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 290

Good

Over: WRIGHTS CREEK

3.5 S & 3.8 W OF BUSHONG, Lyon, KS

Built 2005 Load: 30.7 t ADT: 30

RD 280 (D.3-12.0)

Good

Over: STREAM

4.0N 1.7W OF AMERICUS, Lyon, KS

Built 1996 Load: 30.8 t ADT: 20

RD. 20 949.6-550.0

Good

Over: TATE BRANCH CREEK

5.0S 2.1E OF OLPE, Lyon, KS

Built 2009 Load: 30.8 t ADT: 20

LOCAL RD (P.0-308)

Good

Over: DUCK CREEK

2.0S 0.5W OF ADMIRE, Lyon, KS

Built 2005 Load: 30.9 t ADT: 20

RD. S 955-494.8

Good

Over: DUCK CREEK

4.0S 1.0E OF ADMIRE, Lyon, KS

Built 2006 Load: 30.9 t ADT: 40

RD 200 951.3-514

Good

Over: TRIB. TO PLUMB CREEK

3.0N 4.8E OF EMPORIA, Lyon, KS

Built 1996 Load: 31.0 t ADT: 100

I-335 HWY (KTA) SB

Good

Over: ALLEN CREEK

3.41 MI NE US-50, Lyon, KS

Built 1956 Load: 31.0 t ADT: 5,450

I-335 HWY (KTA) NB

Good

Over: ALLEN CREEK

3.40 MI NE US-50, Lyon, KS

Built 1956 Load: 31.0 t ADT: 5,450

RD. 10 941.7-552.0

Good

Over: TRIB. TO TROUBLESOME RIV

6.0S 1.7W OF OLPE, Lyon, KS

Built 2012 Load: 31.1 t ADT: 54

RD 150 951.8-524.

Good

Over: STREAM

4.0E 2.0S OF EMPORIA, Lyon, KS

Built 2015 Load: 31.1 t ADT: 50

RD 200 (X.4-200)

Good

Over: STREAM

5.0S 1.0W OF READING, Lyon, KS

Built 2017 Load: 31.1 t ADT: 10

LOCAL ROAD C-10

Good

Over: STREAM

3.5m S and 3m W Bushong, Lyon, KS

Built 2009 Load: 31.2 t ADT: 30

RD E (E.0-13.8)

Good

Over: TROUBLESOME CREEK

2.5N 1.0W OF AMERICUS, Lyon, KS

Built 2004 Load: 31.2 t ADT: 30

RD. K 943-526.2

Good

Over: STREAM

2.0S OF EMPORIA, Lyon, KS

Built 2007 Load: 31.2 t ADT: 50

RD 70 953.6-540.0

Good

Over: SOUTH EAGLE CREEK

4.1E OF OLPE, Lyon, KS

Built 2005 Load: 31.4 t ADT: 5

RD Z (Z.0-240.7)

Good

Over: MUD CREEK

S. E. EDGE OF READING, Lyon, KS

Built 1997 Load: 31.6 t ADT: 20

LOCAL RD (N.5-260)

Good

Over: STREAM

2.0N 7.5E OF AMERICUS, Lyon, KS

Built 1999 Load: 31.7 t ADT: 20

RD. 190 957.2-516

Good

Over: BADGER CREEK

7.2E 2.0N OF EMPORIA, Lyon, KS

Built 1979 Load: 31.7 t ADT: 50

RD 100 (D.7-100.0)

Good

Over: PHENIS CREEK

5.8W 3.0N of Olpe, Lyon, KS

Built 2015 Load: 31.8 t ADT: 20

RS 1505 E.8-35.0

Good

Over: STREAM

2.0S 5.5W OF OLPE, Lyon, KS

Built 1987 Load: 32.0 t ADT: 50

I-335 HWY (KTA) SB

Good

Over: TROUBLESOME CREEK

3.00 MI NE US-50, Lyon, KS

Built 1956 Load: 32.0 t ADT: 5,450

I-335 HWY (KTA) NB

Good

Over: TROUBLESOME CREEK

3.01 MI NE US-50, Lyon, KS

Built 1956 Load: 32.0 t ADT: 5,450

RD H.2 (H.2-357)

