Martin County Bridge Report Card

Martin County scores 80 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B80 / 100

Local infrastructure snapshot

Martin County, Indiana

Martin County has 104 bridges in the National Bridge Inventory, with 8 rated poor and 2 rated scour-critical. Its poor-condition share of 7.7% is above the 5.3% statewide average. Poor-condition bridges carry about 735 daily vehicle crossings.

104Total Bridges

8Poor (7.7%)

55Fair (52.9%)

2Scour-Critical

Quote-Ready Local Facts

7.7%of county bridges are in poor condition, compared with 5.3% statewide and 6.7% nationally.

735daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 1.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Martin County a Bridge Condition Exposure Score of 80/100 (B). The county has 104 bridges in the National Bridge Inventory, including 8 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 735 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	7.7%	15.4
Poor-condition traffic exposure	25	0.6% of measured traffic	0.5
Scour-critical bridge share	20	1.9%	3.8
Average age vs national baseline	10	48 years vs 48 nationally	0.2
Traffic-data completeness	5	119,901 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	7.7%
State Poor-Condition Share	5.3%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.9%
Average Bridge Age	48 years
Poor-Condition Traffic Exposure	735 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRoute H-85 over Tributary/turkey Creek — 200 vehicles/day Oldest Listed BridgeBrickyard Road over Boggs Creek — built in 1848 All County BridgesBrowse every bridge record in Martin County.

Top Bridges to Watch in Martin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Brooks Bridge Road over East Fork Of White River	Poor condition + traffic exposure	Poor	107	1894
Route H-85 over Tributary/turkey Creek	Poor condition + traffic exposure	Poor	200	1942
Deep Cut Lake Road over Beaver Creek	Poor condition + traffic exposure	Poor	100	1890
Deep Cut Lake Road over Beaver Creek	Poor condition + traffic exposure	Poor	100	1921
Deep Cut Lake Road over Beaver Creek	Poor condition + traffic exposure	Poor	97	1890
Deep Cut Lake Road over Beaver Creek	Poor condition + traffic exposure	Poor	63	1890
Friends Creek Road over Friends Creek	Poor condition + traffic exposure	Poor	52	1910
Hart Road over Boggs Creek	Poor condition + traffic exposure	Poor	16	1913
US 231 over Haw Creek	Scour-critical foundation rating	Fair	6,443	1930
US 50 over Branch Friends Creek	High traffic	Good	13,136	1930

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.