Alleghany County Bridge Report Card

Alleghany County scores 56 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F56 / 100

Local infrastructure snapshot

Alleghany County, North Carolina

Alleghany County has 117 bridges in the National Bridge Inventory, with 17 rated poor and 4 rated scour-critical. Its poor-condition share of 14.5% is above the 7.1% statewide average. Poor-condition bridges carry about 8,700 daily vehicle crossings.

117Total Bridges

17Poor (14.5%)

49Fair (41.9%)

4Scour-Critical

Quote-Ready Local Facts

14.5%of county bridges are in poor condition, compared with 7.1% statewide and 6.7% nationally.

8,700daily vehicle crossings are on poor-condition bridges in the county.

4bridges are rated scour-critical, or 3.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Alleghany County a Bridge Condition Exposure Score of 56/100 (F). The county has 117 bridges in the National Bridge Inventory, including 17 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 8,700 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	14.5%	29.1
Poor-condition traffic exposure	25	10.2% of measured traffic	7.6
Scour-critical bridge share	20	3.4%	6.8
Average age vs national baseline	10	44 years vs 48 nationally	0.0
Traffic-data completeness	5	85,522 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	14.5%
State Poor-Condition Share	7.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.4%
Average Bridge Age	44 years
Poor-Condition Traffic Exposure	8,700 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeBlue Ridge Parkway over Big Pine Creek — 1,347 vehicles/day Oldest Listed BridgeUs21 over Little River — built in 1920 All County BridgesBrowse every bridge record in Alleghany County.

Top Bridges to Watch in Alleghany County

Bridge	Reason	Condition	Daily Traffic	Year Built
Stone Mtn.rd. over Stone Mountain Creek	Poor condition + traffic exposure	Poor	100	1960
Blue Ridge Parkway over Brush Creek	Poor condition + traffic exposure	Poor	1,347	1936
Blue Ridge Parkway over Big Pine Creek	Poor condition + traffic exposure	Poor	1,347	1937
Blue Ridge Parkway over Big Pine Creek	Poor condition + traffic exposure	Poor	1,347	1937
Blue Ridge Parkway over Big Pine Creek	Poor condition + traffic exposure	Poor	1,347	1937
Blue Ridge Parkway over Big Pine Creek	Poor condition + traffic exposure	Poor	1,347	1938
Sr1426 over Little River	Poor condition + traffic exposure	Poor	630	1988
Sr1403 over Ut To New River	Poor condition + traffic exposure	Poor	300	1974
Sr1113 over Glade Creek	Poor condition + traffic exposure	Poor	220	1967
Sr1459 over Little Pine Creek	Poor condition + traffic exposure	Poor	210	1979

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.