FHWA NBI 2024 Inspection record Public-domain dataset

GRIER NURSERY ROAD

Carrying GRIER NURSERY ROAD over DEER CREEK

1.0 MILE S OF CHERRY H RD, Harford, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
25 t Inventory load rating

Bridge Snapshot: GRIER NURSERY ROAD

The GRIER NURSERY ROAD bridge in Harford, Maryland carries GRIER NURSERY ROAD over DEER CREEK. It was built in 1955, making it 71 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 50.6 meters (166 feet) end to end. Daily traffic averages 1,660 vehicles, placing it in the moderately-trafficked tier of Maryland bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 24.5 metric tons.

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

How GRIER NURSERY ROAD compares

▼ 26.6
Load rating vs Maryland average (51.1 t)
Bottom 7%
Lower load rating than 93% of Maryland bridges
275
Bridges in Harford · 12 in Poor condition
GRIER NURSERY ROAD 24.5 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
69.5 / 100 - historical 50–79.9 band
Structural adequacy /55
47.8
Serviceability /30
8.0
Essentiality /15
13.7
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
24.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1955
Material
Steel Continuous
Number of Spans
3
Structure Length
50.6 m (166 ft)
Deck Width
8.4 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,660 vehicles/day
Structure Number
200000H-0043010

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

GRIER NURSERY ROAD is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare GRIER NURSERY ROAD against other structures in Harford 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 GRIER NURSERY ROAD?

GRIER NURSERY ROAD in Harford, Maryland has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is GRIER NURSERY ROAD inspected?

GRIER NURSERY 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 1,660 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. GRIER NURSERY ROAD is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for GRIER NURSERY ROAD?

GRIER NURSERY ROAD has an NBI inventory load rating of 24.5 metric tons.

Who is responsible for maintaining GRIER NURSERY ROAD?

GRIER NURSERY ROAD is owned and maintained by County Highway Agency.

How old is GRIER NURSERY ROAD and does age affect safety?

GRIER NURSERY ROAD was built in 1955, making it 71 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.