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. M 947-506.6

Good

Over: DOW CREEK

0.5S 6.0E OF AMERICUS, Lyon, KS

Built 1988 Load: 27.7 t ADT: 30

RD A (A.0-13.9)

Good

Over: INDIAN CREEK

2.0N 5.0W OF AMERICUS, Lyon, KS

Built 1988 Load: 27.8 t ADT: 10

RD 40 967.2-546.0

Good

Over: FOUR MILE CREEK

6.0S 0.8W OF HARTFORD, Lyon, KS

Built 2003 Load: 27.8 t ADT: 10

RD 310 (F.9-9.0)

Good

Over: STREAM

2.5S 0.5E OF BUSHONG, Lyon, KS

Built 2008 Load: 27.9 t ADT: 20

RD U 959.0-478.7

Good

Over: ONION CREEK

4.0N 3.0E OF ADMIRE, Lyon, KS

Built 2017 Load: 27.9 t ADT: 10

RD 40 965.9-546.0

Good

Over: STREAM

1.1 W, 6.5 S OF HARTFORD, Lyon, KS

Built 2010 Load: 28.2 t ADT: 35

RS 151 Z.0-77.0

Good

Over: EAGLE CREEK

2.2S OF HARTFORD, Lyon, KS

Built 1996 Load: 28.4 t ADT: 1,265

RS 151 P.3-75.0

Good

Over: EAGLE CREEK

2.5E 0.5N OF OLPE, Lyon, KS

Built 2022 Load: 28.5 t ADT: 360

RS 1508 U.2-220.0

Good

Over: BADGER CREEK TRIB.

4.25W 3.0S OF READING, Lyon, KS

Built 2018 Load: 28.6 t ADT: 210

RD 140 (Y.0-140)

Good

Over: PLUM CREEK

0.5E of Neosho Rapids, Lyon, KS

Built 2015 Load: 28.6 t ADT: 20

RD G5 937.5-492.6

Good

Over: STREAM

3.0S 1.0E OF BUSHONG, Lyon, KS

Built 2011 Load: 28.7 t ADT: 10

RD 140 941.8-526.0

Good

Over: STREAM

2.0S OF EMPORIA, Lyon, KS

Built 1990 Load: 28.8 t ADT: 50

RD 190 (U.3-190)

Good

Over: STREAM

2.8W 4.0N NEOSHO RAPIDS, Lyon, KS

Built 2005 Load: 28.8 t ADT: 30

RD. X (X.0-375)

Good

Over: SALT CREEK

4.0N 6.0E OF ADMIRE, Lyon, KS

Built 2010 Load: 28.8 t ADT: 30

RD D 931.0-492.8

Good

Over: STREAM

3.5S 2.0W OF BUSHONG, Lyon, KS

Built 2002 Load: 28.9 t ADT: 30

K130 HWY

Good

Over: PLUM CREEK

3.28 MI S I35, Lyon, KS

Built 1963 Load: 29.0 t ADT: 885

RD 30 943.3-548.0

Good

Over: Stream

Road 30 between K & L, Lyon, KS

Built 2009 Load: 29.1 t ADT: 40

I-335 HWY (KTA) NB

Good

Over: ELM CREEK

1.18 MI NE US56 HWY, Lyon, KS

Built 1956 Load: 29.1 t ADT: 5,650

RS 2139 L.0-25.9

Good

Over: FOWLER CREEK

3.0S 1.5E OF EMPORIA, Lyon, KS

Built 1987 Load: 29.3 t ADT: 400

RD 20 935.6-550.0

Good

Over: STREAM

5.0S 5.35W OF OLPE, Lyon, KS

Built 2019 Load: 29.4 t ADT: 80

RD 340 937.9-486.0

Good

Over: STREAM

3.0W OF ALLEN, Lyon, KS

Built 2007 Load: 29.4 t ADT: 10

FAU 1107

Good

Over: A.T. & S.F. R.R.

6TH. ST. PRAIRIE -EMPORIA, Lyon, KS

Built 1990 Load: 29.4 t ADT: 6,985

RD K 943.0-540.6

Good

Over: TRIB. TO EAGLE CREEK

1.0W 0.6S OF OLPE, Lyon, KS

Built 1996 Load: 29.5 t ADT: 60

LOCAL RD W - 265.0

Good

Over: DUCK CREEK

1.5 N 2.5 W OF READING, Lyon, KS

Built 2011 Load: 29.5 t ADT: 30

RS 1902 (C.4-240)

