Frederick County Bridge Report Card

Frederick County scores 94 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A94 / 100

Local infrastructure snapshot

Frederick County, Virginia

Frederick County has 168 bridges in the National Bridge Inventory, with 3 rated poor and 0 rated scour-critical. Its poor-condition share of 1.8% is at or below the 3.4% statewide average. Poor-condition bridges carry about 10,343 daily vehicle crossings.

168Total Bridges

3Poor (1.8%)

105Fair (62.5%)

0Scour-Critical

Quote-Ready Local Facts

1.8%of county bridges are in poor condition, compared with 3.4% statewide and 6.7% nationally.

10,343daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Frederick County a Bridge Condition Exposure Score of 94/100 (A). The county has 168 bridges in the National Bridge Inventory, including 3 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 10,343 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	1.8%	3.6
Poor-condition traffic exposure	25	0.7% of measured traffic	0.5
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	52 years vs 48 nationally	1.7
Traffic-data completeness	5	1,445,022 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	1.8%
State Poor-Condition Share	3.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	10,343 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeBack Mountain RD over Gap Run — 5,164 vehicles/day Oldest Listed BridgeChestnut Grove RD over Back Creek — built in 1917 All County BridgesBrowse every bridge record in Frederick County.

Top Bridges to Watch in Frederick County

Bridge	Reason	Condition	Daily Traffic	Year Built
Back Mountain RD over Gap Run	Poor condition + traffic exposure	Poor	5,164	1981
Valley Mill RD over Abrams Creek	Poor condition + traffic exposure	Poor	4,846	1932
Siler RD over Brush Creek	Poor condition + traffic exposure	Poor	333	1932
I-81 over Stephens Run	High traffic	Good	55,640	1965
I-81 over Thomas Run	High traffic	Good	53,468	1965
I-81 Nbl over Route 11	High traffic	Fair	35,288	1964
I-81 Nbl over Abrams Creek & Pvt RD	High traffic	Fair	35,134	1964
I-81 Sbl over Abrams Creek & Pvt RD	High traffic	Fair	34,099	1964
I-81 Nbl over Csx Transportation	High traffic	Fair	33,000	1964
I-81 Nbl over Red Bud Run	High traffic	Fair	32,420	1965

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.