Onslow County Bridge Report Card

Onslow County scores 92 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A92 / 100

Local infrastructure snapshot

Onslow County, North Carolina

Onslow County has 170 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 2.4% is at or below the 7.1% statewide average. Poor-condition bridges carry about 39,350 daily vehicle crossings.

170Total Bridges

4Poor (2.4%)

72Fair (42.4%)

1Scour-Critical

Quote-Ready Local Facts

2.4%of county bridges are in poor condition, compared with 7.1% statewide and 6.7% nationally.

39,350daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Onslow County a Bridge Condition Exposure Score of 92/100 (A). The county has 170 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 39,350 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	2.4%	4.7
Poor-condition traffic exposure	25	3.0% of measured traffic	2.2
Scour-critical bridge share	20	0.6%	1.2
Average age vs national baseline	10	30 years vs 48 nationally	0.0
Traffic-data completeness	5	1,317,647 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	2.4%
State Poor-Condition Share	7.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.6%
Average Bridge Age	30 years
Poor-Condition Traffic Exposure	39,350 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUs17 over Chaney Creek — 20,000 vehicles/day Oldest Listed BridgeUs17n over Northeast Creek — built in 1923 All County BridgesBrowse every bridge record in Onslow County.

Top Bridges to Watch in Onslow County

Bridge	Reason	Condition	Daily Traffic	Year Built
Us17 over Chaney Creek	Poor condition + traffic exposure	Poor	20,000	1957
Nc24w over Northeast Creek	Poor condition + traffic exposure	Poor	18,250	1942
Sr1109 over Harris Creek	Poor condition + traffic exposure	Poor	870	1962
Sr1333 over White Oak River	Poor condition + traffic exposure	Poor	230	1967
Sr1406 over Little Northeast	Scour-critical foundation rating	Fair	14,500	1994
Us17 over Edwards Creek	High traffic	Good	49,000	2001
Base Entry RD over Nc24	High traffic	Good	35,000	2014
Us17byp over Scales Creek	High traffic	Fair	31,500	2006
Us258 Nc24 over Blue Creek	High traffic	Fair	29,000	1982
Us17bus Nc24bus over New River	High traffic	Good	27,000	2012

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.