State profile · Below national median SD

Utah bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Utah — drawn straight from the FHWA National Bridge Inventory.

3,126
Public bridges
16.7%
Good condition
2.4%
Poor condition
2.4%
Structurally deficient

Total Bridges

3,126

Public highway bridges in Utah

Good Condition

16.7%

521 bridges rated 7-9

-33.3pp vs 50% benchmark

Poor Condition

2.4%

76 bridges rated 0-4

Structurally Deficient

2.4%

76 bridges flagged for repair priority

-4.6pp vs national avg 7.0%

Utah vs national bridge condition

Utah — Good condition share 16.7%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Utah — Structurally deficient share 8.1%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Utah (FHWA NBI)

Utah16.666666666666664%51.66346769033909%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Utah (FHWA NBI)

Counties (29)

Beaver 53 Box Elder 184 Cache 95 Carbon 73 Daggett 13 Davis 139 Duchesne 84 Emery 126 Garfield 94 Grand 121 Iron 70 Juab 60 Kane 29 Millard 72 Morgan 53 Piute 19 Rich 20 Salt Lake 659 San Juan 50 Sanpete 52 Sevier 157 Summit 138 Tooele 35 Uintah 92 Utah 271 Wasatch 32 Washington 177 Wayne 29 Weber 129

Utah vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Utah on the same metric.

04

Arizona

1.44% top marginal rate
Structure
Progressive
Burden @ $100K
$5,640

13

Georgia

1.49% top marginal rate
Structure
Progressive
Burden @ $100K
$15,216
Selected

49

Utah

2.43% top marginal rate
Structure
Progressive
Burden @ $100K
$3,126

50

Vermont

2.62% top marginal rate
Structure
Progressive
Burden @ $100K
$2,936

12

Florida

2.75% top marginal rate
Structure
Progressive
Burden @ $100K
$12,892

Bridges Needing Most Attention in Utah

Six lowest-condition bridges in Utah, ranked by composite NBI rating. Each is inspected at least every 24 months.

COUNTY ROAD

Poor

Over: CENTRAL UTAH CANAL

2 MILES SW. OF LEAMINGTON, Millard, UT

Built 1935 Load: 1.3 t ADT: 38

NAVAJO TRAIL

Poor

Over: BEAVER RIVER

0.5 MILE SW. OF BEAVER GC, Beaver, UT

Built 1935 Load: 1.9 t ADT: 100

COUNTY ROAD

Poor

Over: DUCHESNE RIVER

IN HANNA, Duchesne, UT

Built 1952 Load: 2.9 t ADT: 25

COUNTY ROAD

Poor

Over: BRUSH CREEK CANAL

4 MILES NORTH OF JENSEN, Uintah, UT

Built 1985 Load: 6.2 t ADT: 131

COUNTY ROAD

Structurally Deficient

Over: NORTH FORK OGDEN RIVER

1 MILE EAST OF LIBERTY, Weber, UT

Built 1972 Load: 6.2 t ADT: 2,191

15600 N.ST.,CO.RD.

Poor

Over: WEST CANAL

5800 W. 15600 N., GARLAND, Box Elder, UT

Built 1950 Load: 7.8 t ADT: 189

All Bridges in Utah

I-70 (SR-70) WBL

Unknown

Over: US-191 (SR-191)

CRESCENT JCT. INTERCHANGE, Grand, UT

Built 1976 ADT: 8,300

RD.TO HAMILTON FT.

