Summit County, UT

138 public highway bridges

Summit County Bridge Snapshot

Summit County, Utah contains 138 public highway bridges in the FHWA National Bridge Inventory. Roughly 13% are rated “Good,” 53.6% “Fair,” 4.3% “Poor,” and 4.3% 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.

138
Total Bridges
13%
Good
4.3%
Poor
4.3%
Structurally Deficient

Condition Distribution

Good
13% (18)
Fair
53.6% (74)
Poor
4.3% (6)
SD
4.3% (6)

All Bridges (138)

TOLL CYN.INT.X-RD

Unknown

Over: I-80 & SILVER CREEK

3.9 MI.E.SILVER CREEK INT, Summit, UT

Built 1967 ADT: 13,980

COUNTY ROAD

Unknown

Over: I-80 (SR-80) EBL and WBL

3.8 MI.NORTHEAST WANSHIP, Summit, UT

Built 1967 ADT: 12,804

COUNTY ROAD

Unknown

Over: I-80 (SR-80) EBL & WBL

6.6 MI.NORTHEAST WANSHIP, Summit, UT

Built 1967 ADT: 13,135

COUNTY ROAD

Unknown

Over: I-80 (SR-80) EBL & WBL

1.9 MILE EAST OF WANSHIP, Summit, UT

Built 1967 ADT: 13,135

US-40 (SR-40)

Unknown

Over: I-80 (SR-80)

SILVER CREEK JCT.INTCHG., Summit, UT

Built 2001 ADT: 35,285

SR-224, INT.X-RD.

Unknown

Over: I-80 (SR-80) EBL & W

KIMBALL'S JUNCTION IN, Summit, UT

Built 2000 ADT: 51,705

SUBDVN.ACCESS ROAD

Unknown

Over: SR-224,GUARDSMAN PASS

On Guardsman Pass Road, Summit, UT

Built 2008 ADT: 4,495

I-80 (SR-80)EB&amp

Unknown

Over: COUNTY ROAD INT. X-ROAD

5.5 MI WEST WYOMING LINE, Summit, UT

Built 1958

SR-280

Unknown

Over: I-80 (SR-80) EBL and WBL

COALVILLE INTERCHANGE, Summit, UT

Built 1967 ADT: 13,135

I-84 (SR-84)

Unknown

Over: SR-86, INT. X-ROAD

WEST HENEFER INTERCHANGE, Summit, UT

Built 1973 ADT: 475

Silver Summit Pkwy

Unknown

Over: US-40 (SR-40)

SILVER SUMMIT INTERCHANGE, Summit, UT

Built 1993 ADT: 28,140

CO.RD. INT. X-ROAD

Unknown

Over: I-80 (SR-80) EBL & W

CASTLE ROCK INTERCHANGE, Summit, UT

Built 1974 ADT: 14,730

I-84 (SR-84) EBL

Unknown

Over: I-80 (SR-80) EBL & W

ECHO INTERCHANGE, Summit, UT

Built 1970 ADT: 12,405

INT.X-RD.to I-80EB

Unknown

Over: I-80(SR-80) EBL & WB

1 Mile W. of Utah POE, Summit, UT

Built 1968 ADT: 14,685

US-40 (SR-40) EBL

Unknown

Over: SR-248, INTCHG. X-RD

EAST PARK CITY INTERCHG., Summit, UT

Built 1989 ADT: 16,765

I-80EB, (SR-80)

Unknown

Over: INT.X-RD@PARLEYS SUMMIT

At Parleys Summit Intchg, Summit, UT

Built 2011

I-80EB (SR-80)

Unknown

Over: SR-32

At the WANSHIP INTERCHG., Summit, UT

Built 2012 ADT: 2,083

I-80 (SR-80) EBL

Unknown

Over: ACCESS ROAD INT. X-ROAD

3.3 MI. E. of CASTLE ROCK, Summit, UT

Built 1962

I-80 (SR-80) EBL

Unknown

Over: COUNTY ROAD

HOYTSVILLE, Summit, UT

Built 1967

I-80 (SR-80) EBL

Unknown

Over: CO. RD. INTCHG. X-ROAD

JEREMY RANCH INTCHG., Summit, UT

Built 1971

I-80 (SR-80) EBL

Unknown

Over: CO.RD.AT MTN.MEADOW

.95 MI.E.OF KIMBALL JCT., Summit, UT

Built 1970

US-40 (SR-40) EBL

Unknown

Over: LOCAL COUNTY ROAD

.7 MI.SE.PARK CITY INTCHG, Summit, UT

Built 1989

I-80EB, (SR-80)

Unknown

Over: COUNTY ROAD

2 Mi. East Wanship Int., Summit, UT

Built 2006

I-80 EB, (SR-80)

