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Bridge conditions in Johnson County, Missouri

475 inventoried bridges · 33 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Johnson County tracks close to typical: 33 of its 475 inventoried bridges (6.9%) are rated poor, against a national rate of about 7%.

33 of the 475 bridges in Johnson County, Missouri, are rated in poor condition (6.9%) in the 2025 National Bridge Inventory, as of August 20, 2026.
166 bridges (34.9%) are rated good and 276 (58.1%) fair.
The median Johnson County bridge was built in 1992.
The busiest poor-rated bridge is US 50 E over UP RR (built 1968), carrying about 8,279 vehicles a day.

Good 34.9% · Fair 58.1% · Poor 6.9% of 475 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
US 50 E over UP RR	1968	8,279	Poor
US 50 W over UP RR	1956	6,420	Poor
Washington Ave over Br of Long Br CR	1998	1,000	Poor
Rt M S over Snail CR	1947	552	Poor
Rt V E over Colburn CR	1951	551	Poor
Rt Tt E over Hornsby Br	1955	345	Poor
Co Rd SW 850 over Hogan Fk	1912	167	Poor
Co Rd NW 1771 over Br S Fk Blackwater	1989	110	Poor
Co Rd SW 801 over Trib of Big CR	1989	110	Poor
Co Rd NW 1051 over Lit Blackwater CR	2005	110	Poor
Co Rd NE 421 over Cottonwood Br	1989	91	Poor
Co Rd SE 650 over Clear Fk	1900	84	Poor
Co Rd NE 1150 over Flagstaff CR	1900	65	Poor
Co Rd NE 521 over Mulkey CR	1988	60	Poor
Co Rd SW 401 over Hogan Fk	1990	60	Poor
Co Rd NW 701 over Br of Honey CR	1900	45	Poor
Co Rd NW 575 over Walnut CR	1900	45	Poor
Co Rd NE 151 over Colburn Br	1900	45	Poor
Co Rd NW 1251 over Little CR	1997	45	Poor
Co Rd NW 1621 over Br S Fk Blackwater	1930	45	Poor
Co Rd SW 800 over Hogan Fk	1900	45	Poor
Co Rd SW 800 over E Fk Post Oak CR	1900	45	Poor
Co Rd SW 600 over Brawley CR	1980	45	Poor
Co Rd SE 601 over Fk Blackwater Rvr	1992	45	Poor
Co Rd SE 651 over Copperas CR	1900	45	Poor
Co Rd SE 1300 over Br E Fork Tebo CR	1900	45	Poor
Co Rd SW 1200 over Norris CR	1989	45	Poor
Co Rd SW 1621 over Scaly Bark CR	1990	45	Poor
Co Rd NE 671 over Mulkey CR	1900	40	Poor
Co Rd SE 1250 over Br Mid Fk Tebo CR	1989	40	Poor
Co Rd SW 301 over E Fk Post Oak CR	1900	40	Poor
Co Rd NW 701 over Honey CR	1999	35	Poor
Co Rd SW 700 over Br E Fk Post Oak C	1900	30	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US 50 E over Mayes Br	1968	18,503	Fair
US 50 E over Trib Blackwater Rv	1924	17,553	Fair
Bu 13 S over US 50	1959	17,494	Fair
US 50 W over Post Oak CR	1967	14,542	Fair
Bu 13 S over UP RR	1963	14,241	Fair
US 50 W over Devils Br	1967	10,624	Fair
US 50 E over Robinson CR	1965	10,534	Fair
US 50 E over Post Oak CR	1924	10,042	Fair
US 50 E over Blackwater Rvr	1965	9,903	Fair
US 50 E over Clear Fk CR	1983	9,829	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

Every bridge in Johnson County → - all 475, busiest first, each with its own condition record.

All of Missouri: Missouri bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.