Sullivan County Bridge Report Card

Sullivan County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C77 / 100

Local infrastructure snapshot

Sullivan County, Missouri

Sullivan County has 221 bridges in the National Bridge Inventory, with 16 rated poor and 6 rated scour-critical. Its poor-condition share of 7.2% is at or below the 8.8% statewide average. Poor-condition bridges carry about 1,722 daily vehicle crossings.

221Total Bridges

16Poor (7.2%)

81Fair (36.7%)

6Scour-Critical

Quote-Ready Local Facts

7.2%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.

1,722daily vehicle crossings are on poor-condition bridges in the county.

6bridges are rated scour-critical, or 2.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Sullivan County a Bridge Condition Exposure Score of 77/100 (C). The county has 221 bridges in the National Bridge Inventory, including 16 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 1,722 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	7.2%	14.5
Poor-condition traffic exposure	25	4.3% of measured traffic	3.2
Scour-critical bridge share	20	2.7%	5.4
Average age vs national baseline	10	36 years vs 48 nationally	0.0
Traffic-data completeness	5	39,912 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	7.2%
State Poor-Condition Share	8.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.7%
Average Bridge Age	36 years
Poor-Condition Traffic Exposure	1,722 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRT Oo S over Locust CR — 572 vehicles/day Oldest Listed BridgeRT P S over Yellow CR — built in 1905 All County BridgesBrowse every bridge record in Sullivan County.

Top Bridges to Watch in Sullivan County

Bridge	Reason	Condition	Daily Traffic	Year Built
River RD over Locust CR	Poor condition + traffic exposure	Poor	40	1995
RT Oo S over Locust CR	Poor condition + traffic exposure	Poor	572	1961
RT N E over Lit Yellow CR	Poor condition + traffic exposure	Poor	435	1922
RT T S over E Locust CR	Poor condition + traffic exposure	Poor	267	1949
Mo 129 S over Spring CR	Poor condition + traffic exposure	Poor	78	1950
Mo 129 S over N Spring CR	Poor condition + traffic exposure	Poor	78	1950
RT Pp E over W Locust CR	Poor condition + traffic exposure	Poor	72	1955
Boynton RD E over E Locust CR	Poor condition + traffic exposure	Poor	50	1966
Tower RD over Yellow CR	Poor condition + traffic exposure	Poor	30	1994
Impala DR over Mussel CR	Poor condition + traffic exposure	Poor	30	1995

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.