FHWA NBI 2024 Inspection record Public-domain dataset

SPINAKER DR

Carrying SPINAKER DR over DISCOVERY BAY CANAL

SEC 13 T 8S R13W, Harrison, Mississippi

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
34 t Inventory load rating

Bridge Snapshot: SPINAKER DR

The SPINAKER DR bridge in Harrison, Mississippi carries SPINAKER DR over DISCOVERY BAY CANAL. It was built in 2012, making it 14 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 37.8 meters (124 feet) end to end. Daily traffic averages 150 vehicles, placing it in the lower-traffic tier of Mississippi bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 33.7 metric tons.

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

How SPINAKER DR compares

▼ 0.7
Load rating vs Mississippi average (34.4 t)
Bottom 49%
Lower load rating than 51% of Mississippi bridges
306
Bridges in Harrison · 16 in Poor condition
SPINAKER DR 33.7 t
Mississippi average 34.4 t

Live comparison across Mississippi.

Historical Sufficiency Rating

PlainBridge-computed
93.6 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
13.6
Special reductions
−5.0

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 How the historical reference is calculated.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
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
33.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2012
Material
Concrete
Number of Spans
4
Structure Length
37.8 m (124 ft)
Deck Width
9.4 m (31 ft)
Owner
County Highway Agency
Avg Daily Traffic
150 vehicles/day
Structure Number
SA2400000000165

Condition Analysis

  • At 8/9, the deck (driving surface) is in good shape and shows no significant wear.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether SPINAKER DR 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 SPINAKER DR against other structures in Harrison and across Mississippi. Mississippi 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 SPINAKER DR?

SPINAKER DR in Harrison, Mississippi has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is SPINAKER DR inspected?

SPINAKER DR'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 150 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SPINAKER DR 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 SPINAKER DR?

SPINAKER DR has an NBI inventory load rating of 33.7 metric tons.

Who is responsible for maintaining SPINAKER DR?

SPINAKER DR is owned and maintained by County Highway Agency.

How old is SPINAKER DR and does age affect safety?

SPINAKER DR was built in 2012, making it 14 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.