FHWA NBI 2024 Inspection record Public-domain dataset

CO. 147

Carrying CO. 147 over BIG BRANCH

2 MI. N. SHILOH, Chambers, Alabama

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
48 t Inventory load rating

Bridge Snapshot: CO. 147

The CO. 147 bridge in Chambers, Alabama carries CO. 147 over BIG BRANCH. It was built in 1971, making it 55 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.1 meters (23 feet) end to end. Daily traffic averages 27 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 a deck rating of 5/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 47.9 metric tons.

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

How CO. 147 compares

▲ 9.6
Load rating vs Alabama average (38.3 t)
Top 21%
Higher load rating than 79% of Alabama bridges
155
Bridges in Chambers · 13 in Poor condition
CO. 147 47.9 t
Alabama average 38.3 t

Live comparison across Alabama.

Historical Sufficiency Rating

PlainBridge-computed
85.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
18.8
Essentiality /15
15.0
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
47.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1971
Material
Steel
Number of Spans
1
Structure Length
7.1 m (23 ft)
Deck Width
5.4 m (18 ft)
Owner
County Highway Agency
Avg Daily Traffic
27 vehicles/day
Structure Number
010619

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether CO. 147 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 CO. 147 against other structures in Chambers 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 CO. 147?

CO. 147 in Chambers, Alabama has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is CO. 147 inspected?

CO. 147'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 27 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CO. 147 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for CO. 147?

CO. 147 has an NBI inventory load rating of 47.9 metric tons.

Who is responsible for maintaining CO. 147?

CO. 147 is owned and maintained by County Highway Agency.

How old is CO. 147 and does age affect safety?

CO. 147 was built in 1971, making it 55 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.