Mercer County, MO

137 public highway bridges

Mercer County Bridge Snapshot

Mercer County, Missouri contains 137 public highway bridges in the FHWA National Bridge Inventory. Roughly 44.5% are rated “Good,” 36.5% “Fair,” 19% “Poor,” and 19% 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 MO 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.

137
Total Bridges
44.5%
Good
19%
Poor
19%
Structurally Deficient

Condition Distribution

Good
44.5% (61)
Fair
36.5% (50)
Poor
19% (26)
SD
19% (26)

All Bridges (137)

HARMONICA RD

Good

Over: CAIN BR

S 15 T 64 N R 24 W, Mercer, MO

Built 2004 Load: 13.5 t ADT: 25

FLORENCE ST

Good

Over: BR LIT MEDICINE CR

S 23 T 65 N R 23 W, Mercer, MO

Built 2005 Load: 14.4 t ADT: 35

HAMLET ST

Good

Over: BR OF MARTIN CR

S 16 T 64 N R 25 W, Mercer, MO

Built 1997 Load: 15.3 t ADT: 35

BIGHORN RD

Good

Over: TRIB OF MINERAL SP

S 2 T 66 N R 24 W, Mercer, MO

Built 1997 Load: 17.1 t ADT: 30

KALE ST

Good

Over: PETEET CR

S 9 T 63 N R 25 W, Mercer, MO

Built 1998 Load: 18.0 t ADT: 10

HALLEY RD

Good

Over: TRIB OF SANDY CR

S 20 T 64 N R 25 W, Mercer, MO

Built 2001 Load: 18.9 t ADT: 25

INNSBRUCK ST

Good

Over: E HONEY CR

S 23 T 64 N R 23 W, Mercer, MO

Built 2004 Load: 18.9 t ADT: 35

GATE PL

Good

Over: WILDCAT CR

S 26 T 65 N R 24 W, Mercer, MO

Built 2015 Load: 19.8 t ADT: 10

BIGHORN RD

Good

Over: MINERAL SPRING BR

S 11 T 66 N R 24 W, Mercer, MO

Built 1997 Load: 20.7 t ADT: 20

ICEBOX ST

Good

Over: BR OF W MUDDY CR

S 24 T 64 N R 25 W, Mercer, MO

Built 1998 Load: 20.7 t ADT: 20

ELDER ST

Good

Over: BIG BR

S 7 T 65 N R 24 W, Mercer, MO

Built 2000 Load: 21.6 t ADT: 15

GEYSER AVE

Good

Over: BR LIT MEDICINE CR

S 1 T 64 N R 23 W, Mercer, MO

Built 1998 Load: 23.4 t ADT: 20

BELL AVE

Good

Over: COLLIER BRANCH

S 14 T 66 N R 24 W, Mercer, MO

Built 1997 Load: 25.2 t ADT: 25

HAMLET ST

Good

Over: MARTIN CR

S 15 T 64 N R 25 W, Mercer, MO

Built 1998 Load: 26.1 t ADT: 35

FLAGPOLE RD

Good

Over: TRIB TO MUDDY CR

S 5 T 65 N R 23 W, Mercer, MO

Built 2011 Load: 26.1 t ADT: 100

ARCADIA ST

Good

Over: MINERAL SPRING BR

S 1 T 66 N R 24 W, Mercer, MO

Built 1996 Load: 27.0 t ADT: 35

ICEBOX ST

Good

Over: W MUDDY CR

S 24 T 64 N R 25 W, Mercer, MO

Built 2001 Load: 27.0 t ADT: 15

DAIRY ST

Good

Over: LITTLE CRK

S 6 T 65 N R 25 W, Mercer, MO

Built 2012 Load: 28.8 t ADT: 15

RT M E

Good

Over: LIT MUDDY CR

S 22 T 66 N R 23 W, Mercer, MO

Built 2022 Load: 29.7 t ADT: 574

HAMMOCK ST

Good

Over: BR OF W MUDDY CRK

S 13 T 64 N R 25 W, Mercer, MO

Built 2001 Load: 30.6 t ADT: 35

HARRIER RD

Good

Over: MUDDY CR

S 12 T 64 N R 24 W, Mercer, MO

Built 1999 Load: 31.5 t ADT: 15

BEECHNUT ST

Good

Over: W FK LITTLE RVR

S 6 T 66 N R 24 W, Mercer, MO

Built 1990 Load: 32.4 t ADT: 40

KANGAROO AVE

Good

Over: MARTIN CR

