FHWA NBI 2024 Inspection record Public-domain dataset

I-55 FRONTAGE RD-L

Carrying I-55 FRONTAGE RD-L over DITCH NO 6

0.55 MI NO OF SH 148, Mississippi, Arkansas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
22 t Inventory load rating

Bridge Snapshot: I-55 FRONTAGE RD-L

The I-55 FRONTAGE RD-L bridge in Mississippi, Arkansas carries I-55 FRONTAGE RD-L over DITCH NO 6. It was built in 1960, making it 66 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 36.6 meters (120 feet) end to end. Daily traffic averages 18,899 vehicles, placing it in the heavily-trafficked tier of Arkansas bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 21.8 metric tons.

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

How I-55 FRONTAGE RD-L compares

▼ 3.1
Load rating vs Arkansas average (24.9 t)
Bottom 30%
Lower load rating than 70% of Arkansas bridges
115
Bridges in Mississippi · 10 in Poor condition
I-55 FRONTAGE RD-L 21.8 t
Arkansas average 24.9 t

Live comparison across Arkansas.

Historical Sufficiency Rating

PlainBridge-computed
61.6 / 100 - historical 50–79.9 band
Structural adequacy /55
43.8
Serviceability /30
10.0
Essentiality /15
10.8
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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
21.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1960
Material
Concrete
Number of Spans
4
Structure Length
36.6 m (120 ft)
Deck Width
8.4 m (28 ft)
Owner
State Highway Agency
Avg Daily Traffic
18,899 vehicles/day
Structure Number
0000000000C3284

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • 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) 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 I-55 FRONTAGE RD-L 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 I-55 FRONTAGE RD-L against other structures in Mississippi and across Arkansas. Arkansas 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 I-55 FRONTAGE RD-L?

I-55 FRONTAGE RD-L in Mississippi, Arkansas has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is I-55 FRONTAGE RD-L inspected?

I-55 FRONTAGE RD-L'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 18,899 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I-55 FRONTAGE RD-L 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 I-55 FRONTAGE RD-L?

I-55 FRONTAGE RD-L has an NBI inventory load rating of 21.8 metric tons.

Who is responsible for maintaining I-55 FRONTAGE RD-L?

I-55 FRONTAGE RD-L is owned and maintained by State Highway Agency.

How old is I-55 FRONTAGE RD-L and does age affect safety?

I-55 FRONTAGE RD-L was built in 1960, making it 66 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.