Decatur County Bridge Report Card

Decatur County scores 84 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B84 / 100
Local infrastructure snapshot

Decatur County, Tennessee

Decatur County has 104 bridges in the National Bridge Inventory, with 1 rated poor and 7 rated scour-critical. Its poor-condition share of 1.0% is at or below the 4.4% statewide average. Poor-condition bridges carry about 294 daily vehicle crossings.

104Total Bridges
1Poor (1.0%)
66Fair (63.5%)
7Scour-Critical

Quote-Ready Local Facts

1.0%of county bridges are in poor condition, compared with 4.4% statewide and 6.7% nationally.
294daily vehicle crossings are on poor-condition bridges in the county.
7bridges are rated scour-critical, or 6.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Decatur County a Bridge Condition Exposure Score of 84/100 (B). The county has 104 bridges in the National Bridge Inventory, including 1 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 294 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

FactorWeightCounty ValuePenalty
Poor-condition bridge share401.0%1.9
Poor-condition traffic exposure250.2% of measured traffic0.1
Scour-critical bridge share206.7%13.5
Average age vs national baseline1043 years vs 48 nationally0.0
Traffic-data completeness5165,112 measured daily crossings0.0

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 Share1.0%
State Poor-Condition Share4.4%
National Poor-Condition Share6.7%
County Scour-Critical Share6.7%
Average Bridge Age43 years
Poor-Condition Traffic Exposure294 vehicles/day

Bridges to Watch

Top Bridges to Watch in Decatur County

BridgeReasonConditionDaily TrafficYear Built
Fas 69 over Stewmans CreekPoor condition + traffic exposurePoor2941950
Fap 69 over Cub CreekScour-critical foundation ratingFair5,2571973
Fap 69 over Lick CreekScour-critical foundation ratingFair3,5161966
Nfa 5577 (sa 2005) over Sulphur Fork Cub CreekScour-critical foundation ratingFair8861954
Fas 202 over Stewman CreekScour-critical foundation ratingFair5011970
Nfa A511 over Pikes Peak BranchScour-critical foundation ratingFair3201960
Nfa 5577 (sa 2007) over Cub CreekScour-critical foundation ratingFair2021954
I40 over Nfa A046High trafficFair31,1761965
I40 over Nfa A046High trafficFair31,1761965
Fap 20 over Buckner CreekHigh trafficFair7,4521932

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.