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Bridge conditions in Johnson County, Indiana

230 inventoried bridges · 23 rated poor · 2025 National Bridge Inventory

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

Johnson County has 23 bridges rated poor out of 230 inventoried, a 10.0% share that puts it well above the national rate of about 7%.

23 of the 230 bridges in Johnson County, Indiana, are rated in poor condition (10.0%) in the 2025 National Bridge Inventory, as of August 20, 2026.
92 bridges (40.0%) are rated good and 115 (50.0%) fair.
The median Johnson County bridge was built in 1985.
The busiest poor-rated bridge is Smith Valley Road over Conrail Railroad (built 1972), carrying about 16,930 vehicles a day.

Good 40.0% · Fair 50.0% · Poor 10.0% of 230 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
Smith Valley Road over Conrail Railroad	1972	16,930	Poor
CR 500 North over Grassy Creek	1985	7,111	Poor
CR 700 North over Leatherwood Creek	1950	3,191	Poor
CR 700 North over Campbell Ditch	1978	3,191	Poor
CR 300 South over Vandiver Ditch	1978	2,540	Poor
Leisure Lane over Pleasant Run Creek	1955	2,061	Poor
CR 500 West over Indian Creek	1982	900	Poor
CR 575 West over South Prong Stotts CR	1978	900	Poor
CR 575 West over North Prong Stotts CR	1968	900	Poor
CR 400 S over I-65	1969	712	Poor
CR 400 South over Sugar Creek	1978	712	Poor
Fry Road over Pleasant Run Creek	1987	600	Poor
CR 700 East over Little Sugar Creek	1972	369	Poor
CR 625 West over Crooked Creek	1960	363	Poor
CR 550E (old US 31 over Sugar Creek	1925	324	Poor
CR 250 South over Youngs Creek	1970	275	Poor
CR 450 West over Goose Creek	1975	269	Poor
CR 225 West over Roberts Ditch	1984	258	Poor
Division Road over North Prong Stotts CR	1979	102	Poor
Woodland Streams over Waterloo Run	1980	100	Poor
CR 550 South over Herriotts Creek	1984	88	Poor
CR 350 South over Amity Ditch	1960	65	Poor
CR 750 West over Henderson Creek	1935	41	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
I-65 over Drainage Ditch	1971	92,074	Good
I-65 over Drainage Ditch	1969	55,807	Fair
SR 37 Sbl over Bluff Creek	2023	47,800	Good
SR 37 Nbsb over North Bluff Creek	2022	47,800	Good
I-65 NB over Hurricane Creek	2017	38,171	Good
I-65 NB over Greenwood RD/950 N	2016	37,414	Good
I-65 SB over Greenwood RD/950 N	2016	34,692	Good
SR 37 NB & Ramp over County Line Road	2023	34,050	Good
SR 37 SB over County Line Road	2022	34,050	Good
US 31 over Pleasant Run Creek	1991	33,232	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 230, busiest first, each with its own condition record.

All of Indiana: Indiana 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.