Unknown

Over: COUNTY ROAD INTERCHANGE

Echo Jct. Interchange, Summit, UT

Built 2009

I-84EB near ECHO

Unknown

Over: ECHO FRONTAGE ROAD

West of town of Echo, Summit, UT

Built 2013

US-40 (SR-40)WBL

Unknown

Over: SR-248, INTCHG. X-RD

EAST PARK CITY INTERCHG., Summit, UT

Built 1989 ADT: 10,560

US-40, WB. RAMP

Unknown

Over: I-80 (SR-80) EBL

SILVER CREEK JCT. INTCHG., Summit, UT

Built 2001 ADT: 14,445

US-40, WB. RAMP

Unknown

Over: US-40 (SR-40) EBL

SILVER CREEK JCT. INTCHG., Summit, UT

Built 2001 ADT: 28,140

I-80WB, (SR-80)

Unknown

Over: INT.X-RD@PARLEYS SUMMIT

At Parleys Summit Intchg., Summit, UT

Built 2011

I-80WB (SR-80)

Unknown

Over: SR-32

At the Wanship Interchang, Summit, UT

Built 2012 ADT: 2,847

I-80 (SR-80) WBL

Unknown

Over: ACCESS ROAD INT. X-ROAD

3.3 MI.EAST CASTLE ROCK, Summit, UT

Built 1962

Ramp I-80E to I-84

Unknown

Over: I-80 & I-84 Ramp

ECHO INTCHG. RAMP, Summit, UT

Built 1970 ADT: 18,000

I-80 (SR-80) WBL

Unknown

Over: CREAMERY LANE, CO. RD.

HOYTSVILLE, Summit, UT

Built 1967

I-80 (SR-80) WBL

Unknown

Over: CO.RD. INTCHG. X-ROAD

JEREMY RANCH INTCHG., Summit, UT

Built 1971

I-80 (SR-80) WBL

Unknown

Over: CO.RD.AT MTN.MEADOW

.95 MI.E.of KIMBALL JCT., Summit, UT

Built 1970

US-40 (SR-40) WBL

Unknown

Over: LOCAL COUNTY ROAD

.7 MI.SE.PARK CITY INTCHG, Summit, UT

Built 1989

I-80, (SR-80)

Unknown

Over: COUNTY ROAD

0.6 Miles East of Wanship, Summit, UT

Built 2005

I-80 WBL, (SR-80)

Unknown

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

Echo Jct. Interchange, Summit, UT

Built 2009

I-84WB near ECHO

Unknown

Over: ECHO FRONTAGE ROAD

West of Echo Town, Summit, UT

Built 2013

SR-65

Unknown

Over: I-84

SR-65 over I-84, Summit, UT

Built 2021 ADT: 8,600

I-80 (SR-80)EB&amp

Fair

Over: ECHO CREEK

2.4 MI. E. of Castle Rock, Summit, UT

Built 1962 Load: 1.6 t ADT: 14,665

TOWN STREET

Fair

Over: WEBER RIVER

EAST SIDE OF OAKLEY, Summit, UT

Built 1986 Load: 6.5 t ADT: 777

ROAD BRIDGE

Fair

Over: BURNT FORK CREEK

NO DATA ENTERED, Summit, UT

Built 1990 Load: 9.7 t ADT: 50

100 NORTH STREET

Fair

Over: CHALK CREEK

140 E.100 N., COALVILLE, Summit, UT

Built 1949 Load: 10.7 t ADT: 2,090

COUNTY ROAD

Fair

Over: DRY FORK OF WEBER RIVER

EAST OF HOLIDAY PARK, Summit, UT

Built 1950 Load: 11.0 t ADT: 844

COUNTY ROAD

Fair

Over: WEBER RIVER

2 MILES E.OF HOLIDAY PARK, Summit, UT

Built 1950 Load: 11.7 t ADT: 850

ROAD 80037

Fair

Over: PROVO RIVER

NO DATA ENTERED, Summit, UT

Built 1950 Load: 12.0 t ADT: 100

SR-32

Fair

Over: SILVER CREEK

0.5 MI NE. OF WANSHIP, Summit, UT

Built 1961 Load: 18.8 t ADT: 1,848

COUNTY ROAD

Fair

Over: WEBER-PROVO DIV. CANAL

2 MILES SE. OF OAKLEY, Summit, UT

Built 1961 Load: 19.1 t ADT: 777

DEER VALLEY DRIVE

Fair

Over: DEER VALLEY LODGE ENT.

AT ENT.TO DEER VALLEY LDG, Summit, UT

Built 1996 Load: 19.4 t ADT: 2,350

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