Lyon County, KS

493 public highway bridges

Lyon County Bridge Snapshot

Lyon County, Kansas contains 493 public highway bridges in the FHWA National Bridge Inventory. Roughly 59.6% are rated “Good,” 31.2% “Fair,” 1% “Poor,” and 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 KS 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.

493
Total Bridges
59.6%
Good
1%
Poor
1%
Structurally Deficient

Condition Distribution

Good
59.6% (294)
Fair
31.2% (154)
Poor
1% (5)
SD
1% (5)

All Bridges (493)

RD D 931.0-514.9

Good

Over: STREAM

2.0W 5.0S OF AMERICUS, Lyon, KS

Built 1942 Load: 22.7 t ADT: 80

RD 250 931.5-504.0

Good

Over: TROUBLESOME CREEK

1.0N 1.5W OF AMERICUS, Lyon, KS

Built 1927 Load: 22.7 t ADT: 20

RD. 360 (D.6-4.0)

Good

Over: STREAM

2.5N 2.0W OF BUSHONG, Lyon, KS

Built 1960 Load: 22.7 t ADT: 60

RD 270 (E.4-13.0)

Good

Over: TROUBLESOME CREEK

3.0N OF AMERICUS, Lyon, KS

Built 1924 Load: 22.7 t ADT: 20

RD F 935.0-506.7

Good

Over: PESTER CREEK

S. EDGE OF AMERICUS, Lyon, KS

Built 1926 Load: 22.7 t ADT: 10

RD. 80 (F.2-32.0

Good

Over: STREAM

4.9W 1.0N OF OLPE, Lyon, KS

Built 1968 Load: 22.7 t ADT: 10

RD 320 937.1-508.0

Good

Over: STREAM

1.0S 1.0E OF AMERICUS, Lyon, KS

Built 1925 Load: 22.7 t ADT: 10

RD 310 (K.7-310)

Good

Over: DOW CREEK

3.0S OF ALLEN, Lyon, KS

Built 1930 Load: 22.7 t ADT: 10

RD 20 943.5-550.0

Good

Over: STREAM

5.0S 1.0W OF OLPE, Lyon, KS

Built 1971 Load: 22.7 t ADT: 50

RD 135 (L.4-135)

Good

Over: STREAM

0.5S 0.5E OF EMPORIA, Lyon, KS

Built 1937 Load: 22.7 t ADT: 30

RD 135 945.9-526.5

Good

Over: STREAM

2.5S 1.5E OF EMPORIA, Lyon, KS

Built 1936 Load: 22.7 t ADT: 30

RD 160 949.5-522.0

Good

Over: STREAM

1.0N 7.5W NEOSHO RAPIDS, Lyon, KS

Built 1939 Load: 22.7 t ADT: 50

RD 120 (R.6-120)

Good

Over: STREAM

6.7W 1.5N OF HARTFORD, Lyon, KS

Built 1931 Load: 22.7 t ADT: 20

RD 50 953.8-544.0

Good

Over: HOOSIER CREEK

2.0S 4.3E OF OLPE, Lyon, KS

Built 1937 Load: 22.7 t ADT: 30

RD. 190 (S.5-190)

Good

Over: COON CREEK

4.6W 4.0N NEOSHO RAPIDS, Lyon, KS

Built 1933 Load: 22.7 t ADT: 50

RD. 40 957.8-546.0

Good

Over: STREAM

3.0S 6.2E OF OLPE, Lyon, KS

Built 1935 Load: 22.7 t ADT: 20

RD 50 959.3-544.0

Good

Over: STREAM

2.0S 6.8E OF OLPE, Lyon, KS

Built 1930 Load: 22.7 t ADT: 10

RD 240 961.1-506.0

Good

Over: STREAM

3.5W 1.0S OF READING, Lyon, KS

Built 1924 Load: 22.7 t ADT: 20

RD 240 965.9-506

Good

Over: STREAM

0.5W 1.0S OF READING, Lyon, KS

Built 1940 Load: 22.7 t ADT: 20

RD. 360 967.2-482

Good

Over: STREAM

2.5N 7.0E OF ADMIRE, Lyon, KS

Built 1940 Load: 22.7 t ADT: 30

RD 70 (Z.0-70.0)

Good

Over: STREAM

3.5S OF HARTFORD, Lyon, KS

Built 1968 Load: 22.7 t ADT: 10

RD 190 (963.9-516)

Good

Over: DRY CREEK

4.0N OF NEOSHO RAPIDS, Lyon, KS

Built 2002 Load: 23.0 t ADT: 20

Rd K5

Good

Over: Stream

0.5 W of Olpe, Lyon, KS

Built 2013 Load: 23.3 t ADT: 20

US56 HWY

Good

Over: ALLEN CREEK

7.03 MI E MORRIS COLN, Lyon, KS

Built 1942 Load: 23.6 t ADT: 970

RD 215 (J.5-215)

