McNairy County Bridge Report Card

McNairy County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C72 / 100

Local infrastructure snapshot

McNairy County, Tennessee

McNairy County has 218 bridges in the National Bridge Inventory, with 9 rated poor and 18 rated scour-critical. Its poor-condition share of 4.1% is at or below the 4.4% statewide average. Poor-condition bridges carry about 18,195 daily vehicle crossings.

218Total Bridges

9Poor (4.1%)

121Fair (55.5%)

18Scour-Critical

Quote-Ready Local Facts

4.1%of county bridges are in poor condition, compared with 4.4% statewide and 6.7% nationally.

18,195daily vehicle crossings are on poor-condition bridges in the county.

18bridges are rated scour-critical, or 8.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives McNairy County a Bridge Condition Exposure Score of 72/100 (C). The county has 218 bridges in the National Bridge Inventory, including 9 in poor condition and 18 rated scour-critical. Poor-condition bridges carry about 18,195 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	4.1%	8.3
Poor-condition traffic exposure	25	3.7% of measured traffic	2.8
Scour-critical bridge share	20	8.3%	16.5
Average age vs national baseline	10	41 years vs 48 nationally	0.0
Traffic-data completeness	5	489,823 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	4.1%
State Poor-Condition Share	4.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	8.3%
Average Bridge Age	41 years
Poor-Condition Traffic Exposure	18,195 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeFap 22 over Sam Bishop Ditch — 5,579 vehicles/day Oldest Listed BridgeFap 15 over Cypress Creek — built in 1927 All County BridgesBrowse every bridge record in McNairy County.

Top Bridges to Watch in McNairy County

Bridge	Reason	Condition	Daily Traffic	Year Built
Fap 22 over Sam Bishop Ditch	Poor condition + traffic exposure	Poor	5,579	1958
Fap 22 over N. Fork White Oak Creek	Poor condition + traffic exposure	Poor	5,579	1958
Fas 224 over White Oak Creek	Poor condition + traffic exposure	Poor	512	1963
Nfa 1631 over Woodville Creek	Poor condition + traffic exposure	Poor	111	2013
Fap 22 over White Oak Creek	Poor condition + traffic exposure	Poor	5,579	1958
Nfa A148 over Cypress Creek	Poor condition + traffic exposure	Poor	460	1965
Nfa A164 over Lick Creek	Poor condition + traffic exposure	Poor	165	1975
Nfa A805 over Graham Creek	Poor condition + traffic exposure	Poor	120	1975
Nfa A655 over Clear Creek	Poor condition + traffic exposure	Poor	90	1984
Fap 15 over Crooked Creek	Scour-critical foundation rating	Fair	10,669	1928

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.