Unknown

Over: I-15 (SR-15) NBL & SBL

2.6 MI. SO. of CEDAR CITY, Iron, UT

Built 1967 ADT: 23,880

SR-143

Unknown

Over: I-15 (SR-15) NBL AND SBL

SO.PAROWAN INTERCHANGE, Iron, UT

Built 1973 ADT: 21,585

SR-274 INT. X-ROAD

Unknown

Over: I-15 (SR-15) NBL & SBL

NORTH PAROWAN INTERCHANGE, Iron, UT

Built 1973 ADT: 18,610

SR-271,INT. X-ROAD

Unknown

Over: I-15 (SR-15) NBL & SBL

PARAGONAH INTERCHANGE, Iron, UT

Built 1975 ADT: 18,265

CENTER STREET

Unknown

Over: I-15 (SR-15) NBL AND SBL

IN CEDAR CITY, Iron, UT

Built 1968 ADT: 24,835

CO.RD.-BUCKHORN FL

Unknown

Over: I-15 (SR-15) NBL & SBL

7.6 MI.NO.PARAGONAH INTER, Iron, UT

Built 1979 ADT: 18,190

SR-20, INT.X-ROAD

Unknown

Over: I-15 (SR-15) NBL & SBL

BEAR VALLEY INTERCHANGE, Iron, UT

Built 1979 ADT: 18,190

SR-130, INT.X-ROAD

Unknown

Over: I-15 (SR-15)

NORTH CEDAR INTERCHANGE, Iron, UT

Built 2002 ADT: 24,335

County Road

Unknown

Over: I-15 (SR-15) NBL & SBL

4.2 Mi. N.of New Harmony, Iron, UT

Built 1966 ADT: 23,085

I-15(SR-15)NB, SB

Unknown

Over: CO.RD.TO KANES SPRING

3.2 MI.NO.SO.PAROWAN INT, Iron, UT

Built 1974

CO.RD.INTER X-ROAD

Unknown

Over: I-15 (SR-15) NBL AND SBL

SUMMIT INTERCHANGE, Iron, UT

Built 1970 ADT: 21,585

600 SOUTH STREET

Unknown

Over: I-15 (SR-15)

IN CEDAR CITY, Iron, UT

Built 1968 ADT: 24,835

COUNTY RD.INT.X-RD

Unknown

Over: I-15 (SR-15) NBL & S

FREMONT INTERCHANGE, Iron, UT

Built 1984 ADT: 18,840

CO.RD.-BIG FIELDS

Unknown

Over: I-15 (SR-15) NBL AND SBL

2.1 MI.NO.NO.PAROWAN INT., Iron, UT

Built 1973 ADT: 18,265

I-15 (SR-15) NBL

Unknown

Over: CO RD TO KANARRAVILLE

NO KANARRAVILLE INTERCHG., Iron, UT

Built 1966 ADT: 475

I-15 (SR-15) NBL

Unknown

Over: COUNTY ROAD-NO. FIELD

2.2 MI.NO.CEDAR CITY INT., Iron, UT

Built 1968

I-15 (SR-15) NBL

Unknown

Over: 560 NORTH STREET & U

0.7 MI.NO.CEDAR CITY INT., Iron, UT

Built 1968 ADT: 1,387

I-15 (SR-15) NBL

Unknown

Over: SR-56,200 NORTH STREET

CEDAR CITY INTERCHANGE, Iron, UT

Built 1968 ADT: 11,510

I-15 (SR-15) NBL

Unknown

Over: CITY ST. & INT. X-RO

SOUTH CEDAR CITY INTCHG., Iron, UT

Built 1967

I-15 (SR-15) NBL

Unknown

Over: CO. RD. TO PAROWAN GAP

1.5 MI.NO.SO.PAROWAN INT., Iron, UT

Built 1973

I-15 (SR-15) NBL

Unknown

Over: CO.RD. N. OF SUMMIT Int.

0.7 MI.NO.SUMMIT INTERCHG, Iron, UT

Built 1973

SR-130 SBL ONLY

Unknown

Over: I-15 (SR-15) NBL & S

SO CEDAR CITY INTERCHANGE, Iron, UT

Built 1967 ADT: 23,880

I-15 (SR-15) SBL

Unknown

Over: CO RD TO KANARRAVILLE

NO.KANARRAVILLE INTCHG., Iron, UT

Built 1966 ADT: 475

I-15 (SR-15) SBL

Unknown

Over: CITY ST. TO NO. FIELDS

2.2 MI NO CEDAR CITY INT., Iron, UT

Built 1968

I-15 (SR-15) SBL

Unknown

Over: 560 N.

0.7 MI.N.CEDAR CITY INT., Iron, UT

Built 1968

I-15 (SR-15) SBL

Unknown

Over: SR-56,200 NORTH STREET

CEDAR CITY INTERCHANGE, Iron, UT

Built 1968 ADT: 11,510

I-15 (SR-15) SBL

Unknown

Over: CITY ST. , INT. X-ROAD.

