Adair County Bridge Report Card

Adair County scores 86 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B86 / 100

Local infrastructure snapshot

Adair County, Missouri

Adair County has 301 bridges in the National Bridge Inventory, with 17 rated poor and 1 rated scour-critical. Its poor-condition share of 5.6% is at or below the 8.8% statewide average. Poor-condition bridges carry about 4,004 daily vehicle crossings.

301Total Bridges

17Poor (5.6%)

99Fair (32.9%)

1Scour-Critical

Quote-Ready Local Facts

5.6%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.

4,004daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Adair County a Bridge Condition Exposure Score of 86/100 (B). The county has 301 bridges in the National Bridge Inventory, including 17 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 4,004 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	5.6%	11.3
Poor-condition traffic exposure	25	2.6% of measured traffic	2.0
Scour-critical bridge share	20	0.3%	0.7
Average age vs national baseline	10	32 years vs 48 nationally	0.0
Traffic-data completeness	5	152,010 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	5.6%
State Poor-Condition Share	8.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.3%
Average Bridge Age	32 years
Poor-Condition Traffic Exposure	4,004 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeMo 6 E over Hoge Br — 2,660 vehicles/day Oldest Listed BridgeMorelock Cem RD over Branch Of Spring C — built in 1900 All County BridgesBrowse every bridge record in Adair County.

Top Bridges to Watch in Adair County

Bridge	Reason	Condition	Daily Traffic	Year Built
Dupree Trail over Billy CR	Poor condition + traffic exposure	Poor	30	1996
Mo 6 E over Hoge Br	Poor condition + traffic exposure	Poor	2,660	1926
Mo 11 S over Mussel Fk	Poor condition + traffic exposure	Poor	323	1933
RT V S over N Timber CR	Poor condition + traffic exposure	Poor	267	1932
RT E E over Bear CR	Poor condition + traffic exposure	Poor	266	1947
Lincoln ST over Floyd CR	Poor condition + traffic exposure	Poor	248	1998
Missouri ST over Branch	Poor condition + traffic exposure	Poor	40	1935
Grapevine RD over Blackbird CR	Poor condition + traffic exposure	Poor	30	1960
Stukey Cemetery Tr over E Fk Chariton Rvr	Poor condition + traffic exposure	Poor	25	1970
Frontier LN over Branch Of Bear CR	Poor condition + traffic exposure	Poor	25	1998

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.