FHWA NBI 2024 Inspection record Public-domain dataset

307 HQ PARKING LOT

Carrying 307 HQ PARKING LOT over MACKS BAYOU

0.7 MI S OF TWINING RD, Bossier, Louisiana

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating Higher than 55% of rated Louisiana bridges

307 HQ PARKING LOT in Bossier, Louisiana sits above 55% of rated Louisiana bridges on inventory load rating (33 t), while its 2006 build year is earlier than 18% of Bossier's recorded-year cohort (270 bridges).

307 HQ PARKING LOT in Bossier, Louisiana is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2006, it carries 1 rated component 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 LA:AFLAAWUB06829

POST-2000 · CONCRETE · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD

  • POST-2000 2000+
  • CONCRETE Concrete
  • SINGLE-SPAN Single span
  • CULVERT-LED Culvert-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: 307 HQ PARKING LOT

The 307 HQ PARKING LOT bridge in Bossier, Louisiana carries 307 HQ PARKING LOT over MACKS BAYOU. It was built in 2006, making it 20 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 200 vehicles, placing it in the lower-traffic tier of Louisiana bridges. It is owned and maintained by Navy/Marine.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.

How 307 HQ PARKING LOT compares

▲ 0.5
Load rating vs Louisiana average (32.2 t; 12,682 of 12,698 rated)
270
Bridges in Bossier · 40 in Poor condition

Age against the county: built in 2006, earlier than 48 of Bossier's 270 bridges with a recorded construction year (18%), against a county median build year of 1979. This is one of the newer structures in its county.

307 HQ PARKING LOT 32.7 t
Louisiana average (12,682 of 12,698 rated) 32.2 t

Live comparison across Louisiana bridges with a recorded inventory load rating (12,682 of 12,698 rated).

307 HQ PARKING LOT vs every rated Louisiana bridge

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

33 Top 45% higher than 55% of 12,682 bridges

rated Louisiana 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

Culvert
7/9
Good (7–9)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Bossier inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 270 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
2006
Material
Concrete
Number of Spans
1
Structure Length
7.3 m (24 ft)
Deck Width
9.8 m (32 ft)
Owner
Navy/Marine
Avg Daily Traffic
200 vehicles/day
Structure Number
AFLAAWUB06829

How to read this record

This page shows what the last federal inspection recorded, not whether 307 HQ PARKING LOT 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 307 HQ PARKING LOT against other structures in Bossier and across Louisiana. Louisiana 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 307 HQ PARKING LOT?

307 HQ PARKING LOT in Bossier, Louisiana on the FHWA's 0–9 scale.

How often is 307 HQ PARKING LOT inspected?

307 HQ PARKING LOT'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 200 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 307 HQ PARKING LOT 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 307 HQ PARKING LOT?

307 HQ PARKING LOT has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining 307 HQ PARKING LOT?

307 HQ PARKING LOT is owned and maintained by Navy/Marine.

How old is 307 HQ PARKING LOT and does age affect safety?

307 HQ PARKING LOT was built in 2006, making it 20 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

Share this inspection record

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

XFacebookLinkedInWhatsAppEmail

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.