SUSSEX HGWY / US13
Carrying SUSSEX HGWY / US13 over GRAVELLY RUN
EAST OF BRIDGEVILLE, Sussex, Delaware
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SUSSEX HGWY / US13
The SUSSEX HGWY / US13 bridge in Sussex, Delaware carries SUSSEX HGWY / US13 over GRAVELLY RUN. It was built in 1951, making it 75 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.7 meters (25 feet) end to end. Daily traffic averages 23,386 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 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 42.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SUSSEX HGWY / US13 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 How the historical reference is calculated.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
- 1951
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 7.7 m (25 ft)
- Deck Width
- 38.6 m (127 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 23,386 vehicles/day
- Structure Number
- 3146A004
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether SUSSEX HGWY / US13 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 SUSSEX HGWY / US13 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 SUSSEX HGWY / US13?
SUSSEX HGWY / US13 in Sussex, Delaware has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is SUSSEX HGWY / US13 inspected?
SUSSEX HGWY / US13'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 23,386 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SUSSEX HGWY / US13 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 SUSSEX HGWY / US13?
SUSSEX HGWY / US13 has an NBI inventory load rating of 42.4 metric tons.
Who is responsible for maintaining SUSSEX HGWY / US13?
SUSSEX HGWY / US13 is owned and maintained by State Highway Agency.
How old is SUSSEX HGWY / US13 and does age affect safety?
SUSSEX HGWY / US13 was built in 1951, making it 75 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.