1.8 W. GEORGETOWN, Bear Lake, ID
Built 2005 Load: 37.2 t ADT: 100
SH 36
FairOver: NORTH CREEK
0.2 E. LIBERTY, Bear Lake, ID
Built 1983 Load: 39.0 t ADT: 890
STC 1809; N BEACH
FairOver: RAINBOW CANAL;MUD LAKE
0.8 N. 4.5 E. ST CHARLES, Bear Lake, ID
Built 1968 Load: 39.9 t ADT: 1,200
US 89
FairOver: BEAR LAKE CANAL
2.7 W. MONTPELIER, Bear Lake, ID
Built 1973 Load: 45.4 t ADT: 3,000
JERICHO LOOP RD
GoodOver: ST CHARLES CREEK
0.9 W. ST. CHARLES, Bear Lake, ID
Built 2023 Load: 32.7 t ADT: 30
PARIS BOTTOMS ROAD
GoodOver: BEAR LAKE OUTLET CANAL
0.4 N. 2.3 E. PARIS, Bear Lake, ID
Built 2009 Load: 34.5 t ADT: 190
US 89
GoodOver: MONTPELIER CK;UPPER NRWS
4.3 E MONTPELIER, Bear Lake, ID
Built 2008 Load: 35.4 t ADT: 1,300
W CENTER ST
GoodOver: RAINBOW CANAL
1.4 W. DINGLE, Bear Lake, ID
Built 1996 Load: 36.3 t ADT: 120
US 89
GoodOver: ST CHARLES CREEK
IN ST CHARLES, Bear Lake, ID
Built 2013 Load: 37.9 t ADT: 1,800
US 89
GoodOver: BEAR RIVER
2.0 W. MONTPELIER, Bear Lake, ID
Built 1973 Load: 39.0 t ADT: 3,500
US 89
GoodOver: OVID CREEK
3.69 N. PARIS, Bear Lake, ID
Built 2019 Load: 43.4 t ADT: 2,000
US 89
GoodOver: THOMAS FORK CREEK
2.6 N. GENEVA, Bear Lake, ID
Built 1993 Load: 43.5 t ADT: 1,200
US 89
GoodOver: OVID CREEK
4.9 W. MONTPELIER, Bear Lake, ID
Built 2014 Load: 44.7 t ADT: 3,000
US 89
GoodOver: OVID CREEK
3.77 N. PARIS, Bear Lake, ID
Built 2019 Load: 46.3 t ADT: 2,000
US 30
GoodOver: GEORGETOWN CREEK
IN GEORGETOWN, Bear Lake, ID
Built 2016 Load: 53.1 t ADT: 3,400
FOREST ROAD 30413
GoodOver: FISH HAVEN CREEK
NO DATA ENTERED, Bear Lake, ID
Built 2006 Load: 60.3 t ADT: 50
US 89
GoodOver: MONTPELIER CREEK
7.0 E. MONTPELIER, Bear Lake, ID
Built 2003 Load: 81.6 t ADT: 1,300
US 89
GoodOver: MONTPELIER CK;LOWER NRWS
4.1 E. MONTPELIER, Bear Lake, ID
Built 2008 Load: 99.9 t ADT: 1,300
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.