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-18, INTCHG X-RD

Unknown

Over: I-15 (SR-15) & INT.

SO.ST.GEORGE INTERCHANGE, Washington, UT

Built 1972 ADT: 44,355

WASHINGTON PARKWAY

Unknown

Over: I-15 NB AND SB

MP 13 access road, Washington, UT

Built 2005 ADT: 43,900

CO RD INTER X-ROAD

Unknown

Over: I-15 (SR-15) NB and SB

BROWSE INTERCHANGE, Washington, UT

Built 1959 ADT: 22,880

CO. RD. INT. X-RD

Unknown

Over: I-15 (SR-15) NB and SB

SNOWFIELD INTERCHANGE, Washington, UT

Built 1959 ADT: 22,630

SR-228,INTER X-RD

Unknown

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

SOUTH LEEDS INTERCHANGE, Washington, UT

Built 1962 ADT: 21,915

SR-34, INT.X-ROAD

Unknown

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

EAST ST. GEORGE INTCHANGE, Washington, UT

Built 1972 ADT: 35,765

SR-9

Unknown

Over: CORAL CANYON BOULEVARD

0.5 MI.EAST Of I-15 INT., Washington, UT

Built 1999

LEDGES INT. X-ROAD

Unknown

Over: SR-18

5 MI. NORTH OF ST.GEORGE, Washington, UT

Built 2005 ADT: 6,870

SR-7 INTCHG.X-ROAD

Unknown

Over: I-15, (SR-15)

At Southern Parkway Int., Washington, UT

Built 2010 ADT: 18,910

DIXIE DR. INT.X-RD

Unknown

Over: I-15, (SR-15)

At the Dixie Drive Intchg, Washington, UT

Built 2012 ADT: 40,461

INTERCHG. X-ROAD.

Unknown

Over: SR-7, SOUTHERN PARKWAY

At the Airport Interchg., Washington, UT

Built 2010 ADT: 1,225

SR-7; So. Parkway

Unknown

Over: Long Valley Road

Washington Dam Road, Washington, UT

Built 2013

SR-7; So. Parkway

Unknown

Over: Warner Valley Road

Airport Access Road, Washington, UT

Built 2013

SR-7; So. Parkway

Unknown

Over: Washington Dam Road

Washington Dam Road, Washington, UT

Built 2013

I-15 (SR-15) NBL

Unknown

Over: SR-212, SPUI.INT.X-Road.

Washington Int., Washington, UT

Built 2003 ADT: 8,425

I-15 (SR-15) NBL

Unknown

Over: CO. RD. INT. X-RD

PINTURA INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) NBL

Unknown

Over: SR-17, INTCHG. X-ROAD

ANDERSON RANCH INTERCHG., Washington, UT

Built 1959 ADT: 2,870

I-15 (SR-15) NBL

Unknown

Over: CO. RD., INTCHG. X-ROAD

BLACK RIDGE INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) NBL

Unknown

Over: SR-228, INTCHG. X-ROAD

NORTH LEEDS INTERCHANGE, Washington, UT

Built 1962 ADT: 2,495

I-15 (SR-15) NBL

Unknown

Over: WASHINGTON MAIN STREET

1.1 MI.NO.WASHINGTON INT, Washington, UT

Built 1964

I-15 (SR-15) NBL

Unknown

Over: 700 S. Street

850 E 700 S in St. George, Washington, UT

Built 1972

I-15 (SR-15) NBL

Unknown

Over: 100 SOUTH STREET

1150 E.100 S.IN ST.GEORGE, Washington, UT

Built 1972

I-15 (SR-15) NBL

Unknown

Over: CO. RD. TO BLOOMINGTON

BLOOMINGTON INTERCHANGE, Washington, UT

Built 1972

SR-7,(SO. PARKWAY)

Unknown

Over: ASTRAGALUS DRIVE

0.3 Mi. east of I-15 Int., Washington, UT

Built 2010

SR-7 NB

Unknown

Over: RIVER ROAD

S. Parkway over River Rd, Washington, UT

Built 2010

SR-7,SOUTHERN PKW.