Good

Over: STREAM

1.2N 2.7W OF ALLEN, Lyon, KS

Built 2005 Load: 32.2 t ADT: 50

I-335 HWY (KTA) SB

Good

Over: 142 MILE CREEK

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

Built 1956 Load: 32.2 t ADT: 5,450

I-335 HWY (KTA) NB

Good

Over: 142 MILE CREEK

3.74 MI NE N JCT K-9, Lyon, KS

Built 1956 Load: 32.2 t ADT: 5,450

K130 HWY

Good

Over: NEOSHO RIVER

7.59 MI S I35, Lyon, KS

Built 1963 Load: 32.4 t ADT: 950

RD 6Q 933.1-552.0

Good

Over: ROCK CREEK

6.0W 1.0S OF OLPE, Lyon, KS

Built 1940 Load: 32.5 t ADT: 10

RD. U (U.0-115)

Good

Over: STREAM

4.0W 1.6N OF HARTFORD, Lyon, KS

Built 1991 Load: 32.6 t ADT: 15

CoRd L 945-484.4

Good

Over: Hill Creek

0.1N of Allen, Lyon, KS

Built 2012 Load: 32.7 t ADT: 25

RD. G 937.0-534.0

Good

Over: DRY CREEK

4.0W 3.0N OF OLPE, Lyon, KS

Built 1994 Load: 32.7 t ADT: 15

RD Y 967.0-544.2

Good

Over: STREAM

5.2S 1.0W OF HARTFORD, Lyon, KS

Built 1994 Load: 32.7 t ADT: 20

IBP ACCESS RD.

Good

Over: DRAINAGE DITCH

0.1S OF 6TH. & PRAIRIE, Lyon, KS

Built 1990 Load: 32.7 t ADT: 4,000

18TH Avenue

Good

Over: STREAM

0.4W OF GRAPHIC ARTS RD., Lyon, KS

Built 1994 Load: 32.7 t ADT: 785

K99 HWY

Good

Over: DUCK CREEK

1.80 MI N OF KTA N JCT, Lyon, KS

Built 1981 Load: 32.7 t ADT: 655

RD. G 937.0-538.3

Good

Over: STREAM

0.7N 4.2W OF OLPE, Lyon, KS

Built 1992 Load: 32.8 t ADT: 10

W.8-60 (RS 1122)

Good

Over: STREAM

4.0S 2.2W OF HARTFORD, Lyon, KS

Built 1988 Load: 33.4 t ADT: 66

K99 HWY

Good

Over: HILL CREEK

3.70 MI N OF KTA N JCT, Lyon, KS

Built 1981 Load: 33.6 t ADT: 655

K99 HWY

Good

Over: NEOSHO RIVER

0.31 MI N I35, Lyon, KS

Built 1985 Load: 33.6 t ADT: 1,680

I-35 HWY SB (KTA)

Good

Over: LOCAL RD, PHENIS CREEK

7.68 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 33.8 t ADT: 8,600

I-35 HWY NB (KTA)

Good

Over: LOCAL RD, PHENIS CREEK

7.69 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 33.8 t ADT: 8,600

ROAD E

Good

Over: STREAM

6 W & 1.2 S OLPE, Lyon, KS

Built 2009 Load: 33.9 t ADT: 35

LOCAL RD Y.7-290

Good

Over: STREAM

4.0N OF READING, Lyon, KS

Built 1992 Load: 33.9 t ADT: 20

SOUTH AVENUE

Good

Over: INT. STREAM

0.3E OF SOUTH & PRAIRIE, Lyon, KS

Built 1990 Load: 33.9 t ADT: 6,000

RD 240 963.6-506

Good

Over: MUD CREEK

1.0S 2.0W OF READING, Lyon, KS

Built 1992 Load: 34.0 t ADT: 20

RD C 929-504.9

Good

Over: STREAM

3.0W 0.1N OF AMERICUS, Lyon, KS

Built 1990 Load: 34.3 t ADT: 5

RD 300 (E.1-10.0)

Good

Over: TRIB. TO WRIGHT CREEK

6.0N 0.9W OF AMERICUS, Lyon, KS

Built 1992 Load: 34.3 t ADT: 35

RD. 80 941.4-538

Good

Over: EAGLE CREEK

1.0N 1.7W OF OLPE, Lyon, KS

Built 1940 Load: 34.4 t ADT: 10

I-35 HWY SB

Good

Over: RS1643, K130 HWY

JCT I35&K130, Lyon, KS

Built 1975 Load: 34.4 t ADT: 7,377

RD. L 945-534.4

Good

Over: STREAM

2.2N OF OLPE, Lyon, KS

Built 1988 Load: 34.5 t ADT: 50

RD 120 951.6-530

Good

Over: COAL CREEK

3.0E 4.5N OF OLPE, Lyon, KS

Built 1974 Load: 34.6 t ADT: 80

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