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

91

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.

When Uintah County's bridges were built

91 bridges with a recorded construction year, grouped by decade

bridges

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.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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 Poor
Cache County 95 6.3%
Garfield County 94 3.2%
Uintah County (this page) 91 3.3%
Duchesne County 84 6%
Carbon County 73 2.7%
Millard County 72 1.4%

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).

Similar average build year

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

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)

COUNTY ROAD

Fair

Over: DUCHESNE RIVER

SO. OF FORT DUCHESNE, Uintah, UT

Built 2006 Load: 51.8 t ADT: 382

COUNTY ROAD 2762

Fair

Over: DRY GULCH CREEK

4.5 MI.SO.OF FT. DUCHESNE, Uintah, UT

Built 2010 Load: 52.5 t ADT: 2,172

2000 WEST ST.

Fair

Over: SPRING DRAIN WASH

2000 WEST 450 SOUTH, Uintah, UT

Built 2010 Load: 54.8 t ADT: 2,710

COUNTY ROAD

Fair

Over: WILLOW CREEK

15.5 MILE N. OF BUCK CYN., Uintah, UT

Built 2006 Load: 58.6 t ADT: 100

COUNTY ROAD

Fair

Over: WILLOW CREEK

2 MILES NO. OF BUCK CYN., Uintah, UT

Built 2006 Load: 59.0 t ADT: 20

COUNTY ROAD

Fair

Over: UINTAH RIVER

0.5 MILE E. OF RANDLETT, Uintah, UT

Built 1982 Load: 60.6 t ADT: 2,172

500 EAST ST. -CO.

Fair

Over: ASHLEY CREEK

1000 NORTH 500 EAST ST., Uintah, UT

Built 1995 Load: 62.2 t ADT: 1,629

SEEP RIDGE ROAD

Fair

Over: CULVERT UNDERPASS

35.69 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 71.3 t ADT: 67

US-40 (SR-40)

Fair

Over: HALFWAY HOLLOW WASH

11.5 MILES WEST OF VERNAL, Uintah, UT

Built 1965 Load: 96.6 t ADT: 6,411

COUNTY ROAD #4190

Good

Over: EVACUATION CREEK

10 MILES SOUTH OF BONANZA, Uintah, UT

Built 2010 Load: 19.1 t ADT: 107

SR-121

Good

Over: ASHLEY UPPER CANAL

WEST SIDE OF MAESER, Uintah, UT

Built 1971 Load: 24.6 t ADT: 2,194

US-40 (SR-40)

Good

Over: SNAKE JOHN WASH

5.3 MI WEST COLORADO LINE, Uintah, UT

Built 1955 Load: 26.2 t ADT: 3,646

MOSBY MOUNTAIN

Good

Over: PARADISE CREEK

24 MI N LAPOINT UT, Uintah, UT

Built 2017 Load: 27.2 t ADT: 50

NO DATA ENTERED

Good

Over: NORTH FORK ASHLEY CREEK

NO DATA ENTERED, Uintah, UT

Built 2011 Load: 29.2 t ADT: 80

US-191 (SR-191)

