COASTAL HGWY/SR1NB
Carrying COASTAL HGWY/SR1NB over PED PATH
NASSAU, Sussex, Delaware
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: COASTAL HGWY/SR1NB
The COASTAL HGWY/SR1NB bridge in Sussex, Delaware carries COASTAL HGWY/SR1NB over PED PATH. It was built in 1967, making it 59 years old today. The structure is built primarily of steel and spans 3 sections, stretching 43.7 meters (143 feet) end to end. Daily traffic averages 35,563 vehicles, placing it in the heavily-trafficked tier of Delaware bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 28.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How COASTAL HGWY/SR1NB compares
Live comparison across Delaware.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1967
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 43.7 m (143 ft)
- Deck Width
- 13.1 m (43 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 35,563 vehicles/day
- Structure Number
- 3725N014
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether COASTAL HGWY/SR1NB is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare COASTAL HGWY/SR1NB against other structures in Sussex and across Delaware. Delaware bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for COASTAL HGWY/SR1NB?
COASTAL HGWY/SR1NB in Sussex, Delaware has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is COASTAL HGWY/SR1NB inspected?
COASTAL HGWY/SR1NB's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 35,563 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. COASTAL HGWY/SR1NB is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for COASTAL HGWY/SR1NB?
COASTAL HGWY/SR1NB has an NBI inventory load rating of 28.8 metric tons.
Who is responsible for maintaining COASTAL HGWY/SR1NB?
COASTAL HGWY/SR1NB is owned and maintained by State Highway Agency.
How old is COASTAL HGWY/SR1NB and does age affect safety?
COASTAL HGWY/SR1NB was built in 1967, making it 59 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.