Unknown

Over: DESERT CANYON PARKWAY

Near St.George Airport, Washington, UT

Built 2010

I-15

Unknown

Over: Mall Drive

I-15 NB over Mall Dr., Washington, UT

Built 2017 ADT: 5,480

I-15 (SR-15) SBL

Unknown

Over: SR-212, SPUI INT.X-ROAD.

I-15 INT. IN WASHINGTON, Washington, UT

Built 2003 ADT: 8,425

I-15 (SR-15) SBL

Unknown

Over: CO. RD. INT. X-RD

PINTURA INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) SBL

Unknown

Over: SR-17, INTCHG. X-ROAD

ANDERSON RANCH INTERCHG., Washington, UT

Built 1959 ADT: 2,870

I-15 (SR-15) SBL

Unknown

Over: NEW HARMONY RD.,INT.X-RD

NEW HARMONY INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) SBL

Unknown

Over: PARK ROAD-INTER X-ROAD

KOLOB CANYON INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) SBL

Unknown

Over: CO. RD., INTCHG. X-ROAD

BLACK RIDGE INTERCHANGE, Washington, UT

Built 1959

I-15 (SR-15) SBL

Unknown

Over: SR-228, INTCHG. X-ROAD

NORTH LEEDS INTERCHANGE, Washington, UT

Built 1962 ADT: 2,495

I-15 (SR-15) SBL

Unknown

Over: WASHINGTON MAIN STREET

1.1 MI.NO.WASHINGTON INT, Washington, UT

Built 1964

I-15 (SR-15) SBL

Unknown

Over: 700 SOUTH STREET

850 E.700 SO.IN ST.GEORGE, Washington, UT

Built 1972

I-15 (SR-15) SBL

Unknown

Over: 100 SOUTH STREET

1150 E.100 S.in ST.GEORGE, Washington, UT

Built 1972

I-15 (SR-15) SBL

Unknown

Over: INT. RD. to BLOOMINGTON

BLOOMINGTON INTERCHANGE, Washington, UT

Built 1972

SR-7, S. Parkway

Unknown

Over: EAST FRONTAGE ROAD

At MP. 2.0 on SR-7, Washington, UT

Built 2010

SR-7,SOUTHERN PKW.

Unknown

Over: RIVER ROAD

SR-7, over River Road, Washington, UT

Built 2010

I-15

Unknown

Over: Mall Drive

Mall Dr Road, Washington, UT

Built 2017 ADT: 5,480

Cross Street

Unknown

Over: SR-7; Southern Parkway

East of Airport, Washington, UT

Built 2016 ADT: 500

SR-7

Unknown

Over: SR-9

SR-7 over SR-9, Washington, UT

Built 2022 ADT: 42,000

3000 South

Unknown

Over: SR 7

3000 S over SR-7, Washington, UT

Built 2022 ADT: 5,000

I-15 NB

Unknown

Over: Kolob Canyon Rd

I-15 NB over Kolob Cyn Rd, Washington, UT

Built 2020 ADT: 200

NB Bluff St SR-18

Unknown

Over: Red Hills Parkway

Bluff Street Interchange, Washington, UT

Built 2014 ADT: 10,920

I-15

Unknown

Over: Washington Main Street

1.1 MI N of Washington In, Washington, UT

Built 2023 ADT: 4,900

SB Bluff St SR-18

Unknown

Over: Snow Canyon Parkway

Bluff Street Interchange, Washington, UT

Built 2014 ADT: 9,370

I-15 SBL

Unknown

Over: Washington Main Street

1.1 MI.NO.WASHINGTON INT, Washington, UT

Built 2023 ADT: 4,900

TOWN ROAD

Fair

Over: UNKNOWN NAME CANAL

ENTRADA DR., E. OF VIRGIN, Washington, UT

Built 2006 ADT: 100

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

Related

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