Lyon County, NV

54 public highway bridges

Lyon County Bridge Snapshot

Lyon County, Nevada contains 54 public highway bridges in the FHWA National Bridge Inventory. Roughly 53.7% are rated “Good,” 27.8% “Fair,” 7.4% “Poor,” and 7.4% 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 NV 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.

54
Total Bridges
53.7%
Good
7.4%
Poor
7.4%
Structurally Deficient

Condition Distribution

Good
53.7% (29)
Fair
27.8% (15)
Poor
7.4% (4)
SD
7.4% (4)

All Bridges (54)

SPRR

Unknown

Over: US 95A

FERNLEY, Lyon, NV

Built 1935 ADT: 9,800

I 80E

Unknown

Over: SR427 MAIN ST

WADSWORTH - FERNLEY, Lyon, NV

Built 1963 ADT: 5,280

I 80W

Unknown

Over: SR427 MAIN ST

WADSWORTH - FERNLEY, Lyon, NV

Built 1963 ADT: 5,280

I 80E

Unknown

Over: US 95A

FERNLEY, Lyon, NV

Built 1963 ADT: 8,185

I 80W

Unknown

Over: US 95A

FERNLEY, Lyon, NV

Built 1963 ADT: 8,185

NEVADA PACIFIC PKW

Unknown

Over: I 80

EAST OF FERNLEY, Lyon, NV

Built 2009 ADT: 6,800

GUSTAFSON ROAD

Fair

Over: TRUCKEE CARSON CANAL

FERNLEY HIGHLANDS, Lyon, NV

Built 1996 Load: 18.0 t ADT: 61

NORDYKE RD

Fair

Over: WEST FORK WALKER RVR

SOUTH OF YERINGTON, Lyon, NV

Built 1978 Load: 18.2 t ADT: 73

SR 338/SWEETWATER

Fair

Over: DALZELL CANYON

SOUTH OF WELLINGTON, Lyon, NV

Built 1947 Load: 19.6 t ADT: 400

SR829 WELLINGTON

Fair

Over: SARONI CANAL

WELLINGTON, Lyon, NV

Built 1946 Load: 28.7 t ADT: 510

SR 827

Fair

Over: WALKER RVR

MASON, Lyon, NV

Built 1969 Load: 28.7 t ADT: 1,200

SR 208/TOPAZ RD

Fair

Over: WEST WALKER RIVER

SOUTH OF YERINGTON, Lyon, NV

Built 1931 Load: 32.7 t ADT: 340

FSR 42050

Fair

Over: DESERT CREEK

NO DATA ENTERED, Lyon, NV

Built 2001 Load: 34.0 t ADT: 50

US 95A

Fair

Over: WALKER RVR

YERINGTON, Lyon, NV

Built 1955 Load: 35.2 t ADT: 5,900

SR 208/TOPAZ RD

Fair

Over: WEST WALKER RIVER

WELLINGTON, Lyon, NV

Built 1934 Load: 39.7 t ADT: 2,100

HUDSON WY

Fair

Over: WEST WALKER RVR

EAST OF SMITH, Lyon, NV

Built 1985 Load: 42.4 t ADT: 49

SR208 TOPAZ RD

Fair

Over: EAST WALKER RVR

SOUTH OF YERINGTON, Lyon, NV

Built 1930 Load: 43.4 t ADT: 390

LUX LN

Fair

Over: WALKER RVR

NORTH OF YERINGTON, Lyon, NV

Built 1900 Load: 44.4 t ADT: 61

SR 822 DAYTON VLY

Fair

Over: CARSON RVR

DAYTON, Lyon, NV

Built 1956 Load: 46.3 t ADT: 11,200

SR 208 TOPAZ RD

Fair

Over: W WALKER RVR WILSON C

EAST OF SMITH, Lyon, NV

Built 1959 Load: 47.0 t ADT: 1,500

US 95A

Fair

Over: CARSON RVR

NEAR WEEKS CROSSING, Lyon, NV

Built 1987 Load: 56.1 t ADT: 2,900

SR 208/TOPAZ RD

Good

Over: W. WALKER RIVER OVERFLOW

SOUTH OF YERINGTON, Lyon, NV

Built 1931 Load: 19.6 t ADT: 340

SR 338/SWEETWATER

Good

Over: DALZELL CANYON

SOUTH OF WELLINGTON, Lyon, NV

Built 1947 Load: 19.6 t ADT: 400

SR 338/SWEETWATER

