Lyon County, KS

493 public highway bridges

Lyon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lyon County, Kansas contains 493 public highway bridges. Roughly 59.6% are rated “Good,” 31.2% “Fair,” and 1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

493
Total Bridges
59.6%
Good
31.2%
Fair
1%
Poor Condition

Condition Distribution

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

All Bridges (493)

RD 310 929.4-492.0

Fair

Over: STREAM

2.5S 2.5W OF BUSHONG, Lyon, KS

Built 1940 Load: 25.8 t ADT: 10

I-35 HWY SB (KTA)

Fair

Over: COTTONWOOD R OVFL,RD

9.04 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 26.2 t ADT: 8,600

RS 416 U.O-11.5

Fair

Over: 142 MILE CREEK

1.5W 3.5N OF READING, Lyon, KS

Built 1938 Load: 26.3 t ADT: 51

RD 170 931.5-520

Fair

Over: LINDY CREEK

0.5S 2.0E OF PLYMOUTH, Lyon, KS

Built 1921 Load: 27.9 t ADT: 50

RD C (16.8-C.0)

Fair

Over: TRIB. TO NEOSHO RIVER

3.0W 0.8S OF AMERICUS, Lyon, KS

Built 1996 Load: 28.0 t ADT: 30

CNTY RD 400-P.3

Fair

Over: ELM CREEK

6.5N OF ADMIRE, Lyon, KS

Built 1946 Load: 28.2 t ADT: 10

RD. 330 (Q.0-7.0)

Fair

Over: STREAM

2.0E OF ADMIRE, Lyon, KS

Built 2004 Load: 28.2 t ADT: 10

CTY RD L 945-478.4

Fair

Over: STREAM

3.0N OF ALLEN, Lyon, KS

Built 1959 Load: 28.6 t ADT: 25

RD. K 943.0-532.3

Fair

Over: COAL CREEK

1.2W 3.2N OF OLPE, Lyon, KS

Built 1927 Load: 28.7 t ADT: 30

RD 160 967.1-522

Fair

Over: PLUM CREEK

1.0E 1.0N NEOSHO RAPIDS, Lyon, KS

Built 2009 Load: 28.8 t ADT: 50

RD 170 (D.1-23.0)

Fair

Over: STREAM

7.0S 1.9W OF AMERICUS, Lyon, KS

Built 2003 Load: 29.1 t ADT: 50

I-335 HWY (KTA) SB

Fair

Over: ELM CREEK

1.19 MI NE US-56, Lyon, KS

Built 1956 Load: 29.1 t ADT: 5,650

RD. 120 931.1-530

Fair

Over: Phenis Branch

3.5S&6.5W of Emporia, Lyon, KS

Built 2003 Load: 29.7 t ADT: 20

CNTY RD. 395

Fair

Over: STREAM

6.0N & 3.0E OF ADMIRE, Lyon, KS

Built 1998 Load: 30.0 t ADT: 25

RD Y 967.0-546.1

Fair

Over: FOUR MILE CREEK

6.0S 1.0W OF HARTFORD, Lyon, KS

Built 1979 Load: 30.0 t ADT: 30

RS 1120 20.0-A.5

Fair

Over: STREAM

5.0S 10.0W OF OLPE, Lyon, KS

Built 1992 Load: 30.5 t ADT: 9

RD A 925.0-498.4

Fair

Over: TRIB. TO WRIGHT CREEK

3.6N 5.0W OF AMERICUS, Lyon, KS

Built 1994 Load: 30.5 t ADT: 10

RD. 50 957.3-544.0

Fair

Over: STREAM

2.0S 5.8E OF OLPE, Lyon, KS

Built 2004 Load: 30.7 t ADT: 20

RD E 933.0-528.3

Fair

Over: STREAM

5.0S 2.8E OF PLYMOUTH, Lyon, KS

Built 2015 Load: 30.8 t ADT: 10

RD H2 939.2-496.2

Fair

Over: TRIBUTARY TO ALLEN CREEK

4.9N&2.25E OF AMERICUS, Lyon, KS

Built 2000 Load: 30.8 t ADT: 20

RD W 963-530.1

Fair

Over: STREAM

1.5N 2.5W OF HARTFORD, Lyon, KS

Built 2003 Load: 30.8 t ADT: 20

RD E 933.5-520

Fair

Over: MOON CREEK

7.0S 0.5W OF AMERICUS, Lyon, KS

Built 2003 Load: 30.9 t ADT: 30

I-35 HWY SB

Fair

Over: BNSF RAILWAY

1.65 MI SE K99 SB, Lyon, KS

Built 1966 Load: 31.8 t ADT: 7,650

I-35 HWY NB

Fair

Over: BNSF RAILWAY

1.64 MI EAST OF K-99, Lyon, KS

Built 1966 Load: 31.8 t ADT: 7,650

RD. M 947-530.9

Fair

Over: COAL CREEK

4.0N 1.0E OF OLPE, Lyon, KS

Built 1992 Load: 32.5 t ADT: 40

RS 412 F.5-18.2

Fair

Over: PESTER CREEK

0.5E 1.0S OF AMERICUS, Lyon, KS

Built 1965 Load: 32.7 t ADT: 2,599

RD U (R.0-18.3)

