Home › Missouri › Harrison County

Bridge conditions in Harrison County, Missouri

331 inventoried bridges · 74 rated poor · 2025 National Bridge Inventory

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

About one in 4 bridges in Harrison County is rated in poor condition: 74 of 331 on the federal inventory, one of the higher shares in Missouri.

74 of the 331 bridges in Harrison County, Missouri, are rated in poor condition (22.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
131 bridges (39.6%) are rated good and 126 (38.1%) fair.
The median Harrison County bridge was built in 1992.
The busiest poor-rated bridge is US 136 E over Is 35 (built 1973), carrying about 4,757 vehicles a day.

Good 39.6% · Fair 38.1% · Poor 22.4% of 331 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 136 E over Is 35	1973	4,757	Poor
Mo 13 S over Is 35	1973	1,898	Poor
Rt N E over Is 35	1968	933	Poor
US 69 S over Zadie Br	1925	390	Poor
20TH St over Bucks Br	1920	300	Poor
16TH St over Bucks Br	1930	300	Poor
Lincoln St over Sampson CR	1922	250	Poor
10TH St over Buck Br of Big CR	1932	100	Poor
E 330 Ave over Jefferson CR	1997	100	Poor
E 165 St over E Fk Big CR	1910	50	Poor
W 174 St over Overfl Dtch-fk Big	1998	40	Poor
W 310 St over White Oak CR	1993	40	Poor
E 300 Ave over Indian CR	1920	35	Poor
E 290 Ave over Donaby CR	1974	35	Poor
W 225 Ave over Shane CR	1910	35	Poor
E 280 Ave over Brush CR	1910	35	Poor
E 225 St over E Fk Big CR	1985	35	Poor
E 205 St over E Fk Big CR	1972	35	Poor
W 240 St over Pecks Br	1989	35	Poor
W 192 Ave over Trib of Big CR	1929	35	Poor
W 120 Ave over Samson CR	1920	35	Poor
E 240 Ave over Br of Cypress CR	1968	35	Poor
E 380 St over Br of Cypress CR	1974	35	Poor
E 110 St over Br of Big CR	1989	35	Poor
W 120 St over Shane CR	1972	30	Poor
W 130 St over Shane CR	1971	30	Poor
W 300 St over White Oak CR	1995	30	Poor
W 340 St over Crabapple Br	1962	30	Poor
W 150 St over W Fk Big CR	1989	25	Poor
E 182 St over Brush CR	1994	25	Poor
E 317 Ave over Br of Sugar CR	1978	25	Poor
E 333 Ave over Trib of Sugar CR	1992	25	Poor
W 290 St over White Oak CR	1936	20	Poor
E 330 St over Br of Sugar CR	1955	20	Poor
E 340 St over Sugar CR	1977	20	Poor
E 340 St over Br of Sugar CR	1930	20	Poor
W 345 St over White Oak CR	1998	20	Poor
W 210 Ave over Poor Tom Br	1975	20	Poor
E 250 Ave over Br of Cypress CR	1920	20	Poor
W 147 Ave over Br of Sampson CR	1991	20	Poor
W 117 St over W Fk of Big CR	1990	15	Poor
E 130 St over E Fk of Big CR	1960	15	Poor
E 130 St over Zadies CR	1960	15	Poor
W 180 Ave over Br of Big CR	1949	15	Poor
W 140 Ave over W Fk Big Muddy CR	1965	15	Poor
E 325 Ave over Lost CR	1962	15	Poor
W 160 Ave over Trib W Fk Little C	1938	15	Poor
E 240 Ave over Trib E Fk Big CR	1948	15	Poor
E 260 St over Trib of Trail CR	1959	15	Poor
E Klondike Rd over Br of Thompson Rvr	1992	15	Poor
E 320 Ave over Cat CR	1927	15	Poor
E 320 St over Sugar CR	1972	15	Poor
E 260 Ave over Br of Sugar CR	1936	15	Poor
E 267 Ave over Br of Sugar CR	1935	15	Poor
E 280 Ave over Br of Sugar CR	1930	15	Poor
W 110 Ave over Br of Sampson CR	1935	15	Poor
W 140 Ave over White Oak CR	1949	15	Poor
E 380 St over Sugar CR	1980	15	Poor
E 340 St over Br of Polecat CR	1977	15	Poor
W 200 Ave over Trib W Fk Big CR	1929	10	Poor
E 312 Ave over Trail CR	1996	10	Poor
E 350 St over Br of Cat CR	1983	10	Poor
W 385 St over White Oak CR	1988	10	Poor
W 130 St over Wolf CR	1988	5	Poor
W 190 Ave over Br of Big CR	1978	5	Poor
E 265 Ln over Trib of Big CR	1939	5	Poor
E 110 Pl over Jefferies CR	1976	5	Poor
W 140 Pl over E Fk Big Muddy CR	1972	5	Poor
W 245 St over Little CR	1984	5	Poor
E 337 Ln over Thompson Rvr Trib	1986	5	Poor
W 180 Ave over Trib of Big CR	1930	5	Poor
W 250 Pl over Pony Br	1932	5	Poor
E 370 Pl over Br of Sugar CR	1935	5	Poor
W 382 St over Latchel Br	1997	5	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Is 35 S over Bracken Br	1968	15,191	Fair
Is 35 S over Barber CR	1968	15,191	Fair
Is 35 S over Lit Pole Cat CR	1975	14,537	Fair
Is 35 S over Zadie CR	1968	7,850	Fair
Is 35 S over Crd E 100 St	1969	7,850	Fair
Is 35 N over Sp 69 Abandoned RR	1972	7,564	Fair
Is 35 S over E Fk Big CR	1961	7,373	Fair
Is 35 S over Sp 69 Abandoned RR	1961	7,373	Fair
Is 35 N over Zadie CR	1968	7,341	Fair
Is 35 N over Crd E 100 St	1969	7,341	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 Harrison County → - all 331, 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.