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Bridge conditions in Lee County, South Carolina

91 inventoried bridges · 2 rated poor · 2025 National Bridge Inventory

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

2 of the 91 bridges the federal inventory lists in Lee County are rated poor; the rest split 42 good and 47 fair.

2 of the 91 bridges in Lee County, South Carolina, are rated in poor condition (2.2%) in the 2025 National Bridge Inventory, as of August 20, 2026.
42 bridges (46.2%) are rated good and 47 (51.6%) fair.
The median Lee County bridge was built in 1972.
The busiest poor-rated bridge is S-31-311 over Tib Stoney Run Creek (built 1957), carrying about 125 vehicles a day.

Good 46.2% · Fair 51.6% · Poor 2.2% of 91 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
S-31-311 over Tib Stoney Run Creek	1957	125	Poor
S-31-228 over Black River	1965	125	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
I-20 over Laws Branch	1972	29,500	Fair
I-20 over Mill Branch	1972	29,500	Fair
I-20 EB over Scape Ore Swamp	1971	15,350	Fair
I-20 EB over U.S. 15	1971	15,350	Good
I-20 WB over Scape Ore Swamp	1971	15,350	Fair
I-20 WB over US 15	1971	15,350	Good
I-20 EB over RR Scl	1972	14,750	Fair
I-20 WB over S.c.l. RR	1972	14,750	Fair
I-20 EB over Lynches River	1972	14,450	Fair
I-20 EB over Lynches River #2	1972	14,450	Fair

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

All of South Carolina: South Carolina 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.