Fair

Over: STREAM

1.0N 2.0E OF LANG, Lyon, KS

Built 1957 Load: 32.7 t ADT: 206

RD 200 (P.1-200.0)

Fair

Over: PLUMB CREEK

1.0N 1.0E OF EMPORIA, Lyon, KS

Built 1940 Load: 32.7 t ADT: 100

COUNTY RD. 390,P.0

Fair

Over: STREAM

5.5N OF ADMIRE, Lyon, KS

Built 1985 Load: 33.1 t ADT: 5

RD 40 965.5-546.0

Fair

Over: STREAM

1.5W 6.5S OF HARTFORD, Lyon, KS

Built 1984 Load: 34.1 t ADT: 20

RS 412 33.0-J.6

Fair

Over: EAGLE CREEK

0.5W OF OLPE, Lyon, KS

Built 1938 Load: 34.4 t ADT: 466

I-35 HWY NB

Fair

Over: K-130 HWY

JCT I35 & K-130 HWY, Lyon, KS

Built 1975 Load: 34.4 t ADT: 8,050

RD 320 947.6-490

Fair

Over: DUCK CREEK

2.0S 1.6E OF ALLEN, Lyon, KS

Built 1994 Load: 34.8 t ADT: 45

I-35 HWY NB

Fair

Over: NEOSHO RIVER

3.69 MI EAST OF K-99, Lyon, KS

Built 1976 Load: 36.3 t ADT: 8,350

I-35 HWY SB

Fair

Over: BADGER CREEK

6.84 MI EAST OF K-99, Lyon, KS

Built 1976 Load: 37.2 t ADT: 8,150

I-35 HWY NB

Fair

Over: BADGER CREEK

6.85 MI EAST OF K-99, Lyon, KS

Built 1976 Load: 37.2 t ADT: 8,150

RD 150 963.5-524.0

Fair

Over: DRY CREEK

N. EDGE OF NEOSHO RAPIDS, Lyon, KS

Built 1988 Load: 38.0 t ADT: 20

K99 HWY

Fair

Over: COTTONWOOD RIVER

1.49 MI S US50, Lyon, KS

Built 1987 Load: 39.9 t ADT: 3,850

US-56 HWY

Fair

Over: ELM CREEK

1.55 MI E KTA, Lyon, KS

Built 1991 Load: 40.5 t ADT: 580

K99 HWY

Fair

Over: DOW CREEK

0.38 MI E/KTA, Lyon, KS

Built 1985 Load: 41.7 t ADT: 595

I-35 HWY SB (KTA)

Fair

Over: COTTONWOOD RIVER

8.50 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 42.9 t ADT: 8,600

RD 225 933.5-508.0

Fair

Over: STREAM

1.0S 0.5W OF AMERICUS, Lyon, KS

Built 1987 Load: 44.1 t ADT: 20

RS 412 F.5-16.6

Fair

Over: STREAM

S.E. COR. OF AMERICUS, Lyon, KS

Built 1965 Load: 46.9 t ADT: 2,599

RD 270 (N.7-270)

Fair

Over: STREAM

3.0N 8.0E OF AMERICUS, Lyon, KS

Built 1988 Load: 61.1 t ADT: 30

RS 1507 I.0-26.2

Good

Over: DRY CREEK

3.0S 1.5W OF EMPORIA, Lyon, KS

Built 1968 Load: 8.2 t ADT: 197

RS 412 30.8-F.0

Good

Over: STREAM

5.0W 2.0N OF OLPE, Lyon, KS

Built 1950 Load: 8.3 t ADT: 193

CTY RD 360

Good

Over: ELM CREEK

2.5N 4.0E OF ADMIRE, Lyon, KS

Built 1950 Load: 8.3 t ADT: 20

RD 395_955.7-474.5

Good

Over: CHICKEN CREEK

6.0N 2.0E OF ADMIRE, Lyon, KS

Built 1983 Load: 9.1 t ADT: 25

RD 60 953.1-542.0

Good

Over: HARPER CREEK

1.0S 4.0E OF OLPE, Lyon, KS

Built 1950 Load: 10.7 t ADT: 66

COUNTY RD. L

Good

Over: 142 MILE CREEK

5.5N OF ALLEN, Lyon, KS

Built 1953 Load: 12.6 t ADT: 25

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.