FHWA NBI 2024 Inspection record Public-domain dataset

HILLEN ROAD

Carrying HILLEN ROAD over TRIBUTARY TO HERRING RUN

0.4 MI S NORTHERN PKWY, Baltimore city, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
57 t Inventory load rating

Bridge Snapshot: HILLEN ROAD

The HILLEN ROAD bridge in Baltimore city, Maryland carries HILLEN ROAD over TRIBUTARY TO HERRING RUN. It was built in 1962, making it 64 years old today. It was last reconstructed in 2002, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 9,115 vehicles, placing it in the moderately-trafficked tier of Maryland bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 56.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How HILLEN ROAD compares

▲ 5.6
Load rating vs Maryland average (51.1 t)
Top 31%
Higher load rating than 69% of Maryland bridges
380
Bridges in Baltimore city · 27 in Poor condition
HILLEN ROAD 56.7 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
83.0 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
27.0
Essentiality /15
14.0
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
56.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1962
Last Reconstructed
2002
Material
Steel
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
14.8 m (49 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
9,115 vehicles/day
Structure Number
200000BC3504010

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether HILLEN ROAD 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 HILLEN ROAD against other structures in Baltimore city and across Maryland. Maryland 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 HILLEN ROAD?

HILLEN ROAD in Baltimore city, Maryland has a deck rating of 7/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is HILLEN ROAD inspected?

HILLEN ROAD'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 9,115 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. HILLEN ROAD 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 HILLEN ROAD?

HILLEN ROAD has an NBI inventory load rating of 56.7 metric tons.

Who is responsible for maintaining HILLEN ROAD?

HILLEN ROAD is owned and maintained by City/Municipal Highway Agency.

How old is HILLEN ROAD and does age affect safety?

HILLEN ROAD was built in 1962, making it 64 years old and last reconstructed in 2002.

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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.