Good

Over: TROUBLESOME CREEK

2.5S 3.5E OF AMERICUS, Lyon, KS

Built 1977 Load: 24.1 t ADT: 80

COUNTY ROAD 130

Good

Over: UNNAMED NATURAL DRAINAGE

2.5 MI N OF HQ, Lyon, KS

Built 1927 Load: 24.5 t ADT: 25

OLD HIGHWAY 130

Good

Over: UNNAMED NATURAL DRAINAGE

NORTH OF BURGESS MARSH, Lyon, KS

Built 1927 Load: 24.5 t ADT: 5

RS 151 Z.0-65

Good

Over: FOUR MILE CREEK

3.5S OF HARTFORD, Lyon, KS

Built 1977 Load: 24.7 t ADT: 360

RD G 937.0-486.8

Good

Over: STREAM

0.5E OF BUSHONG, Lyon, KS

Built 2019 Load: 25.3 t ADT: 20

RD 40 929.7-546.0

Good

Over: FAWN CREEK

7.0W 3.0S OF OLPE, Lyon, KS

Built 2009 Load: 25.4 t ADT: 30

RD 215 939.2-510.5

Good

Over: TROUBLESOME CREEK

2.5S 2.0E OF AMERICUS, Lyon, KS

Built 1988 Load: 25.4 t ADT: 20

MNR COL T.6-278

Good

Over: DUCK CREEK

5.0W 2.7N OF READING, Lyon, KS

Built 2012 Load: 25.4 t ADT: 80

RD 110 931.9-532.0

Good

Over: PHENIS CREEK

4MI. N & 6.5MI. W OF OLPE, Lyon, KS

Built 2000 Load: 26.2 t ADT: 20

RD. 140 941.8-526

Good

Over: STREAM

3.0S OF EMPORIA, Lyon, KS

Built 2006 Load: 26.2 t ADT: 20

I-35 HWY NB (KTA)

Good

Over: COTTONWOOD R OVFL,RD

9.05 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 26.2 t ADT: 8,600

RD. T (T.0-385)

Good

Over: CHICKEN CREEK

5.0N 2.0E OF ADMIRE, Lyon, KS

Built 2017 Load: 26.3 t ADT: 10

RD G 937.0-492.3

Good

Over: STREAM

3.0S 0.5E OF BUSHONG, Lyon, KS

Built 2010 Load: 26.6 t ADT: 20

RD. G 937.0-546.6

Good

Over: ROCK CREEK

3.5S 4.5W OF OLPE, Lyon, KS

Built 2012 Load: 26.6 t ADT: 10

RD. U 959.0-538.7

Good

Over: SOUTH EAGLE CREEK

3.2S 4.5W OF HARTFORD, Lyon, KS

Built 2005 Load: 26.7 t ADT: 20

RD X 965.0-546.7

Good

Over: FOURMILE CREEK

6.7S 1.5W of Hartford, Lyon, KS

Built 2015 Load: 26.7 t ADT: 20

RD D (D.0-7.6)

Good

Over: STREAM

1.0S 2.0W OF BUSHONG, Lyon, KS

Built 1940 Load: 26.8 t ADT: 10

RD X 965.0-532.2

Good

Over: STREAM

1.5W .5N OF HARTFORD, Lyon, KS

Built 2015 Load: 26.8 t ADT: 20

RD 180 925.8-518.0

Good

Over: STREAM

4.2W 6.0S OF AMERICUS, Lyon, KS

Built 2003 Load: 26.9 t ADT: 10

RD. H 939-538.6

Good

Over: Eagle Creek

3.0W OF OLPE, Lyon, KS

Built 2001 Load: 26.9 t ADT: 20

RD 300 (H.7-300)

Good

Over: Unnamed Creek

2.0W 4.0S of Allen, Lyon, KS

Built 2012 Load: 26.9 t ADT: 10

County Road L

Good

Over: Coal Creek

3.9N of Olpe, Lyon, KS

Built 2011 Load: 27.1 t ADT: 50

RD F 935.0-478.7

Good

Over: BLUFF CREEK

4.0N of Bushong, Lyon, KS

Built 2014 Load: 27.2 t ADT: 10

LOCAL ROAD 350

Good

Over: HILL CREEK

0.5N 0.75W OF ALLEN, Lyon, KS

Built 2011 Load: 27.2 t ADT: 40

RD X (X.0-190.1)

Good

Over: TRIB. TO DRY CREEK

6.0S 1.5W OF READING, Lyon, KS

Built 1999 Load: 27.4 t ADT: 10

RD 140 943.4-526.0

Good

Over: STREAM

3.0S OF EMPORIA, Lyon, KS

Built 2005 Load: 27.5 t ADT: 30

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