FHWA NBI 2024 Inspection record Public-domain dataset

Kerby Hill Rd.

Carrying Kerby Hill Rd. over MD 210 Service Rd.

1.5 MILE SOUTH OF I-495, Howard, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
48 t Inventory load rating

Bridge Snapshot: Kerby Hill Rd.

The Kerby Hill Rd. bridge in Howard, Maryland carries Kerby Hill Rd. over MD 210 Service Rd.. It was built in 2021, making it 5 years old today. The structure is built primarily of steel and spans 2 sections, stretching 41.4 meters (136 feet) end to end. Daily traffic averages 6,525 vehicles, placing it in the moderately-trafficked tier of Maryland bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 9/9, substructure at 9/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 47.6 metric tons.

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

How Kerby Hill Rd. compares

▼ 3.5
Load rating vs Maryland average (51.1 t)
Top 44%
Higher load rating than 56% of Maryland bridges
310
Bridges in Howard · 18 in Poor condition
Kerby Hill Rd. 47.6 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
80.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
12.0
Essentiality /15
13.1
Special reductions
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
9/9
Good (7–9)
Substructure
9/9
Good (7–9)
Inventory Load Rating
47.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2021
Material
Steel
Number of Spans
2
Structure Length
41.4 m (136 ft)
Deck Width
20.1 m (66 ft)
Owner
State Highway Agency
Avg Daily Traffic
6,525 vehicles/day
Structure Number
100000160307010

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in good condition (9/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in good condition (9/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether Kerby Hill Rd. 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 Kerby Hill Rd. against other structures in Howard 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 Kerby Hill Rd.?

Kerby Hill Rd. in Howard, Maryland has a deck rating of 8/9, superstructure rating of 9/9, and substructure rating of 9/9 on the FHWA's 0–9 scale.

How often is Kerby Hill Rd. inspected?

Kerby Hill Rd.'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 6,525 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Kerby Hill Rd. is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for Kerby Hill Rd.?

Kerby Hill Rd. has an NBI inventory load rating of 47.6 metric tons.

Who is responsible for maintaining Kerby Hill Rd.?

Kerby Hill Rd. is owned and maintained by State Highway Agency.

How old is Kerby Hill Rd. and does age affect safety?

Kerby Hill Rd. was built in 2021, making it 5 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.

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.