S 7 T 63 N R 25 W, Mercer, MO

Built 1990 Load: 32.4 t ADT: 20

JASPER RD

Good

Over: MUDDY CR

S 1 T 63 N R 24 W, Mercer, MO

Built 1993 Load: 32.4 t ADT: 35

INDEPENDENCE ST

Good

Over: MUDDY CR

S 25 T 64 N R 24 W, Mercer, MO

Built 1992 Load: 32.4 t ADT: 30

INTREPID ST

Good

Over: LITTLE MEDICINE CR

S 17 T 64 N R 22 W, Mercer, MO

Built 1988 Load: 32.4 t ADT: 35

JOGGER AVE

Good

Over: BR OF W MUDDY CRK

S 7 T 63 N R 24 W, Mercer, MO

Built 2010 Load: 32.4 t ADT: 40

US 136 E

Good

Over: SANDY CR

S 8 T 64 N R 25 W, Mercer, MO

Built 1985 Load: 32.4 t ADT: 1,074

INDIGO PL CRD 255

Good

Over: W FORK OF HONEY CR

S 21 T 64 N R 23 W, Mercer, MO

Built 2023 Load: 32.4 t ADT: 10

IMPERIAL ST

Good

Over: MUDDY CR

S 24 T 64 N R 24 W, Mercer, MO

Built 2002 Load: 33.3 t ADT: 40

ALPS AVE

Good

Over: WELDON FORK TRIB

S 34 T 67 N R 24 W, Mercer, MO

Built 2003 Load: 33.3 t ADT: 40

GAZEBO ST

Good

Over: MUDDY CR

S 31 T 65 N R 23 W, Mercer, MO

Built 2004 Load: 33.3 t ADT: 40

GASLIGHT PL

Good

Over: WILDCAT CR

S 4 T 64 N R 24 W, Mercer, MO

Built 2005 Load: 33.3 t ADT: 40

HALLEY RD

Good

Over: SANDY CR

S 8 T 64 N R 25 W, Mercer, MO

Built 2006 Load: 33.3 t ADT: 40

FALCON RD

Good

Over: TRIB SANDY CR

S 21 T 65 N R 25 W, Mercer, MO

Built 2015 Load: 34.2 t ADT: 25

FLAGPOLE RD

Good

Over: TRIB MUDDY CR

S 17 T 65 N R 23 W, Mercer, MO

Built 2015 Load: 34.2 t ADT: 5

BADGER ST

Good

Over: COAL CR

S 16 T 66 N R 25 W, Mercer, MO

Built 2024 Load: 34.2 t ADT: 40

KARMA AVE

Good

Over: MARTIN CR

S 8 T 63 N R 25 W, Mercer, MO

Built 1998 Load: 35.1 t ADT: 20

HARMONICA RD

Good

Over: WILDCAT CR

S 34 T 65 N R 24 W, Mercer, MO

Built 2004 Load: 35.1 t ADT: 35

BADGER ST

Good

Over: CONNER BR

S 18 T 66 N R 25 W, Mercer, MO

Built 2016 Load: 35.1 t ADT: 10

US 136 E

Good

Over: MUDDY CR

S 30 T 65 N R 23 W, Mercer, MO

Built 2017 Load: 36.0 t ADT: 889

BIGHORN RD

Good

Over: RAGAN BR

S 11 T 66 N R 24 W, Mercer, MO

Built 1997 Load: 36.9 t ADT: 15

DECAL ST

Good

Over: BRUSH CR

S 26 T 66 N R 25 W, Mercer, MO

Built 2001 Load: 36.9 t ADT: 40

BEDROCK AVE

Good

Over: TRIB W FORK LITTLE

S 1 T 66 N R 25 W, Mercer, MO

Built 2014 Load: 36.9 t ADT: 35

RT P S

Good

Over: BRUSHY CR

S 30 T 66 N R 24 W, Mercer, MO

Built 2016 Load: 36.9 t ADT: 64

ARIZONA ST

Good

Over: LIT MUDDY CR

S 33 T 67 N R 23 W, Mercer, MO

Built 1998 Load: 39.6 t ADT: 40

GALAXY AVE

Good

Over: SANDY CR

S 28 T 65 N R 25 W, Mercer, MO

Built 2001 Load: 40.5 t ADT: 40

GAZETTE RD

Good

Over: WEST HONEY CR

S 4 T 64 N R 23 W, Mercer, MO

Built 1999 Load: 41.4 t ADT: 15

RT E E

Good

Over: MUDDY CR

S 6 T 64 N R 23 W, Mercer, MO

Built 2008 Load: 41.4 t ADT: 337

JOCKEY ST

Good

Over: E HONEY CR

S 2 T 63 N R 23 W, Mercer, MO

Built 1999 Load: 42.3 t ADT: 40

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