Good

Over: DALZELL CANYON

SOUTH OF WELLINGTON, Lyon, NV

Built 1947 Load: 19.6 t ADT: 400

US 50

Good

Over: DITCH

5 MI EAST OF DAYTON, Lyon, NV

Built 2012 Load: 19.6 t ADT: 7,800

SR338 SWEETWATER

Good

Over: SARONI CANAL

SE of WELLINGTON, Lyon, NV

Built 1946 Load: 23.1 t ADT: 480

I 80E

Good

Over: SPRR

NEAR FERNLEY, Lyon, NV

Built 1963 Load: 24.9 t ADT: 10,850

I 80W

Good

Over: SPRR

NEAR FERNLEY, Lyon, NV

Built 1963 Load: 24.9 t ADT: 10,850

SR 208/TOPAZ RD

Good

Over: SIMPSON CANAL

SOUTH OF WELLINGTON, Lyon, NV

Built 1955 Load: 25.1 t ADT: 3,400

Minister Road

Good

Over: E Fork Walker River

Yerington-Mason, Lyon, NV

Built 2020 Load: 27.8 t ADT: 25

SNYDER LN

Good

Over: WALKER RVR

SOUTH OF MASON, Lyon, NV

Built 1984 Load: 35.9 t ADT: 121

NORDYKE ROAD

Good

Over: EAST FORK WALKER RIVER

S. OF YERINGTON, Lyon, NV

Built 2016 Load: 37.2 t ADT: 100

SR 824 DAY LN

Good

Over: WEST WALKER RVR

NORTH OF SMITH, Lyon, NV

Built 1960 Load: 38.2 t ADT: 820

RICCI RD

Good

Over: COMO WASH

DAYTON, Lyon, NV

Built 1991 Load: 41.1 t ADT: 116

US 95A

Good

Over: CARSON RVR OVERFLOW

NORTH OF YERINGTON, Lyon, NV

Built 1964 Load: 41.8 t ADT: 2,900

US 50

Good

Over: DITCH

3 MI EAST OF DAYTON, Lyon, NV

Built 2012 Load: 45.0 t ADT: 18,600

I 80E

Good

Over: VINE ST GRADE SEP MP47

NEAR FERNLEY, Lyon, NV

Built 1963 Load: 45.4 t ADT: 10,850

I 80W

Good

Over: VINE ST GRADE SEP MP47

NEAR FERNLEY, Lyon, NV

Built 1963 Load: 45.4 t ADT: 10,850

US 95A

Good

Over: TRUCKEE CANAL

FERNLEY, Lyon, NV

Built 2006 Load: 49.6 t ADT: 7,450

SR 340 BRIDGE ST

Good

Over: WALKER RVR

YERINGTON, Lyon, NV

Built 1974 Load: 55.8 t ADT: 3,100

MILLER LN

Good

Over: WALKER RVR

NORTH OF YERINGTON, Lyon, NV

Built 1976 Load: 56.4 t ADT: 570

US 95A

Good

Over: UPRR

FERNLEY, Lyon, NV

Built 2006 Load: 59.0 t ADT: 29,500

CLEARWATER PKWY

Good

Over: TRUCKEE CANAL

South of Farm District Rd, Lyon, NV

Built 2004 Load: 66.9 t ADT: 220

US 50

Good

Over: ANIMAL UNDERCROSSING

4mi East of Fort Churchil, Lyon, NV

Built 2013 Load: 72.6 t ADT: 7,800

SR439 USA PARKWAY

Good

Over: WILDLIFE UNDERCROSSING

1.76 Miles N of US50, Lyon, NV

Built 2017 Load: 99.9 t ADT: 4,850

SR439 USA PARKWAY

Good

Over: WASH

4.61 Miles from US50, Lyon, NV

Built 2017 Load: 99.9 t ADT: 4,850

SR 439 USA PARKWAY

Good

Over: WASH

0.062 Miles N of US50, Lyon, NV

Built 2017 Load: 99.9 t ADT: 4,850

SR439 USA PARKWAY

Good

Over: WASH

0.227 Miles N of US50, Lyon, NV

Built 2017 Load: 99.9 t ADT: 4,850

SR439 USA PARKWAY

Good

Over: WASH

0.254 Miles N of US50, Lyon, NV

Built 2017 Load: 99.9 t ADT: 4,850

US50

Good

Over: DRY WASH

SILVER SPRINGS AIRPORT, Lyon, NV

Built 2019 Load: 99.9 t ADT: 5,500

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