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Every bridge in Iron County, Missouri

Name: Every bridge in Iron County, Missouri
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

126 inventoried bridges, busiest first

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

Iron County, Missouri, has 126 bridges in the 2025 National Bridge Inventory: 37 rated good, 76 fair, and 13 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
Mo 21 S over Knob CR	1967	6,248	Fair
Old Rte 21 over Stouts CR	1926	4,000	Fair
Mo 21 S over Stouts CR	1967	3,870	Fair
Rt N N over Indian CR	1932	3,718	Fair
Rt N N over UP RR	2007	3,718	Good
Mo 21 S over Claybaugh CR	1985	3,513	Good
Mo 21 S over Minor CR	1985	3,513	Good
Mo 21 S over Palmar CR	1985	3,513	Fair
Mo 72 E over Mo 21 UP RR CR	1930	2,672	Fair
Mo 32 E over Crooked CR	1932	2,578	Fair
Mo 221 S over Br Knob CR	1954	2,220	Fair
Mo 221 S over Knob Br	1954	2,220	Fair
Mo 221 S over W Br of Knob CR	2000	2,220	Fair
Mo 21 S over Reeds CR	2011	2,202	Good
Mo 72 E over Br of Stouts CR	1930	1,941	Good
Mo 72 E over Martin Br	1928	1,941	Good
Mo 72 E over Pearson CR	1930	1,941	Fair
Mo 72 E over Rankin Br	1930	1,941	Fair
Mo 72 E over Stouts CR	2019	1,941	Good
Mo 21 S over Belleview CR	1996	1,825	Fair
Mo 21 S over Middlebrook CR	1967	1,692	Fair
Mo 21 S over Trib of Logan CR	1996	1,692	Fair
Mo 49 S over Quarry Rd	1982	1,645	Fair
Mo 49 S over Wildcat CR	1925	1,551	Fair
Mo 49 S over Hampton Br	1924	1,344	Fair
Mo 49 S over Sutton Br	1924	1,344	Fair
Mo 49 S over Cave Hollow Br	1986	1,237	Fair
Mo 49 S over Concannon CR	1922	1,237	Fair
Mo 49 S over Goff Br	1986	1,237	Good
Mo 49 S over Huff Br	1922	1,237	Fair
Mo 49 S over UP RR Big CR	1945	1,237	Fair
Rt N S over Black CR	1974	1,062	Fair
Rt N S over Black Rvr	1976	1,062	Fair
Rt N S over Mills CR	1976	1,062	Good
Mo 49 S over Big CR	2018	973	Good
Mo 49 S over Br	1924	973	Poor
Mo 49 S over Little Brushy Cree	2024	973	Good
Mo 49 S over Sutton Br	1924	973	Good
Mo 49 S over UP RR	1927	973	Poor
Rt E E over Br Marble CR	1978	931	Good
Rt E E over Br Marble CR	1978	931	Fair
Rt E E over Br Marble CR	1930	931	Fair
Rt E E over Br Marble CR	1932	931	Good
Rt E E over Br Marble CR	1931	931	Good
Rt E E over Marble CR	1976	931	Good
Rt E E over Marble CR	1976	931	Fair
Rt E E over Marble CR	1978	931	Good
Rt E E over Marble CR	1965	931	Fair
Rt E E over Marble CR	1936	931	Poor
Rt E E over Marble CR Br	1976	931	Good
Rt E E over UP RR	1948	931	Fair
Mo 21 S over Carver CR	2018	864	Good
Mo 21 S over Mill CR	1932	864	Fair
Mo 32 E over Cedar CR	1982	860	Fair
Mo 32 E over Cedar CR	1922	860	Fair
Mo 32 E over Keesling CR	1922	860	Fair
Mo 32 E over Richardson CR	1922	860	Poor
Thompson Rd over Creek	1930	800	Poor
St Marys Rd over Knob CR	1988	750	Fair
Mo 32 E over Kaolin CR	1926	689	Fair
Mo 143 S over Big CR	1933	590	Fair
Mo 143 S over Hawk Br	1973	590	Fair