SO.CEDAR CITY INTCHG., Iron, UT

Built 1967

I-15 (SR-15) SBL

Unknown

Over: CO. RD. TO PAROWAN GAP

1.5 MI.NO.SO.PAROWAN INT., Iron, UT

Built 1973

I-15 (SR-15) SBL

Unknown

Over: CO.RD. NO.of SUMMIT INT.

0.7 MI.NO.SUMMIT INTCHG., Iron, UT

Built 1973

Coal Creek Road

Unknown

Over: I-15

1 Mi No Cedar City Int, Iron, UT

Built 2021 ADT: 30,000

I-15 NB

Unknown

Over: East Nichols Canyon Road

I-15 NB over E Nichols Rd, Iron, UT

Built 2021 ADT: 500

I-15 SB

Unknown

Over: East Nichols Canyon Road

I-15 SB over E Nichols Rd, Iron, UT

Built 2021 ADT: 500

COUNTY ROAD

Unknown

Over: I-15 (SR-15) NBL AND SBL

NORTH OF NO. NEPHI INT., Juab, UT

Built 1982 ADT: 19,920

SR-28

Unknown

Over: I-15 (SR-15) NBL & S

NORTH NEPHI INTERCHANGE, Juab, UT

Built 1984 ADT: 17,095

CO.RD.,UP&L AC

Unknown

Over: I-15 (SR-15) NBL & S

1 MI.SO.MONA INTERCHANGE, Juab, UT

Built 1974 ADT: 19,920

CO.RD.INTCHG.X-RD.

Unknown

Over: I-15 (SR-15) NBL & S

YUBA STATE PARK INTERCHG., Juab, UT

Built 1982 ADT: 17,450

I-15 (SR-15) NBL

Unknown

Over: CO. RD. TO NORTH CANYON

2 MI. NO. OF MONA INTCHG., Juab, UT

Built 1974

I-15 (SR-15) NBL

Unknown

Over: SR-54, INTCHG. X-ROAD

MONA INTERCHANGE, Juab, UT

Built 1974

I-15 (SR-15) NBL

Unknown

Over: CO. RD. NEAR STEEL RANCH

5.4 MI.NO. OF MONA INTCHG, Juab, UT

Built 1974

I-15 (SR-15) NBL

Unknown

Over: SR-28, INTCHG. X-RD

SOUTH NEPHI INTERCHANGE, Juab, UT

Built 1983 ADT: 4,535

I-15 (SR-15) NBL

Unknown

Over: SR-132, INTCHG. X-ROAD

EAST SIDE OF NEPHI, Juab, UT

Built 1982 ADT: 3,270

I-15 (SR-15) NBL

Unknown

Over: COUNTY ROAD

.5 MI.SO.SO.NEPHI INTCHG., Juab, UT

Built 1984 ADT: 205

I-15 (SR-15) NBL

Unknown

Over: COUNTY RD.TO SAGE VALLEY

6 MI.NO.MILLS JCT.INTCHG., Juab, UT

Built 1984

I-15 (SR-15) NBL

Unknown

Over: CNTY.RD. AND DRAIN CANAL

12 MI.NO.MILLS JCT.INTCHG, Juab, UT

Built 1984

I-15 (SR-15) NBL

Unknown

Over: SR-78, INTCHG. X-ROAD

AT MILLS JCT. INTERCHANGE, Juab, UT

Built 1985 ADT: 680

I-15 (SR-15) NBL

Unknown

Over: COUNTY RD.TO WIDE CANYON

10 MI.NO.MILLS JCT.INTCHG, Juab, UT

Built 1984

I-15 (SR-15) NBL

Unknown

Over: 700 NORTH STREET, NEPHI

NO.EAST SIDE OF NEPHI, Juab, UT

Built 1982 ADT: 1,021

I-15 (SR-15) NBL

Unknown

Over: COUNTY RD.TO LAMPSON CY.

8 MI.NO.MILLS JCT.INTCHG., Juab, UT

Built 1984

I-15 (SR-15) SBL

Unknown

Over: CO. RD. TO NORTH CANYON

2 MI. NO. of MONA INTCHG., Juab, UT

Built 1974

Showing 201-250 of 3,126 bridges

Related

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Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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