Union County Bridge Report Card

Union County scores 35 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F35 / 100

Local infrastructure snapshot

Union County, South Carolina

Union County has 132 bridges in the National Bridge Inventory, with 21 rated poor and 41 rated scour-critical. Its poor-condition share of 15.9% is above the 6.3% statewide average. Poor-condition bridges carry about 18,775 daily vehicle crossings.

132Total Bridges

21Poor (15.9%)

63Fair (47.7%)

41Scour-Critical

Quote-Ready Local Facts

15.9%of county bridges are in poor condition, compared with 6.3% statewide and 6.7% nationally.

18,775daily vehicle crossings are on poor-condition bridges in the county.

41bridges are rated scour-critical, or 31.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Union County a Bridge Condition Exposure Score of 35/100 (F). The county has 132 bridges in the National Bridge Inventory, including 21 in poor condition and 41 rated scour-critical. Poor-condition bridges carry about 18,775 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	15.9%	31.8
Poor-condition traffic exposure	25	16.3% of measured traffic	12.2
Scour-critical bridge share	20	31.1%	20.0
Average age vs national baseline	10	50 years vs 48 nationally	0.8
Traffic-data completeness	5	115,125 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	15.9%
State Poor-Condition Share	6.3%
National Poor-Condition Share	6.7%
County Scour-Critical Share	31.1%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	18,775 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSc 49 over Fairforest Creek — 3,200 vehicles/day Oldest Listed BridgeUS 176 over Padgetts Creek — built in 1922 All County BridgesBrowse every bridge record in Union County.

Top Bridges to Watch in Union County

Bridge	Reason	Condition	Daily Traffic	Year Built
Sc 49 over Fairforest Creek	Poor condition + traffic exposure	Poor	3,200	1931
Sc 114 over Sandy Run Creek	Poor condition + traffic exposure	Poor	1,150	1954
S-44-73 over Mill Creek	Poor condition + traffic exposure	Poor	550	1960
S-44-12 over Mcclure Creek	Poor condition + traffic exposure	Poor	250	1958
S-44-408 over Rocky Creek	Poor condition + traffic exposure	Poor	200	1974
S-44-68 over Dutchmans Creek	Poor condition + traffic exposure	Poor	175	1960
S-44-67 over Sugar Creek	Poor condition + traffic exposure	Poor	125	1961
S-44-438 over Cox Creek	Poor condition + traffic exposure	Poor	125	1975
S-44-113 over Hobson Creek	Poor condition + traffic exposure	Poor	100	1957
Sc 72 over Tyger River	Poor condition + traffic exposure	Poor	2,500	1958

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.