Mason County Bridge Report Card

Mason County scores 60 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D60 / 100

Local infrastructure snapshot

Mason County, West Virginia

Mason County has 137 bridges in the National Bridge Inventory, with 21 rated poor and 1 rated scour-critical. Its poor-condition share of 15.3% is at or below the 17.8% statewide average. Poor-condition bridges carry about 30,660 daily vehicle crossings.

137Total Bridges

21Poor (15.3%)

75Fair (54.7%)

1Scour-Critical

Quote-Ready Local Facts

15.3%of county bridges are in poor condition, compared with 17.8% statewide and 6.7% nationally.

30,660daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Mason County a Bridge Condition Exposure Score of 60/100 (D). The county has 137 bridges in the National Bridge Inventory, including 21 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 30,660 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	15.3%	30.7
Poor-condition traffic exposure	25	10.0% of measured traffic	7.5
Scour-critical bridge share	20	0.7%	1.5
Average age vs national baseline	10	36 years vs 48 nationally	0.0
Traffic-data completeness	5	306,089 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	15.3%
State Poor-Condition Share	17.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.7%
Average Bridge Age	36 years
Poor-Condition Traffic Exposure	30,660 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeWv 817 over Ninemile Creek — 11,200 vehicles/day Oldest Listed BridgeCounty Route 27 over Sixteenmile Creek — built in 1904 All County BridgesBrowse every bridge record in Mason County.

Top Bridges to Watch in Mason County

Bridge	Reason	Condition	Daily Traffic	Year Built
Wv 817 over Ninemile Creek	Poor condition + traffic exposure	Poor	11,200	1957
Wv 817 over Fork Of Pond Branch	Poor condition + traffic exposure	Poor	7,200	1930
Wv 62 over Oldtown Creek	Poor condition + traffic exposure	Poor	5,800	1942
Wv 62 over West Creek	Poor condition + traffic exposure	Poor	1,300	1925
County Route 37 over Sixteenmile Creek	Poor condition + traffic exposure	Poor	950	1960
Wv 62 over Thirteenmile Creek	Poor condition + traffic exposure	Poor	900	1951
County Route 29 over Crab Creek	Poor condition + traffic exposure	Poor	500	1979
CR 29 over Crab Creek	Poor condition + traffic exposure	Poor	500	1979
County Route 15 over Oldtown Creek	Poor condition + traffic exposure	Poor	400	1952
CR 27 over Upper Fivemile Creek	Poor condition + traffic exposure	Poor	300	1924

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.