FHWA NBI 2024 Inspection record Public-domain dataset

LOWER MILLIGAN SPS

Carrying LOWER MILLIGAN SPS over EAST FORK LEWIS CREEK

SEC 11 T18N R 6E B, Montgomery, Mississippi

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
37 t Inventory load rating Higher than 68% of rated Mississippi bridges

LOWER MILLIGAN SPS in Montgomery, Mississippi is rated Good in the FHWA's 2024 National Bridge Inventory.

Built in 1975, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure MS:SA4900000000033

INTERSTATE-ERA · PRESTRESS · MULTI-SPAN · DECK-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD

  • INTERSTATE-ERA 1950–1979
  • PRESTRESS Prestressed concrete
  • MULTI-SPAN 3 spans
  • DECK-LED Deck-led
  • LOCAL-ADT Local ADT
  • STANDARD-LOAD Standard load
  • CAT-GOOD Good

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: LOWER MILLIGAN SPS

The LOWER MILLIGAN SPS bridge in Montgomery, Mississippi carries LOWER MILLIGAN SPS over EAST FORK LEWIS CREEK. It was built in 1975, making it 51 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 31.1 meters (102 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 7/9, 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.

How LOWER MILLIGAN SPS compares

▲ 3.0
Load rating vs Mississippi average (33.6 t; 16,739 rated)
170
Bridges in Montgomery · 5 in Poor condition

Age against the county: built in 1975, earlier than 127 of Montgomery's 170 bridges with a recorded construction year (75%), against a county median build year of 1991. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

LOWER MILLIGAN SPS 36.6 t
Mississippi average (16,739 rated) 33.6 t

Live comparison across Mississippi bridges with a recorded inventory load rating (16,739 rated).

LOWER MILLIGAN SPS vs every rated Mississippi bridge

Inventory load rating (metric tons), FHWA NBI, this state

37 Top 32% higher than 68% of 16,739 bridges

rated Mississippi bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
36.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Montgomery inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 170 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1975
Material
Prestressed Concrete
Number of Spans
3
Structure Length
31.1 m (102 ft)
Deck Width
8.8 m (29 ft)
Owner
County Highway Agency
Avg Daily Traffic
150 vehicles/day
Structure Number
SA4900000000033

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • 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 LOWER MILLIGAN SPS 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 LOWER MILLIGAN SPS against other structures in Montgomery 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 LOWER MILLIGAN SPS?

LOWER MILLIGAN SPS in Montgomery, Mississippi has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is LOWER MILLIGAN SPS inspected?

LOWER MILLIGAN SPS'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. LOWER MILLIGAN SPS 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 LOWER MILLIGAN SPS?

LOWER MILLIGAN SPS has an NBI inventory load rating of 36.6 metric tons.

Who is responsible for maintaining LOWER MILLIGAN SPS?

LOWER MILLIGAN SPS is owned and maintained by County Highway Agency.

How old is LOWER MILLIGAN SPS and does age affect safety?

LOWER MILLIGAN SPS was built in 1975, making it 51 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.