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)

RS 1078 25.4-A.0

Good

Over: STREAM

3.0S 1.5W OF PLYMOUTH, Lyon, KS

Built 1939 Load: 13.6 t ADT: 110

RD B 929-504.9

Good

Over: STREAM

4.0W OF AMERICUS, Lyon, KS

Built 1925 Load: 13.6 t ADT: 10

RD. 80 929.5-538

Good

Over: STREAM

7.5W 1.0N OF OLPE, Lyon, KS

Built 1939 Load: 13.6 t ADT: 10

RD 200 (E.4-20.0)

Good

Over: STREAM

4.0S OF AMERICUS, Lyon, KS

Built 1933 Load: 13.6 t ADT: 50

LOCAL RD (L.2-290)

Good

Over: STREAM

5.0S 0.5E OF ALLEN, Lyon, KS

Built 1931 Load: 13.6 t ADT: 92

RD. H 939-526.6

Good

Over: STREAM

6.5N 3.0W OF OLPE, Lyon, KS

Built 1960 Load: 13.9 t ADT: 85

RS 412 F.5-17.8

Good

Over: TROUBLESOME CREEK

0.5E 1.8S OF AMERICUS, Lyon, KS

Built 1962 Load: 14.3 t ADT: 2,599

RD J 941-514.8

Good

Over: NEOSHO RIVER

0.1N of EMPORIA, Lyon, KS

Built 2005 Load: 14.9 t ADT: 765

RS 1118 X.2-105

Good

Over: STREAM

2.0W OF HARTFORD, Lyon, KS

Built 1968 Load: 15.3 t ADT: 50

RD 50 929.2-544.0

Good

Over: FAWN CREEK

8.0W 2.0S OF OLPE, Lyon, KS

Built 1958 Load: 15.6 t ADT: 80

RD. 130 939.7-528

Good

Over: DRY CREEK

6.0N 2.5W OF OLPE, Lyon, KS

Built 1961 Load: 16.0 t ADT: 90

RD. N 949.0-538.9

Good

Over: EAGLE CREEK

1.7E OF OLPE, Lyon, KS

Built 1975 Load: 16.7 t ADT: 50

RS 418 T-150.0

Good

Over: COTTONWOOD RIVER

6.0E 2.0S OF EMPORIA, Lyon, KS

Built 1972 Load: 17.1 t ADT: 152

RD 60 955.7-542.0

Good

Over: HOOSIER CREEK

1.0S 5.0E OF OLPE, Lyon, KS

Built 1955 Load: 17.7 t ADT: 66

RS 519 E.0-4.2

Good

Over: BLUFF CREEK

2.5N 1.5W OF BUSHONG, Lyon, KS

Built 1960 Load: 17.9 t ADT: 98

I-335 HWY (KTA) NB

Good

Over: ABAN. RR, BIKE TRAIL

4.90 MI NE N JCT K-99, Lyon, KS

Built 1956 Load: 18.1 t ADT: 5,450

RD. U 959-512.5

Good

Over: STREAM

0.5S 2.0E OF LANG, Lyon, KS

Built 1980 Load: 18.2 t ADT: 206

RD. D 931.0-482.7

Good

Over: BLUFF CREEK

2.0N 2.0W OF BUSHONG, Lyon, KS

Built 1904 Load: 18.5 t ADT: 50

RD 10 (F.4-39.0)

Good

Over: VERDIGRIS RIVER

6.0S 5.0W OF OLPE, Lyon, KS

Built 1977 Load: 18.5 t ADT: 50

LCL RD Y.0-80

Good

Over: STREAM

1.0W 2.5S OF HARTFORD, Lyon, KS

Built 1963 Load: 18.9 t ADT: 270

RS 1078 26.0-A.5

Good

Over: JACOB CREEK

3.5S 1.0W OF PLYMOUTH, Lyon, KS

Built 1974 Load: 19.0 t ADT: 84

LOCAL RD170.0-23.0

Good

Over: NEOSHO RIVER

4.0E OF EMPORIA, Lyon, KS

Built 2001 Load: 19.0 t ADT: 100

RD 310 (N.5-310)

Good

Over: DUCK CREEK

2.0S 1.0W OF ADMIRE, Lyon, KS

Built 1988 Load: 19.1 t ADT: 40

RD Y 967-504.3

Good

Over: MUD CREEK

0.5W 0.3S OF READING, Lyon, KS

Built 1986 Load: 19.1 t ADT: 30

I335 (KTA)EL-WL

Good

Over: STILLMAN CREEK

5.25 MI NE I-35, Lyon, KS

Built 1955 Load: 19.1 t ADT: 5,450

US50 HWY

Good

Over: COTTONWOOD RIV DRAIN

0.44 MI WEST OF I-35 JCT, Lyon, KS

Built 1947 Load: 20.0 t ADT: 12,900

RD 200 957.9-514

Good

Over: BADGER CREEK

7.0E 2.5N OF EMPORIA, Lyon, KS

Built 1980 Load: 20.1 t ADT: 50

RD 270 (L.7-270)