Good

Over: PHOSPHATE MINE ROAD

17 MILES NORTH OF VERNAL, Uintah, UT

Built 1985 Load: 29.8 t ADT: 1,461

COUNTY ROAD

Good

Over: CLIFF CREEK

2 MILES NE. OF JENSEN, Uintah, UT

Built 1992 Load: 30.1 t ADT: 189

COUNTY ROAD

Good

Over: EVACUATION WASH

5 MILES SO. OF BONANZA, Uintah, UT

Built 2009 Load: 31.4 t ADT: 107

IRR BIA RTE 2

Good

Over: WHITEROCK RIVER

11 KM N OF WHITEROCKS UT, Uintah, UT

Built 1968 Load: 32.4 t ADT: 150

IRR BIA RTE 13

Good

Over: HILL CREEK

35 KM SOUTH OF OURAY, Uintah, UT

Built 2009 Load: 32.4 t ADT: 40

IRR BIA RTE 2

Good

Over: WHITEROCK RIVER

1.5KM E.OF WHITEROCKS UT, Uintah, UT

Built 2021 Load: 32.6 t ADT: 100

SEEP RIDGE ROAD

Good

Over: CULVERT UNDERPASS

38.58 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 35.0 t ADT: 67

BOX CAR BRIDGE RD

Good

Over: WILLOW CREEK

3.5 MILES SW. OF SR-88, Uintah, UT

Built 2013 Load: 36.3 t ADT: 1,000

SR 45

Good

Over: Mining Trench

SR 45 @ Bonanza, Uintah, UT

Built 2016 Load: 37.6 t ADT: 481

SEEP RIDGE RD

Good

Over: WHITE RIVER

2 MILES SOUTH OF OURAY, Uintah, UT

Built 2020 Load: 40.5 t ADT: 63

SEEP RIDGE ROAD

Good

Over: CULVERT UNDERPASS

39.59 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 41.5 t ADT: 67

ENTRANCE ROAD

Good

Over: UNNAMED DRAINAGE

3 MI NE OF REFUGE HQ, Uintah, UT

Built 1998 Load: 41.7 t ADT: 50

EAST PARK CG

Good

Over: LITTLE BRUSH CREEK

.4 MI N JCT 10020, Uintah, UT

Built 2017 Load: 43.4 t ADT: 50

NO DATA ENTERED

Good

Over: BIG BRUSH CREEK

NO DATA ENTERED, Uintah, UT

Built 2011 Load: 44.4 t ADT: 50

1500 SO. STREET

Good

Over: ASHLEY CREEK

1.5 MILES EAST OF NAPLES, Uintah, UT

Built 2004 Load: 45.7 t ADT: 32

SR-149

Good

Over: BRUSH CREEK

2.7 MI. NO. OF JCT. US-40, Uintah, UT

Built 2018 Load: 45.7 t ADT: 1,087

500 WEST ST. -CO.

Good

Over: ASHLEY CREEK

1320 NORTH 500 WEST ST., Uintah, UT

Built 2013 Load: 49.6 t ADT: 139

SEEP RIDGE ROAD

Good

Over: CULVERT UNDERPASS

40.31 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 52.2 t ADT: 67

SEEP RIDGE ROAD

Good

Over: CULVERT UNDERPASS

30.76 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 67.1 t ADT: 67

SEEP RIDGE ROAD

Good

Over: CULVERT UNDERPASS

33.11 MILES SO. OF OURAY, Uintah, UT

Built 2012 Load: 73.5 t ADT: 67

COUNTY ROAD

Good

Over: WESTERN FUELS RAILROAD

7 MILES NORTH OF BONANZA, Uintah, UT

Built 1982 Load: 85.5 t ADT: 448

2500 WEST ST. -CO.

Good

Over: STEINAKER CANAL

2620 NORTH 2500 WEST ST., Uintah, UT

Built 1987 Load: 96.6 t ADT: 983

US-40 (SR-40)

Good

Over: SAND SPRING WASH

0.8 MI W. OF COLORADO LN., Uintah, UT

Built 1955 Load: 96.6 t ADT: 3,646

SR-45

Good

Over: WESTERN FUELS RAILROAD

1 MI.SO.DESERET POWER PLT, Uintah, UT

Built 1982 Load: 96.6 t ADT: 859

COUNTY ROAD

Poor

Over: BRUSH CREEK CANAL

4 MILES NORTH OF JENSEN, Uintah, UT

Built 1985 Load: 6.2 t ADT: 131

COUNTY ROAD

Poor

Over: WILLOW CREEK

13 MI.S.BUCK CYN.RD.JCT., Uintah, UT

Built 1975 Load: 8.7 t ADT: 5

COUNTY ROAD

Poor

Over: WILLOW CREEK

12.5 MI.S.BUCK CYN.RD.JCT, Uintah, UT

Built 1975 Load: 19.4 t ADT: 13

Read our methodology - how this data is sourced, computed, and verified.

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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.