E Madison St over UP RR	1967	500	Fair
Rt O S over Belleview CR	1957	392	Fair
Rt O S over Imboden Fk	1957	392	Fair
Rt O S over Imboden Fk	1957	392	Good
Rt U E over Br E Fk Cedar CR	1922	375	Poor
Old Hwy 21 over Creek	1922	350	Fair
Rt K E over Bear Br	1936	306	Good
Rt K E over Big CR	1933	306	Fair
County Rd 31 over Br of St Francis R	1968	300	Good
County Rd 123 over Big CR	2008	250	Good
County Rd 42 over Knob CR	2008	250	Fair
Rt M E over Mill Dam CR	1948	248	Fair
Rt A S over E Fk Kaolin CR	1933	210	Fair
Rt A S over Ottery CR	1970	210	Fair
Rt A S over Ottery CR	1970	210	Fair
Rt A S over Ottery CR	1970	210	Fair
Rt A S over Peter Cave Br	1970	210	Fair
County Rd 20 over Gum Spring CR	1922	200	Fair
County Rd 20 over Gum Spring CR	1922	200	Fair
County Rd 96 over St Francois Rvr	1923	200	Fair
N Main St over Knob CR	1972	200	Poor
Ridge Rd-124 over Big CR	1995	200	Good
Rt C E over Crane Pond CR	1948	193	Fair
Rt Aa E over Carver CR	1963	180	Fair
Rt Bb E over Br Brush Hollow	1962	179	Fair
Rt Bb E over Brushy CR	1962	179	Good
Rt Bb E over Brushy Hollow	1962	179	Fair
Mo 49 S over Mid Fk Black Rvr	1984	112	Fair
Banner Rd over Br of Cedar CR	1945	100	Fair
Banner Rd over Reid CR	1950	100	Poor
Bufford Bottom over Br of St Francis R	1935	100	Fair
Cemetery Rd over Br of Wildcat CR	2016	100	Good
County Rd 020 over Cedar CR	1950	100	Poor
County Rd 157 over Goose CR	1978	100	Fair
County Rd 167 over Black CR	2012	100	Good
County Rd 20 over Cedar CR	1999	100	Good
Desarc Turnoff-167 over Big CR	1930	100	Fair
Mulberry St over Br of Stouts CR	1960	100	Fair
Rt Z S over Beasly Hollow Br	1958	97	Fair
Rt Z S over Courtois CR	1958	97	Good
CR 53 over Logan CR	2023	75	Good
Lower Carver 121 over Lit Carver CR	1972	75	Good
Minimun Rd over Crane Pond CR	1950	75	Fair
Adam Creek Rd over Abbott CR	1998	50	Poor
County Rd 149 over Funk CR	1940	50	Fair
Harry Bays over Indian CR	1975	50	Fair
Harry Bays-001 over Indian CR	1975	50	Fair
Industrial Dr over Knob Br	1990	50	Fair
Upper Detmer Rd over Marble CR	2017	50	Good
Ridge Rd-124 over Crane Pond CR	1940	45	Good
Sutton Hollow -147 over Br of Richland CR	1965	45	Fair
Beaver Slide Rd over Creek	1950	40	Fair
County Rd 79 over Henderson CR	1935	40	Fair
Adams CR Rd over Mid Fk Black Rvr	1991	35	Fair
Adams Hollow -154 over Creek	1930	35	Poor
Flat Woods Rd over Creek	1945	35	Fair
Morning Side Ln over Br of Strouts CR	2019	35	Good
St Marys Rd over Br of Stouts CR	1980	35	Poor
Barrell Lotz Rd over Br of Big CR	2004	30	Good
Barrell Lotz Rd over Br of Big CR	2004	20	Good
County Rd 100 over Stouts CR	2003	20	Good
County Rd 119 over Lit Carver CR	1975	15	Fair
Leonard Huff -137 over Sulphur CR	1972	15	Fair
Service Road over Council Bluff Lake	1978	5	Poor

Source: FHWA National Bridge Inventory, 2025.

Iron County bridge conditions · Missouri bridges by county.

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