Somerset County Bridge Report Card

Somerset County scores 85 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B85 / 100

Local infrastructure snapshot

Somerset County, Maryland

Somerset County has 44 bridges in the National Bridge Inventory, with 3 rated poor and 0 rated scour-critical. Its poor-condition share of 6.8% is above the 4.6% statewide average. Poor-condition bridges carry about 249 daily vehicle crossings.

44Total Bridges

3Poor (6.8%)

33Fair (75.0%)

0Scour-Critical

Quote-Ready Local Facts

6.8%of county bridges are in poor condition, compared with 4.6% statewide and 6.7% nationally.

249daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Somerset County a Bridge Condition Exposure Score of 85/100 (B). The county has 44 bridges in the National Bridge Inventory, including 3 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 249 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	6.8%	13.6
Poor-condition traffic exposure	25	0.1% of measured traffic	0.1
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	51 years vs 48 nationally	1.2
Traffic-data completeness	5	230,161 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	6.8%
State Poor-Condition Share	4.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	51 years
Poor-Condition Traffic Exposure	249 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeMarumsco Road over Marumsco Creek — 141 vehicles/day Oldest Listed BridgeUS 13 over Passerdyke Creek — built in 1900 All County BridgesBrowse every bridge record in Somerset County.

Top Bridges to Watch in Somerset County

Bridge	Reason	Condition	Daily Traffic	Year Built
Marumsco Road over Marumsco Creek	Poor condition + traffic exposure	Poor	141	1950
Smith Island Road over Shanks Creek	Poor condition + traffic exposure	Poor	56	1984
Marsh Road over Shanks Creek	Poor condition + traffic exposure	Poor	52	1971
US 13 over Passerdyke Creek	High traffic	Fair	27,695	1900
US 13 NB over Manokin River	High traffic	Fair	22,370	1958
US 13 SB over Manokin River	High traffic	Fair	22,370	1964
US 13 NB over Jones Creek	High traffic	Fair	20,870	1934
US 13 NB over Kings Creek	High traffic	Fair	20,870	1962
US 13 NB over Norfolk Southern Rr	High traffic	Fair	16,470	1957
US 13 SB over Norfolk Southern Rr	High traffic	Fair	16,470	1965

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.