County profile · official public datasets

Garfield County, UT

94 public highway bridges tracked in the FHWA National Bridge Inventory: 22.3% rated Good, 74.5% Fair, 3.2% Poor.

94
Public bridges: 22.3%
Good condition: 3.2%
Poor condition

The verdict

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

Garfield County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

17th
of 29 on Poor share: 3.2%
Poor-condition share: 94
public highway bridges: 1977
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.

Garfield County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Garfield County ranks #17 of 29 Utah counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.2%). Garfield County, Utah contains 94 public highway bridges. Roughly 22.3% are rated “Good,” 74.5% “Fair,” and 3.2% “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

Public highway bridges in Garfield County

Good condition

22.3%

21 of 94 rated 7-9

Fair condition

74.5%

70 of 94 rated 5-6

Poor condition

3.2%

3 of 94 rated 4 or below

In-state Poor-share rank

#17 of 29

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

Condition distribution

Share of 94 NBI-tracked bridges by lowest applicable component rating.

Good

22.3% (21)

Fair

74.5% (70)

Poor

3.2% (3)

Garfield County's Poor-condition bridges carry 87 vehicle crossings a day

That is 0.2% of the county's reported daily bridge traffic on 3.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 29 crossings a day against 326 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 94 of 94 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

47.9% of Garfield County's bridges have passed the 50-year mark

45 of the 94 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 22.3% 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 57.5% of the county's Poor-condition bridge traffic

NFSR 30087 over KANAB CREEK, built 2005, carries 50 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 3-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 87 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

4
1940s

1
1950s

11
1960s

18
1970s

12
1980s

12
1990s

21
2000s

9
2010s

4

What this shows Construction peaked in the 1990s, when 21 of the county's bridges still in the inventory were built, which is 22.3% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1977, 7 years older than the Utah average of 1984.

How Garfield County compares with Utah's closest counties by inventory size

The 5 Utah counties nearest Garfield County in number of bridges, with their condition splits. Its 3.2% Poor share is the 3rd-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1980 is in line with the group.

Showing the 5 closest of 28 Utah counties eligible for comparison.

Bridge inventory size and condition shares for Garfield County and the 5 Utah counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Cache County	95	21.1%	72.6%	6.3%	1975
Garfield County (this page)	94	22.3%	74.5%	3.2%	1977
Uintah County	91	31.9%	64.8%	3.3%	1989
Duchesne County	84	26.2%	67.9%	6%	1984
Carbon County	73	19.2%	78.1%	2.7%	1974
Millard County	72	12.5%	86.1%	1.4%	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 Garfield 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 Garfield County, both outside Utah so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside UT (94 bridges here).

Yukon-Koyukuk County, AK · 94 bridges
Lee County, AR · 94 bridges
Huerfano County, CO · 94 bridges
Henry County, KY · 94 bridges

Similar average build year

Nearest mean year-built outside UT (1977 here).

San Diego County, CA · avg 1977 · 1,632 bridges
King County, WA · avg 1977 · 1,238 bridges
Riverside County, CA · avg 1977 · 1,117 bridges
Shelby County, TN · avg 1977 · 1,077 bridges

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

All 94 Good 21 Fair 70 Poor 3

All bridges (94)

Sort:

Garfield County Bridge Snapshot

Condition distribution

Garfield County's Poor-condition bridges carry 87 vehicle crossings a day

47.9% of Garfield County's bridges have passed the 50-year mark

One structure carries 57.5% of the county's Poor-condition bridge traffic

How Garfield County compares with Utah's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (94)

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

COUNTY ROAD

NFSR 30153

SR-95

COUNTY ROAD

COUNTY ROAD

SR-12

SR-12

SR-12

SR-12

COUNTY ROAD

SR-276

COUNTY ROAD

SR-12

SR-12

SR-12

ARTERIAL ROAD

SR-95

SR-12

SR-95

NFSR 30149

COUNTY ROAD

SR-276

COUNTY ROAD

COUNTY ROAD

SR-12

COLLECTOR ROAD

COUNTY ROAD

NFSR 30149

SR-22

COUNTY ROAD

US-89 (SR-89)

COUNTY ROAD

COUNTY ROAD

ARENA ACCESS ROAD

US-89 (SR-89)

SR-12

FOREST ROAD 30125

COUNTY ROAD

SR-276

SR-95

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