Good

Over: NEOSHO RIVER

2.5W OF AMERICUS, Lyon, KS

Built 2005 Load: 29.6 t ADT: 258

RD 110 937.5-532.0

Good

Over: STREAM

3.5W 4.0N OF OLPE, Lyon, KS

Built 2007 Load: 29.7 t ADT: 50

RD 335 (A.6-6.5)

Good

Over: BLUFF CREEK

4.5W OF BUSHONG, Lyon, KS

Built 2021 Load: 29.8 t ADT: 5

RD 190 947.1-516.0

Good

Over: STREAM

2.0N 1.5E OF EMPORIA, Lyon, KS

Built 2015 Load: 29.8 t ADT: 60

I-35 HWY SB (KTA)

Good

Over: LOCAL ROAD, PHENIS CREEK

6.98 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 29.8 t ADT: 8,600

I-35 HWY NB (KTA)

Good

Over: LOCAL ROAD, PHENIS CREEK

6.99 MI NE CHASE CO LINE, Lyon, KS

Built 1956 Load: 29.8 t ADT: 8,600

RD. H 939.0-530.0

Good

Over: DRY CREEK

5.0N 3.0W OF OLPE, Lyon, KS

Built 2007 Load: 29.9 t ADT: 10

I-335 HWY (KTA) SB

Good

Over: LOCAL ROAD

2.75 MI NE US-50, Lyon, KS

Built 1956 Load: 29.9 t ADT: 5,450

I-335 HWY (KTA) NB

Good

Over: LOCAL ROAD

2.76 MI NE US-50, Lyon, KS

Built 1956 Load: 29.9 t ADT: 5,450

LOCAL RD T.7-270.0

Good

Over: STREAM

4.5W 2.0N OF READING, Lyon, KS

Built 2006 Load: 30.0 t ADT: 30

RD D 931.0-484.5

Good

Over: STREAM

2.0N 2.0W OF BUSHONG, Lyon, KS

Built 2019 Load: 30.1 t ADT: 10

RD 20 945.8-550.0

Good

Over: KELLY BRANCH

5.0S 0.2W OF OLPE, Lyon, KS

Built 2001 Load: 30.1 t ADT: 10

RD N (N.0-254)

Good

Over: DOW CREEK

8.6S 2.0W OF ADMIRE, Lyon, KS

Built 1996 Load: 30.1 t ADT: 10

RD. 120 933.3-530

Good

Over: PHENIS CREEK

5.5S 3.0E OF PLYMOUTH, Lyon, KS

Built 2006 Load: 30.2 t ADT: 20

RD. G 937.0-534.4

Good

Over: TRIB. TO DRY CREEK

4.0W 2.6N OF OLPE, Lyon, KS

Built 1997 Load: 30.2 t ADT: 30

RD 220 943.5-510

Good

Over: STREAM

3.0N OF EMPORIA, Lyon, KS

Built 1988 Load: 30.2 t ADT: 30

LOCAL ROAD 30

Good

Over: STREAM

4.0 S 2.5 W OF OLPE, Lyon, KS

Built 2011 Load: 30.3 t ADT: 30

Road 83 P.5

Good

Over: STREAM

2.0 N and 3.6 E of Olpe, Lyon, KS

Built 2009 Load: 30.4 t ADT: 30

RD Y 967.0-546.8

Good

Over: STREAM

7.0S 1.0W OF HARTFORD, Lyon, KS

Built 1990 Load: 30.4 t ADT: 20

RD J 941.1-504.9

Good

Over: TRIB. TO ALLEN CREEK

3.0E 0.1N OF AMERICUS, Lyon, KS

Built 2001 Load: 30.5 t ADT: 50

RD 260 947.4-502.0

Good

Over: STREAM

2.0N 6.5E OF AMERICUS, Lyon, KS

Built 2012 Load: 30.5 t ADT: 30

RD 270 949.1-500.0

Good

Over: STREAM

3.0 N & 7.0 E OF AMERICUS, Lyon, KS

Built 1997 Load: 30.5 t ADT: 30

RD 10 (T.3-10.0)

Good

Over: SCHOOL CREEK

6.0S 5.8E OF OLPE, Lyon, KS

Built 2003 Load: 30.5 t ADT: 35

RD Y (Y.0-159.8)

Good

Over: PLUM CREEK

1.0 E 1.0 N NEOSHO RAPIDS, Lyon, KS

Built 2002 Load: 30.5 t ADT: 50

CTY RD M (M.0-348)

Good

Over: STREAM

0.5N 1.0E OF ALLEN, Lyon, KS

Built 2007 Load: 30.6 t ADT: 10

RD N 949.0-490.7

Good

Over: DUCK CREEK

2.7S 2.0E OF ALLEN, Lyon, KS

Built 1994 Load: 30.6 t ADT: 45

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