County profile · official public datasets

Uintah County, UT

91 public highway bridges tracked in the FHWA National Bridge Inventory: 31.9% rated Good, 64.8% Fair, 3.3% Poor.

91
Public bridges: 31.9%
Good condition: 3.3%
Poor condition

The verdict

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

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

18th
of 29 on Poor share: 3.3%
Poor-condition share: 91
public highway bridges: 1989
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.

Uintah County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Uintah County ranks #18 of 29 Utah counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.3%). Uintah County, Utah contains 91 public highway bridges. Roughly 31.9% are rated “Good,” 64.8% “Fair,” and 3.3% “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 Uintah County

Good condition

31.9%

29 of 91 rated 7-9

Fair condition

64.8%

59 of 91 rated 5-6

Poor condition

3.3%

3 of 91 rated 4 or below

In-state Poor-share rank

#18 of 29

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

Condition distribution

Share of 91 NBI-tracked bridges by lowest applicable component rating.

Good

31.9% (29)

Fair

64.8% (59)

Poor

3.3% (3)

Uintah County's Poor-condition bridges carry 149 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 3.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 50 crossings a day against 598 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 91 of 91 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

27.5% of Uintah County's bridges have passed the 50-year mark

25 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 31.9% 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.

One structure carries 87.9% of the county's Poor-condition bridge traffic

COUNTY ROAD over BRUSH CREEK CANAL, built 1985, carries 131 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 149 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

1
1940s

1
1950s

10
1960s

9
1970s

8
1980s

13
1990s

11
2000s

13
2010s

23
2020s

2

What this shows Construction peaked in the 2010s, when 23 of the county's bridges still in the inventory were built, which is 25.3% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year is 1989, 5 years newer than the Utah average of 1984.

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

The 5 Utah counties nearest Uintah County in number of bridges, with their condition splits. Its 3.3% Poor share is the 4th-lowest of these 6. Its average build year of 1989 against a peer-group mean of 1978 is 11 years newer.

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

Bridge inventory size and condition shares for Uintah 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	94	22.3%	74.5%	3.2%	1977
Uintah County (this page)	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 Uintah 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 Uintah County, both outside Utah so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside UT (91 bridges here).

Baxter County, AR · 91 bridges
Breckinridge County, KY · 91 bridges
Reynolds County, MO · 91 bridges
Dawes County, NE · 91 bridges

Similar average build year

Nearest mean year-built outside UT (1989 here).

Harris County, TX · avg 1989 · 4,029 bridges
Mecklenburg County, NC · avg 1989 · 746 bridges
Buffalo County, NE · avg 1989 · 459 bridges
Brazos County, TX · avg 1989 · 370 bridges

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

All 91 Good 29 Fair 59 Poor 3

All bridges (91)

Sort:

Uintah County Bridge Snapshot

Condition distribution

Uintah County's Poor-condition bridges carry 149 vehicle crossings a day

27.5% of Uintah County's bridges have passed the 50-year mark

One structure carries 87.9% of the county's Poor-condition bridge traffic

How Uintah 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 (91)

US-40 (SR-40)

COUNTY ROAD

RED CLOUD LOOP

COUNTY ROAD

SR-45

SR-88

2000 NORTH ST.-CO.

COUNTY ROAD

SR-45

SR-45

COUNTY ROAD

US-40 (SR-40)

US-40 (SR-40)

US-40 (SR-40)

COUNTY ROAD

IRR BIA RTE 12

3500 WEST ST. -CO.

COUNTY ROAD

COUNTY ROAD

2500 WEST ST. -CO.

COUNTY ROAD

SR-121

BLUE MOUNTAIN ROAD

500 NORTH ST. -CO.

COUNTY ROAD

IRR BIA RTE 2

1500 EAST ST.-CO.

COUNTY ROAD

750 NORTH STREET

2500 SOUTH ST.-CO.

COUNTY ROAD

1500 WEST ST. -CO.

US-191 (SR-191)

IRR BIA RTE 13

IRR BIA RTE 39

COUNTY ROAD

US-40 (SR-40)

US-40 (SR-40)

COUNTY ROAD

SR-45

COUNTY ROAD

COUNTY ROAD

1500 WEST ST.

SR-121

SR-121

COUNTY ROAD

SR-45

SR-121

US-40 (SR-40)

CITY STREET

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