Good

Over: DOW CREEK

3.0N 5.5E OF AMERICUS, Lyon, KS

Built 1987 Load: 20.9 t ADT: 30

RD 260 929.5-502.0

Good

Over: STREAM

2.0N 2.5W OF AMERICUS, Lyon, KS

Built 1927 Load: 21.0 t ADT: 80

RD T5 957.5-538.8

Good

Over: SOUTH EAGLE CREEK

5.0W 4.0S OF HARTFORD, Lyon, KS

Built 1975 Load: 21.6 t ADT: 50

RS 1121 30.0-X.7

Good

Over: STREAM

7.0S 1.0W OF HARTFORD, Lyon, KS

Built 1977 Load: 21.7 t ADT: 125

RD 245 941.1-504.4

Good

Over: STREAM

0.5N 3.0E OF AMERICUS, Lyon, KS

Built 1996 Load: 21.8 t ADT: 10

US56 HWY

Good

Over: SALT CREEK DRAINAGE

.33 MI WEST OF OSAGE CL, Lyon, KS

Built 1931 Load: 21.8 t ADT: 580

LOCAL RD. E.8-180

Good

Over: MOON CREEK

3.0 W OF EMPORIA, Lyon, KS

Built 1980 Load: 22.1 t ADT: 80

RD B 927.0-498.2

Good

Over: WRIGHTS CREEK

3.8N 4.0W OF AMERICUS, Lyon, KS

Built 1979 Load: 22.2 t ADT: 80

RD L2 945.2-540.2

Good

Over: EAGLE CREEK

0.5S OF OLPE, Lyon, KS

Built 1977 Load: 22.3 t ADT: 50

RS 412 31.8-F.0

Good

Over: EAGLE CREEK

5.0W 1.0N OF OLPE, Lyon, KS

Built 1941 Load: 22.7 t ADT: 78

RS 413 D.8-16.0

Good

Over: TROUBLESOME CREEK

1.2W OF AMERICUS, Lyon, KS

Built 1956 Load: 22.7 t ADT: 75

RD 240 943.6-506.0

Good

Over: STILLMAN CREEK

4.5E OF AMERICUS, Lyon, KS

Built 1926 Load: 22.7 t ADT: 58

CTY RD L 945-476.8

Good

Over: STREAM

4.0N OF ALLEN, Lyon, KS

Built 1977 Load: 22.7 t ADT: 25

RS 416 T.7-8.7

Good

Over: STREAM

1.5S OF MILLER, Lyon, KS

Built 1940 Load: 22.7 t ADT: 152

RD Y 967.0-516.6

Good

Over: STREAM

5.5S 0.5W OF READING, Lyon, KS

Built 1947 Load: 22.7 t ADT: 55

RS 1120 E-25

Good

Over: STREAM

4.5S 6.0W OF OLPE, Lyon, KS

Built 1929 Load: 22.7 t ADT: 49

RS 1121 N.4-30.0

Good

Over: STREAM

4.0S 1.9E OF OLPE, Lyon, KS

Built 1930 Load: 22.7 t ADT: 64

RS 1507 I.5-27.0

Good

Over: STREAM

6.0N 1.5W OF OLPE, Lyon, KS

Built 1930 Load: 22.7 t ADT: 197

RD R05 965.7-533.0

Good

Over: STREAM

1.0W OF HARTFORD, Lyon, KS

Built 1950 Load: 22.7 t ADT: 20

RD. B2 927.2-518.9

Good

Over: BEAVER CREEK

3.8W 7.0S OF AMERICUS, Lyon, KS

Built 1968 Load: 22.7 t ADT: 10

RD 270 929.7-500.0

Good

Over: STREAM

2.5N 2.0W OF AMERICUS, Lyon, KS

Built 1941 Load: 22.7 t ADT: 50

RD 190 560.9-576

Good

Over: STREAM

2.0W 5.0S OF AMERICUS, Lyon, KS

Built 1959 Load: 22.7 t ADT: 50

RD. 150 (C.8-25.0)

Good

Over: STREAM

7.2W 8.0N OF OLPE, Lyon, KS

Built 1971 Load: 22.7 t ADT: 50

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