Washington County, UT

177 public highway bridges

Washington County Bridge Snapshot

Washington County, Utah contains 177 public highway bridges in the FHWA National Bridge Inventory. Roughly 13% are rated “Good,” 58.2% “Fair,” 1.1% “Poor,” and 1.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in UT are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

177
Total Bridges
13%
Good
1.1%
Poor
1.1%
Structurally Deficient

Condition Distribution

Good
13% (23)
Fair
58.2% (103)
Poor
1.1% (2)
SD
1.1% (2)

All Bridges (177)

SR-59

Fair

Over: GOULDS WASH

9.5 MI.NO. ARIZONA LINE, Washington, UT

Built 1978 Load: 96.6 t ADT: 5,567

I-15 (SR-15) SBL

Fair

Over: Harrisburg Creek

4.3 Mi. N. Harrisburg Int, Washington, UT

Built 1963 Load: 96.6 t

INDUSTRIAL ROAD

Good

Over: MILL CREEK

300 EAST INDUSTRIAL ROAD, Washington, UT

Built 2008 Load: 15.6 t ADT: 8,292

DIXIE DRIVE

Good

Over: GAP WASH

1500 S. DIXIE DRIVE, Washington, UT

Built 2002 Load: 18.5 t ADT: 19,993

SNOW CYN. PARKWAY

Good

Over: HALFWAY WASH

NORTH SIDE OF ST. GEORGE, Washington, UT

Built 1999 Load: 21.4 t ADT: 12,961

FOREST ROAD #30006

Good

Over: MOODY WASH

NO DATA ENTERED, Washington, UT

Built 2008 Load: 23.0 t ADT: 25

I-15NB, (SR-15)

Good

Over: SANTA CLARA RIVER

At Dixie Drive Interchang, Washington, UT

Built 2012 Load: 23.7 t ADT: 64,119

I-15SB, (SR-15)

Good

Over: SANTA CLARA RIVER

At Dixie Drive Interchang, Washington, UT

Built 2012 Load: 23.7 t ADT: 64,119

370 SOUTH

Good

Over: MIDDLETON WASH

400 S. 1990 E. St. GEORGE, Washington, UT

Built 2017 Load: 25.9 t ADT: 500

TELEGRAPH ROAD

Good

Over: COTTONWOOD WASH

AT INT. WITH LANDFILL RD., Washington, UT

Built 2001 Load: 30.8 t ADT: 7,946

SR-9

Good

Over: Quail Creek Overflow

3.4 MILES EAST I-15 INT., Washington, UT

Built 1992 Load: 32.1 t ADT: 42,037

TOWN STREET

Good

Over: ASH CREEK

SW. SIDE OF TOQUERVILLE, Washington, UT

Built 1991 Load: 32.4 t ADT: 371

I-15SB ON-RAMP

Good

Over: SANTA CLARA RIVER

At Dixie Drive Intchg., Washington, UT

Built 2012 Load: 32.7 t ADT: 8,918

I-15 (SR-15) NBL

Good

Over: SR-9

Harrisburg Interchange, Washington, UT

Built 2020 Load: 32.7 t ADT: 30,540

I-15 (SR-15) SBL

Good

Over: SR-9

Harrisburg Interchange, Washington, UT

Built 2020 Load: 32.7 t ADT: 30,540

FOREST ROAD #30006

Good

Over: LITTLE PINE CREEK

NO DATA ENTERED, Washington, UT

Built 2008 Load: 35.6 t ADT: 30

SR-7 SB

Good

Over: 4300 West

SR-7 over 4300 W, Washington, UT

Built 2022 Load: 35.6 t ADT: 4,300

I-15

Good

Over: Virgin River

S. Side of St. George, Washington, UT

Built 2017 Load: 36.0 t ADT: 44,355

RED CLIFFS RECREAT

Good

Over: Quail Creek

13 mi NE of St. George UT, Washington, UT

Built 2014 Load: 36.0 t ADT: 200

Camino Del Rio Rd

Good

Over: North Creek

Koleb Rd. oer North Creek, Washington, UT

Built 2014 Load: 38.9 t ADT: 77

I-15 NB

Good

Over: OLD US-91

I-15 NB over old US-91, Washington, UT

Built 2020 Load: 42.1 t ADT: 27,900

COUNTY RD. FA#3184

Good

Over: TOBIN WASH

1 MILE NORTH OF GUNLOCK, Washington, UT

Built 2008 Load: 61.2 t ADT: 551

1400 WEST STREET

Good

Over: HALFWAY WASH

NORTH SIDE OF ST. GEORGE, Washington, UT

Built 1999 Load: 96.6 t ADT: 2,772

2000 NORTH STREET

Good

Over: SNOW CANYON WASH

2100 W. 2000 N. ST GEORGE, Washington, UT

Built 1990 Load: 96.6 t ADT: 7,010

SR-212,TELGRPH ST.

Good

Over: MILL CREEK

In Washington City, Washington, UT

Built 2012 Load: 96.6 t ADT: 19,451

FOREST ROAD #30032

Poor

Over: LEEDS CREEK

NO DATA ENTERED, Washington, UT

Built 1968 Load: 25.9 t ADT: 50

FOREMASTER DRIVE

Structurally Deficient

Over: RIM ROCK WASH

1450 E. FOREMASTER DR., Washington, UT

Built 1998 Load: 96.6 t ADT: 15,587

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial