FHWA NBI 2024 Inspection record Public-domain dataset

CR 577

Carrying CR 577 over BRANCH

0.3 MI W JCT CR 74, Jackson, Alabama

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
37 t Inventory load rating

Bridge Snapshot: CR 577

The CR 577 bridge in Jackson, Alabama carries CR 577 over BRANCH. It was built in 1986, making it 40 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 18 vehicles, placing it in the lower-traffic tier of Alabama bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 36.5 metric tons.

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

How CR 577 compares

▼ 1.8
Load rating vs Alabama average (38.3 t)
Top 43%
Higher load rating than 57% of Alabama bridges
269
Bridges in Jackson · 12 in Poor condition
CR 577 36.5 t
Alabama average 38.3 t

Live comparison across Alabama.

Historical Sufficiency Rating

PlainBridge-computed
94.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.9
Special reductions
−4.9

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

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

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

Structural Details

Year Built
1986
Material
Concrete
Number of Spans
3
Structure Length
9.1 m (30 ft)
Deck Width
12.2 m (40 ft)
Owner
County Highway Agency
Avg Daily Traffic
18 vehicles/day
Structure Number
013859

How to read this record

This page shows what the last federal inspection recorded, not whether CR 577 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 CR 577 against other structures in Jackson and across Alabama. Alabama 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 CR 577?

CR 577 in Jackson, Alabama on the FHWA's 0–9 scale.

How often is CR 577 inspected?

CR 577'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 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CR 577 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 CR 577?

CR 577 has an NBI inventory load rating of 36.5 metric tons.

Who is responsible for maintaining CR 577?

CR 577 is owned and maintained by County Highway Agency.

How old is CR 577 and does age affect safety?

CR 577 was built in 1986, making it 40 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.